Identification of risk factors for obstructive cholecystitis following placement of biliary stent in unresectable malignant biliary obstruction: a 5-year retrospective analysis in single center.

Biliary stent across the OCD, GB opacification, and SEMS were established as potential risk factors for post-ERCP cholecystitis. Thus, the strategy of using shorter stent length and avoiding unnecessary contrast injection could be a reasonable treatment option for selected patients with high risk of cholecystitis. Furthermore, EUS-GBD is not only safe and reliable for acute cholecystitis, but it also improves quality of life.