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102 results on '"A. te Slaa"'

1. Circulating tumour cells to drive the use of neoadjuvant chemotherapy in patients with muscle-invasive bladder cancer

Author

Beije, N., de Kruijff, I.E., de Jong, J.J., Klaver, S.O., de Vries, P., Jacobs, R.A.L., Somford, D.M., te Slaa, E., van der Heijden, A.G., Alfred Witjes, J., Fossion, L.M.C.L., Boevé, E.R., van der Hoeven, J., van Melick, H.H.E., Wijburg, C.J., Bickerstaffe, H., Martens, J.W.M., de Wit, R., Kraan, J., Sleijfer, S., and Boormans, J.L.

Published
2022
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3. Outcomes in Octogenarians and the Effect of Comorbidities After Intact Abdominal Aortic Aneurysm Repair in the Netherlands: A Nationwide Cohort Study

Author

Van den Akker, P.J., Akkersdijk, G.J., Akkersdijk, G.P., Akkersdijk, W.L., van Andringa de Kempenaer, M.G., Arts, C.H., Avontuur, J.A., Bakker, O.J., Balm, R., Barendregt, W.B., Bekken, J.A., Bender, M.H., Bendermacher, B.L., van den Berg, M., Berger, P., Beuk, R.J., Blankensteijn, J.D., Bleker, R.J., Blok, J.J., Bode, A.S., Bodegom, M.E., van der Bogt, K.E., Boll, A.P., Booster, M.H., Borger van der Burg, B.L., de Borst, G.J., Bos- van Rossum, W.T., Bosma, J., Botman, J.M., Bouwman, L.H., Brehm, V., de Bruijn, M.T., de Bruin, J.L., Brummel, P., van Brussel, J.P., Buijk, S.E., Buijs, M.A., Buimer, M.G., Burger, D.H., Buscher, H.C., Cancrinus, E., Castenmiller, P.H., Cazander, G., Coester, A.M., Cuypers, P.H., Daemen, J.H., Dawson, I., Dierikx, J.E., Dijkstra, M.L., Diks, J., Dinkelman, M.K., Dirven, M., Dolmans, D.E., van Doorn, R.C., van Dortmont, L.M., Drouven, J.W., van der Eb, M.M., Eefting, D., van Eijck, G.J., Elshof, J.W., Elsman, B.H., van der Elst, A., van Engeland, M.I., van Eps, R.G., Faber, M.J., de Fijter, W.M., Fioole, B., Fokkema, T.M., Frans, F.A., Fritschy, W.M., Fung Kon Jin, P.H., Geelkerken, R.H., van Gent, W.B., Glade, G.J., Govaert, B., Groenendijk, R.P., de Groot, H.G., van den Haak, R.F., de Haan, E.F., Hajer, G.F., Hamming, J.F., van Hattum, E.S., Hazenberg, C.E., Hedeman Joosten, P.P., Helleman, J.N., van der Hem, L.G., Hendriks, J.M., van Herwaarden, J.A., Heyligers, J.M., Hinnen, J.W., Hissink, R.J., Ho, G.H., den Hoed, P.T., Hoedt, M.T., van Hoek, F., Hoencamp, R., Hoffmann, W.H., Hogendoorn, W., Hoksbergen, A.W., Hollander, E.J., Hommes, M., Hopmans, C.J., Huisman, L.C., Hulsebos, R.G., Huntjens, K.M., Idu, M.M., Jacobs, M.J., van der Jagt, M.F., Jansbeken, J.R., Janssen, R.J., Jiang, H.H., de Jong, S.C., Jongbloed-Winkel, T.A., Jongkind, V., Kapma, M.R., Keller, B.P., Khodadade Jahrome, A., Kievit, J.K., Klemm, P.L., Klinkert, P., Koedam, N.A., Koelemaij, M.J., Kolkert, J.L., Koning, G.G., Koning, O.H., Konings, R., Krasznai, A.G., Krol, R.M., Kropman, R.H., Kruse, R.R., van der Laan, L., van der Laan, M.J., van Laanen, J.H., van Lammeren, G.W., Lamprou, D.A., Lardenoye, J.H., Lauret, G.J., Leenders, B.J., Legemate, D.A., Leijdekkers, V.J., Lemson, M.S., Lensvelt, M.M., Lijkwan, M.A., Lind, R.C., van der Linden, F.T., Liqui Lung, P.F., Loos, M.J., Loubert, M.C., van de Luijtgaarden, K.M., Mahmoud, D.E., Manshanden, C.G., Mattens, E.C., Meerwaldt, R., Mees, B.M., von Meijenfeldt, G.C., Menting, T.P., Metz, R., Minnee, R.C., de Mol van Otterloo, J.C., Molegraaf, M.J., Montauban van Swijndregt, Y.C., Morak, M.J., van de Mortel, R.H., Mulder, W., Nagesser, S.K., Naves, C.C., Nederhoed, J.H., Nevenzel-Putters, A.M., de Nie, A.J., Nieuwenhuis, D.H., Nieuwenhuizen, J., van Nieuwenhuizen, R.C., Nio, D., Noyez, V.J., Oomen, A.P., Oranen, B.I., Oskam, J., Palamba, H.W., Peppelenbosch, A.G., van Petersen, A.S., Petri, B.J., Pierie, M.E., Ploeg, A.J., Pol, R.A., Ponfoort, E.D., Post, I.C., Poyck, P.P., Prent, A., ten Raa, S., Raymakers, J.T., Reichart, M., Reichmann, B.L., Reijnen, M.M., de Ridder, J.A., Rijbroek, A., van Rijn, M.J., de Roo, R.A., Rouwet, E.V., Saleem, B.R., Salemans, P.B., van Sambeek, M.R., Samyn, M.G., van ’t Sant, H.P., van Schaik, J., van Schaik, P.M., Scharn, D.M., Scheltinga, M.R., Schepers, A., Schlejen, P.M., Schlosser, F.J., Schol, F.P., Scholtes, V.P., Schouten, O., Schreve, M.A., Schurink, G.W., Sikkink, C.J., te Slaa, A., Smeets, H.J., Smeets, L., Smeets, R.R., de Smet, A.A., Smit, P.C., Smits, T.M., Snoeijs, M.G., Sondakh, A.O., Speijers, M.J., van der Steenhoven, T.J., van Sterkenburg, S.M., Stigter, D.A., Stokmans, R.A., Strating, R.P., Stultiëns, G.N., Sybrandy, J.E., Teijink, J.A., Telgenkamp, B.J., Teraa, M., Testroote, M.J., Tha-In, T., The, R.M., Thijsse, W.J., Thomassen, I., Tielliu, I.F., van Tongeren, R.B., Toorop, R.J., Tournoij, E., Truijers, M., Türkcan, K., Tutein Nolthenius, R.P., Ünlü, Ç., Vaes, R.H., Vafi, A.A., Vahl, A.C., Veen, E.J., Veger, H.T., Veldman, M.G., Velthuis, S., Verhagen, H.J., Verhoeven, B.A., Vermeulen, C.F., Vermeulen, E.G., Vierhout, B.P., van der Vijver-Coppen, R.J., Visser, M.J., van der Vliet, J.A., Vlijmen - van Keulen, C.J., Voorhoeve, R., van der Vorst, J.R., Vos, A.W., de Vos, B., Vos, C.G., Vos, G.A., Voute, M.T., Vriens, B.H., Vriens, P.W., de Vries, A.C., de Vries, D.K., de Vries, J.P., de Vries, M., van der Waal, C., Waasdorp, E.J., Wallis de Vries, B.M., van Walraven, L.A., van Wanroij, J.L., Warlé, M.C., van de Water, W., van Weel, V., van Well, A.M., Welten, G.M., Welten, R.J., Wever, J.J., Wiersema, A.M., Wikkeling, O.R., Willaert, W.I., Wille, J., Willems, M.C., Willigendael, E.M., Wilschut, E.D., Wisselink, W., Witte, M.E., Wittens, C.H., Wong, C.Y., Wouda, R., Yazar, O., Yeung, K.K., Zeebregts, C.J., van Zeeland, M.L., Alberga, Anna J., Karthaus, Eleonora G., van Zwet, Erik W., de Bruin, Jorg L., van Herwaarden, Joost A., Wever, Jan J., and Verhagen, Hence J.M.

Published
2021
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4. A Composite Measure for Quality of Care in Patients with Symptomatic Carotid Stenosis Using Textbook Outcome

Author

Van den Akker, P.J., Akkersdijk, G.J., Akkersdijk, G.P., Akkersdijk, W.L., van Andringa de Kempenaer, M.G., Arts, C.H., Avontuur, J.A., Bakker, O.J., Balm, R., Barendregt, W.B., Bekken, J.A., Bender, M.H., Bendermacher, B.L., van den Berg, M., Berger, P., Beuk, R.J., Blankensteijn, J.D., Bleker, R.J., Blok, J.J., Bode, A.S., Bodegom, M.E., van der Bogt, K.E., Boll, A.P., Booster, M.H., Borger van der Burg, B.L., de Borst, G.J., Bos-van Rossum, W.T., Bosma, J., Botman, J.M., Bouwman, L.H., Brehm, V., de Bruijn, M.T., de Bruin, J.L., Brummel, P., van Brussel, J.P., Buijk, S.E., Buijs, M.A., Buimer, M.G., Burger, D.H., Buscher, H.C., Cancrinus, E., Castenmiller, P.H., Cazander, G., Coester, A.M., Cuypers, P.H., Daemen, J.H., Dawson, I., Dierikx, J.E., Dijkstra, M.L., Diks, J., Dinkelman, M.K., Dirven, M., Dolmans, D.E., van Doorn, R.C., van Dortmont, L.M., Drouven, J.W., van der Eb, M.M., Eefting, D., van Eijck, G.J., Elshof, J.W., Elsman, B.H., van der Elst, A., van Engeland, M.I., van Eps, R.G., Faber, M.J., de Fijter, W.M., Fioole, B., Fokkema, T.M., Frans, F.A., Fritschy, W.M., Fung Kon Jin, P.H., Geelkerken, R.H., van Gent, W.B., Glade, G.J., Govaert, B., Groenendijk, R.P., de Groot, H.G., van den Haak, R.F., de Haan, E.F., Hajer, G.F., Hamming, J.F., van Hattum, E.S., Hazenberg, C.E., Hedeman Joosten, P.P., Helleman, J.N., van der Hem, L.G., Hendriks, J.M., van Herwaarden, J.A., Heyligers, J.M., Hinnen, J.W., Hissink, R.J., Ho, G.H., den Hoed, P.T., Hoedt, M.T., van Hoek, F., Hoencamp, R., Hoffmann, W.H., Hogendoorn, W., Hoksbergen, A.W., Hollander, E.J., Hommes, M., Hopmans, C.J., Huisman, L.C., Hulsebos, R.G., Huntjens, K.M., Idu, M.M., Jacobs, M.J., van der Jagt, M.F., Jansbeken, J.R., Janssen, R.J., Jiang, H.H., de Jong, S.C., Jongbloed-Winkel, T.A., Jongkind, V., Kapma, M.R., Keller, B.P., Khodadade Jahrome, A., Kievit, J.K., Klemm, P.L., Klinkert, P., Koedam, N.A., Koelemaij, M.J., Kolkert, J.L., Koning, G.G., Koning, O.H., Konings, R., Krasznai, A.G., Krol, R.M., Kropman, R.H., Kruse, R.R., van der Laan, L., van der Laan, M.J., van Laanen, J.H., van Lammeren, G.W., Lamprou, D.A., Lardenoye, J.H., Lauret, G.J., Leenders, B.J., Legemate, D.A., Leijdekkers, V.J., Lemson, M.S., Lensvelt, M.M., Lijkwan, M.A., Lind, R.C., van der Linden, F.T., Liqui Lung, P.F., Loos, M.J., Loubert, M.C., van de Luijtgaarden, K.M., Mahmoud, D.E., Manshanden, C.G., Mattens, E.C., Meerwaldt, R., Mees, B.M., von Meijenfeldt, G.C., Menting, T.P., Metz, R., Minnee, R.C., de Mol van Otterloo, J.C., Molegraaf, M.J., Montauban van Swijndregt, Y.C., Morak, M.J., van de Mortel, R.H., Mulder, W., Nagesser, S.K., Naves, C.C., Nederhoed, J.H., Nevenzel-Putters, A.M., de Nie, A.J., Nieuwenhuis, D.H., Nieuwenhuizen, J., van Nieuwenhuizen, R.C., Nio, D., Noyez, V.J., Oomen, A.P., Oranen, B.I., Oskam, J., Palamba, H.W., Peppelenbosch, A.G., van Petersen, A.S., Petri, B.J., Pierie, M.E., Ploeg, A.J., Pol, R.A., Ponfoort, E.D., Post, I.C., Poyck, P.P., Prent, A., ten Raa, S., Raymakers, J.T., Reichart, M., Reichmann, B.L., Reijnen, M.M., de Ridder, J.A., Rijbroek, A., van Rijn, M.J., de Roo, R.A., Rouwet, E.V., Saleem, B.R., Salemans, P.B., van Sambeek, M.R., Samyn, M.G., van ’t Sant, H.P., van Schaik, J., van Schaik, P.M., Scharn, D.M., Scheltinga, M.R., Schepers, A., Schlejen, P.M., Schlosser, F.J., Schol, F.P., Scholtes, V.P., Schouten, O., Schreve, M.A., Schurink, G.W., Sikkink, C.J., te Slaa, A., Smeets, H.J., Smeets, L., Smeets, R.R., de Smet, A.A., Smit, P.C., Smits, T.M., Snoeijs, M.G., Sondakh, A.O., Speijers, M.J., van der Steenhoven, T.J., van Sterkenburg, S.M., Stigter, D.A., Stokmans, R.A., Strating, R.P., Stultiëns, G.N., Sybrandy, J.E., Teijink, J.A., Telgenkamp, B.J., Teraa, M., Testroote, M.J., Tha-In, T., The, R.M., Thijsse, W.J., Thomassen, I., Tielliu, I.F., van Tongeren, R.B., Toorop, R.J., Tournoij, E., Truijers, M., Türkcan, K., Tutein Nolthenius, R.P., Ünlü, Ç., Vaes, R.H., Vafi, A.A., Vahl, A.C., Veen, E.J., Veger, H.T., Veldman, M.G., Velthuis, S., Verhagen, H.J., Verhoeven, B.A., Vermeulen, C.F., Vermeulen, E.G., Vierhout, B.P., van der Vijver-Coppen, R.J., Visser, M.J., van der Vliet, J.A., Vlijmen - van Keulen, C.J., Voorhoeve, R., van der Vorst, J.R., Vos, A.W., de Vos, B., Vos, C.G., Vos, G.A., Voute, M.T., Vriens, B.H., Vriens, P.W., de Vries, A.C., de Vries, D.K., de Vries, J.P., de Vries, M., van der Waal, C., Waasdorp, E.J., Wallis de Vries, B.M., van Walraven, L.A., van Wanroij, J.L., Warlé, M.C., van de Water, W., van Weel, V., van Well, A.M., Welten, G.M., Welten, R.J., Wever, J.J., Wiersema, A.M., Wikkeling, O.R., Willaert, W.I., Wille, J., Willems, M.C., Willigendael, E.M., Wilschut, E.D., Wisselink, W., Witte, M.E., Wittens, C.H., Wong, C.Y., Wouda, R., Yazar, O., Yeung, K.K., Zeebregts, C.J., van Zeeland, M.L., Kuhrij, Laurien S., Karthaus, Eleonora G., Vahl, Anco C., Willems, Martine C.M., Elshof, Jan W., and de Borst, Gert J.

Published
2020
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5. Editor's Choice – Nationwide Analysis of Patients Undergoing Iliac Artery Aneurysm Repair in the Netherlands

Author

Jalalzadeh, Hamid, Indrakusuma, Reza, Koelemay, Mark J.W., Balm, Ron, Van den Akker, L.H., Van den Akker, P.J., Akkersdijk, G.J., Akkersdijk, G.P., Akkersdijk, W.L., van Andringa de Kempenaer, M.G., Arts, C.H., Avontuur, J.A., Baal, J.G., Bakker, O.J., Balm, R., Barendregt, W.B., Bender, M.H., Bendermacher, B.L., van den Berg, M., Berger, P., Beuk, R.J., Blankensteijn, J.D., Bleker, R.J., Bockel, J.H., Bodegom, M.E., Bogt, K.E., Boll, A.P., Booster, M.H., Borger van der Burg, B.L., de Borst, G.J., Bos-van Rossum, W.T., Bosma, J., Botman, J.M., Bouwman, L.H., Breek, J.C., Brehm, V., Brinckman, M.J., van den Broek, T.H., Brom, H.L., de Bruijn, M.T., de Bruin, J.L., Brummel, P., van Brussel, J.P., Buijk, S.E., Buimer, M.G., Burger, D.H., Buscher, H.C., den Butter, G., Cancrinus, E., Castenmiller, P.H., Cazander, G., Coveliers, H.M., Cuypers, P.H., Daemen, J.H., Dawson, I., Derom, A.F., Dijkema, A.R., Diks, J., Dinkelman, M.K., Dirven, M., Dolmans, D.E., van Doorn, R.C., van Dortmont, L.M., van der Eb, M.M., Eefting, D., van Eijck, G.J., Elshof, J.W., Elsman, B.H., van der Elst, A., van Engeland, M.I., van Eps, R.G., Faber, M.J., de Fijter, W.M., Fioole, B., Fritschy, W.M., Geelkerken, R.H., van Gent, W.B., Glade, G.J., Govaert, B., Groenendijk, R.P., de Groot, H.G., van den Haak, R.F., de Haan, E.F., Hajer, G.F., Hamming, J.F., van Hattum, E.S., Hazenberg, C.E., Hedeman Joosten, P.P., Helleman, J.N., van der Hem, L.G., Hendriks, J.M., van Herwaarden, J.A., Heyligers, J.M., Hinnen, J.W., Hissink, R.J., Ho, G.H., den Hoed, P.T., Hoedt, M.T., van Hoek, F., Hoencamp, R., Hoffmann, W.H., Hoksbergen, A.W., Hollander, E.J., Huisman, L.C., Hulsebos, R.G., Huntjens, K.M., Idu, M.M., Jacobs, M.J., van der Jagt, M.F., Jansbeken, J.R., Janssen, R.J., Jiang, H.H., de Jong, S.C., Jongkind, V., Kapma, M.R., Keller, B.P., Khodadade Jahrome, A., Kievit, J.K., Klemm, P.L., Klinkert, P., Knippenberg, B., Koedam, N.A., Koelemay, M.J., Kolkert, J.L., Koning, G.G., Koning, O.H., Krasznai, A.G., Krol, R.M., Kropman, R.H., Kruse, R.R., van der Laan, L., van der Laan, M.J., van Laanen, J.H., Lardenoye, J.H., Lawson, J.A., Legemate, D.A., Leijdekkers, V.J., Lemson, M.S., Lensvelt, M.M., Lijkwan, M.A., Lind, R.C., van der Linden, F.T., Liqui Lung, P.F., Loos, M.J., Loubert, M.C., Mahmoud, D.E., Manshanden, C.G., Mattens, E.C., Meerwaldt, R., Mees, B.M., Metz, R., Minnee, R.C., de Mol van Otterloo, J.C., Moll, F.L., Montauban van Swijndregt, Y.C., Morak, M.J., van de Mortel, R.H., Mulder, W., Nagesser, S.K., Naves, C.C., Nederhoed, J.H., Nevenzel-Putters, A.M., de Nie, A.J., Nieuwenhuis, D.H., Nieuwenhuizen, J., van Nieuwenhuizen, R.C., Nio, D., Oomen, A.P., Oranen, B.I., Oskam, J., Palamba, H.W., Peppelenbosch, A.G., van Petersen, A.S., Peterson, T.F., Petri, B.J., Pierie, M.E., Ploeg, A.J., Pol, R.A., Ponfoort, E.D., Poyck, P.P., Prent, A., ten Raa, S., Raymakers, J.T., Reichart, M., Reichmann, B.L., Reijnen, M.M., Rijbroek, A., van Rijn, M.J., de Roo, R.A., Rouwet, E.V., Rupert, C.G., Saleem, B.R., van Sambeek, M.R., Samyn, M.G., van ’t Sant, H.P., van Schaik, J., van Schaik, P.M., Scharn, D.M., Scheltinga, M.R., Schepers, A., Schlejen, P.M., Schlosser, F.J., Schol, F.P., Schouten, O., Schreinemacher, M.H., Schreve, M.A., Schurink, G.W., Sikkink, C.J., Siroen, M.P., te Slaa, A., Smeets, H.J., Smeets, L., de Smet, A.A., de Smit, P., Smit, P.C., Smits, T.M., Snoeijs, M.G., Sondakh, A.O., van der Steenhoven, T.J., van Sterkenburg, S.M., Stigter, D.A., Stigter, H., Strating, R.P., Stultiëns, G.N., Sybrandy, J.E., Teijink, J.A., Telgenkamp, B.J., Testroote, M.J., The, R.M., Thijsse, W.J., Tielliu, I.F., van Tongeren, R.B., Toorop, R.J., Tordoir, J.H., Tournoij, E., Truijers, M., Türkcan, K., Tutein Nolthenius, R.P., Ünlü, Ç., Vafi, A.A., Vahl, A.C., Veen, E.J., Veger, H.T., Veldman, M.G., Verhagen, H.J., Verhoeven, B.A., Vermeulen, C.F., Vermeulen, E.G., Vierhout, B.P., Visser, M.J., van der Vliet, J.A., Vlijmen - van Keulen, C.J., Voesten, H.G., Voorhoeve, R., Vos, A.W., de Vos, B., Vos, G.A., Vriens, B.H., Vriens, P.W., de Vries, A.C., de Vries, J.P., de Vries, M., van der Waal, C., Waasdorp, E.J., Wallis de Vries, B.M., van Walraven, L.A., van Wanroij, J.L., Warlé, M.C., van Weel, V., van Well, A.M., Welten, G.M., Welten, R.J., Wever, J.J., Wiersema, A.M., Wikkeling, O.R., Willaert, W.I., Wille, J., Willems, M.C., Willigendael, E.M., Wisselink, W., Witte, M.E., Wittens, C.H., Wolf-de Jonge, I.C., Yazar, O., Zeebregts, C.J., and van Zeeland, M.L.

