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1. Treatment and survival of locally recurrent rectal cancer: A cross-sectional population study 15 years after the Dutch TME trial

Author

Aalbers, A.G.J., Acherman, Y., Algie, G.D., Alting von Geusau, B., Amelung, F., Aukema, T.S., Bakker, I.S., Bartels, S.A., Basha, S., Bastiaansen, A.J.N.M., Belgers, E., Bleeker, W., Blok, J., Bosker, R.J.I., Bosmans, J.W., Boute, M.C., Bouvy, N.D., Bouwman, H., Brandt-Kerkhof, A., Brinkman, D.J., Bruin, S., Bruns, E.R.J., Burbach, J.P.M., Burger, J.W.A., Buskens, C.J., Clermonts, S., Coene, P.P.L.O., Compaan, C., Consten, E.C.J., Darbyshire, T., de Mik, S.M.L., de Graaf, E.J.R., de Groot, I., tot Nederveen Cappel, RJ de Vos, de Wilt, J.H.W., van der Wolde, J., Boer, FC den, Dekker, J.W.T., Demirkiran, A., Derkx-Hendriksen, M., Dijkstra, F.R., van Duijvendijk, P., Dunker, M.S., Eijsbouts, Q.E., Fabry, H., Ferenschild, F., Foppen, J.W., Furnee, E.J.B., Gerhards, M.F., Gerven, P., Gooszen, J.A.H., Govaert, J.A., Van Grevenstein, W.M.U., Haen, R., Harlaar, J.J., van der Harst, E., Havenga, K., Heemskerk, J., Heeren, J.F., Heijnen, B., Heres, P., Hoff, C., Hogendoorn, W., Hoogland, P., Huijbers, A., Janssen, P., Jongen, A.C., Jonker, F.H., Karthaus, E.G., Keijzer, A., Ketel, J.M.A., Klaase, J., Kloppenberg, F.W.H., Kool, M.E., Kortekaas, R., Kruyt, P.M., Kuiper, J.T., Lamme, B., Lange, J.F., Lettinga, T., Lips, D.J., Logeman, F., Lutke Holzik, M.F., Madsen, E., Mamound, A., Marres, C.C., Masselink, I., Meerdink, M., Menon, A.G., Mieog, J.S., Mierlo, D., Musters, G.D., Nieuwenhuijzen, G.A.P., Neijenhuis, P.A., Nonner, J., Oostdijk, M., Oosterling, S.J., Paul, P.M.P., Peeters, K.C.M.J., Pereboom, I.T.A., Polat, F., Poortman, P., Raber, M., Reiber, B.M.M., Renger, R.J., van Rossem, C.C., Rutten, H.J., Rutten, A., Schaapman, R., Scheer, M., Schoonderwoerd, L., Schouten, N., Schreuder, A.M., Schreurs, W.H., Simkens, G.A., Slooter, G.D., Sluijmer, H.C.E., Smakman, N., Smeenk, R., Snijders, H.S., Sonneveld, D.J.A., Spaansen, B., Bilgen, EJ Spillenaar, Steller, E., Steup, W.H., Steur, C., Stortelder, E., Straatman, J., Swank, H.A., Sietses, C., Groen, H.A., Hoeve, HG ten, Riele, WW ter, Thorensen, I.M., Tip-Pluijm, B., Toorenvliet, B.R., Tseng, L., Tuynman, J.B., van Bastelaar, J., van Beek, S.C., van de Ven, A.W.H., van de Weijer, M.A.J., van den Berg, C., van den Bosch, I., van der Bilt, J.D.W., van der Hagen, S.J., van der Hul, R., van der Schelling, G., van der Spek, A., van der Wielen, N., van Duyn, E., van Eekelen, C., van Essen, J.A., van Gangelt, K., van Geloven, A.A.W., van Kessel, C., van Loon, Y.T., van Rijswijk, A., van Rooijen, S.J., van Sprundel, T., van Steensel, L., van Tets, W.F., van Westreenen, H.L., Veltkamp, S., Verhaak, T., Verheijen, P.M., Versluis-Ossenwaarde, L., Vijfhuize, S., Vles, W.J., Voeten, S.C., Vogelaar, F.J., Vrijland, W.W., Westerduin, E., Westerterp, M.E., Wetzel, M., Wevers, K.P., Wiering, B., Witjes, C.D.M., Wouters, M.W., Yauw, S.T.K., van der Zaag, E.S., Zeestraten, E.C., Zimmerman, D.D.E., Zwieten, T., Detering, Robin, Karthaus, Eleonora G., Borstlap, Wernard A.A., Marijnen, Corrie A.M., van de Velde, Cornelis J.H., Bemelman, Willem A., Beets, Geerard L., Tanis, Pieter J., and Aalbers, Arend G.J.

