Objectives: We investigated the effects of autologous vein transplant on bile duct injury repair, through observation of the hepatic and biliary system tissue morphology changes and animal survival after bile duct injury repair. Materials and Methods: Rabbits were equally divided into groups. Group A had cholecystectomy and common bile duct resection (length of 0.5 cm), transplant of an autologous vein (length of 0.5 cm), and stent implant. Group B had cholecystectomy and common bile duct resection (length of 1.0 cm), transplant of an autologous vein (length of 1.0 cm), and stent implant. The third group (group C) had cholecystectomy only. Results: Two rabbits died in group A and group B; all experimental animals from group C survived. Regarding liver biochemical indexes at preoperative week 1, at postoperative month 1, and at postoperative month 3, we found no significant differences (paired t test, P > .05). Liver biochemical indexes between groups were also not significantly different (P > .05). At month 3, postoperative liver pathology of experimental animals showed no significant changes and no cholestasis; biliary epithelial cells were seen in the transplant vascular. Conclusions: We conclude that autologous vein graft can effectively repair bile duct injury for a short coloboma.
Key words: Bile duct resection, Biliary repair, Cholecystectomy, Experimental study
IntroductionBile duct injury (BDI) is one of the most serious complications in biliary tract surgery, which can be indicated after trauma, for biliary neoplasms, and for cancer that has infiltrated into the bile duct. Severe bile duct injury can lead to repeated biliary infection, biliary stricture, biliary cirrhosis, liver failure, and even death. Laparoscopic cholecystectomy (LC) has become the standard surgical treatment for gallstone disease and is one of the most routinely performed abdominal procedures by general surgeons. Despite the known benefits of a mini-invasive surgical approach, treatment and prevention of BDI are still challenging because, in most cases, BDI represents a serious problem and can have late complications. 1 The incidence of BDI seems to have decreased compared with earlier periods. 2 However, several studies have shown a persistently higher rate and complexity of BDI when LC is performed compared with the open procedure (0.3% to 0.6% vs 0.2%). [3][4][5][6] However, the incidence of BDI in the LC were reported to be different in some retrospective studies. [7][8][9] To date, the best management strategy in terms of timing of repair remains controversial. [10][11][12] Most authors agree that intraoperative recognition of BDI with immediate repair by specialized hepatopancreatobiliary surgeons offers the best results. 13 In recent years, different materials and methods have been reported for BDI repair, with each having different effects. Our study investigated autologous vein graft for repair of BDI using an animal model.
Materials and MethodsThis study was carried out in strict accordance with the recommendations...