Published
2020
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6. “Your brain can’t wait”: perspectives of children and adolescents with acquired brain injury and their parents on physical rehabilitation during the subacute phase

Author

Revalidatiegeneeskunde Onderzoek, Brain, Child Health, Psychosociale zorg patientenzorg, Kinderbewegingszorg patientenzorg, Revalidatie Medisch Kinderen, Gmelig Meyling, Christiaan, Verschuren, Olaf, Rentinck, Ingrid C.M., van Driel, Dimara, te Slaa, Esmée, Engelbert, Raoul H., Gorter, Jan Willem, Revalidatiegeneeskunde Onderzoek, Brain, Child Health, Psychosociale zorg patientenzorg, Kinderbewegingszorg patientenzorg, Revalidatie Medisch Kinderen, Gmelig Meyling, Christiaan, Verschuren, Olaf, Rentinck, Ingrid C.M., van Driel, Dimara, te Slaa, Esmée, Engelbert, Raoul H., and Gorter, Jan Willem

Published
2024

7. Failure to Rescue – a Closer Look at Mortality Rates Has No Added Value for Hospital Comparisons but Is Useful for Team Quality Assessment in Abdominal Aortic Aneurysm Surgery in The Netherlands

Author

Van den Akker, L.H., Van den Akker, P.J., Akkersdijk, G.J., Akkersdijk, G.P., Akkersdijk, W.L., van Andringa de Kempenaer, M.G., Arts, C.H., Avontuur, J.A., Baal, J.G., Bakker, O.J., Balm, R., Barendregt, W.B., Bender, M.H., Bendermacher, B.L., van den Berg, M., Berger, P., Beuk, R.J., Blankensteijn, J.D., Bleker, R.J., Bockel, J.H., Bodegom, M.E., Bogt, K.E., Boll, A.P., Booster, M.H., Borger van der Burg, B.L., de Borst, G.J., Bos-van Rossum, W.T., Bosma, J., Botman, J.M., Bouwman, L.H., Breek, J.C., Brehm, V., Brinckman, M.J., van den Broek, T.H., Brom, H.L., de Bruijn, M.T., de Bruin, J.L., Brummel, P., van Brussel, J.P., Buijk, S.E., Buimer, M.G., Burger, D.H., Buscher, H.C., den Butter, G., Cancrinus, E., Castenmiller, P.H., Cazander, G., Coveliers, H.M., Cuypers, P.H., Daemen, J.H., Dawson, I., Derom, A.F., Dijkema, A.R., Diks, J., Dinkelman, M.K., Dirven, M., Dolmans, D.E., van Doorn, R.C., van Dortmont, L.M., van der Eb, M.M., Eefting, D., van Eijck, G.J., Elshof, J.W., Elsman, B.H., van der Elst, A., van Engeland, M.I., van Eps, R.G., Faber, M.J., de Fijter, W.M., Fioole, B., Fritschy, W.M., Geelkerken, R.H., van Gent, W.B., Glade, G.J., Govaert, B., Groenendijk, R.P., de Groot, H.G., van den Haak, R.F., de Haan, E.F., Hajer, G.F., Hamming, J.F., van Hattum, E.S., Hazenberg, C.E., Hedeman Joosten, P.P., Helleman, J.N., van der Hem, L.G., Hendriks, J.M., van Herwaarden, J.A., Heyligers, J.M., Hinnen, J.W., Hissink, R.J., Ho, G.H., den Hoed, P.T., Hoedt, M.T., van Hoek, F., Hoencamp, R., Hoffmann, W.H., Hoksbergen, A.W., Hollander, E.J., Huisman, L.C., Hulsebos, R.G., Huntjens, K.M., Idu, M.M., Jacobs, M.J., van der Jagt, M.F., Jansbeken, J.R., Janssen, R.J., Jiang, H.H., de Jong, S.C., Jongkind, V., Kapma, M.R., Keller, B.P., Khodadade Jahrome, A., Kievit, J.K., Klemm, P.L., Klinkert, P., Knippenberg, B., Koedam, N.A., Koelemaij, M.J., Kolkert, J.L., Koning, G.G., Koning, O.H., Krasznai, A.G., Krol, R.M., Kropman, R.H., Kruse, R.R., van der Laan, L., van der Laan, M.J., van Laanen, J.H., Lardenoye, J.H., Lawson, J.A., Legemate, D.A., Leijdekkers, V.J., Lemson, M.S., Lensvelt, M.M., Lijkwan, M.A., Lind, R.C., van der Linden, F.T., Liqui Lung, P.F., Loos, M.J., Loubert, M.C., Mahmoud, D.E., Manshanden, C.G., Mattens, E.C., Meerwaldt, R., Mees, B.M., Metz, R., Minnee, R.C., de Mol van Otterloo, J.C., Moll, F.L., Montauban van Swijndregt, Y.C., Morak, M.J., van de Mortel, R.H., Mulder, W., Nagesser, S.K., Naves, C.C., Nederhoed, J.H., Nevenzel-Putters, A.M., de Nie, A.J., Nieuwenhuis, D.H., Nieuwenhuizen, J., van Nieuwenhuizen, R.C., Nio, D., Oomen, A.P., Oranen, B.I., Oskam, J., Palamba, H.W., Peppelenbosch, A.G., van Petersen, A.S., Peterson, T.F., Petri, B.J., Pierie, M.E., Ploeg, A.J., Pol, R.A., Ponfoort, E.D., Poyck, P.P., Prent, A., ten Raa, S., Raymakers, J.T., Reichart, M., Reichmann, B.L., Reijnen, M.M., Rijbroek, A., van Rijn, M.J., de Roo, R.A., Rouwet, E.V., Rupert, C.G., Saleem, B.R., van Sambeek, M.R., Samyn, M.G., van ’t Sant, H.P., van Schaik, J., van Schaik, P.M., Scharn, D.M., Scheltinga, M.R., Schepers, A., Schlejen, P.M., Schlosser, F.J., Schol, F.P., Schouten, O., Schreinemacher, M.H., Schreve, M.A., Schurink, G.W., Sikkink, C.J., Siroen, M.P., te Slaa, A., Smeets, H.J., Smeets, L., de Smet, A.A., de Smit, P., Smit, P.C., Smits, T.M., Snoeijs, M.G., Sondakh, A.O., van der Steenhoven, T.J., van Sterkenburg, S.M., Stigter, D.A., Stigter, H., Strating, R.P., Stultiëns, G.N., Sybrandy, J.E., Teijink, J.A., Telgenkamp, B.J., Testroote, M.J., The, R.M., Thijsse, W.J., Tielliu, I.F., van Tongeren, R.B., Toorop, R.J., Tordoir, J.H., Tournoij, E., Truijers, M., Türkcan, K., Tutein Nolthenius, R.P., Ünlü, Ç., Vafi, A.A., Vahl, A.C., Veen, E.J., Veger, H.T., Veldman, M.G., Verhagen, H.J., Verhoeven, B.A., Vermeulen, C.F., Vermeulen, E.G., Vierhout, B.P., Visser, M.J., van der Vliet, J.A., Vlijmen-van Keulen, C.J., Voesten, H.G., Voorhoeve, R., Vos, A.W., de Vos, B., Vos, G.A., Vriens, B.H., Vriens, P.W., de Vries, A.C., de Vries, J.P., de Vries, M., van der Waal, C., Waasdorp, E.J., Wallis de Vries, B.M., van Walraven, L.A., van Wanroij, J.L., Warlé, M.C., van Weel, V., van Well, A.M., Welten, G.M., Welten, R.J., Wever, J.J., Wiersema, A.M., Wikkeling, O.R., Willaert, W.I., Wille, J., Willems, M.C., Willigendael, E.M., Wisselink, W., Witte, M.E., Wittens, C.H., Wolf-de Jonge, I.C., Yazar, O., Zeebregts, C.J., van Zeeland, M.L., Lijftogt, Niki, Karthaus, Eleonora G., Vahl, Anco, van Zwet, Erik W., van der Willik, Esmee M., Tollenaar, Robertus A.E.M., Hamming, Jaap F., and Wouters, Michel W.J.M.

Published
2018
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8. The Dutch Audit of Carotid Interventions: Transparency in Quality of Carotid Endarterectomy in Symptomatic Patients in the Netherlands

Author

Van den Akker, L.H., Van den Akker, P.J., Akkersdijk, G.J., Akkersdijk, G.P., Akkersdijk, W.L., van Andringa de Kempenaer, M.G., Arts, C.H., Avontuur, J.A., Baal, J.G., Bakker, O.J., Balm, R., Barendregt, W.B., Bender, M.H., Bendermacher, B.L., van den Berg, M., Berger, P., Beuk, R.J., Blankensteijn, J.D., Bleker, R.J., Bockel, J.H., Bodegom, M.E., Bogt, K.E., Boll, A.P., Booster, M.H., Borger van der Burg, B.L., de Borst, G.J., Bos- van Rossum, W.T., Bosma, J., Botman, J.M., Bouwman, L.H., Breek, J.C., Brehm, V., Brinckman, M.J., van den Broek, T.H., Brom, H.L., de Bruijn, M.T., de Bruin, J.L., Brummel, P., van Brussel, J.P., Buijk, S.E., Buimer, M.G., Burger, D.H., Buscher, H.C., den Butter, G., Cancrinus, E., Castenmiller, P.H., Cazander, G., Coveliers, H.M., Cuypers, P.H., Daemen, J.H., Dawson, I., Derom, A.F., Dijkema, A.R., Diks, J., Dinkelman, M.K., Dirven, M., Dolmans, D.E., van Doorn, R.C., van Dortmont, L.M., van der Eb, M.M., Eefting, D., van Eijck, G.J., Elshof, J.W., Elsman, B.H., van der Elst, A., van Engeland, M.I., van Eps, R.G., Faber, M.J., de Fijter, W.M., Fioole, B., Fritschy, W.M., Geelkerken, R.H., van Gent, W.B., Glade, G.J., Govaert, B., Groenendijk, R.P., de Groot, H.G., van den Haak, R.F., de Haan, E.F., Hajer, G.F., Hamming, J.F., van Hattum, E.S., Hazenberg, C.E., Hedeman Joosten, P.P., Helleman, J.N., van der Hem, L.G., Hendriks, J.M., van Herwaarden, J.A., Heyligers, J.M., Hinnen, J.W., Hissink, R.J., Ho, G.H., den Hoed, P.T., Hoedt, M.T., van Hoek, F., Hoencamp, R., Hoffmann, W.H., Hoksbergen, A.W., Hollander, E.J., Huisman, L.C., Hulsebos, R.G., Huntjens, K.M., Idu, M.M., Jacobs, M.J., van der Jagt, M.F., Jansbeken, J.R., Janssen, R.J., Jiang, H.H., de Jong, S.C., Jongkind, V., Kapma, M.R., Keller, B.P., Khodadade Jahrome, A., Kievit, J.K., Klemm, P.L., Klinkert, P., Knippenberg, B., Koedam, N.A., Koelemaij, M.J., Kolkert, J.L., Koning, G.G., Koning, O.H., Krasznai, A.G., Krol, R.M., Kropman, R.H., Kruse, R.R., van der Laan, L., van der Laan, M.J., van Laanen, J.H., Lardenoye, J.H., Lawson, J.A., Legemate, D.A., Leijdekkers, V.J., Lemson, M.S., Lensvelt, M.M., Lijkwan, M.A., Lind, R.C., van der Linden, F.T., Liqui Lung, P.F., Loos, M.J., Loubert, M.C., Mahmoud, D.E., Manshanden, C.G., Mattens, E.C., Meerwaldt, R., Mees, B.M., Metz, R., Minnee, R.C., de Mol van Otterloo, J.C., Moll, F.L., Montauban van Swijndregt, Y.C., Morak, M.J., van de Mortel, R.H., Mulder, W., Nagesser, S.K., Naves, C.C., Nederhoed, J.H., Nevenzel-Putters, A.M., de Nie, A.J., Nieuwenhuis, D.H., Nieuwenhuizen, J., van Nieuwenhuizen, R.C., Nio, D., Oomen, A.P., Oranen, B.I., Oskam, J., Palamba, H.W., Peppelenbosch, A.G., van Petersen, A.S., Peterson, T.F., Petri, B.J., Pierie, M.E., Ploeg, A.J., Pol, R.A., Ponfoort, E.D., Poyck, P.P., Prent, A., ten Raa, S., Raymakers, J.T., Reichart, M., Reichmann, B.L., Reijnen, M.M., Rijbroek, A., van Rijn, M.J., de Roo, R.A., Rouwet, E.V., Rupert, C.G., Saleem, B.R., van Sambeek, M.R., Samyn, M.G., van 't Sant, H.P., van Schaik, J., van Schaik, P.M., Scharn, D.M., Scheltinga, M.R., Schepers, A., Schlejen, P.M., Schlosser, F.J., Schol, F.P., Schouten, O., Schreinemacher, M.H., Schreve, M.A., Schurink, G.W., Sikkink, C.J., Siroen, M.P., te Slaa, A., Smeets, H.J., Smeets, L., de Smet, A.A., de Smit, P., Smit, P.C., Smits, T.M., Snoeijs, M.G., Sondakh, A.O., van der Steenhoven, T.J., van Sterkenburg, S.M., Stigter, D.A., Stigter, H., Strating, R.P., Stultiëns, D., Sybrandy, J.E., Teijink, J.A., Telgenkamp, B.J., Testroote, M.J., The, R.M., Thijsse, W.J., Tielliu, I.F., van Tongeren, R.B., Toorop, R.J., Tordoir, J.H., Tournoij, E., Truijers, M., Türkcan, K., Tutein Nolthenius, R.P., Ünlü, Ç., Vafi, A.A., Vahl, A.C., Veen, E.J., Veger, H.T., Veldman, M.G., Verhagen, H.J., Verhoeven, B.A., Vermeulen, C.F., Vermeulen, E.G., Vierhout, B.P., Visser, M.J., van der Vliet, J.A., Vlijmen - van Keulen, C.J., Voesten, H.G., Voorhoeve, R., Vos, A.W., de Vos, B., Vos, G.A., Vriens, B.H., Vriens, P.W., de Vries, A.C., de Vries, J.P., de Vries, M., van der Waal, C., Waasdorp, E.J., Wallis de Vries, B.M., van Walraven, L.A., van Wanroij, J.L., Warlé, M.C., van Weel, V., van Well, A.M., Welten, G.M., Welten, R.J., Wever, J.J., Wiersema, A.M., Wikkeling, O.R., Willaert, W.I., Wille, J., Willems, M.C., Willigendael, E.M., Wisselink, W., Witte, M.E., Wittens, C.H., Wolf-de Jonge, I.C., Yazar, O., Zeebregts, C.J., van Zeeland, M.L., de Borst, Gert J., Elsman, Bernard H.P., Elshof, Jan-Willem, Geelkerken, Robert H., Hamming, Jaap F., Vahl, Anco, Willems, Martine C., Karthaus, Eleonora G., Kuhrij, Laurien S., and Wouters, Michel W.J.M.

Published
2018
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12. Nationwide Outcomes of Octogenarians Following Open or Endovascular Management After Ruptured Abdominal Aortic Aneurysms

Author

Anna J. Alberga, Jorg L. de Bruin, Frederico Bastos Gonçalves, Eleonora G. Karthaus, Janneke A. Wilschut, Joost A. van Herwaarden, Jan J. Wever, Hence J. M. Verhagen, Van den Akker PJ, Akkersdijk GJ, Akkersdijk GP, Akkersdijk WL, van Andringa de Kempenaer MG, Arts CH, Avontuur JA, Bakker OJ, Balm R, Barendregt WB, Bekken JA, Bender MH, Bendermacher BL, van den Berg M, Berger P, Beuk RJ, Blankensteijn JD, Bleker RJ, Blok JJ, Bode AS, Bodegom ME, van der Bogt KE, Boll AP, Booster MH, Borger van der Burg BL, de Borst GJ, Bos-van Rossum WT, Bosma J, Botman JM, Bouwman LH, Brehm V, de Bruijn MT, de Bruin JL, Brummel P, van Brussel JP, Buijk SE, Buijs MA, Buimer MG, Burger DH, Buscher HC, Cancrinus E, Castenmiller PH, Cazander G, Coester AM, Cuypers PH, Daemen JH, Dawson I, Dierikx JE, Dijkstra ML, Diks J, Dinkelman MK, Dirven M, Dolmans DE, van Doorn RC, van Dortmont LM, Drouven JW, van der Eb MM, Eefting D, van Eijck GJ, Elshof JW, Elsman BH, van der Elst A, van Engeland MI, van Eps RG, Faber MJ, de Fijter WM, Fioole B, Fokkema TM, Frans FA, Fritschy WM, Fung Kon Jin PH, Geelkerken RH, van Gent WB, Glade GJ, Govaert B, Groenendijk RP, de Groot HG, van den Haak RF, de Haan EF, Hajer GF, Hamming JF, van Hattum ES, Hazenberg CE, Hedeman Joosten PP, Helleman JN, van der Hem LG, Hendriks JM, van Herwaarden JA, Heyligers JM, Hinnen JW, Hissink RJ, Ho GH, den Hoed PT, Hoedt MT, van Hoek F, Hoencamp R, Hoffmann WH, Hogendoorn W, Hoksbergen AW, Hollander EJ, Hommes M, Hopmans CJ, Huisman LC, Hulsebos RG, Huntjens KM, Idu MM, Jacobs MJ, van der Jagt MF, Jansbeken JR, Janssen RJ, Jiang HH, de Jong SC, Jongbloed-Winkel TA, Jongkind V, Kapma MR, Keller BP, Khodadade Jahrome A, Kievit JK, Klemm PL, Klinkert P, Koedam NA, Koelemaij MJ, Kolkert JL, Koning GG, Koning OH, Konings R, Krasznai AG, Krol RM, Kropman RH, Kruse RR, van der Laan L, van der Laa n MJ, van Laanen JH, van Lammeren GW, Lamprou DA, Lardenoye JH, Lauret GJ, Leenders BJ, Legemate DA, Leijdekkers VJ, Lemson MS, Lensvelt MM, Lijkwan MA, Lind RC, van der Linden FT, Liqui Lung PF, Loos MJ, Loubert MC, van de Luijtgaarden KM, Mahmoud DE, Manshanden CG, Mattens EC, Meerwaldt R, Mees BM, von Meijenfeldt GC, Menting TP, Metz R, Minnee RC, de Mol van Otterloo JC, Molegraaf MJ, Montauban van Swijndregt YC, Morak MJ, van de Mortel RH, Mulder W, Nagesser SK, Naves CC, Nederhoed JH, Nevenzel-Putters AM, de Nie AJ, Nieuwenhuis DH, Nieuwenhuizen J, van Nieuwenhuizen RC, Nio D, Noyez VJ, Oomen AP, Oranen BI, Oskam J, Palamba HW, Peppelenbosch AG, van Petersen AS, Petri BJ, Pierie ME, Ploeg AJ, Pol RA, Ponfoort ED, Post IC, Poyck PP, Prent A, ten Raa S, Raymakers JT, Reichart M, Reichmann BL, Reijnen MM, de Ridder JA, Rijbroek A, van Rijn MJ, de Roo RA, Rouwet EV, Saleem BR, Salemans PB, van Sambeek MR, Samyn MG, van ‘t Sant HP, van Schaik J, van Schaik PM, Scharn DM, Scheltinga MR, Schepers A, Schlejen PM, Schlosser FJ, Schol FP, Scholtes VP, Schouten O, Schreve MA, Schurink GW, Sikkink CJ, te Slaa A, Smeets HJ, Smeets L, Smeets RR, de Smet AA, Smit PC, Smits TM, Snoeijs MG, Sondakh AO, Speijers MJ, van der Steenhoven TJ, van Sterkenburg SM, Stigter DA, Stokmans RA, Strating RP, Stultiëns GN, Sybrandy JE, Teijink JA, Telgenkamp BJ, Teraa M, Testroote MJ, Tha-In T, The RM, Thijsse WJ, Thomassen I, Tielliu IF, van Tongeren RB, Toorop RJ, Tournoij E, Truijers M, Türkcan K, Tutein Nolthenius RP, Ünlü Ç, Vaes RH, Vafi AA, Vahl AC, Veen EJ, Veger HT, Veldman MG, Velthuis S, Verhagen HJ, Verhoeven BA, Vermeulen CF, Vermeulen EG, Vierhout BP, van der Vijver-Coppen RJ, Visser MJ, van der Vliet JA, Vlijmen—van Keulen CJ, Voorhoeve R, van der Vorst JR, Vos AW, de Vos B, Vos CG, Vos GA, Voute MT, Vriens BH, Vriens PW, de Vries AC, de Vries DK, de Vries JP, de Vries M, van der Waal C, Waasdorp EJ, Wallis de Vries BM, van Walraven LA, van Wanroij JL, Warlé MC, van de Water W, van Weel V, van Well AM, Welten GM, Welten RJ, Wever JJ, Wiersema AM, Wikkeling OR, Willaert WI, Wille J, Willems MC, Willigendael EM, Wilschut ED, Wisselink W, Witte ME, Wittens CH, Wong CY, Wouda R, Yazar O, Yeung KK, Zeebregts CJ, van Zeeland ML, NOVA Medical School|Faculdade de Ciências Médicas (NMS|FCM), and Surgery

Subjects
Radiology, Nuclear Medicine and imaging, Surgery, Cardiology and Cardiovascular Medicine
Abstract

Purpose: Octogenarians are known to have less-favorable outcomes following ruptured abdominal aortic aneurysm (rAAA) repair compared with their younger counterparts. Accurate information regarding perioperative outcomes following rAAA-repair is important to evaluate current treatment practice. The aim of this study was to evaluate perioperative outcomes of octogenarians and to identify factors associated with mortality and major complications after open surgical repair (OSR) or endovascular aneurysm repair (EVAR) of a rAAA using nationwide, real-world, contemporary data. Methods: All patients that underwent EVAR or OSR of an infrarenal or juxtarenal rAAA between January 1, 2013, and December 31, 2018, were prospectively registered in the Dutch Surgical Aneurysm Audit (DSAA) and included in this study. The primary outcome was the comparison of perioperative outcomes of octogenarians versus non-octogenarians, including adjustment for confounders. Secondary outcomes were the identification of factors associated with mortality and major complications in octogenarians. Results: The study included 2879 patients, of which 1146 were treated by EVAR (382 octogenarians, 33%) and 1733 were treated by OSR (410 octogenarians, 24%). Perioperative mortality of octogenarians following EVAR was 37.2% versus 14.8% in non-octogenarians (adjusted OR=2.9, 95% CI=2.8–3.0) and 50.0% versus 29.4% following OSR (adjusted OR=2.2, 95% CI=2.2–2.3). Major complication rates of octogenarians were 55.4% versus 31.8% in non-octogenarians following EVAR (OR=2.7, 95% CI=2.1–3.4), and 68% versus 49% following OSR (OR=2.2, 95% CI=1.8–2.8). Following EVAR, 30.6% of the octogenarians had an uncomplicated perioperative course (UPC) versus 49.5% in non-octogenarians (OR=0.5, 95% CI=0.4–0.6), while following OSR, UPC rates were 20.7% in octogenarians versus 32.6% in non-octogenarians (OR=0.5, 95% CI=0.4–0.7). Cardiac or pulmonary comorbidity and loss of consciousness were associated with mortality and major complications in octogenarians. Interestingly, female octogenarians had lower mortality rates following EVAR than male octogenarians (adjusted OR=0.7, 95% CI=0.6–0.8). Conclusion: Based on this nationwide study with real-world registry data, mortality rates of octogenarians following ruptured AAA-repair were high, especially after OSR. However, a substantial proportion of these octogenarians following OSR and EVAR had an uneventful recovery. Known preoperative factors do influence perioperative outcomes and reflect current treatment practice.

Published
2022

13. Optimization of Preoperative Lymph Node Staging in Patients with Muscle-Invasive Bladder Cancer Using Radiomics on Computed Tomography

Author

Starmans, Martijn P.A., Ho, Li Shen, Smits, Fokko, Beije, Nick, de Kruijff, Inge, de Jong, Joep J., Somford, Diederik M., Boevé, Egbert R., Te Slaa, Ed, Cauberg, Evelyne C.C., Klaver, Sjoerd, van der Heijden, Antoine G., Wijburg, Carl J., van de Luijtgaarden, Addy C.M., van Melick, Harm H.E., Cauffman, Ella, de Vries, Peter, Jacobs, Rens, Niessen, Wiro J., Visser, Jacob J., Klein, Stefan, Boormans, Joost L., van der Veldt, Astrid A.M., Starmans, Martijn P.A., Ho, Li Shen, Smits, Fokko, Beije, Nick, de Kruijff, Inge, de Jong, Joep J., Somford, Diederik M., Boevé, Egbert R., Te Slaa, Ed, Cauberg, Evelyne C.C., Klaver, Sjoerd, van der Heijden, Antoine G., Wijburg, Carl J., van de Luijtgaarden, Addy C.M., van Melick, Harm H.E., Cauffman, Ella, de Vries, Peter, Jacobs, Rens, Niessen, Wiro J., Visser, Jacob J., Klein, Stefan, Boormans, Joost L., and van der Veldt, Astrid A.M.