Published
2019
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2. Influence of Conversion and Anastomotic Leakage on Survival in Rectal Cancer Surgery; Retrospective Cross-sectional Study

Author

Furnee, E.J.B., Aukema, T.S., Oosterling, S.J., Borstlap, W.A.A., Bemelman, W.A., Tanis, P.J., Aalbers, A., Acherman, Y., Algie, G.D., Geusau, B.A. von, Amelung, F., Bartels, S.A., Basha, S., Bastiaansen, A.J.N.M., Belgers, E., Bleeker, W., Blok, J., Bosker, R.J.I., Bosmans, J.W., Boute, M.C., Bouvy, N.D., Bouwman, H., Brandt-Kerkhof, A., Brinkman, D.J., Bruin, S., Bruns, E.R.J., Burbach, J.P.M., Burger, J.W.A., Buskens, C.J., Clermonts, S., Coene, P.P.L.O., Compaan, C., Consten, E.C.J., Darbyshire, T., Mik, S.M.L. de, Graaf, E.J.R. de, Groot, I. de, Cappel, R.J.L.D.N., Wilt, J.H.W. de, Wolde, J. van der, Boer, F.C. den, Dekker, J.W.T., Demirkiran, A., Derkx-Hendriksen, M., Dijkstra, F.R., Duijvendijk, P. van, Dunker, M.S., Eijsbouts, Q.E., Fabry, H., Ferenschild, F., Foppen, J.W., Gerhards, M.F., Gerven, P., Gooszen, J.A.H., Govaert, J.A., Grevenstein, W.M.U. van, Haen, R., Harlaar, J.J., Harst, E., Havenga, K., Heemskerk, J., Heeren, J.F., Heijnen, B., Heres, P., Hoff, C., Hogendoorn, W., Hoogland, P., Huijbers, A., Janssen, P., Jongen, A.C., Jonker, F.H., Karthaus, E.G., Keijzer, A., Ketel, J.M.A., Klaase, J., Kloppenberg, F.W.H., Kool, M.E., Kortekaas, R., Kruyt, P.M., Kuiper, J.T., Lamme, B., Lange, J.F., Lettinga, T., Lips, D.J., Logeman, F., Holzik, M.F.L., Madsen, E., Mamound, A., Marres, C.C., Masselink, I., Meerdink, M., Menon, A.G., Mieog, J.S., Mierlo, D., Musters, G.D., Nieuwenhuijzen, G.A.P., Neijenhuis, P.A., Nonner, J., Oostdijk, M., Paul, P.M.P., Peeters, K.C.M.J., Pereboom, I.T.A., Polat, F., Poortman, P., Raber, M., Reiber, B.M.M., Renger, R.J., Rossem, C.C. van, Rutten, H.J., Rutten, A., Schaapman, R., Scheer, M., Schoonderwoerd, L., Schouten, N., Schreuder, A.M., Schreurs, W.H., Simkens, G.A., Slooter, G.D., Sluijmer, H.C.E., Smakman, N., Smeenk, R., Snijders, H.S., Sonneveld, D.J.A., Spaansen, B., Bilgen, E.J.S., Steller, E., Steup, W.H., Steur, C., Stortelder, E., Straatman, J., Swank, H.A., Sietses, C., Berge, H.A. ten, Hoeve, H.G. ten, Riele, W.W. ter, Thorensen, I.M., Tip-Pluijm, B., Toorenvliet, B.R., Tseng, L., Tuynman, J.B., Bastelaar, J. van, Beek, S.C. van, Ven, A.W.H. van de, Weijer, M.A.J. van de, Berg, C. van den, Bosch, I. van den, Bilt, J.D.W. van der, Hagen, S.J. van der, Hul, R. van der, Schelling, G. van der, Spek, A. van der, Wielen, N. van der, Duyn, E. van, Eekelen, C. van, Essen, J.A. van, Gangelt, K. van, Geloven, A.A.W. van, Kessel, C. van, Loon, Y.T. van, Rijswijk, A. van, Rooijen, S.J. van, Sprundel, T. van, Steensel, L. van, Tets, W.F. van, Westreenen, H.L. van, Veltkamp, S., Verhaak, T., Verheijen, P.M., Versluis-Ossenwaarde, L., Vijfhuize, S., Vles, W.J., Voeten, S., Vogelaar, F.J., Vrijland, W.W., Westerduin, E., Westerterp, M.E., Wetzel, M., Wevers, K.P., Wiering, B., Witjes, C.D.M., Wouters, M.W., Yauw, S.T.K., Zaag, E.S. van der, Zeestraten, E.C., Zimmerman, D.D., Zwieten, T., and Dutch Snapshot Res Grp

