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26 results on '"Slomp, J."'

1. Harmonizing light transmission aggregometry in the Netherlands by implementation of the SSC-ISTH guideline

Author

Munnix, I.C.A., Van Oerle, R., Verhezen, P., Kuijper, P., Hackeng, C.M., Hopman-Kerkhoff, H.I.J., Hudig, F., van de Kerkhof, D., Leyte, A., de Maat, M.P.M., Oude Elferink, R.F.M., Ruinemans-Koerts, J., Schoorl, M., Slomp, J., Soons, H., Stroobants, A., van Wijk, E., Henskens, Y.M.C., Munnix, I.C.A., Van Oerle, R., Verhezen, P., Kuijper, P., Hackeng, C.M., Hopman-Kerkhoff, H.I.J., Hudig, F., van de Kerkhof, D., Leyte, A., de Maat, M.P.M., Oude Elferink, R.F.M., Ruinemans-Koerts, J., Schoorl, M., Slomp, J., Soons, H., Stroobants, A., van Wijk, E., and Henskens, Y.M.C.

Abstract

Light transmission aggregometry (LTA) is considered the gold standard method for evaluation of platelet function. However, there are a lot of variation in protocols (pre-analytical procedures and agonist concentrations) and results. The aim of our study was to establish a national LTA protocol, to investigate the effect of standardization and to define national reference values for LTA. The SSC guideline was used as base for a national procedure. Almost all recommendations of the SSC were followed e.g. no adjustment of PRP, citrate concentration of 109 mM, 21 needle gauge, fasting, resting time for whole blood and PRP, centrifugation time, speed and agonists concentrations. LTA of healthy volunteers was measured in a total of 16 hospitals with 5 hospitals before and after standardization. Results of more than 120 healthy volunteers (maximum aggregation %) were collected, with participating laboratories using 4 different analyzers with different reagents. Use of low agonist concentrations showed high variation before and after standardization, with the exception of collagen. For most high agonist concentrations (ADP, collagen, ristocetin, epinephrine and arachidonic acid) variability in healthy subjects decreased after standardization. We can conclude that a standardized Dutch protocol for LTA, based on the SSC guideline, does not result in smaller variability in healthy volunteers for all agonist concentrations.

Published
2021

2. Harmonizing light transmission aggregometry in the Netherlands by implementation of the SSC-ISTH guideline

Author

Munnix, I. C.A., Van Oerle, R., Verhezen, P., Kuijper, P., Hackeng, C. M., Hopman-Kerkhoff, H. I.J., Hudig, F., Van De Kerkhof, D., Leyte, A., De Maat, M. P.M., Oude Elferink, R. F.M., Ruinemans-Koerts, J., Schoorl, M., Slomp, J., Soons, H., Stroobants, A., Van Wijk, E., Henskens, Y. M.C., Munnix, I. C.A., Van Oerle, R., Verhezen, P., Kuijper, P., Hackeng, C. M., Hopman-Kerkhoff, H. I.J., Hudig, F., Van De Kerkhof, D., Leyte, A., De Maat, M. P.M., Oude Elferink, R. F.M., Ruinemans-Koerts, J., Schoorl, M., Slomp, J., Soons, H., Stroobants, A., Van Wijk, E., and Henskens, Y. M.C.

Abstract

Light transmission aggregometry (LTA) is considered the gold standard method for evaluation of platelet function. However, there are a lot of variation in protocols (pre-analytical procedures and agonist concentrations) and results. The aim of our study was to establish a national LTA protocol, to investigate the effect of standardization and to define national reference values for LTA. The SSC guideline was used as base for a national procedure. Almost all recommendations of the SSC were followed e.g. no adjustment of PRP, citrate concentration of 109 mM, 21 needle gauge, fasting, resting time for whole blood and PRP, centrifugation time, speed and agonists concentrations. LTA of healthy volunteers was measured in a total of 16 hospitals with 5 hospitals before and after standardization. Results of more than 120 healthy volunteers (maximum aggregation %) were collected, with participating laboratories using 4 different analyzers with different reagents. Use of low agonist concentrations showed high variation before and after standardization, with the exception of collagen. For most high agonist concentrations (ADP, collagen, ristocetin, epinephrine and arachidonic acid) variability in healthy subjects decreased after standardization. We can conclude that a standardized Dutch protocol for LTA, based on the SSC guideline, does not result in smaller variability in healthy volunteers for all agonist concentrations.

