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Traditionally, deceased donor liver grafts receive dual perfusion (DP) through the portal vein and the hepatic artery (HA) either in situ or on the back table. HA perfusion is avoided in living donor liver grafts for fear of damage to the intima and consequent risk of hepatic artery thrombosis (HAT). However, biliary vasculature is predominantly derived from the HA. We hypothesized that antegrade perfusion of the HA in addition to the portal vein on the back table could reduce the incidence of postoperative biliary complications. Consecutive adult patients undergoing living donor liver transplantations were randomized after donor hepatectomy to receive graft perfusion of histidine-tryptophan-ketoglutarate solution either via both the HA and portal vein (DP group, n = 62) or only through the portal vein (standard perfusion [SP] group, n = 62). The primary endpoint was the occurrence of biliary complications (biliary leak/stricture). Secondary endpoints included HAT and patient survival. The incidence of biliary stricture was significantly lower in the DP group (6.5% versus 19.4%; odds ratio, 0.29; 95% confidence interval, 0.09-0.95; P = 0.04). There was no significant reduction in the incidence of HAT, bile leak, or hospital stay between the 2 groups. The 3-year mortality and graft survival rates were significantly higher among patients who received DP compared with SP (P = 0.004 and P = 0.003, respectively). On multivariate analysis, nonperfusion of the HA and preceding bile leak were found to be risk factors for the development of biliary stricture (P = 0.04 and P < 0.001, respectively). In conclusion, DP of living donor liver grafts through both the HA and portal vein on the back table may protect against the development of biliary stricture. This could translate to improved patient survival in the short term.

Introduction In live donor liver transplantation (LDLT), bile duct division is a critical step in donor hepatectomy. Biliary complications hence are a feared sequelae even among donors. Long term data on biliary complications in donors from India are sparse. Methods Prospective evaluation of 452 live donors over 10 years was performed to ascertain the incidence & risk factors of clinically significant biliary complications. Results Of the 452 donor hepatectomies (M: F = 114:338, median age = 38), 66.2% (299) were extended right lobe grafts, 24.1% (109) modified right lobe and 9.7% (44) were left lobe grafts. Portal vein anatomy was Type-I in 85% (386), Type-II in 7.5% (34) and Type-III in 7.1% (32). Following donor hepatectomy, a single bile duct opening occurred only in 46.5% (210) of the grafts. Of the remaining 53.5% grafts, 2 ductal openings were noted in 217 (48%) and three ductal openings in 25 (5.5%). Incidence of multiple openings in the duct were more commonly noted in Type II (70.6%) and III (75%) portal vein anatomy than in grafts with Type I (50.4%) portal anatomy ( P = 0.001) Bile leak was noted in 15 (3.3%) donors which included one broncho-biliary fistula and bilio-pleural fistula. Analysis revealed no association between post-operative biliary complications and type of graft, portal vein anatomy or biliary anatomy. There was a single mortality in this series secondary to biliary sepsis. On long term follow, there were no biliary strictures in any of the patients. Conclusions Biliary complications although rare (3.3%), present significant peri-operative morbidity to the donors.