Subjects
Survival, Anastomosis, Laparoscopy, Conversion, Rectal cancer
Published
2019

3. Cross-Sectional Study on MRI Restaging After Chemoradiotherapy and Interval to Surgery in Rectal Cancer: Influence on Short- and Long-Term Outcomes

Author

Detering, R., Borstlap, W.A.A., Broeders, L., Hermus, L., Marijnen, C.A.M., Beets-Tan, R.G.H., Bemelman, W.A., Westreenen, H.L. van, Tanis, P.J., Aalbers, A., Acherman, Y., Algie, G.D., Geusau, B.A. von, Amelung, F., Bartels, S.A., Basha, S., Bastiaansen, A.J.N.M., Belgers, E., Bleeker, W., Blok, J., Bosker, R.J.I., Bosmans, J.W., Boute, M.C., Bouvy, N.D., Bouwman, H., Brandt-Kerkhof, A., Brinkman, D.J., Bruin, S., Bruns, E.R.J., Burbach, J.P.M., Burger, J.W.A., Buskens, C.J., Clermonts, S., Coene, P.P.L.O., Compaan, C., Consten, E.C.J., Darbyshire, T., Mik, S.M.L. de, Graaf, E.J.R. de, Groot, I. de, Cappel, R.J.L.D.T.N., Wilt, J.H.W. de, Wolde, J. van der, Boer, F.C. den, Dekker, J.W.T., Demirkiran, A., Derkx-Hendriksen, M., Dijkstra, F.R., Duijvendijk, P. van, Dunker, M.S., Eijsbouts, Q.E., Fabry, H., Ferenschild, F., Foppen, J.W., Gerhards, M.F., Gerven, P., Gooszen, J.A.H., Govaert, J.A., Grevenstein, W.M.U. van, Haen, R., Harlaar, J.J., Harst, E., Havenga, K., Heemskerk, J., Heeren, J.F., Heijnen, B., Heres, P., Hoff, C., Hogendoorn, W., Hoogland, P., Huijbers, A., Janssen, P., Jongen, A.C., Jonker, F.H., Karthaus, E.G., Keijzer, A., Ketel, J.M.A., Klaase, J., Wit, F., Kloppenberg, H., Kool, M.E., Kortekaas, R., Kruyt, P.M., Kuiper, J.T., Lamme, B., Lange, J.F., Lettinga, T., Lips, D.J., Logeman, F., Holzik, M.F.L., Madsen, E., Mamound, A., Marres, C.C., Masselink, I., Meerdink, M., Menon, A.G., Mieog, J.S., Mierlo, D., Musters, G.D., Nieuwenhuijzen, G.A.P., Neijenhuis, P.A., Nonner, J., Oostdijk, M., Paul, P.M.P., Peeters, K.C.M.J., Pereboom, I.T.A., Polat, F., Poortman, P., Raber, M., Reiber, B.M.M., Renger, R.J., Rossem, C.C. van, Rutten, H.J., Rutten, A., Schaapman, R., Scheer, M., Schoonderwoerd, L., Schouten, N., Schreuder, A.M., Schreurs, W.H., Simkens, G.A., Slooter, G.D., Sluijmer, H.C.E., Smakman, N., Smeenk, R., Snijders, H.S., Sonneveld, D.J.A., Spaansen, B., Bilgen, E.J.S., Steller, E., Steup, W.H., Steur, C., Stortelder, E., Straatman, J., Swank, H.A., Sietses, C., Berge, H.A. ten, Hoeve, H.G. ten, Riele, W.W. ter, Thorensen, I.M., Tip-Pluijm, B., Toorenvliet, B.R., Tseng, L., Tuynman, J.B., Bastelaar, J. van, Beek, S.C. van, Ven, A.W.H. van de, Weijer, M.A.J. van de, Berg, C. van den, Bosch, I. van den, Bilt, J.D.W. van der, Hagen, S.J. van der, Hul, R. van der, Schelling, G. van der, Spek, A. van der, Wielen, N. van der, Duyn, E. van, Eekelen, C. van, Essen, J.A. van, Gangelt, K. van, Geloven, A.A.W. van, Kessel, C. van, Loon, Y.T. van, Rijswijk, A. van, Rooijen, S.J. van, Sprundel, T. van, Steensel, L. van, Tets, W.F. van, Veltkamp, S., Verhaak, T., Verheijen, P.M., Versluis-Ossenwaarde, L., Vijfhuize, S., Vles, W.J., Voeten, S.C., Vogelaar, F.J., Vrijland, W.W., Westerduin, E., Westerterp, M.E., Wetzel, M., Wevers, K.P., Wiering, B., Witjes, C.D.M., Wouters, M.W., Yauw, S.T.K., Zaag, E.S. van der, Zeestraten, E.C., Zimmerman, D.D., Zwieten, T., Dutch Snapshot Res Grp, Groningen Institute for Organ Transplantation (GIOT), Value, Affordability and Sustainability (VALUE), ​Robotics and image-guided minimally-invasive surgery (ROBOTICS), CCA - Cancer Treatment and quality of life, Surgery, Amsterdam Reproduction & Development (AR&D), and Amsterdam Gastroenterology Endocrinology Metabolism

