Patients presenting intra-abdominal abcesses following bariatric surgery complicated by fistulae are classically treated by external drainage and endoprosthesis or surgical redo. Morbidity and mortality being increased in case of necrotic collections, an endoscopic debridement treatment might be proposed in certain cases. This present study aim to review the evolution of the patients treated by this method from 2007 to 2011 in the investigators institution.

This retrospective study in an academic tertiary center will review the files of patients who underwent endoscopic drainage and debridement of abdominal abscesses secondary to bariatric surgery leaks . The decision for endoscopic treatment was made by the medico-surgical team in charge of this type of surgery, who had to weigh the high risk of mortality in case of re-intervention, along with endoscopic access to abscesses via the transluminal or percutaneous route based on abdominal imaging.

Data collection will lead to the evaluation of the technical success rate, the clinical success and potential complications.

Inclusion Criteria:

• All the patient treated in an academic tertiary center who underwent endoscopic drainage and debridement of abdominal abscesses secondary to bariatric surgery leaks from october 2007 to April 2011
• septic state

Exclusion Criteria:

• All other necrosectomies performed for pancreatic disorders were excluded from the study

All the patient treated in an academic tertiary center (Erasme Hospital) who underwent endoscopic drainage and debridement of abdominal abscesses secondary to postbariatric surgery leaks from october 2007 to April 2011. All other necrosectomies performed for pancreatic disorders were excluded from the study