alexa Peroral endoscopic drainage debridement of walled-off pancreatic necrosis.
Surgery

Surgery

Surgery: Current Research

Author(s): Papachristou GI, Takahashi N, Chahal P, Sarr MG, Baron TH

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Abstract BACKGROUND: Experience with minimal access, transoral/transmural endoscopic drainage/debridement of walled-off pancreatic necrosis (WOPN) after necrotizing pancreatitis is limited. We sought to determine outcome using this technique. METHODS: Retrospective analysis. RESULTS: From 1998 to 2006, 53 patients underwent transoral/transmural endoscopic drainage/debridement of sterile (27, 51\%) and infected (26, 49\%) WOPN. Intervention was performed a median of 49 days (range, 20-300 days) after onset of acute necrotizing pancreatitis. A median of 3 endoscopic procedures/patient (range, 1-12) were performed. Twenty-one patients (40\%) required concurrent radiologic-guided catheter drainage of associated or subsequent areas of peripancreatic fluid and/or WOPN. Twelve patients (23\%) required open operative intervention a median of 47 days (range, 5-540) after initial endoscopic drainage/debridement, due to persistence of WOPN (n = 3), recurrence of a fluid collection (n = 2), cutaneous fistula formation (n = 2), or technical failure, persistence of pancreatic pain, colonic obstruction, perforation, and flank abscess (n = 1 each). Final outcome after initial endoscopic intervention (median, 178 days) revealed successful endoscopic therapy in 43 (81\%) and persistence of WOPN in 10 (19\%). Preexistent diabetes mellitus, size of WOPN, and extension of WOPN into paracolic gutter were significant predictive factors for need of subsequent open operative therapy. CONCLUSIONS: Successful resolution of symptomatic, sterile, and infected WOPN can be achieved using a minimal access endoscopic approach. Adjuvant percutaneous drainage is necessary in up to 40\% of patients, especially when WOPN extends to paracolic gutters or pelvis. Operative intervention for failed endoscopic treatment is required in about 20\% of patients.
This article was published in Ann Surg and referenced in Surgery: Current Research

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