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  • Title: Effects of recipient size and allograft type on pediatric liver transplantation for biliary atresia.
    Author: Alexopoulos SP, Nekrasov V, Cao S, Groshen S, Kaur N, Genyk YS, Matsuoka L.
    Journal: Liver Transpl; 2017 Feb; 23(2):221-233. PubMed ID: 27862929.
    Abstract:
    The majority of pediatric patients with end-stage liver disease receive a transplant with a whole liver (WL) allograft. However, smaller recipients with biliary atresia (BA) may have improved outcomes with deceased donor partial liver (DDPL) or living donor allografts. This study compares the national outcomes for liver transplantation in BA, with attention to the interaction between liver allograft type and recipient size. From January 2, 2002 to December 30, 2014, 2123 pediatric patients underwent a primary liver transplant for BA. The majority of transplants (53%) were performed with a WL allograft. Utilization of a WL allograft increased from 42% of recipients weighing ≤ 7 kg to 74% of recipients weighing > 14 kg. The 1-, 5-, and 10-year graft survival in recipients weighing ≤7 kg was significantly superior for living donor liver transplantation (LDLT) (91%, 88%, 84%) and DDPL allografts (90%, 84%, 77%) compared with WL allografts (79%, 75%, 74%; P = 0.005). The 1-, 5-, and 10-year graft survival in recipients weighing >14 kg trended toward being inferior in recipients of DDPL allografts (85%, 85%, 71%) compared with WL allografts (96%, 91%, 86%; P = 0.06). Furthermore, the incidence of vascular thrombosis was highest in WL (13%) compared with LDLT (6%) and DDPL (5%) recipients ≤ 7 kg (P = 0.002). Liver retransplantation was also highest in WL (16%) compared with LDLT (9%) and DDPL (9%) recipients ≤ 7 kg (P = 0.02). In conclusion, strong consideration should be given to the use of technical variant allografts in small recipients with BA requiring liver transplantation. Liver Transplantation 23 221-233 2017 AASLD.
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