Definitive Treatment of Infected Pancreatic Fluid Collection by Endoscopic Transmural Drainage

Background/Aims: Recent experience with endoscopic transmural drainage of pancreatic pseudocysts prompted the use of a similar technique for the primary treatment of infected pancreatic fluid collection (PFC) such as pancreatic abscess and infected pancreatic necrosis (IPN). The aim of this study was to determine the safety and effectiveness of endoscopic transmural drainage for the primary treatment of infected PFC complicating acute pancreatitis. Methods: In 11 patients, a total of 13 infected PFC (11 pancreatic abscesses and 2 IPNs) compressing the stomach, duodenum, or both were drained endoscopically by means of an endoscopic fistulization followed by stent (s) placement alone or additional nasopancreatic catheter insertion. Complete resolution of PFC was defined as the absence of symptoms and no residual collection on the follow-up computed tomography. Results: Complete resolution was achieved in 12 infected PFC (92%) (10 pancreatic abscesses and 2 IPNs) after stent placement for a mean duration of 31 days. For IPN and 2 pancreatic abscess, insertion of a nasopancreatic catheter was required to irrigate thick pus or necrotic debris. There was 1 case of bleeding (8%) but no mortality. Conclusions: Endoscopic transmural drainage is an effective therapy with minimal morbidity for infected pancreatic fluid collection compressing the gut lumen and is a valuable alternative to surgical drainage.