Yukako Nemoto1, Rajeev Attam2, Mustafa A Arain3, Guru Trikudanathan3, Shawn Mallery3, Gregory J Beilman4, Martin L Freeman5. 1. Division of Gastroenterology, Hepatology and Nutrition, University of Minnesota, United States; Division of Gastroenterology and Hepatology, Department of Internal Medicine, Toho University Ohashi Medical Center, Japan; Department of Gastroenterology, Kohsei Chuo General Hospital, Japan. 2. Division of Gastroenterology, Hepatology and Nutrition, University of Minnesota, United States; Advanced Endoscopy, Southern California Permanente Medical Group, Kaiser Permanente Downey, United States. 3. Division of Gastroenterology, Hepatology and Nutrition, University of Minnesota, United States. 4. Department of Surgery, University of Minnesota, United States. 5. Division of Gastroenterology, Hepatology and Nutrition, University of Minnesota, United States. Electronic address: freem020@umn.edu.
Abstract
OBJECTIVES: The minimally invasive step-up approach for treatment of walled off necrosis (WON) involves drainage followed by later necrosectomy as needed, and is superior to primary surgical necrosectomy. Reported series of endoscopic transluminal necrosectomy include highly selected patients. We report outcomes of a large series of patients with WON managed by an algorithm based on an endoscopically centered step-up approach. METHODS: Consecutive patients with necrotizing pancreatitis from 2009 to 2014, with intervention only for infected or persistently symptomatic WON. The primary approach involved endoscopic transluminal drainage plus minus necrosectomy whenever feasible, with percutaneous catheter drainage (PCD) plus minus sinus tract endoscopy if not feasible or sufficient. Surgery was reserved for failures of the step up approach. RESULTS: Of 109 consecutive patients with necrotizing pancreatitis, intervention was required in 83, including endoscopic transluminal drainage in 73 (88%) (alone in 49 and combined with PCD in 24), and PCD alone in 10 (12%). 64 (77%) of the 83 patients required endoscopic transluminal and/or sinus tract necrosectomy. Adverse events occurred in 11 (13%). Three patients (4%) failed step up approach and required open surgical necrosectomy. All-cause mortality occurred in 6 (7%) of 83 patients after intervention, including 2 of 3 requiring surgery. CONCLUSIONS: An algorithm based step-up approach for interventions in necrotizing pancreatitis using primarily endoscopic techniques with adjunctive percutaneous approaches as needed resulted in favorable outcomes with small numbers proceeding to open surgery, and with acceptable rates of major complications and mortality. A purely endoscopic transluminal approach was feasible in approximately 60% of patients requiring intervention in this series.
OBJECTIVES: The minimally invasive step-up approach for treatment of walled off necrosis (WON) involves drainage followed by later necrosectomy as needed, and is superior to primary surgical necrosectomy. Reported series of endoscopic transluminal necrosectomy include highly selected patients. We report outcomes of a large series of patients with WON managed by an algorithm based on an endoscopically centered step-up approach. METHODS: Consecutive patients with necrotizing pancreatitis from 2009 to 2014, with intervention only for infected or persistently symptomatic WON. The primary approach involved endoscopic transluminal drainage plus minus necrosectomy whenever feasible, with percutaneous catheter drainage (PCD) plus minus sinus tract endoscopy if not feasible or sufficient. Surgery was reserved for failures of the step up approach. RESULTS: Of 109 consecutive patients with necrotizing pancreatitis, intervention was required in 83, including endoscopic transluminal drainage in 73 (88%) (alone in 49 and combined with PCD in 24), and PCD alone in 10 (12%). 64 (77%) of the 83 patients required endoscopic transluminal and/or sinus tract necrosectomy. Adverse events occurred in 11 (13%). Three patients (4%) failed step up approach and required open surgical necrosectomy. All-cause mortality occurred in 6 (7%) of 83 patients after intervention, including 2 of 3 requiring surgery. CONCLUSIONS: An algorithm based step-up approach for interventions in necrotizing pancreatitis using primarily endoscopic techniques with adjunctive percutaneous approaches as needed resulted in favorable outcomes with small numbers proceeding to open surgery, and with acceptable rates of major complications and mortality. A purely endoscopic transluminal approach was feasible in approximately 60% of patients requiring intervention in this series.
Authors: Nikhil R Thiruvengadam; Janille Miranda; Christopher Kim; Spencer Behr; Carlos Corvera; Sun-Chuan Dai; Kimberly Kirkwood; Hobart W Harris; Kenzo Hirose; Eric Nakakura; James W Ostroff; Michael L Kochman; Mustafa A Arain Journal: Clin Transl Gastroenterol Date: 2021-04-27 Impact factor: 4.396