Impact of Donor Age on Recipient Survival in Adult-to-Adult Living-donor Liver Transplantation

Toyonari Kubota, Koichiro Hata, Takashi Sozu, Yoshihide Ueda, Hirofumi Hirao, Yusuke Okamura, Ichiro Tamaki, Junichi Yoshikawa, Jiro Kusakabe, Hirokazu Tanaka, Shoichi Kageyama, Takayuki Anazawa, Atsushi Yoshizawa, Shintaro Yagi, Noriyo Yamashiki, Hideaki Okajima, Toshimi Kaido, Shinji Uemoto

Research output: Contribution to journalArticlepeer-review

25 Citations (Scopus)

Abstract

Objective: To investigate the influence of donor age on recipient outcome after living-donor partial liver transplantation (LDLT). Background: Donor age is a well-known prognostic factor in deceased donor liver transplantation; however, its role in LDLT remains unclear. Methods: We retrospectively analyzed 315 consecutive cases of primary adult-to-adult LDLT in our center between April 2006 and March 2014. Recipients were divided into 5 groups according to the donor age: D-20s (n = 60); D-30s (n = 72); D-40s (n = 57); D-50s (n = 94); and D-60s (n = 32). The recipient survival and the association with various clinical factors were investigated. Results: Recipient survival proportions were significantly higher in D-20s compared with all the other groups (P = 0.008, < 0.001, < 0.001, and = 0.006, vs D-30s, -40s, -50s, and -60s, respectively), whereas there was no association between recipient survival and their own age. There are 3 typical relationships between donors and recipients in adult-to-adult LDLT: from child-to-parent, between spouses/siblings, and from parent-to-child. The overall survival in child-to-parent was significantly higher than in spouses/siblings (P = 0.002) and in parent-to-child (P = 0.005), despite significantly higher recipient age in child-to-parent [59 (42-69) years, P < 0.001]. Contrastingly, parent-to-child exhibited the lowest survival, despite the youngest recipient age [26 (20-43) years, P < 0.001]. In addition, younger donor age exhibited significantly better recipient survival both in hepatitis C virus-related and in non-hepatitis C virus diseases. Univariate and multivariate analyses both demonstrated that donor age and graft-type (right-sided livers) are independent prognostic factors for recipient survival. Conclusions: Donor age is an independent, strong prognostic factor in adult-to-adult LDLT.

Original languageEnglish
Pages (from-to)1126-1133
Number of pages8
JournalAnnals of Surgery
Volume267
Issue number6
DOIs
Publication statusPublished - 01-06-2018
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Surgery

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