Abstract

Approximately 25% of the patients with muscle-invasive bladder cancer (MIBC) who are clinically node negative have occult lymph node metastases at radical cystectomy (RC) and pelvic lymph node dissection. The aim of this study was to evaluate preoperative CT-based radiomics to differentiate between pN+ and pN0 disease in patients with clinical stage cT2-T4aN0-N1M0 MIBC. Patients with cT2-T4aN0-N1M0 MIBC, of whom preoperative CT scans and pathology reports were available, were included from the prospective, multicenter CirGuidance trial. After manual segmentation of the lymph nodes, 564 radiomics features were extracted. A combination of different machine-learning methods was used to develop various decision models to differentiate between patients with pN+ and pN0 disease. A total of 209 patients (159 pN0; 50 pN+) were included, with a total of 3153 segmented lymph nodes. None of the individual radiomics features showed significant differences between pN+ and pN0 disease, and none of the radiomics models performed substantially better than random guessing. Hence, CT-based radiomics does not contribute to differentiation between pN+ and pN0 disease in patients with cT2-T4aN0-N1M0 MIBC.

Published
2022

14. Optimization of Preoperative Lymph Node Staging in Patients with Muscle-Invasive Bladder Cancer Using Radiomics on Computed Tomography

Author

Starmans, Martijn P. A., primary, Ho, Li Shen, additional, Smits, Fokko, additional, Beije, Nick, additional, de Kruijff, Inge, additional, de Jong, Joep J., additional, Somford, Diederik M., additional, Boevé, Egbert R., additional, te Slaa, Ed, additional, Cauberg, Evelyne C. C., additional, Klaver, Sjoerd, additional, van der Heijden, Antoine G., additional, Wijburg, Carl J., additional, van de Luijtgaarden, Addy C. M., additional, van Melick, Harm H. E., additional, Cauffman, Ella, additional, de Vries, Peter, additional, Jacobs, Rens, additional, Niessen, Wiro J., additional, Visser, Jacob J., additional, Klein, Stefan, additional, Boormans, Joost L., additional, and van der Veldt, Astrid A. M., additional

Published
2022
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15. Optimization of Preoperative Lymph Node Staging in Patients with Muscle-Invasive Bladder Cancer Using Radiomics on Computed Tomography

Author

Martijn P. A. Starmans, Li Shen Ho, Fokko Smits, Nick Beije, Inge de Kruijff, Joep J. de Jong, Diederik M. Somford, Egbert R. Boevé, Ed te Slaa, Evelyne C. C. Cauberg, Sjoerd Klaver, Antoine G. van der Heijden, Carl J. Wijburg, Addy C. M. van de Luijtgaarden, Harm H. E. van Melick, Ella Cauffman, Peter de Vries, Rens Jacobs, Wiro J. Niessen, Jacob J. Visser, Stefan Klein, Joost L. Boormans, Astrid A. M. van der Veldt, Radiology & Nuclear Medicine, Medical Oncology, and Urology

Subjects
All institutes and research themes of the Radboud University Medical Center, SDG 3 - Good Health and Well-being, bladder cancer, computed tomography, machine learning, radiomics, Urological cancers Radboud Institute for Molecular Life Sciences [Radboudumc 15], Medicine (miscellaneous)
Abstract

Approximately 25% of the patients with muscle-invasive bladder cancer (MIBC) who are clinically node negative have occult lymph node metastases at radical cystectomy (RC) and pelvic lymph node dissection. The aim of this study was to evaluate preoperative CT-based radiomics to differentiate between pN+ and pN0 disease in patients with clinical stage cT2-T4aN0-N1M0 MIBC. Patients with cT2-T4aN0-N1M0 MIBC, of whom preoperative CT scans and pathology reports were available, were included from the prospective, multicenter CirGuidance trial. After manual segmentation of the lymph nodes, 564 radiomics features were extracted. A combination of different machine-learning methods was used to develop various decision models to differentiate between patients with pN+ and pN0 disease. A total of 209 patients (159 pN0; 50 pN+) were included, with a total of 3153 segmented lymph nodes. None of the individual radiomics features showed significant differences between pN+ and pN0 disease, and none of the radiomics models performed substantially better than random guessing. Hence, CT-based radiomics does not contribute to differentiation between pN+ and pN0 disease in patients with cT2-T4aN0-N1M0 MIBC.

Published
2022

17. Three-Dimensional Optical Scanning in Post-kala-azar Dermal Leishmaniasis (PKDL)

Author

Jan Wolff, Eduard E. Zijlstra, Sjoerd te Slaa, Niels P.T.J. Liberton, Ahmed Eleojo Musa, and Oral and Maxillofacial Surgery / Oral Pathology

Subjects
Male, medicine.medical_specialty, 030231 tropical medicine, Leishmaniasis, Cutaneous, 03 medical and health sciences, Young Adult, 0302 clinical medicine, Virology, medicine, Humans, Skin, Post-kala-azar dermal leishmaniasis, integumentary system, business.industry, Optical Imaging, Leishmaniasis, Articles, medicine.disease, Optical scanning, Dermatology, Infectious Diseases, Visceral leishmaniasis, Leishmaniasis, Visceral, Parasitology, business, Skin lesion
Abstract

Post–kala-azar dermal leishmaniasis may occur after successful treatment of visceral leishmaniasis and is characterized by macules, papules, or nodules in the skin, with varying size. The response to antileishmanial therapy remains difficult to assess because there are presently no reliable biomarkers. To date, skin lesions are clinically assessed for decrease in size or change in color, which is invariably subjective. Novel 3-dimensional optical scanning devices offer safe and field-adapted methods to objectively assess skin lesions for changes over time in size and color that can be quantified with great accuracy.

Published
2020
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18. Toward Optimizing Risk Adjustment in the Dutch Surgical Aneurysm Audit

Author

Niki Lijftogt, Anco Vahl, Esmee M. van der Willik, Vanessa J. Leijdekkers, Michel W.J.M. Wouters, Jaap F. Hamming, L.H. Van den Akker, P.J. Van den Akker, G.J. Akkersdijk, G.P. Akkersdijk, W.L. Akkersdijk, M.G. van Andringa de Kempenaer, C.H. Arts, J.A. Avontuur, J.G. Baal, O.J. Bakker, R. Balm, W.B. Barendregt, M.H. Bender, B.L. Bendermacher, M. van den Berg, P. Berger, R.J. Beuk, J.D. Blankensteijn, R.J. Bleker, J.H. Bockel, M.E. Bodegom, K.E. Bogt, A.P. Boll, M.H. Booster, B.L. Borger van der Burg, G.J. de Borst, W.T. Bos-van Rossum, J. Bosma, J.M. Botman, L.H. Bouwman, J.C. Breek, V. Brehm, M.J. Brinckman, T.H. van den Broek, H.L. Brom, M.T. de Bruijn, J.L. de Bruin, P. Brummel, J.P. van Brussel, S.E. Buijk, M.G. Buimer, D.H. Burger, H.C. Buscher, G. den Butter, E. Cancrinus, P.H. Castenmiller, G. Cazander, H.M. Coveliers, P.H. Cuypers, J.H. Daemen, I. Dawson, A.F. Derom, A.R. Dijkema, J. Diks, M.K. Dinkelman, M. Dirven, D.E. Dolmans, R.C. van Doorn, L.M. van Dortmont, M.M. van der Eb, D. Eefting, G.J. van Eijck, J.W. Elshof, B.H. Elsman, A. van der Elst, M.I. van Engeland, R.G. van Eps, M.J. Faber, W.M. de Fijter, B. Fioole, W.M. Fritschy, R.H. Geelkerken, W.B. van Gent, G.J. Glade, B. Govaert, R.P. Groenendijk, H.G. de Groot, R.F. van den Haak, E.F. de Haan, G.F. Hajer, J.F. Hamming, E.S. van Hattum, C.E. Hazenberg, P.P. Hedeman Joosten, J.N. Helleman, L.G. van der Hem, J.M. Hendriks, J.A. van Herwaarden, J.M. Heyligers, J.W. Hinnen, R.J. Hissink, Ho GH, P.T. den Hoed, M.T. Hoedt, F. van Hoek, R. Hoencamp, W.H. Hoffmann, A.W. Hoksbergen, E.J. Hollander, L.C. Huisman, R.G. Hulsebos, K.M. Huntjens, M.M. Idu, M.J. Jacobs, M.F. van der Jagt, J.R. Jansbeken, R.J. Janssen, H.H. Jiang, S.C. de Jong, V. Jongkind, M.R. Kapma, B.P. Keller, A. Khodadade Jahrome, J.K. Kievit, P.L. Klemm, P. Klinkert, B. Knippenberg, N.A. Koedam, M.J. Koelemaij, J.L. Kolkert, G.G. Koning, O.H. Koning, A.G. Krasznai, R.M. Krol, R.H. Kropman, R.R. Kruse, L. van der Laan, M.J. van der Laan, J.H. van Laanen, J.H. Lardenoye, J.A. Lawson, D.A. Legemate, V.J. Leijdekkers, M.S. Lemson, M.M. Lensvelt, M.A. Lijkwan, R.C. Lind, F.T. van der Linden, P.F. Liqui Lung, M.J. Loos, M.C. Loubert, D.E. Mahmoud, C.G. Manshanden, E.C. Mattens, R. Meerwaldt, B.M. Mees, R. Metz, R.C. Minnee, J.C. de Mol van Otterloo, F.L. Moll, Y.C. Montauban van Swijndregt, M.J. Morak, R.H. van de Mortel, W. Mulder, S.K. Nagesser, C.C. Naves, J.H. Nederhoed, A.M. Nevenzel-Putters, A.J. de Nie, D.H. Nieuwenhuis, J. Nieuwenhuizen, R.C. van Nieuwenhuizen, D. Nio, A.P. Oomen, B.I. Oranen, J. Oskam, H.W. Palamba, A.G. Peppelenbosch, A.S. van Petersen, T.F. Peterson, B.J. Petri, M.E. Pierie, A.J. Ploeg, R.A. Pol, E.D. Ponfoort, P.P. Poyck, A. Prent, S. ten Raa, J.T. Raymakers, M. Reichart, B.L. Reichmann, M.M. Reijnen, A. Rijbroek, M.J. van Rijn, R.A. de Roo, E.V. Rouwet, C.G. Rupert, B.R. Saleem, M.R. van Sambeek, M.G. Samyn, H.P. van 't Sant, J. van Schaik, P.M. van Schaik, D.M. Scharn, M.R. Scheltinga, A. Schepers, P.M. Schlejen, F.J. Schlosser, F.P. Schol, O. Schouten, M.H. Schreinemacher, M.A. Schreve, G.W. Schurink, C.J. Sikkink, M.P. Siroen, A. te Slaa, H.J. Smeets, L. Smeets, A.A. de Smet, P. de Smit, P.C. Smit, T.M. Smits, M.G. Snoeijs, A.O. Sondakh, T.J. van der Steenhoven, S.M. van Sterkenburg, D.A. Stigter, H. Stigter, R.P. Strating, G.N. Stultiëns, J.E. Sybrandy, J.A. Teijink, B.J. Telgenkamp, M.J. Testroote, R.M. The, W.J. Thijsse, I.F. Tielliu, R.B. van Tongeren, R.J. Toorop, J.H. Tordoir, E. Tournoij, M. Truijers, K. Türkcan, R.P. Tutein Nolthenius, Ç. Ünlü, A.A. Vafi, A.C. Vahl, E.J. Veen, H.T. Veger, M.G. Veldman, H.J. Verhagen, B.A. Verhoeven, C.F. Vermeulen, E.G. Vermeulen, B.P. Vierhout, M.J. Visser, J.A. van der Vliet, C.J. Vlijmen - van Keulen, H.G. Voesten, R. Voorhoeve, A.W. Vos, B. de Vos, G.A. Vos, B.H. Vriens, Vriens PW, A.C. de Vries, J.P. de Vries, M. de Vries, C. van der Waal, E.J. Waasdorp, B.M. Wallis de Vries, L.A. van Walraven, J.L. van Wanroij, M.C. Warlé, V. van Weel, A.M. van Well, G.M. Welten, R.J. Welten, J.J. Wever, A.M. Wiersema, O.R. Wikkeling, W.I. Willaert, J. Wille, M.C. Willems, E.M. Willigendael, W. Wisselink, M.E. Witte, C.H. Wittens, I.C. Wolf-de Jonge, O. Yazar, C.J. Zeebregts, M.L. van Zeeland, Surgery, ACS - Atherosclerosis & ischemic syndromes, Multi-Modality Medical Imaging, Gastroenterology and hepatology, Pediatrics, Hematology laboratory, Obstetrics and gynaecology, Amsterdam Movement Sciences - Restoration and Development, Public and occupational health, AGEM - Digestive immunity, Amsterdam Reproduction & Development (AR&D), ACS - Microcirculation, ACS - Diabetes & metabolism, RS: CAPHRI - R5 - Optimising Patient Care, and Epidemiologie

Subjects
Male, medicine.medical_specialty, Time Factors, SURGERY, Aortic Rupture, UT-Hybrid-D, 030204 cardiovascular system & hematology, Logistic regression, Risk Assessment, Decision Support Techniques, 030218 nuclear medicine & medical imaging, 03 medical and health sciences, 0302 clinical medicine, Predictive Value of Tests, Risk Factors, Electronic Health Records, Humans, Medicine, Prospective Studies, Registries, Prospective cohort study, Aged, Netherlands, Aged, 80 and over, ABDOMINAL AORTIC-ANEURYSM, Medical Audit, business.industry, MORTALITY, Glasgow Coma Scale, Reproducibility of Results, General Medicine, medicine.disease, Comorbidity, Abdominal aortic aneurysm, n/a OA procedure, ERA, MODEL, Treatment Outcome, Predictive value of tests, Emergency medicine, Female, Cardiology and Cardiovascular Medicine, business, Risk assessment, Vascular Surgical Procedures, Aortic Aneurysm, Abdominal, Abdominal surgery
Abstract

Background: To compare hospital outcomes of aortic aneurysm surgery, casemix correction for preoperative variables is essential. Most of these variables can be deduced from mortality risk prediction models. Our aim was to identify the optimal set of preoperative variables associated with mortality to establish a relevant and efficient casemix model.Methods: All patients prospectively registered between 2013 and 2016 in the Dutch Surgical Aneurysm Audit (DSAA) were included for the analysis. After multiple imputation for missing variables, predictors for mortality following univariable logistic regression were analyzed in a manual backward multivariable logistic regression model and compared with three standard mortality risk prediction models: Glasgow Aneurysm Score (GAS, mainly clinical parameters), Vascular Biochemical and Haematological Outcome Model (VBHOM, mainly laboratory parameters), and Dutch Aneurysm Score (DAS, both clinical and laboratory parameters). Discrimination and calibration were tested and considered good with a C-statistic > 0.8 and Hosmer-Lemeshow (H-L) P > 0.05.Results: There were 12,401 patients: 9,537 (76.9%) elective patients (EAAA), 913 (7.4%) acute symptomatic patients (SAAA), and 1,951 (15.7%) patients with acute rupture (RAAA). Overall postoperative mortality was 6.5%; 1.8% after EAAA surgery, 6.6% after SAAA, and 29.6% after RAAA surgery. The optimal set of independent variables associated with mortality was a mix of clinical and laboratory parameters: gender, age, pulmonary comorbidity, operative setting, creatinine, aneurysm size, hemoglobin, Glasgow coma scale, electrocardiography, and systolic blood pressure (C-statistic 0.871). External validation overall of VBHOM, DAS, and GAS revealed C-statistics of 0.836, 0.782, and 0.761, with an H-L of 0.028, 0.00, and 0.128, respectively.Conclusions: The optimal set of variables for casemix correction in the DSAA comprises both clinical and laboratory parameters, which can be collected easily from electronic patient files and will lead to an efficient casemix model.

Published
2019
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20. Nationwide Study to Predict Colonic Ischemia after Abdominal Aortic Aneurysm Repair in The Netherlands

Author

Saskia Irene Willemsen, Martijn Geert ten Berge, Randolph George Statius van Eps, Hugo Thomas Christian Veger, Hans van Overhagen, Lukas Carolus van Dijk, Hein Putter, Jan Jacob Wever, L.H. Van den Akker, P.J. Van den Akker, G.J. Akkersdijk, G.P. Akkersdijk, W.L. Akkersdijk, M.G. van Andringa de Kempenaer, C.H. Arts, J.A. Avontuur, J.G. Baal, O.J. Bakker, R. Balm, W.B. Barendregt, M.H. Bender, B.L. Bendermacher, M. van den Berg, P. Berger, R.J. Beuk, J.D. Blankensteijn, R.J. Bleker, J.H. Bockel, M.E. Bodegom, K.E. Bogt, A.P. Boll, M.H. Booster, B.L. Borger van der Burg, G.J. de Borst, W.T. Bos-van Rossum, J. Bosma, J.M. Botman, L.H. Bouwman, J.C. Breek, V. Brehm, M.J. Brinckman, T.H. van den Broek, H.L. Brom, M.T. de Bruijn, J.L. de Bruin, P. Brummel, J.P. van Brussel, S.E. Buijk, M.G. Buimer, D.H. Burger, H.C. Buscher, G. den Butter, E. Cancrinus, P.H. Castenmiller, G. Cazander, H.M. Coveliers, P.H. Cuypers, J.H. Daemen, I. Dawson, A.F. Derom, A.R. Dijkema, J. Diks, M.K. Dinkelman, M. Dirven, D.E. Dolmans, R.C. van Doorn, L.M. van Dortmont, M.M. van der Eb, D. Eefting, G.J. van Eijck, J.W. Elshof, B.H. Elsman, A. van der Elst, M.I. van Engeland, R.G. van Eps, M.J. Faber, W.M. de Fijter, B. Fioole, W.M. Fritschy, R.H. Geelkerken, W.B. van Gent, G.J. Glade, B. Govaert, R.P. Groenendijk, H.G. de Groot, R.F. van den Haak, E.F. de Haan, G.F. Hajer, J.F. Hamming, E.S. van Hattum, C.E. Hazenberg, P.P. Hedeman Joosten, J.N. Helleman, L.G. van der Hem, J.M. Hendriks, J.A. van Herwaarden, J.M. Heyligers, J.W. Hinnen, R.J. Hissink, G.H. Ho, P.T. den Hoed, M.T. Hoedt, F. van Hoek, R. Hoencamp, W.H. Hoffmann, A.W. Hoksbergen, E.J. Hollander, L.C. Huisman, R.G. Hulsebos, K.M. Huntjens, M.M. Idu, M.J. Jacobs, M.F. van der Jagt, J.R. Jansbeken, R.J. Janssen, H.H. Jiang, S.C. de Jong, V. Jongkind, M.R. Kapma, B.P. Keller, A. Khodadade Jahrome, J.K. Kievit, P.L. Klemm, P. Klinkert, B. Knippenberg, N.A. Koedam, M.J. Koelemaij, J.L. Kolkert, G.G. Koning, O.H. Koning, A.G. Krasznai, R.M. Krol, R.H. Kropman, R.R. Kruse, L. van der Laan, M.J. van der Laan, J.H. van Laanen, J.H. Lardenoye, J.A. Lawson, D.A. Legemate, V.J. Leijdekkers, M.S. Lemson, M.M. Lensvelt, M.A. Lijkwan, R.C. Lind, F.T. van der Linden, P.F. Liqui Lung, M.J. Loos, M.C. Loubert, D.E. Mahmoud, C.G. Manshanden, E.C. Mattens, R. Meerwaldt, B.M. Mees, R. Metz, R.C. Minnee, J.C. de Mol van Otterloo, F.L. Moll, Y.C. Montauban van Swijndregt, M.J. Morak, R.H. van de Mortel, W. Mulder, S.K. Nagesser, C.C. Naves, J.H. Nederhoed, A.M. Nevenzel-Putters, A.J. de Nie, D.H. Nieuwenhuis, J. Nieuwenhuizen, R.C. van Nieuwenhuizen, D. Nio, A.P. Oomen, B.I. Oranen, J. Oskam, H.W. Palamba, A.G. Peppelenbosch, A.S. van Petersen, T.F. Peterson, B.J. Petri, M.E. Pierie, A.J. Ploeg, R.A. Pol, E.D. Ponfoort, P.P. Poyck, A. Prent, S. ten Raa, J.T. Raymakers, M. Reichart, B.L. Reichmann, M.M. Reijnen, A. Rijbroek, M.J. van Rijn, R.A. de Roo, E.V. Rouwet, C.G. Rupert, B.R. Saleem, M.R. van Sambeek, M.G. Samyn, H.P. van’t Sant, J. van Schaik, P.M. van Schaik, D.M. Scharn, M.R. Scheltinga, A. Schepers, P.M. Schlejen, F.J. Schlosser, F.P. Schol, O. Schouten, M.H. Schreinemacher, M.A. Schreve, G.W. Schurink, C.J. Sikkink, M.P. Siroen, A. te Slaa, H.J. Smeets, L. Smeets, A.A. de Smet, P. de Smit, P.C. Smit, T.M. Smits, M.G. Snoeijs, A.O. Sondakh, T.J. van der Steenhoven, S.M. van Sterkenburg, D.A. Stigter, H. Stigter, R.P. Strating, G.N. Stultiëns, J.E. Sybrandy, J.A. Teijink, B.J. Telgenkamp, M.J. Testroote, R.M. The, W.J. Thijsse, I.F. Tielliu, R.B. van Tongeren, R.J. Toorop, J.H. Tordoir, E. Tournoij, M. Truijers, K. Türkcan, R.P. Tutein Nolthenius, Ç. Ünlü, A.A. Vafi, A.C. Vahl, E.J. Veen, H.T. Veger, M.G. Veldman, H.J. Verhagen, B.A. Verhoeven, C.F. Vermeulen, E.G. Vermeulen, B.P. Vierhout, M.J. Visser, J.A. van der Vliet, C.J. Vlijmen-van Keulen, H.G. Voesten, R. Voorhoeve, A.W. Vos, B. de Vos, G.A. Vos, B.H. Vriens, P.W. Vriens, A.C. de Vries, J.P. de Vries, M. de Vries, C. van der Waal, E.J. Waasdorp, B.M. Wallis de Vries, L.A. van Walraven, J.L. van Wanroij, M.C. Warlé, V. van Weel, A.M. van Well, G.M. Welten, R.J. Welten, J.J. Wever, A.M. Wiersema, O.R. Wikkeling, W.I. Willaert, J. Wille, M.C. Willems, E.M. Willigendael, W. Wisselink, M.E. Witte, C.H. Wittens, I.C. Wolf-de Jonge, O. Yazar, C.J. Zeebregts, M.L. van Zeeland, TechMed Centre, Multi-Modality Medical Imaging, Technical Medicine, Surgery, ACS - Atherosclerosis & ischemic syndromes, Medical Biochemistry, ACS - Diabetes & metabolism, Amsterdam Gastroenterology Endocrinology Metabolism, APH - Methodology, and APH - Quality of Care

Subjects
Male, Time Factors, medicine.medical_treatment, Vascular damage Radboud Institute for Health Sciences [Radboudumc 16], 030204 cardiovascular system & hematology, Logistic regression, Endovascular aneurysm repair, 030218 nuclear medicine & medical imaging, 0302 clinical medicine, Risk Factors, Colon/blood supply, 80 and over, Medicine, Aortic Aneurysm, Abdominal/surgery, Netherlands, Aged, 80 and over, Univariate analysis, education.field_of_study, Endovascular Procedures, General Medicine, Middle Aged, Abdominal aortic aneurysm, Aortic Aneurysm, Treatment Outcome, Elective Surgical Procedures, Cardiology, Female, Cardiology and Cardiovascular Medicine, Cohort study, medicine.medical_specialty, Colon, Population, Mesenteric Ischemia/diagnosis, Risk Assessment, 03 medical and health sciences, Blood Vessel Prosthesis Implantation, Aneurysm, Internal medicine, Humans, Endovascular Procedures/adverse effects, cardiovascular diseases, Blood Vessel Prosthesis Implantation/adverse effects, education, Aged, Retrospective Studies, business.industry, Colonic ischemia, Abdominal/surgery, medicine.disease, Mesenteric Ischemia, Surgery, Emergencies, business, Aortic Aneurysm, Abdominal
Abstract

BACKGROUND: Colonic ischemia remains a severe complication after abdominal aortic aneurysm (AAA) repair and is associated with a high mortality. With open repair being one of the main risk factors of colonic ischemia, deciding between endovascular or open aneurysm repair should be based on tailor-made medicine. This study aims to identify high-risk patients of colonic ischemia, a risk that can be taken into account while deciding on AAA treatment strategy.METHODS: A nationwide population-based cohort study of 9,433 patients who underwent an AAA operation between 2014 and 2016 was conducted. Potential risk factors were determined by reviewing prior studies and univariate analysis. With logistic regression analysis, independent predictors of intestinal ischemia were established. These variables were used to form a prediction model.RESULTS: Intestinal ischemia occurred in 267 patients (2.8%). Occurrence of intestinal ischemia was seen significantly more in open repair versus endovascular aneurysm repair (7.6% vs. 0.9%; P < 0.001). This difference remained significant after stratification by urgency of the procedure, in both intact open (4.2% vs. 0.4%; P < 0.001) and ruptured open repair (15.0% vs. 6.2%); P < 0.001). Rupture of the AAA was the most important predictor of developing intestinal ischemia (odds ratio [OR], 5.9, 95% confidence interval [CI] 4.4-8.0), followed by having a suprarenal AAA (OR 3.4; CI 1.1-10.6). Associated procedural factors were open repair (OR 2.8; 95% CI 1.9-4.2), blood loss >1L (OR 3.6; 95% CI 1.7-7.5), and prolonged operating time (OR 2.0; 95% CI 1.4-2.8). Patient characteristics included having peripheral arterial disease (OR 2.4; 95% CI 1.3-4.4), female gender (OR 1.7; 95% CI 1.2-2.4), renal insufficiency (OR 1.7; 1.3-2.2), and pulmonary history (OR 1.6; 95% CI 1.2-2.2). Age CONCLUSIONS: One of the main risk factors is open repair. Several other risk factors can contribute to developing colonic ischemia after AAA repair. The proposed prediction model can be used to identify patients at high risk for developing colonic ischemia. With the current trend in AAA repair leaning toward open repair for better long-term results, our prediction model allows a better informed decision can be made in AAA treatment strategy.

