BACKGROUND: Nonexpert endoscopists cannot achieve high-quality performance during difficult biliary cannulation, representing a significant challenge
precutting is an effective approach for managing these cases. Transpancreatic biliary sphincterotomy (TPBS) is considered more effective than needle-knife precutting owing to its wire-guided technique, which may be suitable for nonexpert endoscopists
however, comparisons between nonexpert and expert endoscopists performing TPBS are not well documented. METHODS: Consecutive patients who underwent TPBS between January 2010 and April 2024 were evaluated. Rates of successful biliary duct cannulation, time to TPBS and bile duct cannulation, and adverse events were compared between both groups. Logistic regression analysis was conducted to identify factors associated with successful bile duct cannulation using TBPS. RESULTS: The study included 140 patients (77 and 63 in the nonexpert and expert groups, respectively). The rates of successful biliary cannulation and overall adverse events (including pancreatitis, 9.1% vs. 9.5%) were 88.3% and 93.7% (p = .38) and 15.6% and 9.5% (p = .32) in the nonexpert and expert groups, respectively. Multivariate analysis revealed that early TPBS (<
22 min) was a significant predictive factor for successful bile duct cannulation. CONCLUSIONS: TBPS may be an effective technique for nonexpert endoscopists
additionally, early TPBS is a significant predictive factor for successful bile duct cannulation.