4.7 Article

Allograft liver failure awaiting liver transplantation in Japan

期刊

JOURNAL OF GASTROENTEROLOGY
卷 57, 期 7, 页码 495-504

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SPRINGER JAPAN KK
DOI: 10.1007/s00535-022-01880-w

关键词

Liver re-transplantation; Hepatitis C virus; Primary sclerosing cholangitis; Recurrence; Transplant-free survival

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This study aimed to clarify the characteristics and prognostic factors of patients with allograft liver failure awaiting deceased donor liver transplantation in Japan. It was found that recurrent HCV and PSC were major causes of allograft liver failure, and additional factors such as age, CTP score, MELD score, ALT levels, and causes of allograft failure were identified as independent risk factors associated with waitlist mortality.
Background Following liver transplantation (LT), allograft liver failure can be developed by various causes and requires re-LT. Hence, this study aimed to clarify the characteristics and prognostic factors of patients with allograft liver failure awaiting deceased donor LT (DDLT) in Japan. Methods Of the 2686 DDLT candidates in Japan between 2007 and 2016, 192 adult patients listed for re-LT were retrospectively enrolled in this study. Factors associated with waitlist mortality were assessed using the Cox proportional hazards model. The transplant-free survival probabilities were evaluated using the Kaplan-Meier analysis and log-rank test. Results The median period from the previous LT to listing for re-LT was 1548 days (range, 4-8449 days). Primary sclerosing cholangitis (PSC), which was a primary indication, showed a higher listing probability for re-LT as compared with other primary etiologies. Recurrent liver disease was a leading cause of allograft failure and was more frequently observed in the primary indication of hepatitis C virus (HCV) infection and PSC in contrast with other etiologies. Multivariate analysis identified the following independent risk factors associated with waitlist mortality: age, Child-Turcotte-Pugh (CTP) score, mode for end-stage liver disease (MELD) score, alanine aminotransferase (ALT), and causes of allograft failure. Conclusions Recurrent HCV and PSC were major causes of allograft liver failure in Japan. In addition to CTP and MELD scores, either serum ALT levels or causes of allograft failure should be considered as graft liver allocation measures.

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