Subjects
Male, IMPACT, medicine.medical_treatment, THERAPY, Tumours of the digestive tract Radboud Institute for Health Sciences [Radboudumc 14], CHEMORADIATION, 0302 clinical medicine, ADJUVANT CHEMOTHERAPY, Interquartile range, Medicine, PATHOLOGICAL COMPLETE RESPONSE, Stage (cooking), Neoadjuvant therapy, Netherlands, Aged, 80 and over, medicine.diagnostic_test, Incidence, ASO Author Reflections, Chemoradiotherapy, Middle Aged, Magnetic Resonance Imaging, Neoadjuvant Therapy, Survival Rate, Treatment Outcome, Oncology, 030220 oncology & carcinogenesis, Surgical Procedures, Operative, SURVIVAL, 030211 gastroenterology & hepatology, Female, TIME-INTERVAL, RADIOTHERAPY, medicine.medical_specialty, RESECTION, Preoperative care, Time-to-Treatment, 03 medical and health sciences, Preoperative Care, Humans, Survival rate, Aged, Neoplasm Staging, Retrospective Studies, business.industry, Rectal Neoplasms, Magnetic resonance imaging, Retrospective cohort study, NEOADJUVANT CHEMORADIOTHERAPY, Surgery, Cross-Sectional Studies, Neoplasm Recurrence, Local, business, Follow-Up Studies
Abstract

