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  • Title: Immune-mediated graft dysfunction in liver transplant recipients with hepatitis C virus treated with direct-acting antiviral therapy.
    Author: Chan C, Schiano T, Agudelo E, Paul Haydek J, Hoteit M, Laurito MP, Norvell JP, Terrault N, Verna EC, Yang A, Levitsky J.
    Journal: Am J Transplant; 2018 Oct; 18(10):2506-2512. PubMed ID: 30075485.
    Abstract:
    Interferon treatment of hepatitis C virus (HCV) infection after liver transplantation (LT) can result in immune-mediated graft dysfunction (IGD). The occurrence of, risk factors for, and outcomes of IGD with direct-acting antiviral (DAA) therapy have not been reported. We conducted a multicenter study of HCV+LT recipients who did or did not develop DAA-IGD (1 case: 2 controls-33 vs 66). Among all treated between 2014 and 2016, DAA-IGD occurred in 3.4% (33/978). IGD occurred only after treatment completion (76.0 [IQR, 47.0;176]). Among those treated, 48% had plasma cell hepatitis, 36% acute cellular rejection, 6% chronic rejection, and 9% combined findings. Median time to liver enzyme resolution was 77.5 days (IQR, 31.5;126). After diagnosis, hospitalizations, steroid-induced hyperglycemia, and infection occurred in a higher percentage of cases vs controls (33% vs 7.5%, 21% vs 1.5%, 9% vs 0%; all P < .05). Only one IGD patient died and none required retransplant. A multivariate regression analysis found that liver enzyme elevations during and soon after DAA therapy completion correlated with subsequent IGD. In conclusion, while DAA-IGD is uncommon, liver enzyme elevations during or after DAA therapy may be a sign of impending IGD. These indicators should guide clinicians to diagnose and treat IGD early before the more deleterious later clinical presentation.
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