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Review
. 2019 May;17(5):363-373.
doi: 10.1080/14787210.2019.1607297. Epub 2019 Apr 24.

The direct and indirect effects of vancomycin-resistant enterococci colonization in liver transplant candidates and recipients

Sara Belga  1 , Diana Chiang  1 , Dima Kabbani  1 , Juan G Abraldes  2 , Carlos Cervera  1
Affiliations
Review

The direct and indirect effects of vancomycin-resistant enterococci colonization in liver transplant candidates and recipients

Sara Belga et al. Expert Rev Anti Infect Ther. 2019 May.

Abstract

Introduction: Vancomycin-resistant enterococci (VRE) colonization and subsequent infection results in increased morbidity, mortality and use of health-care resources. The burden of VRE colonization in liver transplant candidates and recipients is significant. VRE colonization is a marker of gut dysbiosis and its impact on the microbiota-liver axis, may negatively affect graft function and result in negative outcomes pre- and post-transplantation. Areas covered: In this article we describe the epidemiology of VRE colonization, risk factors for VRE infection, health-care costs associated with VRE, with a focus on the impact of VRE colonization on liver transplant recipients' fecal microbiota, the therapeutic strategies for VRE decolonization and proposed pathophysiologic mechanisms of VRE colonization in liver transplant recipients. Expert opinion: VRE colonization results in a significant loss of bacterial microbiome diversity. This may have metabolic consequences, with low production of short-chain fatty acids which may, in turn, result in immune dysregulation. As antibiotics have failed to decolonize the gut, alternative strategies such as fecal microbiota transplantation (FMT), stimulation of intestinal antimicrobial peptides and phage therapy warrants future studies.

Keywords: Liver transplantation; dysbiosis; fecal microbiota transplantation; vancomycin-resistant enterococcus.

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