Objective: Endoscopic nasobiliary drainage for acute cholangitis is performed with or without endoscopic sphincterotomy. However, sphincterotomy carries a small but important risk of complications. We evaluated the benefits of endoscopic nasobiliary drainage without sphincterotomy for acute cholangitis.
Methods: A total of 166 patients underwent endoscopic nasobiliary drainage with sphincterotomy (73 patients, sphincterotomy group) or without (93 patients, nonsphincterotomy group). The indications were acute cholangitis due to choledocholithiasis (120 patients) or benign (10 patients) or malignant (36 patients) biliary stricture. Patient backgrounds were similar in the two groups. The outcomes of nasobiliary drainage were compared between the groups.
Results: Nasobiliary drainage was successful in 69 patients (95%) in the sphincterotomy group and in 89 (96%) in the nonsphincterotomy group. Efficient drainage was achieved in 67 patients (92%) in the sphincterotomy group and in 87 (94%) in the nonsphincterotomy group. Procedure-related complications developed in eight sphincterotomy-group patients (hemorrhage in three, acute cholecystitis in three, acute pancreatitis in one, catheter withdrawal in one) and in two nonsphincterotomy patients (pancreatitis in one, catheter withdrawal in one) (11% vs 2%; p < 0.05). There were no deaths.
Conclusions: Endoscopic nasobiliary drainage without endoscopic sphincterotomy is a simple, safe, and effective treatment for acute cholangitis. This procedure is especially useful for critically ill patients and those with coagulopathy.