Published
2021

3. Harmonizing light transmission aggregometry in the Netherlands by implementation of the SSC-ISTH guideline

Author

Munnix, I.C.A., Van Oerle, R., Verhezen, P., Kuijper, P., Hackeng, C.M., Hopman-Kerkhoff, H.I.J., Hudig, F., van de Kerkhof, D., Leyte, A., de Maat, M.P.M., Oude Elferink, R.F.M., Ruinemans-Koerts, J., Schoorl, M., Slomp, J., Soons, H., Stroobants, A., van Wijk, E., Henskens, Y.M.C., Munnix, I.C.A., Van Oerle, R., Verhezen, P., Kuijper, P., Hackeng, C.M., Hopman-Kerkhoff, H.I.J., Hudig, F., van de Kerkhof, D., Leyte, A., de Maat, M.P.M., Oude Elferink, R.F.M., Ruinemans-Koerts, J., Schoorl, M., Slomp, J., Soons, H., Stroobants, A., van Wijk, E., and Henskens, Y.M.C.

Abstract

Light transmission aggregometry (LTA) is considered the gold standard method for evaluation of platelet function. However, there are a lot of variation in protocols (pre-analytical procedures and agonist concentrations) and results. The aim of our study was to establish a national LTA protocol, to investigate the effect of standardization and to define national reference values for LTA. The SSC guideline was used as base for a national procedure. Almost all recommendations of the SSC were followed e.g. no adjustment of PRP, citrate concentration of 109 mM, 21 needle gauge, fasting, resting time for whole blood and PRP, centrifugation time, speed and agonists concentrations. LTA of healthy volunteers was measured in a total of 16 hospitals with 5 hospitals before and after standardization. Results of more than 120 healthy volunteers (maximum aggregation %) were collected, with participating laboratories using 4 different analyzers with different reagents. Use of low agonist concentrations showed high variation before and after standardization, with the exception of collagen. For most high agonist concentrations (ADP, collagen, ristocetin, epinephrine and arachidonic acid) variability in healthy subjects decreased after standardization. We can conclude that a standardized Dutch protocol for LTA, based on the SSC guideline, does not result in smaller variability in healthy volunteers for all agonist concentrations.

Published
2021

4. Applicability and reproducibility of acute myeloid leukaemia stem cell assessment in a multi-centre setting

Author

Hanekamp, D. (Diana), Snel, A.N. (Alexander), Kelder, A. (Angèle), Scholten, W.J. (Willemijn), Khan, N. (Naeem), Metzner, M. (Marlen), Irno-Consalvo, M. (Maria), Sugita, M. (Mayumi), Jong, A.X. (Anja) de, Oude Alink, S. (Sjoerd), Eidhof, H. (Harrie), Wilhelm, M. (Miriam), Feuring-Buske, M. (Michaela), Slomp, J. (Jennichjen), Velden, V.H.J. (Vincent) van der, Sonneveld, E. (Edwin), Guzman, M. (Monica), Roboz, G.J. (Gail J.), Buccisano, F. (Francesco), Vyas, P. (Paresh), Freeman, S. (Sylvie), Bachas, C. (Costa), Ossenkoppele, G.J. (Gert), Schuurhuis, G.J. (Gerrit Jan), Cloos, J. (Jacqueline), Hanekamp, D. (Diana), Snel, A.N. (Alexander), Kelder, A. (Angèle), Scholten, W.J. (Willemijn), Khan, N. (Naeem), Metzner, M. (Marlen), Irno-Consalvo, M. (Maria), Sugita, M. (Mayumi), Jong, A.X. (Anja) de, Oude Alink, S. (Sjoerd), Eidhof, H. (Harrie), Wilhelm, M. (Miriam), Feuring-Buske, M. (Michaela), Slomp, J. (Jennichjen), Velden, V.H.J. (Vincent) van der, Sonneveld, E. (Edwin), Guzman, M. (Monica), Roboz, G.J. (Gail J.), Buccisano, F. (Francesco), Vyas, P. (Paresh), Freeman, S. (Sylvie), Bachas, C. (Costa), Ossenkoppele, G.J. (Gert), Schuurhuis, G.J. (Gerrit Jan), and Cloos, J. (Jacqueline)

Abstract

Leukaemic stem cells (LSC) have been experimentally defined as the leukaemia-propagating population and are thought to be the cellular reservoir of relapse in acute myeloid leukaemia (AML). Therefore, LSC measurements are warranted to facilitate accurate risk stratification. Previously, we published the composition of a one-tube flow cytometric assay, characterised by the presence of 13 important membrane markers for LSC detection.

