Presence of Aberrant Anatomy Is an Independent Predictor of Bile Duct Injury During Cholecystectomy

Author:

Natsume Seiji1,Kato Takehito1,Hiramatsu Kazuhiro1,Shibata Yoshihisa1,Yoshihara Motoi1,Aoba Taro1,Aiba Toshisada1,Takada Akira2

Affiliation:

1. Department of General Surgery and

2. Department of Radiology, Toyohashi Municipal Hospital, Toyohashi, Japan

Abstract

The aim of this study is to investigate the impact of an aberrant anatomy diagnosed with MR cholangiography on the occurrence of bile duct injury. Although many authors report that aberrant anatomy is a strong risk factor for the occurrence of bile duct injury during cholecystectomy, no reports have examined the incidence of aberrant anatomy and its association as an independent risk factor for bile duct injury while controlling for potential confounding factors. This study involved 1289 patients. All images of MR cholangiography were reviewed and the findings, including the presence of aberrant anatomy, thickening of the gallbladder wall, and cystic duct stones—which may be related to the occurrence of bile duct injury—were recorded. The surgical outcome was compared according to the presence or absence of an aberrant anatomy and the predictive factors for bile duct injury were investigated. Aberrant anatomy was present in 11.2% of cases. The incidence of bile duct injury was significantly higher in patients with aberrant anatomy compared with patients without (3.5% versus 0.3%). By multivariate analysis, the presence of an aberrant anatomy and thickening of the gallbladder wall was an independent predictor for bile duct injury occurrence [odds ratio (OR) =16.56, P = 0.001; OR = 10.96, P = 0.006, respectively]. The presence of an aberrant anatomy and thickening of the gallbladder wall is an independent risk factor for the occurrence of bile duct injury.

Publisher

International College of Surgeons

Subject

Surgery

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