Key Word(s): 1. Sphincterotomy; 2. Pancreatic stent; 3. Pancreatitis; 4. ERCP; Table 1. Univariate analysis of EPS and EPS and stent group Group Difficult cannulation   P-value EPS, endoscopic sphincterotomy; ERCP, this website endoscopic retrograde cholagio pacreatography; CBD, common bile duct; GB, Gallbladder; SOD, sphincter of oddi dysfunction; PEP, post ERCP pancreatitis Presenting Author: AHMED OURFALI Corresponding Author: AHMED OURFALI Affiliations: Saudia Arabia Objective: With the advent of fibro-optic technology, an Ultra-Slim Endoscope can be introduced into the common bile duct (CBD) peroral, which enables instant visual diagnosis and targeted treatment

of biliary tree pathologies. This novel technique obviates the need for repeated procedures and the cumbersome “mother-baby endoscopic system” of the Endoscopic Retrograde Cholangio-Pancreatography (ERCP).1 Methods: We performed Y 27632 Peroral Direct Cholangioscopy (PDCS) by upper endoscope GIF-XP260 ‘Slim Sight’ (Olympus) after dilatation of the ampulla by Controlled Radial Expansion Balloon Dilatation

(CRE) (Boston Scientific) under fluoroscopy with the patient in prone position and under deep sedation or general anesthesia. Results: Five patients underwent 6 procedures of PDCS for evaluation of post-dilation, suspected CBD stones. In all but one case (3rd patient), the Ultra-Slim Endoscope was successfully introduced into the common bile duct after dilatation, and all stones and sludge were retrieved without residue (F 1,2). In case 5, with the presence of post-dilation stricture, visual confirmation of the absence of any residual stones or tumor up to the confluence of common hepatic duct was established Conclusion: The Peroral Direct Cholangioscopy (PDCS) by Ultra-Slim Endoscope is feasible. It facilitates complete CBD stone removal and excludes any additional pathology. Key Word(s): 1. Cholangioscopy; 2. ERCP; 3. Biliary tracts; Presenting Author: CHONG WANG Additional Authors: PENG YE, GUO-HUA LI, XIAO-JIANG ZHOU,

YOU-XIANG CHEN, NONG-HUA LV Corresponding Author: GUO-HUA LI Affiliations: The First Affiliated Hospital of Nanchang University Objective: The aim was to investigate the efficacy of raw rhubarb soak in prevention of PEP (post-ERCP Resveratrol pancreatitis). Methods: To investigate the difference between raw rhubarb group and control group on the incidence of PEP, 669 cases with ERCP were randomly divided into two groups, raw rhubarb group and control group, from July 2012 to February 2013. In order to exclude the effect of pancreas disease on PEP, all of patients who had suffered pancreatic disease were excluded. The patients who enrolled in raw rhubarb group took 100 ml raw rhubarb soak every 3 hours after ERCP procedure until they were laxatived (50 g raw rhubarb was immersed in 100 ml boiling water for 10 min. This supernate was the soak).