Published
2020
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5. Applicability and reproducibility of acute myeloid leukaemia stem cell assessment in a multi-centre setting

Author

Hanekamp, D, Snel, A, Kelder, A, Scholten, WJ, Khan, NM, Metzner, M, Irno-Consalvo, M, Sugita, M, Jong, A, Oude Alink, Sjoerd, Eidhof, H, Wilhelm, MJ, Feuring-Buske, M, Slomp, J, van der Velden, Vincent, Sonneveld, EDJA, Guzman, MG, Roboz, GJ, Buccisano, F, Vyas, P, Freeman, SH, Bachas, C, Ossenkoppele, GL, Schuurhuis, GJ, Cloos, J, Hanekamp, D, Snel, A, Kelder, A, Scholten, WJ, Khan, NM, Metzner, M, Irno-Consalvo, M, Sugita, M, Jong, A, Oude Alink, Sjoerd, Eidhof, H, Wilhelm, MJ, Feuring-Buske, M, Slomp, J, van der Velden, Vincent, Sonneveld, EDJA, Guzman, MG, Roboz, GJ, Buccisano, F, Vyas, P, Freeman, SH, Bachas, C, Ossenkoppele, GL, Schuurhuis, GJ, and Cloos, J

Published
2020

8. Clinical characteristics of women captured by extending the definition of severe postpartum haemorrhage with 'refractoriness to treatment': a cohort study

Author

Henriquez, D., Gillissen, A., Smith, S.M., Cramer, R.A., van den Akker, T., Zwart, J.J. (Joost), van Roosmalen, J.J., Bloemenkamp, KW, Bom, J.G., Adriaanse, H.J., van den Akker, E.S.A., Baas, M.I., Bank, C.M.C., Beek, E. van, de Boer, B.A.G., Boer, K. (Karin), van der Borden, D.M.R., Bremer, H.A. (Henk), Brons, J.T.J., Burggraaff, J.M. (Jan), Ceelie, H., Chon, H., Cikot, J.L.M., Delemarre, F.M.C., Diris, J.H.C., Doesburg-van Kleffens, M., van Dooren, I.M.A., van Duijnhoven, J.L.P., van Dunn, F.M., Duvekot, J.J. (Hans), Engbers, P., van Hulst, M.J.W., Feitsma, H., Fouraux, M.A., Franssen, MT, Frasa, M.A.M., van Gammeren, A.J., Gemund, N. (Nicolette) van, van der Graaf, F., Groot, C.J.M., Hackeng, C.M. (Christian), Ham, D.P. (David) van der, Hanssen, M., Hasaart, T.H.M. (Tom), Hendriks, H.A., Henskens, Y.M.C., Hermsen, B.B.J., Hogenboom, S., Hooker, A., Hudig, F, Huijssoon, A.G. (Annemarie), Huisjes, A.J.M. (Anjoke), Jonker, N., Kabel, P.J., van Kampen, C., de Keijzer, M.H., van de Kerkhof, D.H., Keuren, JFW, Kleiverda, G., Klinkspoor, J.H., Koehorst, S.G.A., Kok, M.O. (Maarten), Kok, R.D., Kok, J.B. (Jacques) de, Koops, A., Kortlandt, W. (Wouter), Langenveld, J. (J.), Leers, MPG, Leyte, A. (Anja), de Mare, A., Martens, G.D.M., Meekers, J.H., Meir, C.A. (Claudia) van, Metz, G.C.H. (Godfried), Michielse, E., Mostert, L.J., Bijvank, S., Oostenveld, E., Osmanovic, N., Oudijk, M.A. (Martijn), Mirani-Oostdijk, C.P., van Pampus, E. C. M., Papatsonis, D.N.M. (Dimitri), Peters, R.H.M., Ponjee, G.A.E. (Gabriëlle), Pontesilli, M., Porath, M. (Martina), Post, M.S., Pouwels, J.G.J., Prinzen, L., Roelofsen, J.M.T., Rondeel, J.J.M., Salm, P.C.M. (Paulien) van der, Scheepers, H.C.J. (Hubertina), Schippers, D.H. (Daniela), Schuitemaker, N.W.E. (Nico), Sikkema, J.M. (J. Marko), Slomp, J. (Jennita), Smit, J.W.A. (Jan), Snuif-de Lange, Y.S., van der Stappen, J.W.J., Steures, P. (Pieternel), Tax, G.H.M., Treskes, M., Ulenkate, H., van Unnik, G.A., van der Veen, B.S., Verhagen, T.E.M., Versendaal, J. (Johan), Visschers, B., Visser, O. (Oane), de Visser, H., De Vooght, KMK, de Vries, M.J., Waard, H. (Harm) de, Weerkamp, F. (Floor), Weinans, M.J.N. (Martin), de Wet, H., Wijnen, M. (Marit), Wijngaarden, W.J. (Wim) van, de Wit, A.C., Woiski, M.D. (Mallory), TeMp, O.H.S.G., Henriquez, D., Gillissen, A., Smith, S.M., Cramer, R.A., van den Akker, T., Zwart, J.J. (Joost), van Roosmalen, J.J., Bloemenkamp, KW, Bom, J.G., Adriaanse, H.J., van den Akker, E.S.A., Baas, M.I., Bank, C.M.C., Beek, E. van, de Boer, B.A.G., Boer, K. (Karin), van der Borden, D.M.R., Bremer, H.A. (Henk), Brons, J.T.J., Burggraaff, J.M. (Jan), Ceelie, H., Chon, H., Cikot, J.L.M., Delemarre, F.M.C., Diris, J.H.C., Doesburg-van Kleffens, M., van Dooren, I.M.A., van Duijnhoven, J.L.P., van Dunn, F.M., Duvekot, J.J. (Hans), Engbers, P., van Hulst, M.J.W., Feitsma, H., Fouraux, M.A., Franssen, MT, Frasa, M.A.M., van Gammeren, A.J., Gemund, N. (Nicolette) van, van der Graaf, F., Groot, C.J.M., Hackeng, C.M. (Christian), Ham, D.P. (David) van der, Hanssen, M., Hasaart, T.H.M. (Tom), Hendriks, H.A., Henskens, Y.M.C., Hermsen, B.B.J., Hogenboom, S., Hooker, A., Hudig, F, Huijssoon, A.G. (Annemarie), Huisjes, A.J.M. (Anjoke), Jonker, N., Kabel, P.J., van Kampen, C., de Keijzer, M.H., van de Kerkhof, D.H., Keuren, JFW, Kleiverda, G., Klinkspoor, J.H., Koehorst, S.G.A., Kok, M.O. (Maarten), Kok, R.D., Kok, J.B. (Jacques) de, Koops, A., Kortlandt, W. (Wouter), Langenveld, J. (J.), Leers, MPG, Leyte, A. (Anja), de Mare, A., Martens, G.D.M., Meekers, J.H., Meir, C.A. (Claudia) van, Metz, G.C.H. (Godfried), Michielse, E., Mostert, L.J., Bijvank, S., Oostenveld, E., Osmanovic, N., Oudijk, M.A. (Martijn), Mirani-Oostdijk, C.P., van Pampus, E. C. M., Papatsonis, D.N.M. (Dimitri), Peters, R.H.M., Ponjee, G.A.E. (Gabriëlle), Pontesilli, M., Porath, M. (Martina), Post, M.S., Pouwels, J.G.J., Prinzen, L., Roelofsen, J.M.T., Rondeel, J.J.M., Salm, P.C.M. (Paulien) van der, Scheepers, H.C.J. (Hubertina), Schippers, D.H. (Daniela), Schuitemaker, N.W.E. (Nico), Sikkema, J.M. (J. Marko), Slomp, J. (Jennita), Smit, J.W.A. (Jan), Snuif-de Lange, Y.S., van der Stappen, J.W.J., Steures, P. (Pieternel), Tax, G.H.M., Treskes, M., Ulenkate, H., van Unnik, G.A., van der Veen, B.S., Verhagen, T.E.M., Versendaal, J. (Johan), Visschers, B., Visser, O. (Oane), de Visser, H., De Vooght, KMK, de Vries, M.J., Waard, H. (Harm) de, Weerkamp, F. (Floor), Weinans, M.J.N. (Martin), de Wet, H., Wijnen, M. (Marit), Wijngaarden, W.J. (Wim) van, de Wit, A.C., Woiski, M.D. (Mallory), and TeMp, O.H.S.G.

