Purpose: The variation of multiple bile ducts in a living donor graft is not infrequent; however, the literature on the impact of the number of bile ducts on postoperative biliary complications is scarce. We investigated whether the number of biliary duct anastomoses affects the rate of postoperative biliary complications in patients undergoing living donor liver transplantation (LDLT).
Materials And Methods: Between January 2016 and January 2018, all patients who underwent LDLT were reviewed. The patients were divided into 2 groups according to the number bile duct anastomoses (single duct [group A, n = 78] or multiple ducts [group B, n = 94]). Data collection included demographic features, Child Pugh Score (CPS), graft-recipient weight ratio (GRWR), surgical data including technique of biliary anastomosis (duct-to-duct, duct-to-sheath, double duct-to-duct, and hepaticojejunostomy), and postoperative morbidity and mortality.
Results: The duct-to-duct anastomosis was the mostly commonly performed technique in group A, whereas double duct-to-duct and duct-to-sheath were significantly higher in group B. Operating time was quite high in group B compared to group A (438 ± 72 minutes vs 420 ± 61 minutes, respectively; P = .05). Regarding biliary complications (n = 40, 23.2%), the rates of biliary leakage (n = 17, 9.9%) and strictures (n = 25, 14.5%) were similar in both groups (P = .164 and .773, respectively). CPS was positively correlated (for Child B and C, odds ratio [OR]: 10.669 and 17.866, respectively), whereas GRWR was negatively correlated (OR: 9.530) with biliary stricture. Increased risk for bile leakage was observed in younger donors (OR: .929). Although overall mortality rate was 9.8% (n = 17), only 5 of the patients (29%) died of biliary complications.
Conclusion: The number of biliary ducts and anastomoses did not affect the rate of complications. However, CPS, GRWR, and young donor age were found to be predisposing factors for postoperative biliary complications. Mortality was mostly based on the causes other than biliary complications.
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