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Pretransplant diabetes mellitus predicts worse outcomes of liver transplantation: evidence from meta-analysis

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Abstract

Background

It has been demonstrated that the prognosis of liver transplantation (LT) is significantly influenced by pretransplant factors, such as diabetes mellitus (DM). However, inconsistent observations are obtained.

Methods

We comprehensively searched PubMed, Embase and Web of Science to identify eligible cohort studies to evaluate the impact of preexisting DM on LT prognosis. Overall mortality and graft loss, as the most frequently observed parameters, were used to evaluate the outcomes of LT. Hazard ratios (HRs) with their 95% confidence intervals (CIs) were pooled to assess the effect of DM.

Results

15,768 diabetic LT recipients and 60,176 non-diabetic LT recipients from 13 populations were included in this meta-analysis. Preexisting DM increased the risk for overall death of LT by 40% (95% CI 1.22–1.61), compared with DM-free patients. In addition, the risk for graft loss was also elevated by pretransplant DM (HR 1.28, 95% CI 1.07–1.54). Both analyses showed high heterogeneities (I 2 = 85.2 and 93.2%, respectively) and their sources were not identified by meta-regression analyses. In terms of the additive effect of hepatitis C virus (HCV) infection on poor outcomes of diabetic LT recipients, stratified meta-analyses were conducted. It was demonstrated that HCV infection increased the risk for mortality by 73% (95% CI 1.64–1.83), relatively higher than non-HCV recipients (HR 1.32, 95% CI 1.25–1.39) and general population (HR 1.40, 95% CI 1.22–1.61).

Conclusion

Preexisting DM predicts worse patient and graft survivals of LT. Concomitant HCV infection would further deteriorate this unfavorable impact. Given the high heterogeneities and the insufficient evidences, more studies are still warranted to support these observations.

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Authors and Affiliations

  1. Department of Hepatobiliary Surgery, Beijing Chaoyang Hospital Affiliated to Capital Medical University, 8 Gongren Tiyuchang Nanlu, Chaoyang District, Beijing, 100020, China

    P. Li, H. Fan & Q. He

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  1. P. Li
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  2. H. Fan
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  3. Q. He
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Correspondence to Q. He.

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Li, P., Fan, H. & He, Q. Pretransplant diabetes mellitus predicts worse outcomes of liver transplantation: evidence from meta-analysis. J Endocrinol Invest 41, 211–221 (2018). https://doi.org/10.1007/s40618-017-0721-z

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  • DOI: https://doi.org/10.1007/s40618-017-0721-z

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