Contains fulltext : 215772.pdf (Publisher’s version ) (Open Access) BACKGROUND: The time interval between CRT and surgery in rectal cancer patients is still the subject of debate. The aim of this study was to first evaluate the nationwide use of restaging magnetic resonance imaging (MRI) and its impact on timing of surgery, and, second, to evaluate the impact of timing of surgery after chemoradiotherapy (CRT) on short- and long-term outcomes. METHODS: Patients were selected from a collaborative rectal cancer research project including 71 Dutch centres, and were subdivided into two groups according to time interval from the start of preoperative CRT to surgery (< 14 and >/= 14 weeks). RESULTS: From 2095 registered patients, 475 patients received preoperative CRT. MRI restaging was performed in 79.4% of patients, with a median CRT-MRI interval of 10 weeks (interquartile range [IQR] 8-11) and a median MRI-surgery interval of 4 weeks (IQR 2-5). The CRT-surgery interval groups consisted of 224 (< 14 weeks) and 251 patients (>/= 14 weeks), and the long-interval group included a higher proportion of cT4 stage and multivisceral resection patients. Pathological complete response rate (n = 34 [15.2%] vs. n = 47 [18.7%], p = 0.305) and CRM involvement (9.7% vs. 15.9%, p = 0.145) did not significantly differ. Thirty-day surgical complications were similar (20.1% vs. 23.1%, p = 0.943), however no significant differences were found for local and distant recurrence rates, disease-free survival, and overall survival. CONCLUSIONS: These real-life data, reflecting routine daily practice in The Netherlands, showed substantial variability in the use and timing of restaging MRI after preoperative CRT for rectal cancer, as well as time interval to surgery. Surgery before or after 14 weeks from the start of CRT resulted in similar short- and long-term outcomes.

