Abstract
Objective To evaluate the endoscopic precut sphincterotomy for malignant biliary obstruction. Methods Endoscopic precut sphincterotomy was performed in different ways for 46 patients with malignant biliary obstruction and difficult biliary cannulation according to the anatomic structure of the papilla and cannulation. Ways of precut were summarized and complications were analyzed. Results Precut sphincterotomy was performed with bow-like knife in 4 patients, with needle-knife in 24, with trans-pancreatic sphincterotomy in 12 and with combined ways in 6. The procedure succeeded in 35 cases （76. 1%, 35/46）. Post-procedure complications included bleeding in 3 patients, pancreatitis in 1, hyper-amylasemia in 2and cholangitis in 1. No perforation was found. Conclusion Endoscopic precut sphincterotomy is not only able to improve the therapeutic endoscopy achievement rate in patients with malignant biliary obstruction, but also to lower the incidence of complications if used adequately. Key words: Biliary tract neoplasms; Cholangiopancreatography,endoscopic retrograde; Intubation; Precut sphincterotomy
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