Cholangiopancreatography, Endoscopic Retrograde

Recording and analyzing electroencephalogram (EEG) and continuous pain monitor data under anesthesia in order to investigating the pharmacodynamic effects of opioids and sedatives.

Background: Transpapillary EUS-BD (rendezvous/antegrade) is gaining acceptance in BBO. The potential of transmural EUS-BD (hepaticogastrostomy/choledochoduodenostomy) in complex BBO warrants study. Aims: To assess feasibility and efficacy of TEA using transmural covered self-expandable metal-stents (cSEMS) to provide interval biliary drainage and create TAF for biliary endotherapy under cholangioscopy or fluoroscopy in BBO not amenable to ERCP.

This study aims to evaluate the efficacy and safety of parecoxib versus indomethacin in preventing post-endoscopic retrograde cholangiopancreatography (ERCP) pancreatitis (PEP). It is a single-center, prospective, randomized, controlled, exploratory trial. Participants will be randomly assigned to receive either parecoxib or indomethacin as a preventive treatment. The primary endpoint is to compare the efficacy of the two drugs in reducing the incidence of PEP. Secondary endpoints include the incidence of moderate to severe PEP and post-ERCP-related adverse events. This study will systematically assess the efficacy and safety of both drugs, providing preliminary data for future larger confirmatory trials.