Published
2021

21. Robot-assisted Radical Cystectomy Versus Open Radical Cystectomy in Bladder Cancer Patients: A Multicentre Comparative Effectiveness Study

Author

Carl J. Wijburg, Charlotte T.J. Michels, Gerjon Hannink, Janneke P.C. Grutters, Maroeska M. Rovers, J. Alfred Witjes, Ilze E.W. van Onna, Evert J. Barten, Evert L. Koldewijn, Joost L. Boormans, Bart P. Wijsman, Ronald I. Nooter, Peter J. Zwaan, Ed te Slaa, Saskia van der Meer, Sjoerd O. Klaver, Laurent M.C.L. Fossion, Siebe D. Bos, Harm H.E.van Melick, Anna M. Leliveld, Richard P. Meijer, André N. Vis, Gerard J. Molijn, Chris L. Berendsen, and Jorg R. Oddens

Subjects
Robot assisted, medicine.medical_specialty, Complications, Urology, medicine.medical_treatment, 030232 urology & nephrology, Effectiveness, Cystectomy, 03 medical and health sciences, All institutes and research themes of the Radboud University Medical Center, Postoperative Complications, 0302 clinical medicine, Robotic Surgical Procedures, Quality of life, Urological cancers Radboud Institute for Molecular Life Sciences [Radboudumc 15], medicine, Humans, Prospective Studies, Bladder cancer, business.industry, Standard treatment, Urinary diversion, Robotics, Perioperative, medicine.disease, Confidence interval, Reconstructive and regenerative medicine Radboud Institute for Health Sciences [Radboudumc 10], Radical cystectomy, Treatment Outcome, Urinary Bladder Neoplasms, Urological cancers Radboud Institute for Health Sciences [Radboudumc 15], 030220 oncology & carcinogenesis, Propensity score matching, Quality of Life, business
Abstract

Background: Radical cystectomy with pelvic lymph node dissection (PLND) and urinary diversion in patients with bladder cancer is known for its high risk of complications. Although open radical cystectomy (ORC) is regarded as the standard treatment, robot-assisted radical cystectomy (RARC) is increasingly used in practice, despite the fact that high-quality evidence comparing the effectiveness of both techniques is lacking.Objective: To study the effectiveness of RARC compared with that of ORC, in terms of 90 d complications (Clavien-Dindo), health-related quality of life (HRQOL), and clinical outcomes.Design, setting, and participants: A prospective comparative effectiveness study was conducted in 19 Dutch centres, expert in either ORC or RARC. Follow-up visits were scheduled at 30, 90, and 365 d.Intervention: Standard ORC or RARC with PLND, using a standardised perioperative protocol. Outcome measurements and statistical analysis: The primary outcome was any-grade complications after 90 d. Secondary outcomes included HRQOL, complications (minor, major, 30 d, and 365 d), and clinical outcomes. Differences were calculated as risk differences (RDs) between the groups with 95% confidence intervals (CIs), adjusted for potential baseline differences by means of propensity score–based inverse probability of treatment weighting.Results and limitations: Between March 2016 and November 2018, 348 patients were included (n = 168 for ORC, n = 180 for RARC). At 90 d, any-grade complication rates were 63% for ORC and 56% for RARC (RD –6.4%, 95% CI –17 to 4.5). Major complication rates were 15% for ORC and 16% for RARC (RD 0.9%, 95% CI –7.0 to 8.8). Total minor complication rates were 57% for ORC and 49% for RARC (RD –7.6%, 95% CI –19 to 3.6). Analyses showed no statistically significant differences in HRQOL between ORC and RARC. Some differences were found in the secondary outcomes in favour of either RARC or ORC. The major drawback inherent to the design comprises residual confounding.Conclusions: This multicentre comparative effectiveness study showed no statistically significant differences between ORC and RARC in terms of complications and HRQOL.Patient summary: This multicentre study did not show differences in overall complication rates, health-related quality of life, mortality, and clinical and oncological outcomes between open and robot-assisted radical cystectomy in bladder cancer patients.

Published
2021

22. Outcomes in Octogenarians and the Effect of Comorbidities After Intact Abdominal Aortic Aneurysm Repair in the Netherlands: A Nationwide Cohort Study

Author

Alberga, Anna J., primary, Karthaus, Eleonora G., additional, van Zwet, Erik W., additional, de Bruin, Jorg L., additional, van Herwaarden, Joost A., additional, Wever, Jan J., additional, Verhagen, Hence J.M., additional, Van den Akker, P.J., additional, Akkersdijk, G.J., additional, Akkersdijk, G.P., additional, Akkersdijk, W.L., additional, van Andringa de Kempenaer, M.G., additional, Arts, C.H., additional, Avontuur, J.A., additional, Bakker, O.J., additional, Balm, R., additional, Barendregt, W.B., additional, Bekken, J.A., additional, Bender, M.H., additional, Bendermacher, B.L., additional, van den Berg, M., additional, Berger, P., additional, Beuk, R.J., additional, Blankensteijn, J.D., additional, Bleker, R.J., additional, Blok, J.J., additional, Bode, A.S., additional, Bodegom, M.E., additional, van der Bogt, K.E., additional, Boll, A.P., additional, Booster, M.H., additional, Borger van der Burg, B.L., additional, de Borst, G.J., additional, Bos- van Rossum, W.T., additional, Bosma, J., additional, Botman, J.M., additional, Bouwman, L.H., additional, Brehm, V., additional, de Bruijn, M.T., additional, de Bruin, J.L., additional, Brummel, P., additional, van Brussel, J.P., additional, Buijk, S.E., additional, Buijs, M.A., additional, Buimer, M.G., additional, Burger, D.H., additional, Buscher, H.C., additional, Cancrinus, E., additional, Castenmiller, P.H., additional, Cazander, G., additional, Coester, A.M., additional, Cuypers, P.H., additional, Daemen, J.H., additional, Dawson, I., additional, Dierikx, J.E., additional, Dijkstra, M.L., additional, Diks, J., additional, Dinkelman, M.K., additional, Dirven, M., additional, Dolmans, D.E., additional, van Doorn, R.C., additional, van Dortmont, L.M., additional, Drouven, J.W., additional, van der Eb, M.M., additional, Eefting, D., additional, van Eijck, G.J., additional, Elshof, J.W., additional, Elsman, B.H., additional, van der Elst, A., additional, van Engeland, M.I., additional, van Eps, R.G., additional, Faber, M.J., additional, de Fijter, W.M., additional, Fioole, B., additional, Fokkema, T.M., additional, Frans, F.A., additional, Fritschy, W.M., additional, Fung Kon Jin, P.H., additional, Geelkerken, R.H., additional, van Gent, W.B., additional, Glade, G.J., additional, Govaert, B., additional, Groenendijk, R.P., additional, de Groot, H.G., additional, van den Haak, R.F., additional, de Haan, E.F., additional, Hajer, G.F., additional, Hamming, J.F., additional, van Hattum, E.S., additional, Hazenberg, C.E., additional, Hedeman Joosten, P.P., additional, Helleman, J.N., additional, van der Hem, L.G., additional, Hendriks, J.M., additional, van Herwaarden, J.A., additional, Heyligers, J.M., additional, Hinnen, J.W., additional, Hissink, R.J., additional, Ho, G.H., additional, den Hoed, P.T., additional, Hoedt, M.T., additional, van Hoek, F., additional, Hoencamp, R., additional, Hoffmann, W.H., additional, Hogendoorn, W., additional, Hoksbergen, A.W., additional, Hollander, E.J., additional, Hommes, M., additional, Hopmans, C.J., additional, Huisman, L.C., additional, Hulsebos, R.G., additional, Huntjens, K.M., additional, Idu, M.M., additional, Jacobs, M.J., additional, van der Jagt, M.F., additional, Jansbeken, J.R., additional, Janssen, R.J., additional, Jiang, H.H., additional, de Jong, S.C., additional, Jongbloed-Winkel, T.A., additional, Jongkind, V., additional, Kapma, M.R., additional, Keller, B.P., additional, Khodadade Jahrome, A., additional, Kievit, J.K., additional, Klemm, P.L., additional, Klinkert, P., additional, Koedam, N.A., additional, Koelemaij, M.J., additional, Kolkert, J.L., additional, Koning, G.G., additional, Koning, O.H., additional, Konings, R., additional, Krasznai, A.G., additional, Krol, R.M., additional, Kropman, R.H., additional, Kruse, R.R., additional, van der Laan, L., additional, van der Laan, M.J., additional, van Laanen, J.H., additional, van Lammeren, G.W., additional, Lamprou, D.A., additional, Lardenoye, J.H., additional, Lauret, G.J., additional, Leenders, B.J., additional, Legemate, D.A., additional, Leijdekkers, V.J., additional, Lemson, M.S., additional, Lensvelt, M.M., additional, Lijkwan, M.A., additional, Lind, R.C., additional, van der Linden, F.T., additional, Liqui Lung, P.F., additional, Loos, M.J., additional, Loubert, M.C., additional, van de Luijtgaarden, K.M., additional, Mahmoud, D.E., additional, Manshanden, C.G., additional, Mattens, E.C., additional, Meerwaldt, R., additional, Mees, B.M., additional, von Meijenfeldt, G.C., additional, Menting, T.P., additional, Metz, R., additional, Minnee, R.C., additional, de Mol van Otterloo, J.C., additional, Molegraaf, M.J., additional, Montauban van Swijndregt, Y.C., additional, Morak, M.J., additional, van de Mortel, R.H., additional, Mulder, W., additional, Nagesser, S.K., additional, Naves, C.C., additional, Nederhoed, J.H., additional, Nevenzel-Putters, A.M., additional, de Nie, A.J., additional, Nieuwenhuis, D.H., additional, Nieuwenhuizen, J., additional, van Nieuwenhuizen, R.C., additional, Nio, D., additional, Noyez, V.J., additional, Oomen, A.P., additional, Oranen, B.I., additional, Oskam, J., additional, Palamba, H.W., additional, Peppelenbosch, A.G., additional, van Petersen, A.S., additional, Petri, B.J., additional, Pierie, M.E., additional, Ploeg, A.J., additional, Pol, R.A., additional, Ponfoort, E.D., additional, Post, I.C., additional, Poyck, P.P., additional, Prent, A., additional, ten Raa, S., additional, Raymakers, J.T., additional, Reichart, M., additional, Reichmann, B.L., additional, Reijnen, M.M., additional, de Ridder, J.A., additional, Rijbroek, A., additional, van Rijn, M.J., additional, de Roo, R.A., additional, Rouwet, E.V., additional, Saleem, B.R., additional, Salemans, P.B., additional, van Sambeek, M.R., additional, Samyn, M.G., additional, van ’t Sant, H.P., additional, van Schaik, J., additional, van Schaik, P.M., additional, Scharn, D.M., additional, Scheltinga, M.R., additional, Schepers, A., additional, Schlejen, P.M., additional, Schlosser, F.J., additional, Schol, F.P., additional, Scholtes, V.P., additional, Schouten, O., additional, Schreve, M.A., additional, Schurink, G.W., additional, Sikkink, C.J., additional, te Slaa, A., additional, Smeets, H.J., additional, Smeets, L., additional, Smeets, R.R., additional, de Smet, A.A., additional, Smit, P.C., additional, Smits, T.M., additional, Snoeijs, M.G., additional, Sondakh, A.O., additional, Speijers, M.J., additional, van der Steenhoven, T.J., additional, van Sterkenburg, S.M., additional, Stigter, D.A., additional, Stokmans, R.A., additional, Strating, R.P., additional, Stultiëns, G.N., additional, Sybrandy, J.E., additional, Teijink, J.A., additional, Telgenkamp, B.J., additional, Teraa, M., additional, Testroote, M.J., additional, Tha-In, T., additional, The, R.M., additional, Thijsse, W.J., additional, Thomassen, I., additional, Tielliu, I.F., additional, van Tongeren, R.B., additional, Toorop, R.J., additional, Tournoij, E., additional, Truijers, M., additional, Türkcan, K., additional, Tutein Nolthenius, R.P., additional, Ünlü, Ç., additional, Vaes, R.H., additional, Vafi, A.A., additional, Vahl, A.C., additional, Veen, E.J., additional, Veger, H.T., additional, Veldman, M.G., additional, Velthuis, S., additional, Verhagen, H.J., additional, Verhoeven, B.A., additional, Vermeulen, C.F., additional, Vermeulen, E.G., additional, Vierhout, B.P., additional, van der Vijver-Coppen, R.J., additional, Visser, M.J., additional, van der Vliet, J.A., additional, Vlijmen - van Keulen, C.J., additional, Voorhoeve, R., additional, van der Vorst, J.R., additional, Vos, A.W., additional, de Vos, B., additional, Vos, C.G., additional, Vos, G.A., additional, Voute, M.T., additional, Vriens, B.H., additional, Vriens, P.W., additional, de Vries, A.C., additional, de Vries, D.K., additional, de Vries, J.P., additional, de Vries, M., additional, van der Waal, C., additional, Waasdorp, E.J., additional, Wallis de Vries, B.M., additional, van Walraven, L.A., additional, van Wanroij, J.L., additional, Warlé, M.C., additional, van de Water, W., additional, van Weel, V., additional, van Well, A.M., additional, Welten, G.M., additional, Welten, R.J., additional, Wever, J.J., additional, Wiersema, A.M., additional, Wikkeling, O.R., additional, Willaert, W.I., additional, Wille, J., additional, Willems, M.C., additional, Willigendael, E.M., additional, Wilschut, E.D., additional, Wisselink, W., additional, Witte, M.E., additional, Wittens, C.H., additional, Wong, C.Y., additional, Wouda, R., additional, Yazar, O., additional, Yeung, K.K., additional, Zeebregts, C.J., additional, and van Zeeland, M.L., additional

Published
2021
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23. A chest-CT and clinical chemistry based flowchart for rapid COVID-19 triage at emergency departments – a multicenter study

Author

Postma B, Bob Smit, Te Slaa Cmj, Thelen Mhm, Ron Kusters, Veuger M, Kluge C, Mée Ad, Schuijt M, van Marum R, Elisen Mglm, Steef Kurstjens, van der Horst A, Eva-Leonne Göttgens, Lamboo Eh, Kluiters-de Hingh Yc, de Jager P, and Robert Herpers

Subjects
Clinical trial, business.industry, Good clinical practice, medicine, Subject (documents), Retrospective cohort study, Emergency department, Medical emergency, medicine.disease, business, Triage, Checklist, Declaration of Helsinki
Abstract

Background Due to the large number of patients with coronavirus disease 19 (COVID-19), rapid diagnosis at the emergency department (ED) is of critical importance. In this study we have developed a flowchart based on two well-known diagnostic methods: the 'corona-score' and the 'CO-RADS'. This flowchart can be used in hospitals that use chest-CT, instead of chest X-ray, for COVID-19 suspected patients at the ED. Methods ED patients (n=1904) from the Jeroen Bosch Hospital, Amphia Hospital, HagaHospital, Elisabeth TweeSteden Hospital, Bernhoven Hospital and Slingeland Hospital were included. A laboratory-based 'corona-score', without radiology, called the 'lab-corona-score' was combined with a chest-CT based radiology scoring system (CO-RADS), to develop a flowchart. The performance was assessed by sensitivity/specificity analyses using the RT-PCR outcome or the physician's final diagnosis as golden standard. Results Out of the 1904 patients, 611 (32.1%) patients tested positive for the SARS-CoV-2 virus. The lab-corona-score alone had an AUC of 0.86, a sensitivity of 87% and a specificity of 88% using cut-off values of 0−2 (negative) and 8−10 (positive). Of 255 patients, from the Amphia and Slingeland Hospitals, a CO-RADS score was determined. The flowchart, which combined the 'CO-RADS' with the 'lab-corona-score', was developed based on data from Slingeland Hospital (sensitivity 97%, specificity 96%). Hereafter, the performance of the flowchart was validated using an independent dataset from Amphia hospital, and reached a sensitivity of 98% and specificity of 93%. A decision could be made in 79% of the patients, which was correct in 95% of the cases. Conclusion This flowchart, based on radiology (CO-RADS) and clinical chemistry parameters (lab-corona-score), results in a rapid and accurate diagnosis of COVID-19 at the ED. ### Competing Interest Statement The authors have declared no competing interest. ### Funding Statement No funding ### Author Declarations I confirm all relevant ethical guidelines have been followed, and any necessary IRB and/or ethics committee approvals have been obtained. Yes The details of the IRB/oversight body that provided approval or exemption for the research described are given below: This study was conducted according to the declaration of Helsinki and Guidelines for Good Clinical Practice. The execution of this retrospective observational study of patient records was approved by the regional Medical Research Ethics Committee (METC Brabant), which declared that the use of anonymized patient data is not subject to the regulations of the WMO (Dutch Medical Research Involving Human Subjects Act). Consent was obtained by an opt-out agreement. All necessary patient/participant consent has been obtained and the appropriate institutional forms have been archived. Yes I understand that all clinical trials and any other prospective interventional studies must be registered with an ICMJE-approved registry, such as ClinicalTrials.gov. I confirm that any such study reported in the manuscript has been registered and the trial registration ID is provided (note: if posting a prospective study registered retrospectively, please provide a statement in the trial ID field explaining why the study was not registered in advance). Yes I have followed all appropriate research reporting guidelines and uploaded the relevant EQUATOR Network research reporting checklist(s) and other pertinent material as supplementary files, if applicable. Yes Data and further information are available upon reasonable request

Published
2020
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24. National Numbers of Secondary Aortic Reinterventions after Primary Abdominal Aortic Aneurysm Surgery from the Dutch Surgical Aneurysm Audit