Published
2019

4. Benchmarking recent national practice in rectal cancer treatment with landmark randomized controlled trials

Author

Borstlap, W.A., Deijen, C.L., Dulk, M. den, Bonjer, H.J., Velde, C.J. van de, Bemelman, W.A., Tanis, P.J., Aalbers, A., Acherman, Y., Algie, G.D., Geu-sau, B. von, Amelung, F., Aukema, T.S., Bakker, I.S., Bartels, S.A., Basha, S., Bastiaansen, A.J., Belgers, E.H.J., Bleeker, W., Blok, J., Bosker, R.J.I., Bosmans, J.W., Boute, M.C., Bouvy, N.D., Bouwman, H., Brandt-Kerkhof, A., Brinkman, D.J., Bruin, S., Bruns, E.R.J., Burbach, J.P.M., Burger, J.W., Buskens, C.J., Clermonts, S., Coene, P.P.L.O., Compaan, C., Consten, E.C., Darbyshire, T., Mik, S.M.L. de, Graaf, E.J. de, Groot, I de, Cappel de Vos Tot Nederveen, R.J.L., Wilt, J.H.W. de, Wolde, J. van der, Boer, F.C. den, Dekker, J.W.T., Demirkiran, A., Derkx-Hendriksen, M., Dijkstra, F.R., Duijvendijk, P. van, Dunker, M.S., Eijsbouts, Q.E., Fabry, H., Ferenschild, F.T.J., Foppen, J.W., Furnee, E.J.B., Gerhards, M.F., Gerven, P, Gooszen, J.A.H., Govaert, J.A., Grevenstein, W.M. van, Haen, R., Harlaar, J.J., Harst, E, Havenga, K., Heemskerk, J., Heeren, J.F., Heijnen, B., Heres, P., Hoff, C., Hogendoorn, W., Hoogland, P., Huijbers, A, Janssen, P., Jongen, A.C., Jonker, F.H., Karthaus, E.G., Keijzer, A, Ketel, J.M.A., Klaase, J., Kloppenberg, F.W.H., Kool, M.E., Kortekaas, R., Kruyt, P.M., Kuiper, J.T., Lamme, B., Lange, J.F., Lettinga, T., Lips, D.J., Logeman, F., Holzik, M.F., Madsen, E., Mamound, A., Marres, C.C., Masselink, I., Meerdink, M., Menon, A.G., Mieog, J.S., Mierlo, D. van, Musters, G.D., Neijenhuis, P.A., Nonner, J., Oostdijk, M, Oosterling, S.J., Paul, P.M.P., Peeters, K.C., Pereboom, I.T.A., Polat, F., Poortman, P., Raber, M., Reiber, B.M.M., Renger, R.J., Rossem, C.C. van, Rutten, H.J., Rutten, A., Schaapman, R., Scheer, M.G.W., Schoonderwoerd, L., Schouten, N., Schreuder, A.M., Schreurs, W.H., Simkens, G.A., Slooter, G.D., Sluijmer, H.C.E., Smakman, N., Smeenk, R., Snijders, H.S., Sonneveld, D.J.A., Spaansen, B., Spillenaar Bilgen, E.J., Steller, E., Steup, W.H., Steur, C., Stortelder, E., Straatman, J., Swank, H.A., Sietses, C., Berge, H.A. ten, Hoeve, H.G. ten, Riele, W.W. ter, Thorensen, I.M., Tip-Pluijm, B., Toorenvliet, B.R., Tseng, L., Tuynman, J.B., Bastelaar, J. van, Beek, S.V. van, Ven, A.W.H. van de, Weijer, M.A.J. van de, Berg, C. van den, Bosch, I. van den, Bilt, J.D.W. van der, Hagen, S.J. van der, Hul, R. van der, Schelling, G.P. van der, Spek, A van der, Wielen, N. van der, Duyn, E. van, Eekelen, C. van, Essen, J.A. van, Gangelt, K. van, Geloven, A.A. van, Kessel, C. Van, Loon, Y.T. van, Rijswijk, A. van, Rooijen, S.J. van, Sprundel, T. van, Steensel, L. van, Tets, W.F van, Westreenen, H.L. van, Veltkamp, S., Verhaak, T., Verheijen, P.M., Versluis-Ossenwaarde, L., Vijfhuize, S., Vles, W.J., Voeten, S., Vogelaar, F.J., Vrijland, W.W., Westerduin, E., Westerterp, M., Wetzel, M., Wevers, K., Wiering, B., Witjes, A.C., Wouters, M.W., Yauw, S.T.K., Zeestraten, E.C., Zimmerman, D., Zwieten, T., Groningen Institute for Organ Transplantation (GIOT), Value, Affordability and Sustainability (VALUE), ​Robotics and image-guided minimally-invasive surgery (ROBOTICS), Surgery, CCA - Cancer Treatment and quality of life, APH - Quality of Care, APH - Global Health, Anatomy and neurosciences, VU University medical center, AGEM - Re-generation and cancer of the digestive system, AGEM - Digestive immunity, Neurology, Internal medicine, ACS - Microcirculation, MUMC+: MA Heelkunde (9), RS: MHeNs - R2 - Mental Health, Psychiatrie & Neuropsychologie, Promovendi MHN, RS: MHeNs - R1 - Cognitive Neuropsychiatry and Clinical Neuroscience, RS: NUTRIM - R1 - Metabolic Syndrome, RS: NUTRIM - R2 - Liver and digestive health, Revalidatie, RS: CARIM - R1.03 - Cell biochemistry of thrombosis and haemostasis, Biochemie, Promovendi CD, Ondersteunend personeel NTM, Promovendi NTM, Promovendi PHPC, RS: GROW - R3 - Innovative Cancer Diagnostics & Therapy, MUMC+: MA AIOS Heelkunde (9), Promovendi ODB, MUMC+: MA AIOS Anesthesiologie (9), Pathologie, AGEM - Amsterdam Gastroenterology Endocrinology Metabolism, CCA - Cancer Treatment and Quality of Life, Graduate School, and Other departments

Subjects
Male, Transanal Endoscopic Microsurgery, Colorectal cancer, medicine.medical_treatment, NETHERLANDS, law.invention, Tumours of the digestive tract Radboud Institute for Health Sciences [Radboudumc 14], 0302 clinical medicine, ADJUVANT CHEMOTHERAPY, Randomized controlled trial, law, Interquartile range, Prospective Studies, Registries, Rectal cancer, Intersectoral Collaboration, Randomized Controlled Trials as Topic, Aged, 80 and over, Medical Audit, Gastroenterology, Margins of Excision, Chemoradiotherapy, Benchmarking, Middle Aged, Total mesorectal excision, Reconstructive and regenerative medicine Radboud Institute for Molecular Life Sciences [Radboudumc 10], Treatment Outcome, snapshot study, 030220 oncology & carcinogenesis, OPEN SURGERY, Cohort, Female, 030211 gastroenterology & hepatology, RADIOTHERAPY, medicine.medical_specialty, Disease-Free Survival, 03 medical and health sciences, ANTERIOR RESECTION, medicine, Humans, Aged, Retrospective Studies, oncologic outcomes, Rectal Neoplasms, business.industry, General surgery, TOTAL MESORECTAL EXCISION, medicine.disease, Surgery, Reconstructive and regenerative medicine Radboud Institute for Health Sciences [Radboudumc 10], Radiation therapy, Cross-Sectional Studies, Circumferential resection margin, Neoplasm Recurrence, Local, business
Abstract

