Chirurgie de conversion et de révision après gastric by-pass : augmentation du risque de fistule après chirurgie de révision par réfection de poche : étude rétrospective de 932 by-pass consécutifs dont 176 révisions et conversions

Abstract : Introduction : nowadays surgeons are dealing more and more with patients experiencing failure of a previous bariatric procedure after the worldwide exponential increase of bariatric surgery. Only a few and contradictory studies investigated both outcomes and complications risk factors in this subset population of bariatric patients. We aimed to study a homogeneous population of patients undergoing REDO-BS resulting in bypass anatomy to evaluate early postoperative outcomes and identify risk factors of postoperative complications and mortality.
Material and Methods : In this study, we compared the outcomes of patients undergoing REDO-BS from another former bariatric procedure into Roux-en-Y gastric bypass (RYGP) to those undergoing primary RYGP. Data were extracted from a prospectively maintained database.
Results : 138 conversional bariatric surgery (CBS) cases resulting in RYGP anatomy et 38 redo bariatric surgery (RBS) cases of pouch resizing (PR) were compared with 756 primary RYGP. They were no statistical significant difference in outcomes between primary and CBS group but patients undergoing PR had a significant higher risk of developing a leak than others. CBS complication risk factors were age (OR= 1.05; p= 0.04), operative time and T2DM (OR=4.11; p=0.03).
Conclusions : CBS is safe and leads to similar early postoperative outcomes as primary RYGP whereas the indication for revisional surgery such as PR should be carefully evaluated as it is associated with an increased risk of leak.
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Master Thesis
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Marine Benois. Chirurgie de conversion et de révision après gastric by-pass : augmentation du risque de fistule après chirurgie de révision par réfection de poche : étude rétrospective de 932 by-pass consécutifs dont 176 révisions et conversions. Médecine humaine et pathologie. 2018. ⟨dumas-01996631⟩

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