Author

Eleonora G. Karthaus, Anco Vahl, Bernard H.P. Elsman, Michel W.J.M. Wouters, Gert J. de Borst, Jaap F. Hamming, P.J. Van den Akker, G.J. Akkersdijk, G.P. Akkersdijk, W.L. Akkersdijk, M.G. van Andringa de Kempenaer, C.H. Arts, J.A. Avontuur, O.J. Bakker, R. Balm, W.B. Barendregt, J.A. Bekken, M.H. Bender, B.L. Bendermacher, M. van den Berg, P. Berger, R.J. Beuk, J.D. Blankensteijn, R.J. Bleker, J.J. Blok, A.S. Bode, M.E. Bodegom, K.E. van der Bogt, A.P. Boll, M.H. Booster, B.L. Borger van der Burg, G.J. de Borst, W.T. Bos-van Rossum, J. Bosma, J.M. Botman, L.H. Bouwman, V. Brehm, M.T. de Bruijn, J.L. de Bruin, P. Brummel, J.P. van Brussel, S.E. Buijk, M.A. Buijs, M.G. Buimer, D.H. Burger, H.C. Buscher, E. Cancrinus, P.H. Castenmiller, G. Cazander, A.M. Coester, P.H. Cuypers, J.H. Daemen, I. Dawson, J.E. Dierikx, M.L. Dijkstra, J. Diks, M.K. Dinkelman, M. Dirven, D.E. Dolmans, R.C. van Doorn, L.M. van Dortmont, J.W. Drouven, M.M. van der Eb, D. Eefting, G.J. van Eijck, J.W. Elshof, B.H. Elsman, A. van der Elst, M.I. van Engeland, R.G. van Eps, M.J. Faber, W.M. de Fijter, B. Fioole, T.M. Fokkema, F.A. Frans, W.M. Fritschy, P.H. Fung Kon Jin, R.H. Geelkerken, W.B. van Gent, G.J. Glade, B. Govaert, R.P. Groenendijk, H.G. de Groot, R.F. van den Haak, E.F. de Haan, G.F. Hajer, J.F. Hamming, E.S. van Hattum, C.E. Hazenberg, P.P. Hedeman Joosten, J.N. Helleman, L.G. van der Hem, J.M. Hendriks, J.A. van Herwaarden, J.M. Heyligers, J.W. Hinnen, R.J. Hissink, G.H. Ho, P.T. den Hoed, M.T. Hoedt, F. van Hoek, R. Hoencamp, W.H. Hoffmann, W. Hogendoorn, A.W. Hoksbergen, E.J. Hollander, M. Hommes, C.J. Hopmans, L.C. Huisman, R.G. Hulsebos, K.M. Huntjens, M.M. Idu, M.J. Jacobs, M.F. van der Jagt, J.R. Jansbeken, R.J. Janssen, H.H. Jiang, S.C. de Jong, T.A. Jongbloed-Winkel, V. Jongkind, M.R. Kapma, B.P. Keller, A. Khodadade Jahrome, J.K. Kievit, P.L. Klemm, P. Klinkert, N.A. Koedam, M.J. Koelemaij, J.L. Kolkert, G.G. Koning, O.H. Koning, R. Konings, A.G. Krasznai, R.M. Krol, R.H. Kropman, R.R. Kruse, L. van der Laan, M.J. van der Laan, J.H. van Laanen, G.W. van Lammeren, D.A. Lamprou, J.H. Lardenoye, G.J. Lauret, B.J. Leenders, D.A. Legemate, V.J. Leijdekkers, M.S. Lemson, M.M. Lensvelt, M.A. Lijkwan, R.C. Lind, F.T. van der Linden, P.F. Liqui Lung, M.J. Loos, M.C. Loubert, K.M. van de Luijtgaarden, D.E. Mahmoud, C.G. Manshanden, E.C. Mattens, R. Meerwaldt, B.M. Mees, G.C. von Meijenfeldt, T.P. Menting, R. Metz, R.C. Minnee, J.C. de Mol van Otterloo, M.J. Molegraaf, Y.C. Montauban van Swijndregt, M.J. Morak, R.H. van de Mortel, W. Mulder, S.K. Nagesser, C.C. Naves, J.H. Nederhoed, A.M. Nevenzel-Putters, A.J. de Nie, D.H. Nieuwenhuis, J. Nieuwenhuizen, R.C. van Nieuwenhuizen, D. Nio, V.J. Noyez, A.P. Oomen, B.I. Oranen, J. Oskam, H.W. Palamba, A.G. Peppelenbosch, A.S. van Petersen, B.J. Petri, M.E. Pierie, A.J. Ploeg, R.A. Pol, E.D. Ponfoort, I.C. Post, P.P. Poyck, A. Prent, S. ten Raa, J.T. Raymakers, M. Reichart, B.L. Reichmann, M.M. Reijnen, J.A. de Ridder, A. Rijbroek, M.J. van Rijn, R.A. de Roo, E.V. Rouwet, B.R. Saleem, P.B. Salemans, M.R. van Sambeek, M.G. Samyn, H.P. van't Sant, J. van Schaik, P.M. van Schaik, D.M. Scharn, M.R. Scheltinga, A. Schepers, P.M. Schlejen, F.J. Schlosser, F.P. Schol, V.P. Scholtes, O. Schouten, M.A. Schreve, G.W. Schurink, C.J. Sikkink, A. te Slaa, H.J. Smeets, L. Smeets, R.R. Smeets, A.A. de Smet, P.C. Smit, T.M. Smits, M.G. Snoeijs, A.O. Sondakh, M.J. Speijers, T.J. van der Steenhoven, S.M. van Sterkenburg, D.A. Stigter, R.A. Stokmans, R.P. Strating, G.N. Stultiëns, J.E. Sybrandy, J.A. Teijink, B.J. Telgenkamp, M. Teraa, M.J. Testroote, T. Tha-In, R.M. The, W.J. Thijsse, I. Thomassen, I.F. Tielliu, R.B. van Tongeren, R.J. Toorop, E. Tournoij, M. Truijers, K. Türkcan, R.P. Tutein Nolthenius, Ç. Ünlü, R.H. Vaes, A.A. Vafi, A.C. Vahl, E.J. Veen, H.T. Veger, M.G. Veldman, S. Velthuis, H.J. Verhagen, B.A. Verhoeven, C.F. Vermeulen, E.G. Vermeulen, B.P. Vierhout, R.J. van der Vijver-Coppen, M.J. Visser, J.A. van der Vliet, C.J. Vlijmen-van Keulen, R. Voorhoeve, J.R. van der Vorst, A.W. Vos, B. de Vos, C.G. Vos, G.A. Vos, M.T. Voute, B.H. Vriens, P.W. Vriens, A.C. de Vries, D.K. de Vries, J.P. de Vries, M. de Vries, C. van der Waal, E.J. Waasdorp, W. de Vries, L.A. van Walraven, J.L. van Wanroij, M.C. Warlé, W. van de Water, V. van Weel, A.M. van Well, G.M. Welten, R.J. Welten, J.J. Wever, A.M. Wiersema, O.R. Wikkeling, W.I. Willaert, J. Wille, M.C. Willems, E.M. Willigendael, E.D. Wilschut, W. Wisselink, M.E. Witte, C.H. Wittens, C.Y. Wong, R. Wouda, O. Yazar, K.K. Yeung, C.J. Zeebregts, M.L. van Zeeland, Surgery, ACS - Atherosclerosis & ischemic syndromes, Pathology, VU University medical center, Pediatrics, Dermatology, ACS - Microcirculation, ACS - Diabetes & metabolism, Amsterdam Gastroenterology Endocrinology Metabolism, Multi-Modality Medical Imaging, Technical Medicine, RS: CAPHRI - R5 - Optimising Patient Care, and Epidemiologie

Subjects
Male, Time Factors, medicine.medical_treatment, Vascular damage Radboud Institute for Health Sciences [Radboudumc 16], UT-Hybrid-D, EVAR TRIAL 1, OPEN REPAIR, 030204 cardiovascular system & hematology, Endovascular aneurysm repair, 030218 nuclear medicine & medical imaging, Postoperative Complications, 0302 clinical medicine, LONG-TERM OUTCOMES, Risk Factors, FAILURE, Registries, skin and connective tissue diseases, Netherlands, Aged, 80 and over, Medical Audit, Endovascular Procedures, General Medicine, EDITORS CHOICE, Abdominal aortic aneurysm, Treatment Outcome, Cohort, cardiovascular system, INSTRUCTIONS, Female, Cardiology and Cardiovascular Medicine, Reoperation, medicine.medical_specialty, Blood Vessel Prosthesis Implantation, 03 medical and health sciences, Aneurysm, medicine, Humans, Aged, Surgical repair, business.industry, MORTALITY, fungi, Stent, ENDOVASCULAR REPAIR, Odds ratio, medicine.disease, Confidence interval, Surgery, body regions, business, SYSTEM, Aortic Aneurysm, Abdominal
Abstract

Contains fulltext : 226469.pdf (Publisher’s version ) (Open Access) BACKGROUND: Long-term secondary aortic reinterventions (SARs) can be a sign of (lack of) effectiveness of abdominal aortic aneurysm (AAA) surgery. This study provides insight into the national number of SARs after primary AAA repair by endovascular aneurysm repair (EVAR) or by open surgical repair in the Netherlands. METHODS: Observational study included all patients undergoing SAR between 2016 and 2017, registered in the compulsory Dutch Surgical Aneurysm Audit (DSAA). The DSAA started in 2013, SARs are registered from 2016. Characteristics of SAR and postoperative outcomes (mortality/complications) were analyzed, stratified by urgency of SAR. Data of SARs were merged with data of their preceded primary AAA repair, registered in the DSAA after January 2013. In these patients undergoing SAR, treatment characteristics of the preceded primary AAA repair were additionally described, with focus on differences between stent grafts. RESULTS: Between 2016 and 2017, 691 patients underwent SAR, this concerned 9.3% of all AAA procedures (infrarenal/juxtarenal/suprarenal) in the Netherlands (77% elective/11% acute symptomatic/12% ruptured). Endoleak (60%) was the most frequent indication for SAR. SARs were performed with EVAR in 66%. Postoperative mortalities after SAR were 3.4%, 11%, and 29% in elective, acute symptomatic, and ruptured patients, respectively. In 26% (n = 181) of the patients undergoing SAR their primary AAA repair was performed after January 2013 and data of primary and SAR procedures could be merged. In 93% (n = 136), primary AAA repair was EVAR. Endografts primarily used were nitinol/polyester (62%), nitinol/polytetrafluoroethylene (8%), endovascular sealing (21%), and others (9%), compared with their national market share of 76% (odds ratio [OR], 0.52; 95% confidence interval [CI], 0.38-0.71), 15% (OR, 0.50; CI, 0.29-0.89), 4.9% (OR, 5.04; CI, 3.44-7.38), and 4.1% (OR, 2.81; CI, 1.66-4.74), respectively. CONCLUSIONS: In the Netherlands, about one-tenth of the annual AAA procedures concerns an SAR. A quarter of this cohort had an SAR within 1-5 years after their primary AAA repair. Most SARs followed after primary EVAR procedures, in which an overrepresentation of endovascular sealing grafts was seen. Postoperative mortality after SAR is comparable with primary AAA repair.

Published
2020
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25. Deposition and erosion of silt-rich sediment-water mixtures

Author

te Slaa, S., Winterwerp, J.C., He, Qing, and Delft University of Technology

Abstract

From a granulometric point of view, sediment can be classified as sand, silt and clay. Silt is thereby defined as sediment with particle sizes equal to, or larger than 2 μm and smaller than 63 μm, with quartz or feldspar as base mineral. Note that quartz and feldspar particles can be smaller than 2 μm. To date, our knowledge on deposition and erosion processes of silt and siltrich sediment-water mixtures is small compared to their sandy or clayey counterparts, hampering our understanding of large-scale morphological behaviour of silt-dominated systems. The most important difference between clay and silt is that clay consists of clay minerals which have cohesive properties, and as a result, the erosion and deposition of clay beds is influenced by cohesion. The behaviour of cohesive sediment in suspension and in the bed is influenced by flocculation, permeability, effective stress and rheological properties which are related to electro-chemical properties of the base minerals. Silt particles do not have cohesive properties, but there are indications that their erosion behaviour can be apparently cohesive (Roberts et. al., 1998, Van Maren et al., 2009a). Permeability effects are likely to play a role in the behaviour of silt-water mixtures due to the small particles sizes of silt. Such effects result from a difference in timescales between the forcing and the response of the bed and result in apparently cohesive behaviour. Examples are the development of the bed strength with increasing hydrodynamic forcing or the dissipation of overpressures within a compacting silt bed. Such behaviour is characteristic for cohesive material and not for granular material such as silt, and is referred to as apparently cohesive behaviour. In existing literature, the physical processes that control the behaviour of silt are mostly described qualitatively, and silt-specific formulations for hindered settling, compaction and erosion do not exist. Through this thesis, quantitative insights into the physical processes controlling the behaviour of silt-water mixtures have been derived. The overall objectives of this thesis were to i) determine the hindered settling behaviour of silt-water mixtures, ii) determine the deposition and compaction behaviour of silt beds, and iii) determine the erosion behaviour of silt beds.

Published
2020
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26. A Composite Measure for Quality of Care in Patients with Symptomatic Carotid Stenosis Using Textbook Outcome

Author

Kuhrij, Laurien S., primary, Karthaus, Eleonora G., additional, Vahl, Anco C., additional, Willems, Martine C.M., additional, Elshof, Jan W., additional, de Borst, Gert J., additional, Van den Akker, P.J., additional, Akkersdijk, G.J., additional, Akkersdijk, G.P., additional, Akkersdijk, W.L., additional, van Andringa de Kempenaer, M.G., additional, Arts, C.H., additional, Avontuur, J.A., additional, Bakker, O.J., additional, Balm, R., additional, Barendregt, W.B., additional, Bekken, J.A., additional, Bender, M.H., additional, Bendermacher, B.L., additional, van den Berg, M., additional, Berger, P., additional, Beuk, R.J., additional, Blankensteijn, J.D., additional, Bleker, R.J., additional, Blok, J.J., additional, Bode, A.S., additional, Bodegom, M.E., additional, van der Bogt, K.E., additional, Boll, A.P., additional, Booster, M.H., additional, Borger van der Burg, B.L., additional, de Borst, G.J., additional, Bos-van Rossum, W.T., additional, Bosma, J., additional, Botman, J.M., additional, Bouwman, L.H., additional, Brehm, V., additional, de Bruijn, M.T., additional, de Bruin, J.L., additional, Brummel, P., additional, van Brussel, J.P., additional, Buijk, S.E., additional, Buijs, M.A., additional, Buimer, M.G., additional, Burger, D.H., additional, Buscher, H.C., additional, Cancrinus, E., additional, Castenmiller, P.H., additional, Cazander, G., additional, Coester, A.M., additional, Cuypers, P.H., additional, Daemen, J.H., additional, Dawson, I., additional, Dierikx, J.E., additional, Dijkstra, M.L., additional, Diks, J., additional, Dinkelman, M.K., additional, Dirven, M., additional, Dolmans, D.E., additional, van Doorn, R.C., additional, van Dortmont, L.M., additional, Drouven, J.W., additional, van der Eb, M.M., additional, Eefting, D., additional, van Eijck, G.J., additional, Elshof, J.W., additional, Elsman, B.H., additional, van der Elst, A., additional, van Engeland, M.I., additional, van Eps, R.G., additional, Faber, M.J., additional, de Fijter, W.M., additional, Fioole, B., additional, Fokkema, T.M., additional, Frans, F.A., additional, Fritschy, W.M., additional, Fung Kon Jin, P.H., additional, Geelkerken, R.H., additional, van Gent, W.B., additional, Glade, G.J., additional, Govaert, B., additional, Groenendijk, R.P., additional, de Groot, H.G., additional, van den Haak, R.F., additional, de Haan, E.F., additional, Hajer, G.F., additional, Hamming, J.F., additional, van Hattum, E.S., additional, Hazenberg, C.E., additional, Hedeman Joosten, P.P., additional, Helleman, J.N., additional, van der Hem, L.G., additional, Hendriks, J.M., additional, van Herwaarden, J.A., additional, Heyligers, J.M., additional, Hinnen, J.W., additional, Hissink, R.J., additional, Ho, G.H., additional, den Hoed, P.T., additional, Hoedt, M.T., additional, van Hoek, F., additional, Hoencamp, R., additional, Hoffmann, W.H., additional, Hogendoorn, W., additional, Hoksbergen, A.W., additional, Hollander, E.J., additional, Hommes, M., additional, Hopmans, C.J., additional, Huisman, L.C., additional, Hulsebos, R.G., additional, Huntjens, K.M., additional, Idu, M.M., additional, Jacobs, M.J., additional, van der Jagt, M.F., additional, Jansbeken, J.R., additional, Janssen, R.J., additional, Jiang, H.H., additional, de Jong, S.C., additional, Jongbloed-Winkel, T.A., additional, Jongkind, V., additional, Kapma, M.R., additional, Keller, B.P., additional, Khodadade Jahrome, A., additional, Kievit, J.K., additional, Klemm, P.L., additional, Klinkert, P., additional, Koedam, N.A., additional, Koelemaij, M.J., additional, Kolkert, J.L., additional, Koning, G.G., additional, Koning, O.H., additional, Konings, R., additional, Krasznai, A.G., additional, Krol, R.M., additional, Kropman, R.H., additional, Kruse, R.R., additional, van der Laan, L., additional, van der Laan, M.J., additional, van Laanen, J.H., additional, van Lammeren, G.W., additional, Lamprou, D.A., additional, Lardenoye, J.H., additional, Lauret, G.J., additional, Leenders, B.J., additional, Legemate, D.A., additional, Leijdekkers, V.J., additional, Lemson, M.S., additional, Lensvelt, M.M., additional, Lijkwan, M.A., additional, Lind, R.C., additional, van der Linden, F.T., additional, Liqui Lung, P.F., additional, Loos, M.J., additional, Loubert, M.C., additional, van de Luijtgaarden, K.M., additional, Mahmoud, D.E., additional, Manshanden, C.G., additional, Mattens, E.C., additional, Meerwaldt, R., additional, Mees, B.M., additional, von Meijenfeldt, G.C., additional, Menting, T.P., additional, Metz, R., additional, Minnee, R.C., additional, de Mol van Otterloo, J.C., additional, Molegraaf, M.J., additional, Montauban van Swijndregt, Y.C., additional, Morak, M.J., additional, van de Mortel, R.H., additional, Mulder, W., additional, Nagesser, S.K., additional, Naves, C.C., additional, Nederhoed, J.H., additional, Nevenzel-Putters, A.M., additional, de Nie, A.J., additional, Nieuwenhuis, D.H., additional, Nieuwenhuizen, J., additional, van Nieuwenhuizen, R.C., additional, Nio, D., additional, Noyez, V.J., additional, Oomen, A.P., additional, Oranen, B.I., additional, Oskam, J., additional, Palamba, H.W., additional, Peppelenbosch, A.G., additional, van Petersen, A.S., additional, Petri, B.J., additional, Pierie, M.E., additional, Ploeg, A.J., additional, Pol, R.A., additional, Ponfoort, E.D., additional, Post, I.C., additional, Poyck, P.P., additional, Prent, A., additional, ten Raa, S., additional, Raymakers, J.T., additional, Reichart, M., additional, Reichmann, B.L., additional, Reijnen, M.M., additional, de Ridder, J.A., additional, Rijbroek, A., additional, van Rijn, M.J., additional, de Roo, R.A., additional, Rouwet, E.V., additional, Saleem, B.R., additional, Salemans, P.B., additional, van Sambeek, M.R., additional, Samyn, M.G., additional, van ’t Sant, H.P., additional, van Schaik, J., additional, van Schaik, P.M., additional, Scharn, D.M., additional, Scheltinga, M.R., additional, Schepers, A., additional, Schlejen, P.M., additional, Schlosser, F.J., additional, Schol, F.P., additional, Scholtes, V.P., additional, Schouten, O., additional, Schreve, M.A., additional, Schurink, G.W., additional, Sikkink, C.J., additional, te Slaa, A., additional, Smeets, H.J., additional, Smeets, L., additional, Smeets, R.R., additional, de Smet, A.A., additional, Smit, P.C., additional, Smits, T.M., additional, Snoeijs, M.G., additional, Sondakh, A.O., additional, Speijers, M.J., additional, van der Steenhoven, T.J., additional, van Sterkenburg, S.M., additional, Stigter, D.A., additional, Stokmans, R.A., additional, Strating, R.P., additional, Stultiëns, G.N., additional, Sybrandy, J.E., additional, Teijink, J.A., additional, Telgenkamp, B.J., additional, Teraa, M., additional, Testroote, M.J., additional, Tha-In, T., additional, The, R.M., additional, Thijsse, W.J., additional, Thomassen, I., additional, Tielliu, I.F., additional, van Tongeren, R.B., additional, Toorop, R.J., additional, Tournoij, E., additional, Truijers, M., additional, Türkcan, K., additional, Tutein Nolthenius, R.P., additional, Ünlü, Ç., additional, Vaes, R.H., additional, Vafi, A.A., additional, Vahl, A.C., additional, Veen, E.J., additional, Veger, H.T., additional, Veldman, M.G., additional, Velthuis, S., additional, Verhagen, H.J., additional, Verhoeven, B.A., additional, Vermeulen, C.F., additional, Vermeulen, E.G., additional, Vierhout, B.P., additional, van der Vijver-Coppen, R.J., additional, Visser, M.J., additional, van der Vliet, J.A., additional, Vlijmen - van Keulen, C.J., additional, Voorhoeve, R., additional, van der Vorst, J.R., additional, Vos, A.W., additional, de Vos, B., additional, Vos, C.G., additional, Vos, G.A., additional, Voute, M.T., additional, Vriens, B.H., additional, Vriens, P.W., additional, de Vries, A.C., additional, de Vries, D.K., additional, de Vries, J.P., additional, de Vries, M., additional, van der Waal, C., additional, Waasdorp, E.J., additional, Wallis de Vries, B.M., additional, van Walraven, L.A., additional, van Wanroij, J.L., additional, Warlé, M.C., additional, van de Water, W., additional, van Weel, V., additional, van Well, A.M., additional, Welten, G.M., additional, Welten, R.J., additional, Wever, J.J., additional, Wiersema, A.M., additional, Wikkeling, O.R., additional, Willaert, W.I., additional, Wille, J., additional, Willems, M.C., additional, Willigendael, E.M., additional, Wilschut, E.D., additional, Wisselink, W., additional, Witte, M.E., additional, Wittens, C.H., additional, Wong, C.Y., additional, Wouda, R., additional, Yazar, O., additional, Yeung, K.K., additional, Zeebregts, C.J., additional, and van Zeeland, M.L., additional

Published
2020
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27. Nationwide study of the treatment of mycotic abdominal aortic aneurysms comparing open and endovascular repair in The Netherlands