Abstract

Background: The absence of a uniform and clinically relevant definition of severe postpartum haemorrhage hampers comparative studies and optimization of clinical management. The concept of persistent postpartum haemorrhage, based on refractoriness to initial first-line treatment, was proposed as an alternative to common definitions that are either based on estimations of blood loss or transfused units of packed red blood cells (RBC). We compared characteristics and outcomes of women with severe postpartum haemorrhage captured by these three types of definitions. Methods: In this large retrospective cohort study in 61 hospitals in the Netherlands we included 1391 consecutive women with postpartum haemorrhage who received either ≥4 units of RBC or a multicomponent transfusion. Clinical characteristics and outcomes of women with severe postpartum haemorrhage defined as persistent postpartum haemorrhage were compared to definitions based on estimated blood loss or transfused units of RBC within 24 h following birth. Adverse maternal outcome was a composite of maternal mortality, hysterectomy, arterial embolisation and intensive care unit admission. Results: One thousand two hundred sixty out of 1391 women (90.6%) with postpartum haemorrhage fulfilled the definition of persistent postpartum haemorrhage. The majority, 820/1260 (65.1%), fulfilled this definition within 1 h following birth, compared to 819/1391 (58.7%) applying the definition of ≥1 L blood loss and 37/845 (4.4%) applying the definition of ≥4 units of RBC. The definition persistent postpartum haemorrhage captured 430/471 adverse maternal outcomes (91.3%), compared to 471/471 (100%) for ≥1 L blood loss and 383/471 (81.3%) for ≥4 units of RBC. Persiste

Published
2019
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9. Immunophenotypic measurable residual disease (MRD) in acute myeloid leukemia: Is multicentric MRD assessment feasible?

