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Ann Transplant. 2020 Jan 10;25:e920677. doi: 10.12659/AOT.920677.

Outcome of Living-Donor Liver Transplantation Using Grafts from Donors Treated for Fatty Liver.

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Department of Gastroenterological Surgery I, Hokkaido University Hospital, Sapporo, Hokkaido, Japan.
Department of Transplant Surgery, Hokkaido University Graduate School of Medicine and Faculty of Medicine, Sapporo, Hokkaido, Japan.
Division of Organ Transplantation, Hokkaido University Hospital, Sapporo, Hokkaido, Japan.


BACKGROUND The aim of this study was to determine the efficacy of treating donors' fatty liver (FL) and to assess early graft function in recipients who received treated FL grafts in living-donor liver transplantation (LDLT). MATERIAL AND METHODS Data were collected for adult-to-adult LDLTs. Donors diagnosed with FL (FL group) received diet-exercise and pharmacological treatment. The perioperative findings and early transplanted graft function were compared with those of donors without FL (non-FL group) during the same period. RESULTS Of 30 donors, 8 were determined to have FL. The median duration of treatment for FL was 58 days. The liver-to-spleen attenuation ratios on CT scan in the FL group were significantly improved after treatment: 0.95 (0.62-1.06) to 1.2 (1.12-1.46) (P=0.003). Liver biopsy prior to donor surgery showed ≤10% fatty infiltration. Postoperative laboratory findings of the donors in the FL group were comparable to those in the non-FL group: maximum alanine transaminase (189.6±94.7 IU/L vs. 196.8±57.4) and maximum total bilirubin (2.2±1.1 mg/dL vs. 1.7±0.5 mg/dL). No major complications were observed after donor hepatectomy in either group. There were no significant differences between the 2 groups in early graft function, as evaluated by laboratory data, ascites volume, and bile production 2 weeks postoperatively. Graft and patient survival were 100% in both groups at 3 months. CONCLUSIONS Preoperative intentional treatment for FL was effective. Early graft function and donor postoperative course were comparable in the 2 groups. These results suggest that well-treated steatotic grafts can be used without jeopardizing donor safety.

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