Author

Dang, Quan, primary, Statius van Eps, Randolph G., additional, Wever, Jan J., additional, Veger, Hugo T.C., additional, Van den Akker, L.H., additional, Van den Akker, P.J., additional, Akkersdijk, G.J., additional, Akkersdijk, G.P., additional, Akkersdijk, W.L., additional, van Andringa de Kempenaer, M.G., additional, Arts, C.H., additional, Avontuur, J.A., additional, Baal, J.G., additional, Bakker, O.J., additional, Balm, R., additional, Barendregt, W.B., additional, Bender, M.H., additional, Bendermacher, B.L., additional, van den Berg, M., additional, Berger, P., additional, Beuk, R.J., additional, Blankensteijn, J.D., additional, Bleker, R.J., additional, Bockel, J.H., additional, Bodegom, M.E., additional, Bogt, K.E., additional, Boll, A.P., additional, Booster, M.H., additional, Borger van der Burg, B.L., additional, de Borst, G.J., additional, Bos- van Rossum, W.T., additional, Bosma, J., additional, Botman, J.M., additional, Bouwman, L.H., additional, Breek, J.C., additional, Brehm, V., additional, Brinckman, M.J., additional, van den Broek, T.H., additional, Brom, H.L., additional, de Bruijn, M.T., additional, de Bruin, J.L., additional, Brummel, P., additional, van Brussel, J.P., additional, Buijk, S.E., additional, Buimer, M.G., additional, Burger, D.H., additional, Buscher, H.C., additional, den Butter, G., additional, Cancrinus, E., additional, Castenmiller, P.H., additional, Cazander, G., additional, Coveliers, H.M., additional, Cuypers, P.H., additional, Daemen, J.H., additional, Dawson, I., additional, Derom, A.F., additional, Dijkema, A.R., additional, Diks, J., additional, Dinkelman, M.K., additional, Dirven, M., additional, Dolmans, D.E., additional, van Doorn, R.C., additional, van Dortmont, L.M., additional, van der Eb, M.M., additional, Eefting, D., additional, van Eijck, G.J., additional, Elshof, J.W., additional, Elsman, B.H., additional, van der Elst, A., additional, van Engeland, M.I., additional, van Eps, R.G., additional, Faber, M.J., additional, de Fijter, W.M., additional, Fioole, B., additional, Fritschy, W.M., additional, Geelkerken, R.H., additional, van Gent, W.B., additional, Glade, G.J., additional, Govaert, B., additional, Groenendijk, R.P., additional, de Groot, H.G., additional, van den Haak, R.F., additional, de Haan, E.F., additional, Hajer, G.F., additional, Hamming, J.F., additional, van Hattum, E.S., additional, Hazenberg, C.E., additional, Hedeman Joosten, P.P., additional, Helleman, J.N., additional, van der Hem, L.G., additional, Hendriks, J.M., additional, van Herwaarden, J.A., additional, Heyligers, J.M., additional, Hinnen, J.W., additional, Hissink, R.J., additional, Ho, G.H., additional, den Hoed, P.T., additional, Hoedt, M.T., additional, van Hoek, F., additional, Hoencamp, R., additional, Hoffmann, W.H., additional, Hoksbergen, A.W., additional, Hollander, E.J., additional, Huisman, L.C., additional, Hulsebos, R.G., additional, Huntjens, K.M., additional, Idu, M.M., additional, Jacobs, M.J., additional, van der Jagt, M.F., additional, Jansbeken, J.R., additional, Janssen, R.J., additional, Jiang, H.H., additional, de Jong, S.C., additional, Jongkind, V., additional, Kapma, M.R., additional, Keller, B.P., additional, Khodadade Jahrome, A., additional, Kievit, J.K., additional, Klemm, P.L., additional, Klinkert, P., additional, Knippenberg, B., additional, Koedam, N.A., additional, Koelemaij, M.J., additional, Kolkert, J.L., additional, Koning, G.G., additional, Koning, O.H., additional, Krasznai, A.G., additional, Krol, R.M., additional, Kropman, R.H., additional, Kruse, R.R., additional, van der Laan, L., additional, van der Laan, M.J., additional, van Laanen, J.H., additional, Lardenoye, J.H., additional, Lawson, J.A., additional, Legemate, D.A., additional, Leijdekkers, V.J., additional, Lemson, M.S., additional, Lensvelt, M.M., additional, Lijkwan, M.A., additional, Lind, R.C., additional, van der Linden, F.T., additional, Liqui Lung, P.F., additional, Loos, M.J., additional, Loubert, M.C., additional, Mahmoud, D.E., additional, Manshanden, C.G., additional, Mattens, E.C., additional, Meerwaldt, R., additional, Mees, B.M., additional, Metz, R., additional, Minnee, R.C., additional, de Mol van Otterloo, J.C., additional, Moll, F.L., additional, Montauban van Swijndregt, Y.C., additional, Morak, M.J., additional, van de Mortel, R.H., additional, Mulder, W., additional, Nagesser, S.K., additional, Naves, C.C., additional, Nederhoed, J.H., additional, Nevenzel-Putters, A.M., additional, de Nie, A.J., additional, Nieuwenhuis, D.H., additional, Nieuwenhuizen, J., additional, van Nieuwenhuizen, R.C., additional, Nio, D., additional, Oomen, A.P., additional, Oranen, B.I., additional, Oskam, J., additional, Palamba, H.W., additional, Peppelenbosch, A.G., additional, van Petersen, A.S., additional, Peterson, T.F., additional, Petri, B.J., additional, Pierie, M.E., additional, Ploeg, A.J., additional, Pol, R.A., additional, Ponfoort, E.D., additional, Poyck, P.P., additional, Prent, A., additional, ten Raa, S., additional, Raymakers, J.T., additional, Reichart, M., additional, Reichmann, B.L., additional, Reijnen, M.M., additional, Rijbroek, A., additional, van Rijn, M.J., additional, de Roo, R.A., additional, Rouwet, E.V., additional, Rupert, C.G., additional, Saleem, B.R., additional, van Sambeek, M.R., additional, Samyn, M.G., additional, van ’t Sant, H.P., additional, van Schaik, J., additional, van Schaik, P.M., additional, Scharn, D.M., additional, Scheltinga, M.R., additional, Schepers, A., additional, Schlejen, P.M., additional, Schlosser, F.J., additional, Schol, F.P., additional, Schouten, O., additional, Schreinemacher, M.H., additional, Schreve, M.A., additional, Schurink, G.W., additional, Sikkink, C.J., additional, te Slaa, A., additional, Smeets, H.J., additional, Smeets, L., additional, de Smet, A.A., additional, de Smit, P., additional, Smit, P.C., additional, Smits, T.M., additional, Snoeijs, M.G., additional, Sondakh, A.O., additional, van der Steenhoven, T.J., additional, van Sterkenburg, S.M., additional, Stigter, D.A., additional, Stigter, H., additional, Strating, R.P., additional, Stultiëns, G.N., additional, Sybrandy, J.E., additional, Teijink, J.A., additional, Telgenkamp, B.J., additional, Testroote, M.J., additional, The, R.M., additional, Thijsse, W.J., additional, Tielliu, I.F., additional, van Tongeren, R.B., additional, Toorop, R.J., additional, Tordoir, J.H., additional, Tournoij, E., additional, Truijers, M., additional, Türkcan, K., additional, Tutein Nolthenius, R.P., additional, Ünlü, Ç., additional, Vafi, A.A., additional, Vahl, A.C., additional, Veen, E.J., additional, Veger, H.T., additional, Veldman, M.G., additional, Verhagen, H.J., additional, Verhoeven, B.A., additional, Vermeulen, C.F., additional, Vermeulen, E.G., additional, Vierhout, B.P., additional, Visser, M.J., additional, van der Vliet, J.A., additional, Vlijmen - van Keulen, C.J., additional, Voesten, H.G., additional, Voorhoeve, R., additional, Vos, A.W., additional, de Vos, B., additional, Vos, G.A., additional, Vriens, B.H., additional, Vriens, P.W., additional, de Vries, A.C., additional, de Vries, J.P., additional, de Vries, M., additional, van der Waal, C., additional, Waasdorp, E.J., additional, Wallis de Vries, B.M., additional, van Walraven, L.A., additional, van Wanroij, J.L., additional, Warlé, M.C., additional, van Weel, V., additional, van Well, A.M., additional, Welten, G.M., additional, Welten, R.J., additional, Wever, J.J., additional, Wiersema, A.M., additional, Wikkeling, O.R., additional, Willaert, W.I., additional, Wille, J., additional, Willems, M.C., additional, Willigendael, E.M., additional, Wisselink, W., additional, Witte, M.E., additional, Wittens, C.H., additional, Wolf-de Jonge, I.C., additional, Yazar, O., additional, Zeebregts, C.J., additional, and van Zeeland, M.L., additional

Published
2020
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29. Treatment of High-grade Non-muscle-invasive Bladder Carcinoma by Standard Number and Dose of BCG Instillations Versus Reduced Number and Standard Dose of BCG Instillations: Results of the European Association of Urology Research Foundation Randomised Phase III Clinical Trial 'NIMBUS'

Author

Marc-Oliver Grimm, Antoine G. van der Heijden, Marc Colombel, Tim Muilwijk, Luis Martínez-Piñeiro, Marko M. Babjuk, Levent N. Türkeri, Joan Palou, Anup Patel, Anders S. Bjartell, Christien Caris, Raymond G. Schipper, Wim P.J. Witjes, Jörg Horstmann, Stefan Machtens, Eberhard Mumperow, Andreas Al Ghazal, Thomas Pulte, Michael Stephan-Odenthal, Georgios Gakis, Mario Kramer, Dirk Zaak, Bernd Schmitz-Dräger, Holger Schreier, Jan Lehmann, Torsten Werner, Jörg Klier, Jan Marin, Wolfgang Rulf, Eva Hellmis, Andreas Schneider, null Spiegelhalder, Manfred Wirth, Theodor Klotz, Henrik Suttmann, Michael Siebels, Gerd Rodemer, Robert Rudolph, Roger Zillmann, M. de Bruin, S. Bos, R. van Moorselaar, T de Reijke, J. Boormans, B. Wijsman, H.H.E. van Melick, E. van Boven, R.P. Meijer, A.G. van der Heijden, H. Vergunst, E. te Slaa, A.M. Leliveld-Kors, Alain Ruffion, Christian Pfister, Morgan Roupret, Jacques Irani, Gabriel Stoica, Siska Van Bruwaene, Filip Ameye, Harm Arentsen, Steven Joniau, Pastora Beardo, Urology, CCA - Cancer Treatment and quality of life, Academic Medical Center, APH - Personalized Medicine, and APH - Quality of Care

Subjects
medicine.medical_specialty, Urology, 030232 urology & nephrology, Non–muscle-invasive bladder cancer, 03 medical and health sciences, All institutes and research themes of the Radboud University Medical Center, 0302 clinical medicine, Bacillus Calmette-Guérin, Urological cancers Radboud Institute for Molecular Life Sciences [Radboudumc 15], medicine, Clinical endpoint, Reduced frequency, Bladder cancer, business.industry, Carcinoma in situ, Hazard ratio, medicine.disease, Confidence interval, Clinical trial, Instillation therapy, Regimen, Urological cancers Radboud Institute for Health Sciences [Radboudumc 15], 030220 oncology & carcinogenesis, Concomitant, business
Abstract

Background: Intravesical instillation of bacillus Calmette-Guerin (BCG) is an accepted strategy to prevent recurrence of non–muscle-invasive bladder cancer (NMIBC) but associated with significant toxicity. Objective: NIMBUS assessed whether a reduced number of standard-dose BCG instillations are noninferior to the standard number and dose in patients with high-grade NMIBC. Design, setting, and participants: A total of 345 patients from 51 sites were randomised between December 2013 and July 2019. We report results after a data review and safety analysis by the Independent Data Monitoring Committee based on the cut-off date of July 1, 2019. Intervention: The standard BCG schedule was 6 wk of induction followed by 3 wk of maintenance at 3, 6, and 12 mo (15 instillations). The reduced frequency BCG schedule was induction at wks 1, 2, and 6 followed by 2 wk (wks 1 and 3) of maintenance at 3, 6, and 12 mo (nine instillations). Outcome measurements and statistical analysis: The primary endpoint was time to first recurrence. Secondary endpoints included progression to ≥ T2 and toxicity. Results and limitations: In total, 170 patients were randomised to reduced frequency and 175 to standard BCG. Prognostic factors at initial resection were as follows: Ta/T1: 46/54%; primary/recurrent: 92/8%; single/multiple: 57/43%; and concomitant carcinoma in situ: 27%. After 12 mo of median follow-up, the intention-to-treat analysis showed a safety-relevant difference in recurrences between treatment arms: 46/170 (reduced frequency) versus 21/175 patients (standard). Additional safety analyses showed a hazard ratio of 0.40 with the upper part of the one-sided 97.5% confidence interval of 0.68, meeting a predefined stopping criterion for inferiority. Conclusions: The reduced frequency schedule was inferior to the standard schedule regarding the time to first recurrence. Further recruitment of patients was stopped immediately to avoid harm in the reduced frequency BCG arm. Patient summary: After surgical removal of the tumour, patients with high-grade non–muscle-invasive bladder cancer are treated with bacillus Calmette-Guerin to prevent recurrence and progression. This is associated with significant side effects. We report the results of a clinical trial showing a reduction in the number of instillations (from 15 to nine in total) being inferior to the standard protocol. From today's perspective, complete tumour resection and a standard number of instillations remain the standard of care. In high-grade non–muscle-invasive bladder cancer, a reduced frequency of bacillus Calmette-Guerin (BCG) instillations during induction and maintenance is inferior to the standard BCG schedule regarding time to first recurrence. Repeated transurethral resection followed by the standard BCG regimen, as recommended by the European Association of Urology guideline, remains the state of the art. (Less)

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2020
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30. Nationwide study of the treatment of mycotic abdominal aortic aneurysms comparing open and endovascular repair in The Netherlands

Author

Quan Dang, Randolph G. Statius van Eps, Jan J. Wever, Hugo T.C. Veger, L.H. Van den Akker, P.J. Van den Akker, G.J. Akkersdijk, G.P. Akkersdijk, W.L. Akkersdijk, M.G. van Andringa de Kempenaer, C.H. Arts, J.A. Avontuur, J.G. Baal, O.J. Bakker, R. Balm, W.B. Barendregt, M.H. Bender, B.L. Bendermacher, M. van den Berg, P. Berger, R.J. Beuk, J.D. Blankensteijn, R.J. Bleker, J.H. Bockel, M.E. Bodegom, K.E. Bogt, A.P. Boll, M.H. Booster, B.L. Borger van der Burg, G.J. de Borst, W.T. Bos- van Rossum, J. Bosma, J.M. Botman, L.H. Bouwman, J.C. Breek, V. Brehm, M.J. Brinckman, T.H. van den Broek, H.L. Brom, M.T. de Bruijn, J.L. de Bruin, P. Brummel, J.P. van Brussel, S.E. Buijk, M.G. Buimer, D.H. Burger, H.C. Buscher, G. den Butter, E. Cancrinus, P.H. Castenmiller, G. Cazander, H.M. Coveliers, P.H. Cuypers, J.H. Daemen, I. Dawson, A.F. Derom, A.R. Dijkema, J. Diks, M.K. Dinkelman, M. Dirven, D.E. Dolmans, R.C. van Doorn, L.M. van Dortmont, M.M. van der Eb, D. Eefting, G.J. van Eijck, J.W. Elshof, B.H. Elsman, A. van der Elst, M.I. van Engeland, R.G. van Eps, M.J. Faber, W.M. de Fijter, B. Fioole, W.M. Fritschy, R.H. Geelkerken, W.B. van Gent, G.J. Glade, B. Govaert, R.P. Groenendijk, H.G. de Groot, R.F. van den Haak, E.F. de Haan, G.F. Hajer, J.F. Hamming, E.S. van Hattum, C.E. Hazenberg, P.P. Hedeman Joosten, J.N. Helleman, L.G. van der Hem, J.M. Hendriks, J.A. van Herwaarden, J.M. Heyligers, J.W. Hinnen, R.J. Hissink, G.H. Ho, P.T. den Hoed, M.T. Hoedt, F. van Hoek, R. Hoencamp, W.H. Hoffmann, A.W. Hoksbergen, E.J. Hollander, L.C. Huisman, R.G. Hulsebos, K.M. Huntjens, M.M. Idu, M.J. Jacobs, M.F. van der Jagt, J.R. Jansbeken, R.J. Janssen, H.H. Jiang, S.C. de Jong, V. Jongkind, M.R. Kapma, B.P. Keller, A. Khodadade Jahrome, J.K. Kievit, P.L. Klemm, P. Klinkert, B. Knippenberg, N.A. Koedam, M.J. Koelemaij, J.L. Kolkert, G.G. Koning, O.H. Koning, A.G. Krasznai, R.M. Krol, R.H. Kropman, R.R. Kruse, L. van der Laan, M.J. van der Laan, J.H. van Laanen, J.H. Lardenoye, J.A. Lawson, D.A. Legemate, V.J. Leijdekkers, M.S. Lemson, M.M. Lensvelt, M.A. Lijkwan, R.C. Lind, F.T. van der Linden, P.F. Liqui Lung, M.J. Loos, M.C. Loubert, D.E. Mahmoud, C.G. Manshanden, E.C. Mattens, R. Meerwaldt, B.M. Mees, R. Metz, R.C. Minnee, J.C. de Mol van Otterloo, F.L. Moll, Y.C. Montauban van Swijndregt, M.J. Morak, R.H. van de Mortel, W. Mulder, S.K. Nagesser, C.C. Naves, J.H. Nederhoed, A.M. Nevenzel-Putters, A.J. de Nie, D.H. Nieuwenhuis, J. Nieuwenhuizen, R.C. van Nieuwenhuizen, D. Nio, A.P. Oomen, B.I. Oranen, J. Oskam, H.W. Palamba, A.G. Peppelenbosch, A.S. van Petersen, T.F. Peterson, B.J. Petri, M.E. Pierie, A.J. Ploeg, R.A. Pol, E.D. Ponfoort, P.P. Poyck, A. Prent, S. ten Raa, J.T. Raymakers, M. Reichart, B.L. Reichmann, M.M. Reijnen, A. Rijbroek, M.J. van Rijn, R.A. de Roo, E.V. Rouwet, C.G. Rupert, B.R. Saleem, M.R. van Sambeek, M.G. Samyn, H.P. van ’t Sant, J. van Schaik, P.M. van Schaik, D.M. Scharn, M.R. Scheltinga, A. Schepers, P.M. Schlejen, F.J. Schlosser, F.P. Schol, O. Schouten, M.H. Schreinemacher, M.A. Schreve, G.W. Schurink, C.J. Sikkink, A. te Slaa, H.J. Smeets, L. Smeets, A.A. de Smet, P. de Smit, P.C. Smit, T.M. Smits, M.G. Snoeijs, A.O. Sondakh, T.J. van der Steenhoven, S.M. van Sterkenburg, D.A. Stigter, H. Stigter, R.P. Strating, G.N. Stultiëns, J.E. Sybrandy, J.A. Teijink, B.J. Telgenkamp, M.J. Testroote, R.M. The, W.J. Thijsse, I.F. Tielliu, R.B. van Tongeren, R.J. Toorop, J.H. Tordoir, E. Tournoij, M. Truijers, K. Türkcan, R.P. Tutein Nolthenius, Ç. Ünlü, A.A. Vafi, A.C. Vahl, E.J. Veen, H.T. Veger, M.G. Veldman, H.J. Verhagen, B.A. Verhoeven, C.F. Vermeulen, E.G. Vermeulen, B.P. Vierhout, M.J. Visser, J.A. van der Vliet, C.J. Vlijmen - van Keulen, H.G. Voesten, R. Voorhoeve, A.W. Vos, B. de Vos, G.A. Vos, B.H. Vriens, P.W. Vriens, A.C. de Vries, J.P. de Vries, M. de Vries, C. van der Waal, E.J. Waasdorp, B.M. Wallis de Vries, L.A. van Walraven, J.L. van Wanroij, M.C. Warlé, V. van Weel, A.M. van Well, G.M. Welten, R.J. Welten, J.J. Wever, A.M. Wiersema, O.R. Wikkeling, W.I. Willaert, J. Wille, M.C. Willems, E.M. Willigendael, W. Wisselink, M.E. Witte, C.H. Wittens, I.C. Wolf-de Jonge, O. Yazar, C.J. Zeebregts, M.L. van Zeeland, RS: CAPHRI - R5 - Optimising Patient Care, Epidemiologie, Surgery, ACS - Atherosclerosis & ischemic syndromes, Pathology, VU University medical center, Pediatrics, Dermatology, ACS - Microcirculation, ACS - Diabetes & metabolism, and Multi-Modality Medical Imaging

Subjects
Male, Clinical audit, Time Factors, SURGERY, medicine.medical_treatment, Vascular damage Radboud Institute for Health Sciences [Radboudumc 16], Abdominal aneurysm, 030204 cardiovascular system & hematology, Endovascular aneurysm repair, Postoperative Complications, 0302 clinical medicine, Risk Factors, Registries, 030212 general & internal medicine, Mycotic, Netherlands, Medical Audit, OUTCOMES, Incidence, Incidence (epidemiology), Endovascular Procedures, Abdominal aorta, Clinical course, Infectious, Middle Aged, Anti-Bacterial Agents, Treatment Outcome, Female, Cardiology and Cardiovascular Medicine, medicine.medical_specialty, Patient Readmission, Risk Assessment, Drug Administration Schedule, Blood Vessel Prosthesis Implantation, 03 medical and health sciences, Aneurysm, THORACIC AORTA, medicine.artery, medicine, Humans, Aged, Retrospective Studies, ILIAC ARTERIES, business.industry, MORTALITY, Retrospective cohort study, medicine.disease, n/a OA procedure, Surgery, VOLUME, business, Aneurysm, Infected, Aortic Aneurysm, Abdominal
Abstract

Contains fulltext : 226470.pdf (Publisher’s version ) (Closed access) OBJECTIVE: Mycotic aneurysms of the abdominal aorta (MAAA) can be treated by open repair (OR) or endovascular aneurysm repair (EVAR). This nationwide study provides an overview of the situation of MAAA treatment in The Netherlands in 2016. METHODS: A retrospective cohort study was conducted with all centers that registered aortic abdominal aneurysms in the Dutch Surgical Aneurysm Audit in 2016. Questionnaires on 1-year outcomes were sent to all centers that treated patients with MAAA. The primary aim was to determine 30-day and 1-year mortality and morbidity of OR- and EVAR-treated patients. Morbidity was determined by the need for reoperations and the number of readmissions to the hospital. RESULTS: Twenty-six MAAA were detected in the Dutch Surgical Aneurysm Audit database of 2016, resulting in an incidence of 0.7% of all registered abdominal aortic aneurysms. The 30-day mortality for OR and EVAR treated patients was 1 in 13 and 0 in 13, respectively. Major and minor reinterventions within 30 days were needed for two (one OR and one EVAR) and two (one OR and one EVAR) patients, respectively. Two patients (15.4%) in the OR group and one patient (7.7%) in the EVAR group were readmitted to hospital within 30 days. In total, 1-year outcomes of 23 patients were available. In the OR group, one patient (9.1%) died in the first postoperative year. There was one major reintervention (removal of endoprosthesis and spiralvein reconstruction) in the EVAR group. Two patients (18.2%) treated with OR and two (16.7%) treated with EVAR required a minor reintervention. In both groups, four patients (OR, 36.4%; EVAR, 33.3%) were readmitted to hospital within 1 year postoperatively. CONCLUSIONS: Both OR- and EVAR-treated patients show acceptable clinical outcomes after 30 days and at the 1-year follow-up. Depending on the clinical course of the patient, EVAR may be considered in the management of this disease.

Published
2020
Full Text
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31. Patients with a Ruptured Abdominal Aortic Aneurysm Are Better Informed in Hospitals with an 'EVAR-preferred' Strategy: An Instrumental Variable Analysis of the Dutch Surgical Aneurysm Audit

Author

Eleonora G. Karthaus, Niki Lijftogt, Anco Vahl, Esmee M. van der Willik, Sonia Amodio, Erik W. van Zwet, Jaap F. Hamming, P.J. Van den Akker, G.J. Akkersdijk, G.P. Akkersdijk, W.L. Akkersdijk, M.G. van Andringa de Kempenaer, C.H. Arts, J.A. Avontuur, O.J. Bakker, R. Balm, W.B. Barendregt, J.A. Bekken, M.H. Bender, B.L. Bendermacher, M. van den Berg, P. Berger, R.J. Beuk, J.D. Blankensteijn, R.J. Bleker, J.J. Blok, A.S. Bode, M.E. Bodegom, K.E. van der Bogt, A.P. Boll, M.H. Booster, B.L. Borger van der Burg, G.J. de Borst, W.T. Bos- van Rossum, J. Bosma, J.M. Botman, L.H. Bouwman, V. Brehm, M.T. de Bruijn, J.L. de Bruin, P. Brummel, J.P. van Brussel, S.E. Buijk, M.A. Buijs, M.G. Buimer, D.H. Burger, H.C. Buscher, E. Cancrinus, P.H. Castenmiller, G. Cazander, A.M. Coester, P.H. Cuypers, J.H. Daemen, I. Dawson, J.E. Dierikx, M.L. Dijkstra, J. Diks, M.K. Dinkelman, M. Dirven, D.E. Dolmans, R.C. van Doorn, L.M. van Dortmont, J.W. Drouven, M.M. van der Eb, D. Eefting, G.J. van Eijck, J.W. Elshof, B.H. Elsman, A. van der Elst, M.I. van Engeland, R.G. van Eps, M.J. Faber, W.M. de Fijter, B. Fioole, T.M. Fokkema, F.A. Frans, W.M. Fritschy, P.H. Fung Kon Jin, R.H. Geelkerken, W.B. van Gent, G.J. Glade, B. Govaert, R.P. Groenendijk, H.G. de Groot, R.F. van den Haak, E.F. de Haan, G.F. Hajer, J.F. Hamming, E.S. van Hattum, C.E. Hazenberg, P.P. Hedeman Joosten, J.N. Helleman, L.G. van der Hem, J.M. Hendriks, J.A. van Herwaarden, J.M. Heyligers, J.W. Hinnen, R.J. Hissink, G.H. Ho, P.T. den Hoed, M.T. Hoedt, F. van Hoek, R. Hoencamp, W.H. Hoffmann, W. Hogendoorn, A.W. Hoksbergen, E.J. Hollander, M. Hommes, C.J. Hopmans, L.C. Huisman, R.G. Hulsebos, K.M. Huntjens, M.M. Idu, M.J. Jacobs, M.F. van der Jagt, J.R. Jansbeken, R.J. Janssen, H.H. Jiang, S.C. de Jong, T.A. Jongbloed-Winkel, V. Jongkind, M.R. Kapma, B.P. Keller, A. Khodadade Jahrome, J.K. Kievit, P.L. Klemm, P. Klinkert, N.A. Koedam, M.J. Koelemaij, J.L. Kolkert, G.G. Koning, O.H. Koning, R. Konings, A.G. Krasznai, R.M. Krol, R.H. Kropman, R.R. Kruse, L. van der Laan, M.J. van der Laan, J.H. van Laanen, G.W. van Lammeren, D.A. Lamprou, J.H. Lardenoye, G.J. Lauret, B.J. Leenders, D.A. Legemate, V.J. Leijdekkers, M.S. Lemson, M.M. Lensvelt, M.A. Lijkwan, R.C. Lind, F.T. van der Linden, P.F. Liqui Lung, M.J. Loos, M.C. Loubert, K.M. van de Luijtgaarden, D.E. Mahmoud, C.G. Manshanden, E.C. Mattens, R. Meerwaldt, B.M. Mees, G.C. von Meijenfeldt, T.P. Menting, R. Metz, R.C. Minnee, J.C. de Mol van Otterloo, M.J. Molegraaf, Y.C. Montauban van Swijndregt, M.J. Morak, R.H. van de Mortel, W. Mulder, S.K. Nagesser, C.C. Naves, J.H. Nederhoed, A.M. Nevenzel-Putters, A.J. de Nie, D.H. Nieuwenhuis, J. Nieuwenhuizen, R.C. van Nieuwenhuizen, D. Nio, V.J. Noyez, A.P. Oomen, B.I. Oranen, J. Oskam, H.W. Palamba, A.G. Peppelenbosch, A.S. van Petersen, B.J. Petri, M.E. Pierie, A.J. Ploeg, R.A. Pol, E.D. Ponfoort, I.C. Post, P.P. Poyck, A. Prent, S. ten Raa, J.T. Raymakers, M. Reichart, B.L. Reichmann, M.M. Reijnen, J.A. de Ridder, A. Rijbroek, M.J. van Rijn, R.A. de Roo, E.V. Rouwet, B.R. Saleem, P.B. Salemans, M.R. van Sambeek, M.G. Samyn, H.P. van ’t Sant, J. van Schaik, P.M. van Schaik, D.M. Scharn, M.R. Scheltinga, A. Schepers, P.M. Schlejen, F.J. Schlosser, F.P. Schol, V.P. Scholtes, O. Schouten, M.A. Schreve, G.W. Schurink, C.J. Sikkink, A. te Slaa, H.J. Smeets, L. Smeets, R.R. Smeets, A.A. de Smet, P.C. Smit, T.M. Smits, M.G. Snoeijs, A.O. Sondakh, M.J. Speijers, T.J. van der Steenhoven, S.M. van Sterkenburg, D.A. Stigter, R.A. Stokmans, R.P. Strating, G.N. Stultiëns, J.E. Sybrandy, J.A. Teijink, B.J. Telgenkamp, M. Teraa, M.J. Testroote, T. Tha-In, R.M. The, W.J. Thijsse, I. Thomassen, I.F. Tielliu, R.B. van Tongeren, R.J. Toorop, E. Tournoij, M. Truijers, K. Türkcan, R.P. Tutein Nolthenius, Ç. Ünlü, R.H. Vaes, A.A. Vafi, A.C. Vahl, E.J. Veen, H.T. Veger, M.G. Veldman, S. Velthuis, H.J. Verhagen, B.A. Verhoeven, C.F. Vermeulen, E.G. Vermeulen, B.P. Vierhout, R.J. van der Vijver-Coppen, M.J. Visser, J.A. van der Vliet, C.J. Vlijmen - van Keulen, R. Voorhoeve, J.R. van der Vorst, A.W. Vos, B. de Vos, C.G. Vos, G.A. Vos, M.T. Voute, B.H. Vriens, P.W. Vriens, A.C. de Vries, D.K. de Vries, J.P. de Vries, M. de Vries, C. van der Waal, E.J. Waasdorp, B.M. Wallis de Vries, L.A. van Walraven, J.L. van Wanroij, M.C. Warlé, W. van de Water, V. van Weel, A.M. van Well, G.M. Welten, R.J. Welten, J.J. Wever, A.M. Wiersema, O.R. Wikkeling, W.I. Willaert, J. Wille, M.C. Willems, E.M. Willigendael, E.D. Wilschut, W. Wisselink, M.E. Witte, C.H. Wittens, C.Y. Wong, R. Wouda, O. Yazar, K.K. Yeung, C.J. Zeebregts, M.L. van Zeeland, Multi-Modality Medical Imaging, Surgery, ACS - Atherosclerosis & ischemic syndromes, APH - Methodology, APH - Quality of Care, RS: CAPHRI - R5 - Optimising Patient Care, and Epidemiologie

