Risk factors of bile duct injuries in laparoscopic cholecystectomy

Objective To analyze the risk factors of bile duct injuries in laparoscopic cholecystectomy. Methods The clinical data of 11 243 patients who underwent laparoscopic cholecystectomy between October 1992 and December 2013 in the Xianyang Center Hospital were studied retrospectively. The risk factors of bile duct injuries were analyzed using the Chi-square test to determine the independent risk factors of bile duct injuries. Results Univariate analysis showed that bile duct injuries were associated with male, age ≥65 years, BMI≥25 kg/m2, staging of inflammation, gallbladder atrophy on ultrasonography, thickness of gallbladder wall on ultrasonography, anatomy of Calot's triangle and operator's experience (all P<0.05). Multi-factor and non conditional Logistic regression analyses showed that the independent risk factors of bile duct injury were old men, gallbladder atrophy, anatomy of Calot's triangle and operator's experience (All P<0.05). Conclusion Old men, gallbladder atrophy, anatomy of Calot's triangle and operator's experience were independent risk factors of bile duct injuries. Key words: Laparoscopic cholecystectomy; Bile duct injury; Risk factor