• Transplantation · Nov 2019

    Multicenter Study

    Sarcopenia Predicts Post-transplant Mortality in Acutely Ill Men Undergoing Urgent Evaluation and Liver Transplantation.

    • Selena Z Kuo, Myra Ahmad, Michael A Dunn, Aldo J Montano-Loza, Elizabeth J Carey, Shezhang Lin, Akshata Moghe, Hui-Wei Chen, Maryam Ebadi, and Jennifer C Lai.
    • Department of Medicine, Division of Gastroenterology and Hepatology, University of California-San Francisco, San Francisco, CA.
    • Transplantation. 2019 Nov 1; 103 (11): 2312-2317.

    BackgroundWe examined the association between sarcopenia and post-transplant mortality in acutely ill inpatients with cirrhosis who underwent urgent liver transplantation.MethodsIncluded were inpatients at 4 centers who were urgently listed as nonstatus 1 and transplanted from 2005 to 2017 with an abdominal computed tomography scan <90 days before transplantation. Skeletal muscle index (SMI) = total skeletal muscle cross-sectional area at the L3 vertebral level, normalized to height. Cox regression associated SMI with post-transplant mortality. Optimal search identified SMI cutoffs to detect survival.ResultsOf 126 inpatients, 63% were male patients, model for end-stage liver disease (MELDNa) was 32, and follow up was 5.1 years. Among men, 23% died. Median SMI was lower in men who died versus survived (45 versus 51 cm/m). SMI was associated with post-transplant mortality (hazard ratio [HR] = 0.96 per cm/m, 95% CI 0.92-0.99). Patients with SMI ≤ 48 cm/m versus >48 cm/m experienced higher rates of death at 1 year (86% versus 95%) and 3 years (73% versus 95%) (Log-rank P = 0.01). In MELD-adjusted analysis, sarcopenia was strongly associated with post-transplant mortality (HR = 4.39, 95% CI 1.49-12.97). Among women, 35% died. Median SMI was similar in women who died versus survived (45 versus 44 cm/m). SMI was not associated with post-transplant mortality (HR = 1.02, 95% CI 0.96-1.09). Optimal search did not identify any SMI cutoff that predicted post-transplant mortality.ConclusionsAmong patients who underwent urgent inpatient evaluation and liver transplantation, we identified an SMI cutoff value of 48 cm/m to predict post-transplant mortality in men. Our data support the use of SMI as a tool to capture the impact of muscle depletion on post-transplant mortality in acutely ill men with cirrhosis undergoing urgent liver transplantation.

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