Incidence and risk factors of remnant cbd stones in patients underwent cholecystectomy after endoscopic cbd stone extraction for both cbd stone and gb stone

Patients with choledocho- cholecystolithiasis undergo generally cholecystectomy after endoscopic CBD stone extraction. Early recurrence of CBD stone after cholecystectomy can occur due to migration of GB stone into bile duct during operation or incomplete endoscopic removal of CBD stone. The aim of this study was to investigate the incidence and risk factors of remnant CBD stones after cholecystectomy.