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  • Title: Late Persistent Positive EBV Viral Load and Risk of Solid Cancer in Kidney Transplant Patients.
    Author: Bamoulid J, Courivaud C, Coaquette A, Crépin T, Carron C, Gaiffe E, Roubiou C, Rebibou JM, Ducloux D.
    Journal: Transplantation; 2017 Jun; 101(6):1473-1478. PubMed ID: 27367471.
    Abstract:
    BACKGROUND: Recent studies reported that posttransplant Epstein-Barr virus (EBV) replication is frequent and indicates overimmunosuppression. We hypothesized that long-term EBV replication may identify overimmunosuppressed patients at higher risk of cancer. METHODS: We analyzed a prospective cohort of renal transplant recipients having routine EBV PCR surveillance. All cancers (except EBV-related neoplasia) were recorded. RESULTS: Mean follow up was 94 + 23 months. Samples (8412) were available in 669 patients. Three hundred eighty-eight of the 669 patients (58%) had at least 1 positive viremia during follow-up.Epstein-Barr virus D+/R- patients (P = 0.046) as well as those having received antithymocyte globulin (P < 0.001) were more likely to develop persistent EBV viremia. Eighty-six patients (12.9%) developed a cancer during follow-up. The cumulated incidence of cancer was higher in patients with persistent high EBV replication (22.4% vs 10.2%, P = 0.005). The effect of persistent EBV infection remained significant even after adjustment for all confounding factors (hazard ratio, 1.69; 95% confidence interval, 1.10-2.61; P = 0.018). Age, history of antithymocyte globulin use, smoking, and history of cancer were also associated with cancer occurrence. CONCLUSIONS: Persistent high EBV viral load is associated with the occurrence of solid cancer. In this setting, more intensive screening and/or minimization of immunosuppressive treatment are probably required.
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