Author

Brooimans, R.A. (Rik), Velden, V.H.J. (Vincent) van der, Boeckx, N. (Nancy), Slomp, J. (Jennita), Preijers, F.W.M.B. (Frank), Marvelde, J.G. (Jeroen) te, Van, N.M. (Ngoc M.), Heijs, A. (Antoinette), Huys, E. (Erik), Holt, B. (Bronno) van der, Greef, G.E. (Georgine) de, Kelder, A. (Angele), Schuurhuis, G.J. (Gerrit Jan), Brooimans, R.A. (Rik), Velden, V.H.J. (Vincent) van der, Boeckx, N. (Nancy), Slomp, J. (Jennita), Preijers, F.W.M.B. (Frank), Marvelde, J.G. (Jeroen) te, Van, N.M. (Ngoc M.), Heijs, A. (Antoinette), Huys, E. (Erik), Holt, B. (Bronno) van der, Greef, G.E. (Georgine) de, Kelder, A. (Angele), and Schuurhuis, G.J. (Gerrit Jan)

Abstract

Flow-cytometric detection of now termed measurable residual disease (MRD) in acute myeloid leukemia (AML) has proven to have an independent prognostic impact. In a previous multicenter study we developed protocols to accurately define leukemia-associated immunophenotypes (LAIPs) at diagnosis. It has, however, not been demonstrated whether the use of the defined LAIPs in the same multicenter setting results in a high concordance between centers in MRD assessment. In the present paper we evaluated whether interpretation of list-mode data (LMD) files, obtained from MRD assessment of previously determined LAIPs during and after treatment, could reliably be performed in a multicenter setting. The percentage of MRD positive cells was simultaneously determined in totally 173 LMD files from 77 AML patients by six participating centers. The quantitative concordance between the six participating centers was meanly 84%, with slight variation of 75%–89%. In addition our data showed that the type and number of LAIPs were of influence on the performance outcome. The highest concordance was observed for LAIPs with cross-lineage expression, followed by LAIPs with an asynchronous antigen expression. Our results imply that immunophenotypic MRD assessment in AML will only be feasible when fully standardized methods are used for reliable multicenter assessment.

Published
2019
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14. Clinical characteristics of women captured by extending the definition of severe postpartum haemorrhage with 'refractoriness to treatment': a cohort study