Aim A Snapshot study design eliminates changes in treatment and outcome over time. This population based Snapshot study aimed to determine current practice and outcome of rectal cancer treatment with published landmark randomized controlled trials as a benchmark.Method In this collaborative research project, the dataset of the Dutch Surgical Colorectal Audit was extended with additional treatment and long-term outcome data. All registered patients who underwent resection for rectal cancer in 2011 were eligible. Baseline characteristics and outcome were evaluated against the results of the Dutch TME trial and the COLOR II trial from which the original datasets were obtained.Results A total of 71 hospitals participated, and data were completed for 2102 out of the potential 2633 patients (79.8%). Median follow-up was 41 (interquartile range 25-47) months. Overall circumferential resection margin (CRM) involvement was 9.3% in the Snapshot cohort and 18.5% in the Dutch TME trial. CRM positivity after laparoscopic resection was 7.8% in the Snapshot and 9.5% in the COLOR II trial. Three-year overall local recurrence rate in the Snapshot was 5.9%, with a disease-free survival of 67.1% and overall survival of 79.5%. Benchmarking with the randomized controlled trials revealed an overall favourable long-term outcome of the Snapshot cohort.Conclusion This study showed that current rectal cancer care in a large unselected Dutch population is of high quality, with less positive CRM since the TME trial and oncologically safe implementation of minimally invasive surgery after the COLOR II trial.

