The 1, 12 and 24-month therapeutic success rates KU-60019 mouse were 100%, 92%, and 79% in the dilation group, and 100%, 93%, and 87% in the stenting group, respectively. The decrease of the Eckardt score in the stenting group was significantly notable (P < 0.05) than that in the dilation group at the long-term follow-up visits (post-treatment month 12, and 24), although not statistically significant (P > 0.05) at the short-term follow-up visit (post-treatment month 1). The maximal esophageal width of the two groups was comparable (P > 0.05) at the baseline, remaining statistically insignificant at post-treatment month 1 and

12, and became statistically significant (dilation group, 25 [22 to 30] mm; stenting group, 22 [19 to 27] mm, P = 0.004) at post-treatment month 24. Six patients from the dilation group and 5 patients from the stenting group were CT99021 supplier lost to follow-up. In the dilation group, 15 patients (21%) had recurrence of symptoms, whereas 9 patients (13%) in the stenting group were considered to have had treatment failure.

The complications of either treatment were usually mild, transient, and statistically insignificant. Conclusion: Retrievable fully-covered self-expanding metallic stenting had a comparable short-term, but better long-term efficacy in comparison with pneumatic dilation. Key Word(s): 1. achalasia; 2. pneumatic dilation; 3. esophageal stent; Presenting Author: ENQIANG LINGHU Additional Authors: ZHICHU QIN Corresponding Author: ENQIANG LINGHU Affiliations: Department of Gastroenterology and Hepatology, the chinese PLA General Hospital Objective: To propose a new classification of biliary obstruction after liver transplantation for selecting appropriate endoscopic treatment. Methods: we screened out the

data of patients after liver transplantation with endoscopic pictures clear enough to reveal biliary imaging, who underwent endoscopic therapy from May 2006 to September 2011 at our Digestive Endoscopic Center. After analyzing the correlation between intrahepatic biliary and anastomotic structure we proposed a new endoscopic classification (Ling classification) of biliary oxyclozanide obstruction after liver transplantation. There were four types based on the criteria of Ling classification: type A, normal biliary structure; type B, anastomotic stricture and normal intrahepatic biliary structure; type C, narrow and stiff intrahepatic biliary structure or beaded intrahepatic biliary structure or intrahepatic biliary cast without anastomotic stricture; type D, narrow and stiff intrahepatic biliary structure or beaded intrahepatic biliary structure or intrahepatic biliary cast with anastomotic stricture. Two endoscopists made a final decision upon mutual agreement through discussion if their separately recorded characteristics were different.