Author

Henriquez, D, Gillissen, A, Smith, SM, Cramer, RA, van den Akker, T, Zwart, JJ, van Roosmalen, JJ, Bloemenkamp, KW, Bom, JG, Adriaanse, HJ, Akker, ESA, Baas, MI, Bank, CMC, Beek, E, de Boer, BAG, Boer, K, van der Borden, DMR, Bremer, HA, Brons, JTJ, Burggraaff, JM, Ceelie, H, Chon, H, Cikot, JLM, Delemarre, FMC, Diris, JHC, Doesburg-van Kleffens, M, van Dooren, IMA, van Duijnhoven, JLP, van Dunn, FM, Duvekot, J.J., Engbers, P, Hulst, MJW, Feitsma, H, Fouraux, MA, Franssen, MT, Frasa, MAM, van Gammeren, AJ, Gemund, N, Graaf, F, Groot, CJM, Hackeng, CM, van der Ham, DP, Hanssen, M, Hasaart, THM, Hendriks, HA, Henskens, YMC, Hermsen, BBJ, Hogenboom, S, Hooker, A, Hudig, F, Huijssoon, AMG, Huisjes, AJM, Jonker, N, Kabel, PJ, van Kampen, C, de Keijzer, MH, van de Kerkhof, DH, Keuren, JFW, Kleiverda, G, Klinkspoor, JH, Koehorst, SGA, Kok, M, Kok, RD, de Kok, JB, Koops, A, Kortlandt, W, Langenveld, J, Leers, MPG, Leyte, A, de Mare, A, Martens, GDM, Meekers, JH, van Meir, CA, Metz, GCH, Michielse, E, Mostert, LJ, Bijvank, S, Oostenveld, E, Osmanovic, N, Oudijk, MA, Mirani-Oostdijk, CP, van Pampus, E C M, Papatsonis, DNM, Peters, RHM, Ponjee, GA, Pontesilli, M, Porath, MM, Post, MS, Pouwels, JGJ, Prinzen, L, Roelofsen, JMT, Rondeel, JJM, van der Salm, PCM, Scheepers, HCJ, Schippers, DH, Schuitemaker, NWE, Sikkema, JM, Slomp, J, Smit, JWA, Snuif-de Lange, YS, van der Stappen, JWJ, Steures, P, Tax, GHM, Treskes, M, Ulenkate, H, van Unnik, GA, van der Veen, BS, Verhagen, TEM, Versendaal, J, Visschers, B, Visser, O, Visser, H, De Vooght, KMK, Vries, MJ, Waard, H, Weerkamp, F, Weinans, MJN, de Wet, H, Wijnen, M (Mandy), van Wijngaarden, WJ, de Wit, AC, Woiski, MD, TeMp, OHSG, Henriquez, D, Gillissen, A, Smith, SM, Cramer, RA, van den Akker, T, Zwart, JJ, van Roosmalen, JJ, Bloemenkamp, KW, Bom, JG, Adriaanse, HJ, Akker, ESA, Baas, MI, Bank, CMC, Beek, E, de Boer, BAG, Boer, K, van der Borden, DMR, Bremer, HA, Brons, JTJ, Burggraaff, JM, Ceelie, H, Chon, H, Cikot, JLM, Delemarre, FMC, Diris, JHC, Doesburg-van Kleffens, M, van Dooren, IMA, van Duijnhoven, JLP, van Dunn, FM, Duvekot, J.J., Engbers, P, Hulst, MJW, Feitsma, H, Fouraux, MA, Franssen, MT, Frasa, MAM, van Gammeren, AJ, Gemund, N, Graaf, F, Groot, CJM, Hackeng, CM, van der Ham, DP, Hanssen, M, Hasaart, THM, Hendriks, HA, Henskens, YMC, Hermsen, BBJ, Hogenboom, S, Hooker, A, Hudig, F, Huijssoon, AMG, Huisjes, AJM, Jonker, N, Kabel, PJ, van Kampen, C, de Keijzer, MH, van de Kerkhof, DH, Keuren, JFW, Kleiverda, G, Klinkspoor, JH, Koehorst, SGA, Kok, M, Kok, RD, de Kok, JB, Koops, A, Kortlandt, W, Langenveld, J, Leers, MPG, Leyte, A, de Mare, A, Martens, GDM, Meekers, JH, van Meir, CA, Metz, GCH, Michielse, E, Mostert, LJ, Bijvank, S, Oostenveld, E, Osmanovic, N, Oudijk, MA, Mirani-Oostdijk, CP, van Pampus, E C M, Papatsonis, DNM, Peters, RHM, Ponjee, GA, Pontesilli, M, Porath, MM, Post, MS, Pouwels, JGJ, Prinzen, L, Roelofsen, JMT, Rondeel, JJM, van der Salm, PCM, Scheepers, HCJ, Schippers, DH, Schuitemaker, NWE, Sikkema, JM, Slomp, J, Smit, JWA, Snuif-de Lange, YS, van der Stappen, JWJ, Steures, P, Tax, GHM, Treskes, M, Ulenkate, H, van Unnik, GA, van der Veen, BS, Verhagen, TEM, Versendaal, J, Visschers, B, Visser, O, Visser, H, De Vooght, KMK, Vries, MJ, Waard, H, Weerkamp, F, Weinans, MJN, de Wet, H, Wijnen, M (Mandy), van Wijngaarden, WJ, de Wit, AC, Woiski, MD, and TeMp, OHSG

Published
2019

15. Immunophenotypic measurable residual disease (MRD) in acute myeloid leukemia: Is multicentric MRD assessment feasible?

Author

Brooimans, Rik, van der Velden, Vincent, Boeckx, N, Slomp, J, Preijers, F, te Marvelde, Jeroen, Van, Mai, Heijs, A, Huys, E, van der Holt, Ronnie, Greef, Georgine, Kelder, A, Schuurhuis, GJ, Brooimans, Rik, van der Velden, Vincent, Boeckx, N, Slomp, J, Preijers, F, te Marvelde, Jeroen, Van, Mai, Heijs, A, Huys, E, van der Holt, Ronnie, Greef, Georgine, Kelder, A, and Schuurhuis, GJ

Published
2019

16. Implementing lean practices in manufacturing SMEs: testing ‘critical success factors’ using Necessary Condition Analysis

Author

Knol, W.H., Slomp, J., Schouteten, R.L.J., Lauche, K., Knol, W.H., Slomp, J., Schouteten, R.L.J., and Lauche, K.

Abstract

09 januari 2018, Contains fulltext : 195215.pdf (publisher's version ) (Open Access), Lean practices are known to increase operational performance. Previous research has identified critical success factors for implementing lean practices. This research aims to examine the extent to which success factors are critical for various degrees of lean practice implementation. Using multiple-respondent self-assessments from 33 Dutch manufacturing small and medium-sized enterprises (SMEs), we conducted a Necessary Condition Analysis. Our findings indicated that the criticality of success factors is progression dependent. In the initial stages of the lean journey, SMEs could improve their lean practices in a bottom-up manner through local factors such as a learning focus, improvement training and support congruence. When lean practices are more advanced, some company-wide factors must be present: top management support, a shared improvement vision and a supplier link. Our findings question the universality of success factors such as strategic involvement and indicate the need for a more dynamic model of lean implementation.