Published
2017

5. Benchmarking recent national practice in rectal cancer treatment with landmark randomized controlled trials

Author

Borstlap, W.A.A., Deijen, C.L., Dulk, M. den, Bonjer, H.J., Velde, C.J. van de, Bemelman, W.A., Tanis, P.J., Aalbers, A., Acherman, Y., Algie, G.D., Geu-sau, B.A. von, Amelung, F., Aukema, T.S., Bakker, I.S., Bartels, S.A., Basha, S., Bastiaansen, A.J.N.M., Belgers, E., Bleeker, W., Blok, J., Bosker, R.J.I., Bosmans, J.W., Boute, M.C., Bouvy, N.D., Bouwman, H., Brandt-Kerkhof, A., Brinkman, D.J., Bruin, S., Bruns, E.R.J., Burbach, J.P.M., Burger, J.W.A., Buskens, C.J., Clermonts, S., Coene, P.P.L.O., Compaan, C., Consten, E.C.J., Darbyshire, T., Mik, S.M.L. de, Graaf, E.J.R. de, Groot, I. de, Cappel, R.J.L.D.T.N., Wilt, J.H.W. de, Wolde, J. van der, Boer, F.C. den, Dekker, J.W.T., Demirkiran, A., Derkx-Hendriksen, M., Dijkstra, F.R., Duijvendijk, P. van, Dunker, M.S., Eijsbouts, Q.E., Fabry, H., Ferenschild, F., Foppen, J.W., Furnee, E.J.B., Gerhards, M.F., Gerven, P., Gooszen, J.A.H., Govaert, J.A., Grevenstein, W.M.U. van, Haen, R., Harlaar, J.J., Harst, E., Havenga, K., Heemskerk, J., Heeren, J.F., Heijnen, B., Heres, P., Hoff, C., Hogendoorn, W., Hoogland, P., Huijbers, A., Janssen, P., Jongen, A.C., Jonker, F.H., Karthaus, E.G., Keijzer, A., Ketel, J.M.A., Klaase, J., Kloppenberg, F.W.H., Kool, M.E., Kortekaas, R., Kruyt, P.M., Kuiper, J.T., Lamme, B., Lange, J.F., Lettinga, T., Lips, D.J., Logeman, F., Holzik, M.F.L., Madsen, E., Mamound, A., Marres, C.C., Masselink, I., Meerdink, M., Menon, A.G., Mieog, J.S., Mierlo, D., Musters, G.D., Neijenhuis, P.A., Nonner, J., Oostdijk, M., Oosterling, S.J., Paul, P.M.P., Peeters, K.C.M.J.C., Pereboom, I.T.A., Polat, F., Poortman, P., Raber, M., Reiber, B.M.M., Renger, R.J., Rossem, C.C. van, Rutten, H.J., Rutten, A., Schaapman, R., Scheer, M., Schoonderwoerd, L., Schouten, N., Schreuder, A.M., Schreurs, W.H., Simkens, G.A., Slooter, G.D., Sluijmer, H.C.E., Smakman, N., Smeenk, R., Snijders, H.S., Sonneveld, D.J.A., Spaansen, B., Bilgen, E.J.S., Steller, E., Steup, W.H., Steur, C., Stortelder, E., Straatman, J., Swank, H.A., Sietses, C., Berge, H.A. ten, Hoeve, H.G. ten, Riele, W.W. ter, Thorensen, I.M., Tip-Pluijm, B., Toorenvliet, B.R., Tseng, L., Tuynman, J.B., Bastelaar, J. van, Beek, S.V. van, Ven, A.W.H. van de, Weijer, M.A.J. van de, Berg, C. van den, Bosch, I. van den, Bilt, J.D.W. van der, Hagen, S.J. van der, Hul, R. van der, Schelling, G. van der, Spek, A. van der, Wielen, N. van der, Duyn, E. van, Eekelen, C. van, Essen, J.A. van, Gangelt, K. van, Geloven, A.A.W. van, Kessel, C. van, Loon, Y.T. van, Rijswijk, A. van, Rooijen, S.J. van, Sprundel, T. van, Steensel, L. van, Tets, W.F. van, Westreenen, H.L. van, Veltkamp, S., Verhaak, T., Verheijen, P.M., Versluis-Ossenwaarde, L., Vijfhuize, S., Vles, W.J., Voeten, S., Vogelaar, F.J., Vrijland, W.W., Westerduin, E., Westerterp, M.E., Wetzel, M., Wevers, K., Wiering, B., Witjes, A.C., Wouters, M.W., Yauw, S.T.K., Zeestraten, E.C., Zimmerman, D.D., Zwieten, T., and Dutch Snapshot Res Grp

Subjects
oncologic outcomes, snapshot study, Rectal cancer
Abstract

Aim A Snapshot study design eliminates changes in treatment and outcome over time. This population based Snapshot study aimed to determine current practice and outcome of rectal cancer treatment with published landmark randomized controlled trials as a benchmark.Method In this collaborative research project, the dataset of the Dutch Surgical Colorectal Audit was extended with additional treatment and long-term outcome data. All registered patients who underwent resection for rectal cancer in 2011 were eligible. Baseline characteristics and outcome were evaluated against the results of the Dutch TME trial and the COLOR II trial from which the original datasets were obtained.Results A total of 71 hospitals participated, and data were completed for 2102 out of the potential 2633 patients (79.8%). Median follow-up was 41 (interquartile range 25-47) months. Overall circumferential resection margin (CRM) involvement was 9.3% in the Snapshot cohort and 18.5% in the Dutch TME trial. CRM positivity after laparoscopic resection was 7.8% in the Snapshot and 9.5% in the COLOR II trial. Three-year overall local recurrence rate in the Snapshot was 5.9%, with a disease-free survival of 67.1% and overall survival of 79.5%. Benchmarking with the randomized controlled trials revealed an overall favourable long-term outcome of the Snapshot cohort.Conclusion This study showed that current rectal cancer care in a large unselected Dutch population is of high quality, with less positive CRM since the TME trial and oncologically safe implementation of minimally invasive surgery after the COLOR II trial.

Published
2017

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