
Prof Frederic Ris comes from Switzerland, he qualified in 1999 from the Geneva University Medical School (Switzerland). He is since January 2012 a staff surgeon, he is responsible for colorectal surgery, in the Visceral Surgery Service at the Geneva University Hospitals. After 2 years of research, he undertook his general surgical training in Switzerland and in St-Luc Hospital in Belgium (2006), to achieve his general surgical specialist exam in 2008 (FMH). He performed a colorectal fellowship at Oxford University Hospitals between 2010 and 2011. He is an European board certified colorectal and proctology surgeon (EBSQ 2011) and achieve his visceral surgical exam in 2013 (FMH). He has been awarded an MD degree for his research into MRI imaging of islet cells and a Privat Docent (PD, senior lecturer) for his research on fluorescence Imaging. He has been appointed Professor of Surgery in November 2018. . His research won prizes including the Swiss Surgery Society Award and the Marc-Claude Marti Award. He has published over 260 journal articles and book chapters with a H index of 44. His main projects are on 4 different aspects, a.)colorectal and oncologic surgery, b.)pelvic floor and proctology, c.)new technologies and d.) teaching surgery. He has a special interest in Near Infra Red (NIR) imaging for perfusion and lymphnode mapping and on enhanced recovery management. He is expert in minimally invasive colorectal surgery (IBD and cancer), pelvic floor disorders and oncologic surgery. He is also responsible for the HIPEC program and one of the founders of the swiss peritoneal cancer group. He has been appointed vice-director of the Geneva University Hospitals Cancer Center in November 2022.
Selected publications from PubMed
The choice of extraction site modulates the incidence of incisional hernia in colorectal surgery: a cohort analysis.
Burgard M, Liot E, Meurette G, Poletti PA, Toso C, Ris F, Meyer J
Updates Surg. 2026 Aug;78(4):1581-1587 doi: 10.1007/s13304-025-02272-4.
Robotic right hemicolectomy with intracorporeal anastomosis versus laparoscopic right hemicolectomy with extracorporeal anastomosis (PRORHEM): protocol for a randomized controlled trial.
Meyer J, Liot E, Meurette G, Toso C, Ris F
BMC Surg. 2026 Jul 8;26(1) pii: 658. doi: 10.1186/s12893-026-03990-1.
Reply.
Perry WRG, Christensen P, Collinson RJ, Cornish JA, D'Hoore A, Gurland BH, Mellgren A, Ratto C, Ris F, Stevenson ARL, Bordeainou L, Ventral Rectopexy Working Group
Dis Colon Rectum. 2026 Oct 1;69(10):2551 doi: 10.1097/DCR.0000000000004338.
Can Large Language Models Be a Viable Tool for Consensus Working Groups? Experience of the Ventral Rectopexy Expert Consensus Group.
Lee FG, Larson EL, Vermunt JV, Thiels CA, Christensen P, Collinson RJ, Cornish JA, D'Hoore A, Gurland BH, Mellgren A, Ratto C, Ris F, Stevenson ARL, Bordeianou LG, Perry WRG, Ventral Rectopexy Consensus AI Group and the Ventral Rectopexy Working Group
Dis Colon Rectum. 2026 May 1;69(5):836-846 doi: 10.1097/DCR.0000000000004058.
Fluorescence-guided ureter mapping in colorectal surgery: a systematic review of intraureteral ICG and emerging renal fluorophores.
Litchinko A, Denost Q, Noiret B, Ris F, Adamina M
Front Surg. 2026;13:1734869 doi: 10.3389/fsurg.2026.1734869.
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