Published
2018

17. Implementing lean practices in manufacturing SMEs: testing ‘critical success factors’ using Necessary Condition Analysis

Author

Knol, W.H., Slomp, J., Schouteten, R.L.J., Lauche, K., Knol, W.H., Slomp, J., Schouteten, R.L.J., and Lauche, K.

Abstract

09 januari 2018, Contains fulltext : 195215.pdf (publisher's version ) (Open Access), Lean practices are known to increase operational performance. Previous research has identified critical success factors for implementing lean practices. This research aims to examine the extent to which success factors are critical for various degrees of lean practice implementation. Using multiple-respondent self-assessments from 33 Dutch manufacturing small and medium-sized enterprises (SMEs), we conducted a Necessary Condition Analysis. Our findings indicated that the criticality of success factors is progression dependent. In the initial stages of the lean journey, SMEs could improve their lean practices in a bottom-up manner through local factors such as a learning focus, improvement training and support congruence. When lean practices are more advanced, some company-wide factors must be present: top management support, a shared improvement vision and a supplier link. Our findings question the universality of success factors such as strategic involvement and indicate the need for a more dynamic model of lean implementation.

Published
2018

18. Impact of lean interventions on time buffer reduction in a hospital setting.

Author

Roemeling, O., Land, M.J., Ahaus, C.T.B. (Kees), Slomp, J. (Jennita), van den Bijllaardt, W., Roemeling, O., Land, M.J., Ahaus, C.T.B. (Kees), Slomp, J. (Jennita), and van den Bijllaardt, W.

Abstract

This paper focuses on performance changes stemming from a series of lean interventions in a medical laboratory. This research is one of the first to link a series of lean interventions and performance over time. In a mixed-method case study, six years of patient-related throughput data, retrieved from a laboratory computer database, are analysed. Three distinct periods with significant differences in throughput time performance can be distinguished. Semi-structured interviews were held to investigate the lean interventions preceding the performance changes. Given the long-term nature of the study, the event history calendar method was applied to enhance the respondents’ recall and reliability. A single lean intervention, among the hundreds that took place, was supposed to cause the main reduction in throughput times. It concentrate

Published
2017
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19. Financiering gemeentelijke watertaken

Author

Dekker, G., Slomp, J., Dekker, G., and Slomp, J.

Abstract

Gemeenten spelen een belangrijke rol in het stedelijk waterbeheer. Zij zijn geen waterbeheerder, zoals de waterschappen en Rijkswaterstaat, maar hebben wel specifieke watertaken op het gebied van huishoudelijk en bedrijfsmatig afvalwater, hemelwater en grondwater. In de Wet Milieubeheer is de gemeentelijke zorgplicht voor inzameling en transport van stedelijk afvalwater vastgelegd en sinds de inwerkingtreding van de Wet Gemeentelijke Watertaken (2008) zijn in de Waterwet de gemeentelijke zorgplichten voor het inzamelen en verwerken van afvloeiend hemelwater en voor grondwater(maatregelen) opgenomen. De gemeenten bekostigen de gemeentelijke watertaken via de in de Gemeentewet geregelde rioolheffing. Dit artikel beschrijft allereerst de huidige financiering van de gemeentelijke watertaken. Hierbij komt achtereenvolgens de rioolheffing, kostentoerekening en de relatie met de gemeentefinanciën aan de orde. Vervolgens kijken wij terug naar de ontwikkeling in de afgelopen jaren die hebben geleid tot de huidige situatie. Wij sluiten het artikel af met een aantal actuele ontwikkelingen die raken aan de rioolheffing.

Published
2015

20. High Prognostic Impact of Flow Cytometric Minimal Residual Disease Detection in Acute Myeloid Leukemia: Data From the HOVON/SAKK AML 42A Study

