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Τετάρτη 6 Δεκεμβρίου 2017

Comparison of Preemptive Therapy and Antiviral Prophylaxis for Prevention of Cytomegalovirus in Seropositive Liver Transplant Recipients

Background Few studies have directly compared preemptive therapy (PET) and antiviral prophylaxis (AP) for prevention of cytomegalovirus disease in CMV seropositive (R+) orthotopic liver transplant (OLT) recipients. Methods We prospectively assessed CMV disease and clinical outcomes among 160 consecutive R+ OLT recipients who received PET (weekly plasma CMV PCR for 3 months, oral valganciclovir 900 mg twice daily for CMV viremia >250 IU/mL, until 2 consecutive negative weekly PCR results) and compared them to a historical cohort of 156 R+ recipients who received AP (valganciclovir 900 mg daily for 3 months). Results Patient characteristics were similar between PET and AP cohorts (p>0.05 all comparisons). In the PET group, 24% (39/160) developed CMV viremia >250 IU/mL at a median of 42 (range 7-93) days post-OLT. CMV monitoring adherence in the PET cohort was 85% (1488/1760 required tests) and 86% (30/36) initiated PET within 3 days of the CMV result. By 12 months post-OLT, the incidence of CMV disease, acute allograft rejection, major infection, or death in the PET and AP cohorts was not significantly different: 2% vs 2%, 19% vs 16%, 10.5% vs 10.8%, and 5% vs 8%, respectively (p > 0.05 all comparisons). The estimated proportion of drug-exposed patients and average antiviral drug exposure were significantly lower with PET vs AP: 24% vs 100%, p

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