Abstract

Multiple graft duct openings are associated with a high incidence of biliary complications (BCs), and biliary reconstruction for multiple graft bile ducts (BDs) remains a surgical challenge during living donor liver transplantation (LDLT). In particular, biliary reconstruction using "high biliary radicals (HBR)" of recipients for multiple graft BDs has a high probability of BCs. Herein, we analyzed outcomes by retrospectively reviewing 283 patients who underwent right lobe LDLT from January 2013 to September 2019. In total, 112 LDLT procedures using grafts with multiple BDs have been performed under our policies. In recent cases with 2 orifices located on the same hilar plate, we did dunking with a mucosal eversion technique instead of ductoplasty. When 2 orifices are located far apart on different hilar plates, we attempted to perform separate duct-to-duct anastomosis (DDA) using HBR of the recipient instead of hepaticojejunostomy. Among patients with multiple graft BDs, 20 underwent ductoplasty, 50 were treated using dunking with mucosal eversion technique, and 40 underwent separate DDA using HBR (HBR group). The incidence rates of biliary leakage and stricture were 8.9% and 10.7% in the multiple BD group, respectively, congruent with the outcomes of the single BD group. In subgroup analysis, we compared clinical outcomes between the HBR and single BD groups; the incidence of BCs in the HBR group was 15.0%, comparable to that of the single BD group. In conclusion, multiple graft BDs do not negatively impact the BC rate compared with single-graft BD when applying our technique to prevent BCs.

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