Author

Terwijn, M., Putten, W.L. van, Kelder, A., Velden, V.H. van der, Brooimans, R.A., Pabst, T., Maertens, J., Boeckx, N., Greef, G.E. de, Valk, P.J., Preijers, F.W.M.B., Huijgens, P.C., Dräger, A.M., Schanz, U., Jongen-Lavrecic, M., Biemond, B.J., Passweg, J.R., Gelder, M. van, Wijermans, P., Graux, C., Bargetzi, M., Legdeur, M.C., Kuball, J., Weerdt, O. de, Chalandon, Y., Hess, U., Verdonck, L.F., Gratama, J.W., Oussoren, Y.J., Scholten, W.J., Slomp, J., Snel, A.N., Vekemans, M.C., Löwenberg, B., Ossenkoppele, G.J., Schuurhuis, G.J., Terwijn, M., Putten, W.L. van, Kelder, A., Velden, V.H. van der, Brooimans, R.A., Pabst, T., Maertens, J., Boeckx, N., Greef, G.E. de, Valk, P.J., Preijers, F.W.M.B., Huijgens, P.C., Dräger, A.M., Schanz, U., Jongen-Lavrecic, M., Biemond, B.J., Passweg, J.R., Gelder, M. van, Wijermans, P., Graux, C., Bargetzi, M., Legdeur, M.C., Kuball, J., Weerdt, O. de, Chalandon, Y., Hess, U., Verdonck, L.F., Gratama, J.W., Oussoren, Y.J., Scholten, W.J., Slomp, J., Snel, A.N., Vekemans, M.C., Löwenberg, B., Ossenkoppele, G.J., and Schuurhuis, G.J.

Abstract

Item does not contain fulltext

Published
2013

21. High Prognostic Impact of Flow Cytometric Minimal Residual Disease Detection in Acute Myeloid Leukemia: Data From the HOVON/SAKK AML 42A Study

Author

Terwijn, M., Putten, W.L. van, Kelder, A., Velden, V.H. van der, Brooimans, R.A., Pabst, T., Maertens, J., Boeckx, N., Greef, G.E. de, Valk, P.J., Preijers, F.W.M.B., Huijgens, P.C., Dräger, A.M., Schanz, U., Jongen-Lavrecic, M., Biemond, B.J., Passweg, J.R., Gelder, M. van, Wijermans, P., Graux, C., Bargetzi, M., Legdeur, M.C., Kuball, J., Weerdt, O. de, Chalandon, Y., Hess, U., Verdonck, L.F., Gratama, J.W., Oussoren, Y.J., Scholten, W.J., Slomp, J., Snel, A.N., Vekemans, M.C., Löwenberg, B., Ossenkoppele, G.J., Schuurhuis, G.J., Terwijn, M., Putten, W.L. van, Kelder, A., Velden, V.H. van der, Brooimans, R.A., Pabst, T., Maertens, J., Boeckx, N., Greef, G.E. de, Valk, P.J., Preijers, F.W.M.B., Huijgens, P.C., Dräger, A.M., Schanz, U., Jongen-Lavrecic, M., Biemond, B.J., Passweg, J.R., Gelder, M. van, Wijermans, P., Graux, C., Bargetzi, M., Legdeur, M.C., Kuball, J., Weerdt, O. de, Chalandon, Y., Hess, U., Verdonck, L.F., Gratama, J.W., Oussoren, Y.J., Scholten, W.J., Slomp, J., Snel, A.N., Vekemans, M.C., Löwenberg, B., Ossenkoppele, G.J., and Schuurhuis, G.J.

Abstract

Item does not contain fulltext

Published
2013

25. Anatomical and sonographic correlation of the fetal ductus arteriosus in first and second trimester pregnancy

Author

Brezinka, C.A. (Christoph), DeRuiter, M.C. (Marco), Slomp, J. (Jennichjen), Hollander, N.S. (Nicolette) den, Wladimiroff, J.W. (Juriy), Gittenberger-de Groot, A.C. (Adriana), Brezinka, C.A. (Christoph), DeRuiter, M.C. (Marco), Slomp, J. (Jennichjen), Hollander, N.S. (Nicolette) den, Wladimiroff, J.W. (Juriy), and Gittenberger-de Groot, A.C. (Adriana)

Abstract

Ultrasonic visualization of the ductus arteriosus in first and second trimester pregnancies was compared with postmortem preparations. Twenty human fetal postmortem specimens from 8 to 19 weeks menstrual age were examined, 11 with microscopic reconstruction, nine with macroscopic dissection. The angle between ductus arteriosus and aortic isthmus (upstream) and ductus arteriosus and descending aorta (downstream) was determined. In 52 normally developing fetuses between 14 and 27 weeks, the angle between the ductus arteriosus and the thoracic spine as visualized in real-time ultrasound was determined. In a further 19 normally developing fetuses between 14 and 25 weeks, ductal blood flow was visualized by colour velocity imaging (CVI). In anatomical preparations, the upstream angle was always less than 90° and the downstream angle was always 80° or more. These angles were unrelated to menstrual age. In both real-time and CVI ultrasound, the angle between ductus arteriosus and thoracic spine remained at approximately 90°. CVI showed highest blood flow velocities at the point of ductal insertion into the aorta. When performing Doppler ultrasound examinations in the fetal ductus arteriosus, no menstrual age dependent angle adjustment appears to be necessary.

Published
1994
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