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KMID : 0191120200350370304
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Journal of Korean Medical Science
2020 Volume.35 No. 37 p.304 ~ p.304
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Prognosis of Split Liver Transplantation Compared with Whole Liver Transplantation in Adult Patients: Single-center Results under the Korean MELD Score-based Allocation Policy
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Park Gil-Chun
Hwang Shin
Song Gi-Won
Jung Dong-Hwan
Ha Tae-Yong
Ahn Chul-Soo
Moon Deok-Bog
Kim Ki-Hun
Yoon Young-In
Kang Woo-Hyoung
Cho Hwui-Dong
Choi Jin-Uk
Kim Min-Jae
Na Byeong-Gon
Kim Sang-Hoon
Lee Sung-Gyu
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Abstract
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Background: Split liver transplantation (SLT) has been occasionally performed in Korea. This study compared the incidence and prognosis of SLT with whole liver transplantation (WLT) in adult patients.
Methods: Between June 2016 and November 2019, 242 adult patients underwent a total of 256 deceased donor liver transplantation operations. SLT was performed in 7 patients (2.9%).
Results: The mean age of SLT donors was 29.7 ± 7.4 years, and the mean age of recipients was 55.7 ± 10.6 years, with the latter having a mean model for end-stage liver disease score of 34.6 ± 3.1. Mean split right liver graft weight was 1,228.6 ± 149.7 g and mean graft-recipient weight ratio was 1.97 ± 0.39. Of the seven SLT recipients, Korean Network for Organ Sharing (KONOS) status was one in status 1, one in status 2 and five in status 3. The graft (P = 0.72) and patient (P = 0.84) survival rates were comparable in the SLT and WLT groups. Following propensity score matching, graft (P = 0.61) and patient (P = 0.91) survival rates remained comparable in the two groups. Univariate analysis showed that pretransplant ventilator support and renal replacement therapy were significantly associated with patient survival, whereas KONOS status category and primary liver diseases were not. Multivariate analysis showed that pretransplant ventilator support was an independent risk factor for patient survival.
Conclusion: Survival outcomes were similar in adult SLT and WLT recipients, probably due to selection of high-quality grafts and low-risk recipients. Prudent selection of donors and adult recipients for SLT may expand the liver graft pool for pediatric patients without affecting outcomes in adults undergoing SLT.
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KEYWORD
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Deceased Donor, Organ Donor Shortage, Extended Right Liver Graft, Whole Liver Graft
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