Subjects
Male, Time Factors, medicine.medical_treatment, Vascular damage Radboud Institute for Health Sciences [Radboudumc 16], UT-Hybrid-D, 030204 cardiovascular system & hematology, Logistic regression, Endovascular aneurysm repair, 030218 nuclear medicine & medical imaging, law.invention, Postoperative Complications, 0302 clinical medicine, Randomized controlled trial, Risk Factors, law, 80 and over, Hospital Mortality, Prospective Studies, Prospective cohort study, Netherlands, Aged, 80 and over, OUTCOMES, Medical Audit, education.field_of_study, Endovascular Procedures, Confounding, Absolute risk reduction, General Medicine, EDITORS CHOICE, Aortic Aneurysm, Treatment Outcome, OPEN SURGERY, TRIAL, Female, Cardiology and Cardiovascular Medicine, medicine.medical_specialty, Aortic Rupture, Clinical Decision-Making, Population, Abdominal/diagnostic imaging, Postoperative Complications/mortality, Risk Assessment, Blood Vessel Prosthesis Implantation, 03 medical and health sciences, medicine, Humans, Endovascular Procedures/adverse effects, Blood Vessel Prosthesis Implantation/adverse effects, education, Aged, business.industry, MORTALITY, ENDOVASCULAR REPAIR, Surgery, Aortic Rupture/diagnostic imaging, Propensity score matching, business, Aortic Aneurysm, Abdominal/diagnostic imaging, Aortic Aneurysm, Abdominal
Abstract

Contains fulltext : 229914.pdf (Publisher’s version ) (Open Access) BACKGROUND: While several observational studies suggested a lower postoperative mortality after minimal invasive endovascular aneurysm repair (EVAR) in patients with a ruptured abdominal aortic aneurysm (RAAA) compared to conventional open surgical repair (OSR), landmark randomized controlled trials have not been able to prove the superiority of EVAR over OSR. Randomized controlled trials contain a selected, homogeneous population, influencing external validity. Observational studies are biased and adjustment of confounders can be incomplete. Instrumental variable (IV) analysis (pseudorandomization) may help to answer the question if patients with an RAAA have lower postoperative mortality when undergoing EVAR compared to OSR. METHODS: This is an observational study including all patients with an RAAA, registered in the Dutch Surgical Aneurysm Audit between 2013 and 2017. The risk difference (RD) in postoperative mortality (30 days/in-hospital) between patients undergoing EVAR and OSR was estimated, in which adjustment for confounding was performed in 3 ways: linear model adjusted for observed confounders, propensity score model (multivariable logistic regression analysis), and IV analysis (two-stage least square regression), adjusting for observed and unobserved confounders, with the variation in percentage of EVAR per hospital as the IV instrument. RESULTS: 2419 patients with an RAAA (1489 OSR and 930 EVAR) were included. Unadjusted postoperative mortality was 34.9% after OSR and 22.6% after EVAR (RD 12.3%, 95% CI 8.5-16%). The RD adjusted for observed confounders using linear regression analysis and propensity score analysis was, respectively, 12.3% (95% CI 9.6-16.7%) and 13.2% (95%CI 9.3-17.1%) in favor of EVAR. Using IV analysis, adjusting for observed and unobserved confounders, RD was 8.9% (95% CI -1.1-18.9%) in favor of EVAR. CONCLUSIONS: Adjusting for observed confounders, patients with an RAAA undergoing EVAR had a significant better survival than OSR in a consecutive large cohort. Adjustment for unobserved confounders resulted in a clinical relevant RD. An "EVAR preference strategy" in patients with an RAAA could result in lower postoperative mortality.

Published
2020

32. Deposition and erosion of silt-rich sediment-water mixtures

Author

te Slaa, S. (author) and te Slaa, S. (author)

Abstract

From a granulometric point of view, sediment can be classified as sand, silt and clay. Silt is thereby defined as sediment with particle sizes equal to, or larger than 2 μm and smaller than 63 μm, with quartz or feldspar as base mineral. Note that quartz and feldspar particles can be smaller than 2 μm. To date, our knowledge on deposition and erosion processes of silt and siltrich sediment-water mixtures is small compared to their sandy or clayey counterparts, hampering our understanding of large-scale morphological behaviour of silt-dominated systems. The most important difference between clay and silt is that clay consists of clay minerals which have cohesive properties, and as a result, the erosion and deposition of clay beds is influenced by cohesion. The behaviour of cohesive sediment in suspension and in the bed is influenced by flocculation, permeability, effective stress and rheological properties which are related to electro-chemical properties of the base minerals. Silt particles do not have cohesive properties, but there are indications that their erosion behaviour can be apparently cohesive (Roberts et. al., 1998, Van Maren et al., 2009a). Permeability effects are likely to play a role in the behaviour of silt-water mixtures due to the small particles sizes of silt. Such effects result from a difference in timescales between the forcing and the response of the bed and result in apparently cohesive behaviour. Examples are the development of the bed strength with increasing hydrodynamic forcing or the dissipation of overpressures within a compacting silt bed. Such behaviour is characteristic for cohesive material and not for granular material such as silt, and is referred to as apparently cohesive behaviour. In existing literature, the physical processes that control the behaviour of silt are mostly described qualitatively, and silt-specific formulations for hindered settling, compaction and erosion do not exist. Through this thesis, quantitative insights, Environmental Fluid Mechanics

Published
2020

34. Treatment of High-grade Non–muscle-invasive Bladder Carcinoma by Standard Number and Dose of BCG Instillations Versus Reduced Number and Standard Dose of BCG Instillations: Results of the European Association of Urology Research Foundation Randomised Phase III Clinical Trial “NIMBUS”

Author

MS Urologische Oncologie, Cancer, Urologie Medisch volwassenen, Grimm, Marc Oliver, van der Heijden, A. G., Colombel, Marc, Muilwijk, Tim, Martínez-Piñeiro, Luis, Babjuk, Marko M., Türkeri, Levent N., Palou, Joan, Patel, Anup, Bjartell, Anders S., Caris, Christien, Schipper, Raymond G., Witjes, Wim P.J., Horstmann, Jörg, Machtens, Stefan, Mumperow, Eberhard, Ghazal, Andreas Al, Pulte, Thomas, Stephan-Odenthal, Michael, Gakis, Georgios, Kramer, Mario, Zaak, Dirk, Schmitz-Dräger, Bernd, Schreier, Holger, Lehmann, Jan, Werner, Torsten, Klier, Jörg, Marin, Jan, Rulf, Wolfgang, Hellmis, Eva, Schneider, Andreas, Spiegelhalder, Wirth, Manfred, Klotz, Theodor, Suttmann, Henrik, Siebels, Michael, Rodemer, Gerd, Rudolph, Robert, Zillmann, Roger, de Bruin, M., Bos, S., van Moorselaar, R., de Reijke, T., Boormans, J., Wijsman, B., van Melick, H. H.E., van Boven, E., Meijer, R. P., Vergunst, H., te Slaa, E., Leliveld-Kors, A. M., Ruffion, Alain, Pfister, Christian, Roupret, Morgan, Irani, Jacques, Stoica, Gabriel, Van Bruwaene, Siska, Ameye, Filip, Arentsen, Harm, Joniau, Steven, Beardo, Pastora, MS Urologische Oncologie, Cancer, Urologie Medisch volwassenen, Grimm, Marc Oliver, van der Heijden, A. G., Colombel, Marc, Muilwijk, Tim, Martínez-Piñeiro, Luis, Babjuk, Marko M., Türkeri, Levent N., Palou, Joan, Patel, Anup, Bjartell, Anders S., Caris, Christien, Schipper, Raymond G., Witjes, Wim P.J., Horstmann, Jörg, Machtens, Stefan, Mumperow, Eberhard, Ghazal, Andreas Al, Pulte, Thomas, Stephan-Odenthal, Michael, Gakis, Georgios, Kramer, Mario, Zaak, Dirk, Schmitz-Dräger, Bernd, Schreier, Holger, Lehmann, Jan, Werner, Torsten, Klier, Jörg, Marin, Jan, Rulf, Wolfgang, Hellmis, Eva, Schneider, Andreas, Spiegelhalder, Wirth, Manfred, Klotz, Theodor, Suttmann, Henrik, Siebels, Michael, Rodemer, Gerd, Rudolph, Robert, Zillmann, Roger, de Bruin, M., Bos, S., van Moorselaar, R., de Reijke, T., Boormans, J., Wijsman, B., van Melick, H. H.E., van Boven, E., Meijer, R. P., Vergunst, H., te Slaa, E., Leliveld-Kors, A. M., Ruffion, Alain, Pfister, Christian, Roupret, Morgan, Irani, Jacques, Stoica, Gabriel, Van Bruwaene, Siska, Ameye, Filip, Arentsen, Harm, Joniau, Steven, and Beardo, Pastora

Published
2020

35. New generation grain contracts in corn and soybean commodity markets

Author

Zhiguang Wang, Matthew Elliott, Chad Te Slaa, and Lisa Elliott

Subjects
Bushel, Economics and Econometrics, business.industry, Sharpe ratio, food and beverages, Agricultural science, Agriculture, Value (economics), Economics, Portfolio, Production (economics), Hedge (finance), business, Commodity (Marxism), health care economics and organizations, Finance
Abstract

This research quantifies the risk reduction and price received when agricultural producers adopt new generation grain contracts (NGGCs) to hedge corn and soybean production. We explore the Accumulator, Average Price, Price Plus, Minimum Price, and Price Protection contracts and compare the performance measures of the average bushel price that would be received by the producer, the change in daily value of the portfolio and the Sharpe ratio. Specific to the Accumulator contract, we quantify the bushels accumulated during the contract period. We find that the Price Plus contracts performed best overall during the 2008–2017 period, obtaining the highest bushel price and the highest average Sharpe ratio for both corn and soybeans. Consequently, based on the average daily portfolio Sharpe ratio, the Price Plus contracts offered corn and soybean producers the best risk-adjusted return to hedge production during 2008–2017.

Published
2020
Full Text
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36. Failure to Rescue – a Closer Look at Mortality Rates Has No Added Value for Hospital Comparisons but Is Useful for Team Quality Assessment in Abdominal Aortic Aneurysm Surgery in The Netherlands

Author

Lijftogt, Niki, primary, Karthaus, Eleonora G., additional, Vahl, Anco, additional, van Zwet, Erik W., additional, van der Willik, Esmee M., additional, Tollenaar, Robertus A.E.M., additional, Hamming, Jaap F., additional, Wouters, Michel W.J.M., additional, Van den Akker, L.H., additional, Van den Akker, P.J., additional, Akkersdijk, G.J., additional, Akkersdijk, G.P., additional, Akkersdijk, W.L., additional, van Andringa de Kempenaer, M.G., additional, Arts, C.H., additional, Avontuur, J.A., additional, Baal, J.G., additional, Bakker, O.J., additional, Balm, R., additional, Barendregt, W.B., additional, Bender, M.H., additional, Bendermacher, B.L., additional, van den Berg, M., additional, Berger, P., additional, Beuk, R.J., additional, Blankensteijn, J.D., additional, Bleker, R.J., additional, Bockel, J.H., additional, Bodegom, M.E., additional, Bogt, K.E., additional, Boll, A.P., additional, Booster, M.H., additional, Borger van der Burg, B.L., additional, de Borst, G.J., additional, Bos-van Rossum, W.T., additional, Bosma, J., additional, Botman, J.M., additional, Bouwman, L.H., additional, Breek, J.C., additional, Brehm, V., additional, Brinckman, M.J., additional, van den Broek, T.H., additional, Brom, H.L., additional, de Bruijn, M.T., additional, de Bruin, J.L., additional, Brummel, P., additional, van Brussel, J.P., additional, Buijk, S.E., additional, Buimer, M.G., additional, Burger, D.H., additional, Buscher, H.C., additional, den Butter, G., additional, Cancrinus, E., additional, Castenmiller, P.H., additional, Cazander, G., additional, Coveliers, H.M., additional, Cuypers, P.H., additional, Daemen, J.H., additional, Dawson, I., additional, Derom, A.F., additional, Dijkema, A.R., additional, Diks, J., additional, Dinkelman, M.K., additional, Dirven, M., additional, Dolmans, D.E., additional, van Doorn, R.C., additional, van Dortmont, L.M., additional, van der Eb, M.M., additional, Eefting, D., additional, van Eijck, G.J., additional, Elshof, J.W., additional, Elsman, B.H., additional, van der Elst, A., additional, van Engeland, M.I., additional, van Eps, R.G., additional, Faber, M.J., additional, de Fijter, W.M., additional, Fioole, B., additional, Fritschy, W.M., additional, Geelkerken, R.H., additional, van Gent, W.B., additional, Glade, G.J., additional, Govaert, B., additional, Groenendijk, R.P., additional, de Groot, H.G., additional, van den Haak, R.F., additional, de Haan, E.F., additional, Hajer, G.F., additional, Hamming, J.F., additional, van Hattum, E.S., additional, Hazenberg, C.E., additional, Hedeman Joosten, P.P., additional, Helleman, J.N., additional, van der Hem, L.G., additional, Hendriks, J.M., additional, van Herwaarden, J.A., additional, Heyligers, J.M., additional, Hinnen, J.W., additional, Hissink, R.J., additional, Ho, G.H., additional, den Hoed, P.T., additional, Hoedt, M.T., additional, van Hoek, F., additional, Hoencamp, R., additional, Hoffmann, W.H., additional, Hoksbergen, A.W., additional, Hollander, E.J., additional, Huisman, L.C., additional, Hulsebos, R.G., additional, Huntjens, K.M., additional, Idu, M.M., additional, Jacobs, M.J., additional, van der Jagt, M.F., additional, Jansbeken, J.R., additional, Janssen, R.J., additional, Jiang, H.H., additional, de Jong, S.C., additional, Jongkind, V., additional, Kapma, M.R., additional, Keller, B.P., additional, Khodadade Jahrome, A., additional, Kievit, J.K., additional, Klemm, P.L., additional, Klinkert, P., additional, Knippenberg, B., additional, Koedam, N.A., additional, Koelemaij, M.J., additional, Kolkert, J.L., additional, Koning, G.G., additional, Koning, O.H., additional, Krasznai, A.G., additional, Krol, R.M., additional, Kropman, R.H., additional, Kruse, R.R., additional, van der Laan, L., additional, van der Laan, M.J., additional, van Laanen, J.H., additional, Lardenoye, J.H., additional, Lawson, J.A., additional, Legemate, D.A., additional, Leijdekkers, V.J., additional, Lemson, M.S., additional, Lensvelt, M.M., additional, Lijkwan, M.A., additional, Lind, R.C., additional, van der Linden, F.T., additional, Liqui Lung, P.F., additional, Loos, M.J., additional, Loubert, M.C., additional, Mahmoud, D.E., additional, Manshanden, C.G., additional, Mattens, E.C., additional, Meerwaldt, R., additional, Mees, B.M., additional, Metz, R., additional, Minnee, R.C., additional, de Mol van Otterloo, J.C., additional, Moll, F.L., additional, Montauban van Swijndregt, Y.C., additional, Morak, M.J., additional, van de Mortel, R.H., additional, Mulder, W., additional, Nagesser, S.K., additional, Naves, C.C., additional, Nederhoed, J.H., additional, Nevenzel-Putters, A.M., additional, de Nie, A.J., additional, Nieuwenhuis, D.H., additional, Nieuwenhuizen, J., additional, van Nieuwenhuizen, R.C., additional, Nio, D., additional, Oomen, A.P., additional, Oranen, B.I., additional, Oskam, J., additional, Palamba, H.W., additional, Peppelenbosch, A.G., additional, van Petersen, A.S., additional, Peterson, T.F., additional, Petri, B.J., additional, Pierie, M.E., additional, Ploeg, A.J., additional, Pol, R.A., additional, Ponfoort, E.D., additional, Poyck, P.P., additional, Prent, A., additional, ten Raa, S., additional, Raymakers, J.T., additional, Reichart, M., additional, Reichmann, B.L., additional, Reijnen, M.M., additional, Rijbroek, A., additional, van Rijn, M.J., additional, de Roo, R.A., additional, Rouwet, E.V., additional, Rupert, C.G., additional, Saleem, B.R., additional, van Sambeek, M.R., additional, Samyn, M.G., additional, van ’t Sant, H.P., additional, van Schaik, J., additional, van Schaik, P.M., additional, Scharn, D.M., additional, Scheltinga, M.R., additional, Schepers, A., additional, Schlejen, P.M., additional, Schlosser, F.J., additional, Schol, F.P., additional, Schouten, O., additional, Schreinemacher, M.H., additional, Schreve, M.A., additional, Schurink, G.W., additional, Sikkink, C.J., additional, Siroen, M.P., additional, te Slaa, A., additional, Smeets, H.J., additional, Smeets, L., additional, de Smet, A.A., additional, de Smit, P., additional, Smit, P.C., additional, Smits, T.M., additional, Snoeijs, M.G., additional, Sondakh, A.O., additional, van der Steenhoven, T.J., additional, van Sterkenburg, S.M., additional, Stigter, D.A., additional, Stigter, H., additional, Strating, R.P., additional, Stultiëns, G.N., additional, Sybrandy, J.E., additional, Teijink, J.A., additional, Telgenkamp, B.J., additional, Testroote, M.J., additional, The, R.M., additional, Thijsse, W.J., additional, Tielliu, I.F., additional, van Tongeren, R.B., additional, Toorop, R.J., additional, Tordoir, J.H., additional, Tournoij, E., additional, Truijers, M., additional, Türkcan, K., additional, Tutein Nolthenius, R.P., additional, Ünlü, Ç., additional, Vafi, A.A., additional, Vahl, A.C., additional, Veen, E.J., additional, Veger, H.T., additional, Veldman, M.G., additional, Verhagen, H.J., additional, Verhoeven, B.A., additional, Vermeulen, C.F., additional, Vermeulen, E.G., additional, Vierhout, B.P., additional, Visser, M.J., additional, van der Vliet, J.A., additional, Vlijmen-van Keulen, C.J., additional, Voesten, H.G., additional, Voorhoeve, R., additional, Vos, A.W., additional, de Vos, B., additional, Vos, G.A., additional, Vriens, B.H., additional, Vriens, P.W., additional, de Vries, A.C., additional, de Vries, J.P., additional, de Vries, M., additional, van der Waal, C., additional, Waasdorp, E.J., additional, Wallis de Vries, B.M., additional, van Walraven, L.A., additional, van Wanroij, J.L., additional, Warlé, M.C., additional, van Weel, V., additional, van Well, A.M., additional, Welten, G.M., additional, Welten, R.J., additional, Wever, J.J., additional, Wiersema, A.M., additional, Wikkeling, O.R., additional, Willaert, W.I., additional, Wille, J., additional, Willems, M.C., additional, Willigendael, E.M., additional, Wisselink, W., additional, Witte, M.E., additional, Wittens, C.H., additional, Wolf-de Jonge, I.C., additional, Yazar, O., additional, Zeebregts, C.J., additional, and van Zeeland, M.L., additional

Published
2018
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37. The Dutch Audit of Carotid Interventions: Transparency in Quality of Carotid Endarterectomy in Symptomatic Patients in the Netherlands

Author

Karthaus, Eleonora G., primary, Vahl, Anco, additional, Kuhrij, Laurien S., additional, Elsman, Bernard H.P., additional, Geelkerken, Robert H., additional, Wouters, Michel W.J.M., additional, Hamming, Jaap F., additional, de Borst, Gert J., additional, Van den Akker, L.H., additional, Van den Akker, P.J., additional, Akkersdijk, G.J., additional, Akkersdijk, G.P., additional, Akkersdijk, W.L., additional, van Andringa de Kempenaer, M.G., additional, Arts, C.H., additional, Avontuur, J.A., additional, Baal, J.G., additional, Bakker, O.J., additional, Balm, R., additional, Barendregt, W.B., additional, Bender, M.H., additional, Bendermacher, B.L., additional, van den Berg, M., additional, Berger, P., additional, Beuk, R.J., additional, Blankensteijn, J.D., additional, Bleker, R.J., additional, Bockel, J.H., additional, Bodegom, M.E., additional, Bogt, K.E., additional, Boll, A.P., additional, Booster, M.H., additional, Borger van der Burg, B.L., additional, de Borst, G.J., additional, Bos- van Rossum, W.T., additional, Bosma, J., additional, Botman, J.M., additional, Bouwman, L.H., additional, Breek, J.C., additional, Brehm, V., additional, Brinckman, M.J., additional, van den Broek, T.H., additional, Brom, H.L., additional, de Bruijn, M.T., additional, de Bruin, J.L., additional, Brummel, P., additional, van Brussel, J.P., additional, Buijk, S.E., additional, Buimer, M.G., additional, Burger, D.H., additional, Buscher, H.C., additional, den Butter, G., additional, Cancrinus, E., additional, Castenmiller, P.H., additional, Cazander, G., additional, Coveliers, H.M., additional, Cuypers, P.H., additional, Daemen, J.H., additional, Dawson, I., additional, Derom, A.F., additional, Dijkema, A.R., additional, Diks, J., additional, Dinkelman, M.K., additional, Dirven, M., additional, Dolmans, D.E., additional, van Doorn, R.C., additional, van Dortmont, L.M., additional, van der Eb, M.M., additional, Eefting, D., additional, van Eijck, G.J., additional, Elshof, J.W., additional, Elsman, B.H., additional, van der Elst, A., additional, van Engeland, M.I., additional, van Eps, R.G., additional, Faber, M.J., additional, de Fijter, W.M., additional, Fioole, B., additional, Fritschy, W.M., additional, Geelkerken, R.H., additional, van Gent, W.B., additional, Glade, G.J., additional, Govaert, B., additional, Groenendijk, R.P., additional, de Groot, H.G., additional, van den Haak, R.F., additional, de Haan, E.F., additional, Hajer, G.F., additional, Hamming, J.F., additional, van Hattum, E.S., additional, Hazenberg, C.E., additional, Hedeman Joosten, P.P., additional, Helleman, J.N., additional, van der Hem, L.G., additional, Hendriks, J.M., additional, van Herwaarden, J.A., additional, Heyligers, J.M., additional, Hinnen, J.W., additional, Hissink, R.J., additional, Ho, G.H., additional, den Hoed, P.T., additional, Hoedt, M.T., additional, van Hoek, F., additional, Hoencamp, R., additional, Hoffmann, W.H., additional, Hoksbergen, A.W., additional, Hollander, E.J., additional, Huisman, L.C., additional, Hulsebos, R.G., additional, Huntjens, K.M., additional, Idu, M.M., additional, Jacobs, M.J., additional, van der Jagt, M.F., additional, Jansbeken, J.R., additional, Janssen, R.J., additional, Jiang, H.H., additional, de Jong, S.C., additional, Jongkind, V., additional, Kapma, M.R., additional, Keller, B.P., additional, Khodadade Jahrome, A., additional, Kievit, J.K., additional, Klemm, P.L., additional, Klinkert, P., additional, Knippenberg, B., additional, Koedam, N.A., additional, Koelemaij, M.J., additional, Kolkert, J.L., additional, Koning, G.G., additional, Koning, O.H., additional, Krasznai, A.G., additional, Krol, R.M., additional, Kropman, R.H., additional, Kruse, R.R., additional, van der Laan, L., additional, van der Laan, M.J., additional, van Laanen, J.H., additional, Lardenoye, J.H., additional, Lawson, J.A., additional, Legemate, D.A., additional, Leijdekkers, V.J., additional, Lemson, M.S., additional, Lensvelt, M.M., additional, Lijkwan, M.A., additional, Lind, R.C., additional, van der Linden, F.T., additional, Liqui Lung, P.F., additional, Loos, M.J., additional, Loubert, M.C., additional, Mahmoud, D.E., additional, Manshanden, C.G., additional, Mattens, E.C., additional, Meerwaldt, R., additional, Mees, B.M., additional, Metz, R., additional, Minnee, R.C., additional, de Mol van Otterloo, J.C., additional, Moll, F.L., additional, Montauban van Swijndregt, Y.C., additional, Morak, M.J., additional, van de Mortel, R.H., additional, Mulder, W., additional, Nagesser, S.K., additional, Naves, C.C., additional, Nederhoed, J.H., additional, Nevenzel-Putters, A.M., additional, de Nie, A.J., additional, Nieuwenhuis, D.H., additional, Nieuwenhuizen, J., additional, van Nieuwenhuizen, R.C., additional, Nio, D., additional, Oomen, A.P., additional, Oranen, B.I., additional, Oskam, J., additional, Palamba, H.W., additional, Peppelenbosch, A.G., additional, van Petersen, A.S., additional, Peterson, T.F., additional, Petri, B.J., additional, Pierie, M.E., additional, Ploeg, A.J., additional, Pol, R.A., additional, Ponfoort, E.D., additional, Poyck, P.P., additional, Prent, A., additional, ten Raa, S., additional, Raymakers, J.T., additional, Reichart, M., additional, Reichmann, B.L., additional, Reijnen, M.M., additional, Rijbroek, A., additional, van Rijn, M.J., additional, de Roo, R.A., additional, Rouwet, E.V., additional, Rupert, C.G., additional, Saleem, B.R., additional, van Sambeek, M.R., additional, Samyn, M.G., additional, van 't Sant, H.P., additional, van Schaik, J., additional, van Schaik, P.M., additional, Scharn, D.M., additional, Scheltinga, M.R., additional, Schepers, A., additional, Schlejen, P.M., additional, Schlosser, F.J., additional, Schol, F.P., additional, Schouten, O., additional, Schreinemacher, M.H., additional, Schreve, M.A., additional, Schurink, G.W., additional, Sikkink, C.J., additional, Siroen, M.P., additional, te Slaa, A., additional, Smeets, H.J., additional, Smeets, L., additional, de Smet, A.A., additional, de Smit, P., additional, Smit, P.C., additional, Smits, T.M., additional, Snoeijs, M.G., additional, Sondakh, A.O., additional, van der Steenhoven, T.J., additional, van Sterkenburg, S.M., additional, Stigter, D.A., additional, Stigter, H., additional, Strating, R.P., additional, Stultiëns, D., additional, Sybrandy, J.E., additional, Teijink, J.A., additional, Telgenkamp, B.J., additional, Testroote, M.J., additional, The, R.M., additional, Thijsse, W.J., additional, Tielliu, I.F., additional, van Tongeren, R.B., additional, Toorop, R.J., additional, Tordoir, J.H., additional, Tournoij, E., additional, Truijers, M., additional, Türkcan, K., additional, Tutein Nolthenius, R.P., additional, Ünlü, Ç., additional, Vafi, A.A., additional, Vahl, A.C., additional, Veen, E.J., additional, Veger, H.T., additional, Veldman, M.G., additional, Verhagen, H.J., additional, Verhoeven, B.A., additional, Vermeulen, C.F., additional, Vermeulen, E.G., additional, Vierhout, B.P., additional, Visser, M.J., additional, van der Vliet, J.A., additional, Vlijmen - van Keulen, C.J., additional, Voesten, H.G., additional, Voorhoeve, R., additional, Vos, A.W., additional, de Vos, B., additional, Vos, G.A., additional, Vriens, B.H., additional, Vriens, P.W., additional, de Vries, A.C., additional, de Vries, J.P., additional, de Vries, M., additional, van der Waal, C., additional, Waasdorp, E.J., additional, Wallis de Vries, B.M., additional, van Walraven, L.A., additional, van Wanroij, J.L., additional, Warlé, M.C., additional, van Weel, V., additional, van Well, A.M., additional, Welten, G.M., additional, Welten, R.J., additional, Wever, J.J., additional, Wiersema, A.M., additional, Wikkeling, O.R., additional, Willaert, W.I., additional, Wille, J., additional, Willems, M.C., additional, Willigendael, E.M., additional, Wisselink, W., additional, Witte, M.E., additional, Wittens, C.H., additional, Wolf-de Jonge, I.C., additional, Yazar, O., additional, Zeebregts, C.J., additional, van Zeeland, M.L., additional, Elshof, Jan-Willem, additional, and Willems, Martine C., additional

Published
2018
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38. Novel, Moon and Mars, partial gravity simulation paradigms and their effects on the balance between cell growth and cell proliferation during early plant development

Author

Netherlands Organization for Scientific Research, Netherlands Space Office, Ministerio de Economía y Competitividad (España), Manzano, Aranzazu, Herranz, Raúl, den Toom, Leonardus, te Slaa, Sjoerd, Borst, Guus, Visser, Martijn, Medina, F. Javier, van Loon, Jack JWA, Netherlands Organization for Scientific Research, Netherlands Space Office, Ministerio de Economía y Competitividad (España), Manzano, Aranzazu, Herranz, Raúl, den Toom, Leonardus, te Slaa, Sjoerd, Borst, Guus, Visser, Martijn, Medina, F. Javier, and van Loon, Jack JWA

Abstract

Clinostats and Random Positioning Machine (RPM) are used to simulate microgravity, but, for space exploration, we need to know the response of living systems to fractional levels of gravity (partial gravity) as they exist on Moon and Mars. We have developed and compared two different paradigms to simulate partial gravity using the RPM, one by implementing a centrifuge on the RPM(RPMHW), the other by applying specific software protocols to driving the RPM motors (RPMSW). The effects of the simulated partialgravity were tested in plant root meristematic cells, a system with known response to real and simulated microgravity. Seeds of Arabidopsis thaliana were germinated under simulated Moon (0.17 g) and Mars (0.38 g) gravity. In parallel, seeds germinated under simulated microgravity (RPM), or at 1 g control conditions. Fixed root meristematic cells from 4-day grown seedlings were analyzed for cell proliferation rate and rate of ribosome biogenesis using morphometrical methods and molecular markers of the regulation of cell cycle and nucleolar activity. Cell proliferation appeared increased and cell growth was depleted under Moon gravity,compared with the 1g control. The effects were even higher at the Moon level than at simulated microgravity, indicating that meristematic competence (balance between cell growth and proliferation) is also affected at this gravity level. However, the results at the simulated Mars level were close to the 1g static control. This suggests that the threshold for sensing and responding to gravity alteration in the root would be at a level intermediate between Moon and Mars gravity. Both partial g simulation strategies seem valid and show similar results at Moon g levels, but further research is needed, in space flight and simulation facilities,especially around and beyond Mars g levels to better understand more precisely the differences and constrains in the use of these facilities for the space biology community.

Published
2018

43. Postoperative delirium in elderly after elective and acute colorectal surgery: A prospective cohort study

Author

L. van der Laan, J. H. Wijsman, Rogier M. P. H. Crolla, Jelle W. Raats, A. te Slaa, and Stijn L. Steunenberg

Subjects
Male, medicine.medical_specialty, Colorectal cancer, Frail Elderly, behavioral disciplines and activities, Postoperative Complications, Risk Factors, Internal medicine, mental disorders, medicine, Humans, Postoperative delirium, Prospective Studies, Prospective cohort study, Digestive System Surgical Procedures, Diverticulitis, Aged, Aged, 80 and over, business.industry, Incidence (epidemiology), Incidence, Age Factors, Delirium, General Medicine, Acute surgery, Length of Stay, medicine.disease, Colorectal surgery, nervous system diseases, Surgery, Elective Surgical Procedures, Female, medicine.symptom, Morbidity, business, Colorectal Neoplasms
Abstract

To assess the frailty and the incidence of delirium in elderly patients undergoing elective and acute colorectal surgery in correlation with morbidity and mortality.Patients aged 65 years and older having elective and acute colorectal surgery, between April 2013 and December 2013 were included in a prospective database. Patients diagnosed with a colorectal carcinoma or diverticulitis who were operated on were included. Factors that characterize frailty of patients were noted. The incidence rates of delirium after elective and acute surgery were recorded. Delirium was diagnosed using the Delirium Observation Screening Scale (DOSS). Preoperative evaluation, surgical outcome including morbidity, hospital stay and mortality were analyzed.Patients ≥ 65 years were included, 83 (75%) received elective and 28 (25%) acute surgery. The overall incidence of delirium was 21%, 18% for elective and 29% for patients having urgent surgery (p = 0.24). Patients with delirium were older than the non-delirious patients (median 82 years vs. 74 years; p0.001). Delirious patients showed higher incidence of adverse events. Hospital stay, mortality and discharge to a nursing home were significant higher in the delirious compared to the non-delirious group (p = 0.01; 0.01; 0.02 respectively).High incidence of delirium was found in both acute and elective colorectal surgery. Delirium was associated with adverse outcomes.

Published
2015

45. 1941: Het masker valt

Author

Somers, Erik, Kok, René, te Slaa, Robin, Somers, Erik, Kok, René, and te Slaa, Robin

Abstract

Na de Februaristaking laat de Duitse bezetter zijn masker vallen. In een redevoering in het Concertgebouw op 3 maart 1941 laat Seyss-Inquart er geen twijfel over bestaan: ‘Mit uns oder gegen uns, ein Dritte gibt es nicht mehr.’ Nederland moet ‘nazificeren’. De Nederlanders ondervinden in hun werk, vrije tijd en op straat steeds meer hoe het is om onder een dictatuur te leven. Duizenden verenigingen en stichtingen worden gedwongen opgeheven. Ook wordt het dagelijks leven schraal. Veel producten worden gerantsoeneerd, zoals aardappelen, chocola en sigaretten. De duimschroeven worden aangedraaid. De anti-Joodse maatregelen volgen elkaar in snel tempo op. Joden worden in de loop van 1941 op alle fronten buiten de samenleving gesloten. Maatschappelijk isolement als eerste stap richting deportatie. In het voorjaar van 1941 doen geruchten over een geallieerde invasie de ronde. Velen hopen op een spoedige Duitse nederlaag. In augustus wordt gezegd dat Hitler gevlucht is naar Japan en Goering in een gesticht is opgenomen. Dat blijkt niet waar te zijn. Wel valt nazi-Duitsland in juni de Sovjet-Unie binnen en wordt in december Pearl Harbour gebombardeerd door de Japanners, waardoor Amerika betrokken raakt bij de oorlog. Het dagelijks leven wordt ondertussen steeds minder alledaags. Rijk geïllustreerd met uniek beeldmateriaal uit de beeldbank van het NIOD 1941 is het tweede deel van een zesdelige serie over Nederland in de Tweede Wereldoorlog en de gevolgen daarvan voor het dagelijks leven. De serie wordt gerealiseerd in samenwerking met het NIOD, Instituut voor Oorlogs-, Holocaust- en Genocidestudies. Vanaf 2015, 75 jaar nadat Nederland werd bezet, verschijnt er jaarlijks een boek dat de gebeurtenissen van één oorlogsjaar nauwkeurig beschrijft. In maart 2015 verscheen het eerste deel: 1940, verwarring en aanpassing, over de Duitse inval, het verloop van de strijd, de capitulatie en de komst van de Duitse troepen en een Duits bestuur

Published
2016

46. On the hindered settling of silt-water mixtures

Author

Te Slaa, S., Van Maren, D.S., and Winterwerp, J.C.

Subjects
silt, settling velocity, settling experiment, settling column, sedimentation theory
Abstract

The sedimentation behavior of silt particles in the hindered settling regime has been considered. Therefore, laboratory experiments are carried in especially designed settling columns. Silt-water mixtures are prepared and allowed to settle at various initial concentrations. During the settling process, a continuous vertical concentration profile is measured. Settling velocities are obtained from these profiles and are compared with the widely used Richardson and Zaki (1954) expression. This comparison showed that the Richardson and Zaki expression underestimates the settling velocities for the finest silts at high concentrations. For the coarsest silt the Richardson and Zaki expression performed will with the measured data. We anticipate that this is the effect of the particle size on the apparent viscosity of the settling silt-water mixture.

Published
2012

47. Calibration Report Annular Flume: At the Faculty of Coastal Engineering, Zhejiang University

Author

Te Slaa, S.

Subjects
annular flume, cohesive sediment, endless flume, fluid mechanics laboratory
Abstract

Estuarine systems worldwide contain large quantities of fine (cohesive) sediment. Fate and transport of these sediments is to a large extent governed by erosion and deposition processes. Knowledge on the behaviour of these sediments is required for modeling purposes in order to predict impacts on morphology and environment as a result of e.g. engineering purposes. Physical laboratory experiments are strong instruments to obtain this knowledge under confined conditions. Ongoing research regarding the behavior of sediment from the Yangtze River Estuary is carried out in the framework of the Sino-Dutch cooperation project “Effects of Human Activities on Eco-Morphological processes”. Within this project the State Key Laboratory of Estuarine and Coastal Research (SKLEC) in Shanghai and Delft University of Technology (DUT) share a collaboration partnership. Up to now, sedimentation experiments with Yangtze Estuary sediment are carried out at SKLEC in order to understand its settling and consolidation behavior (Te Slaa et al., 2012). Erosion behaviour is another key process of which its understanding is derides. SKLEC however, doesn’t (yet) have the facilities to perform erosion experiments. Therefore, collaboration was agreed with the Ocean and Hydraulic Engineering Faculty of the Zhejiang University in Hangzhou. This faculty has the availability of an annular flume, which is a powerful tool in determining erosion rates of cohesive sediment. The flume however, has not been in operation for several years and data and knowledge about the flume characteristics is lacking. Therefore a (re-)calibration of this flume is done of which this document describes the procedure and subsequent results. Calibration is carried out with state of the art knowledge on annular flumes, obtain at DUT (Booij, 1994).

Published
2012

48. Quality of life in perspective to treatment of postoperative edema after peripheral bypass surgery

Author

G.H. Ho, D. E. J. G. J. Dolmans, Çiğdem Öztürk, Jolanda De Vries, Lyckle van der Laan, Paul G.H. Mulder, Alexander te Slaa, and Medical and Clinical Psychology

Subjects
Adult, Male, medicine.medical_specialty, Time Factors, medicine.medical_treatment, Intermittent pneumatic compression, Compression stockings, ComputingMilieux_LEGALASPECTSOFCOMPUTING, law.invention, Blood Vessel Prosthesis Implantation, Peripheral Arterial Disease, Randomized controlled trial, Quality of life, law, Edema, Surveys and Questionnaires, medicine, Humans, Hospitals, Teaching, Intermittent Pneumatic Compression Devices, Aged, Netherlands, Aged, 80 and over, Analysis of Variance, Chi-Square Distribution, business.industry, General Medicine, Vascular surgery, Middle Aged, humanities, Peripheral, Surgery, Treatment Outcome, Bypass surgery, Linear Models, Quality of Life, Female, Vascular Grafting, medicine.symptom, Cardiology and Cardiovascular Medicine, business, Stockings, Compression
Abstract

To examine the effects of peripheral bypass surgery on patients' quality of life (QoL) as well as to compare two treatment modalities to reduce postoperative edema with regard to patients' QoL.This was a randomized controlled trial set in the department of vascular surgery in a nonacademic teaching hospital. Ninety-three patients (mean age, 70 years; 33% Rutherford 5-6), enrolled between August 2006 and September 2009, who underwent peripheral bypass surgery (autologous 57, polytetrafluoroethylene 36). Patients were assigned to intermittent pneumatic compression (n = 46) or to compression stockings (n = 47). The main outcome measure was QoL, measured with the World Health Organization Quality of Life assessment instrument (short form: WHOQOL-BREF).QoL improved on the domain of Physical Health by 7.18 points (P0.001 [range, 0-100]) after 2 weeks and by 10.03 points (P0.001) after 3 months. Patients who received a polytetrafluoroethylene bypass scored 0.45 points (P = 0.0008 [range, 1-5]) lower at baseline on Global QoL than patients who received an autologous bypass. Type of bypass or edema treatment method did not affect the improvements. Edema did not correlate with QoL.Improvement in QoL on the domain Physical Health following femoropopliteal bypass surgery was found as soon as 2 weeks after surgery. Improvement in QoL domains was not influenced by the type of bypass reconstruction. No specific effects of edema on QoL were detected.

Published
2012

49. The prognosis following acute primary glenohumeral dislocation

Author

R. L. te Slaa, M. P. J. M. Wijffels, René K Marti, Ronald Brand, and Orthopedic Surgery and Sports Medicine

Subjects
medicine.medical_specialty, Prognostic factor, business.industry, Incidence (epidemiology), Retrospective cohort study, Recurrent dislocation, Rheumatology, Surgery, Internal medicine, Orthopedic surgery, medicine, Orthopedics and Sports Medicine, In patient, business, Greater Tuberosity
Abstract

We have studied 105 patients with 107 acute, primary, dislocations of the glenohumeral joint seen between January 1, 1991 and July 1, 1994. The mean time of follow-up was 71 months (46 to 91). In 34% the injury occurred during a sports activity and in 28% at home. The bias toward sport was even greater in patients less than 40 years of age, and in men. In patients older than 40 years of age, and in women, the dislocation occurred more often at home. The overall probability of recurrence within four years was 26%. Age was the most significant prognostic factor in recurrence which took place in 64% of patients less than 20 years of age and in 6% of those older than 40 years. Statistically, there was no difference between the rates of recurrence in patients who were active in sport and those who were not. The mean Rowe score for the whole group was 87 (15 to 100). Associated fractures were found in 20 patients (19%) and nerve injuries in 22 (21%). None of those in whom a fracture of the greater tuberosity was seen subsequently suffered a recurrent dislocation. At follow-up we found that 36 patients (34%) had not returned to their former employment but in only 2% was this owing to the injured shoulder.

Published
2004

50. Isolated Avulsion Fracture of the Lesser Tuberosity of the Humerus

Author

E. W. van Laarhoven, H. A. J. van Laarhoven, and R. L. te Slaa

Subjects
Adult, Male, medicine.medical_specialty, Joint Prosthesis, Adaptation, Biological, Biomedical Engineering, Teaching of Economics, Physical examination, Connective Tissue Cells (Non MeSH), Bone and Bones, Computer-Assisted, Musculoskeletal System Physiology (Non MeSH), Image Interpretation, Computer-Assisted, medicine, Humans, Displacement (orthopedic surgery), Humerus, Musculoskeletal Diseases, Lesser Tuberosity, Adaptation, Range of Motion, Articular, Image Interpretation, GeneralLiterature_REFERENCE(e.g.,dictionaries,encyclopedias,glossaries), Musculoskeletal System, medicine.diagnostic_test, Shoulder Joint, business.industry, Avulsion fracture, Middle Aged, Biological, medicine.disease, Surgery, Radiography, Orthopedics, medicine.anatomical_structure, Orthopedic surgery, Shoulder Fractures, Upper limb, Accidental Falls, Female, Econometric Modeling, Range of motion, business, Follow-Up Studies
Abstract

Six cases of isolated avulsions of the lesser tuberosity of the humerus were encountered within a short period of time. Although it seldom has been described in the literature, it might be a more common fracture than suspected. Physical examination revealed a painful shoulder with limited function in all six patients. In retrospect, all diagnoses could have been made on the primary plain roentgenograms. However, the fragment of the lesser tuberosity was easily misdiagnosed. An axillary view showed the fragment clearly in all cases. Computed tomography is useful for making an accurate diagnosis because it establishes the size and displacement of the fragment and determines additional injuries, such as a ruptured biceps tendon. Five patients with displacement of the lesser tuberosity were operated on after several weeks or months. The lesser tuberosity was reattached in all cases. After 6 months three patients had slight impairment of elevation and external rotation, and one of them suffered from pain during movements of the arm. The patient with no fracture displacement was treated conservatively with a good result. In conclusion, we recommended an axillary roentgenogram as part of the posttrauma radiologic series of the shoulder. A nondisplaced avulsion fracture of the lesser tuberosity of the humerus can be treated conservatively. We recommend reattachment of displaced fractures.

Published
1995
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