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  • Title: High incidence of ganciclovir-resistant cytomegalovirus infection among lung transplant recipients receiving preemptive therapy.
    Author: Limaye AP, Raghu G, Koelle DM, Ferrenberg J, Huang ML, Boeckh M.
    Journal: J Infect Dis; 2002 Jan 01; 185(1):20-7. PubMed ID: 11756977.
    Abstract:
    Preemptive antiviral therapy in transplant patients is thought to be less likely to lead to antiviral resistance than is routine prophylaxis. Cytomegalovirus (CMV)-seropositive lung transplant patients (R+) were assigned to receive pp65 antigen-guided ganciclovir therapy, and seronegative recipients of organs from seropositive donors (D+/R-) were assigned to receive initially preemptive and then routine ganciclovir prophylaxis. The incidence of infection with ganciclovir-resistant (ganR) CMV was assessed retrospectively. GanR CMV infection developed in 4 (9%) of 45 patients, at a median of 4.4 months (range, 3.1-6.6 months) after transplantation, and was more common among D+/R- patients than among R+ patients (3 of 11 vs. 1 of 34; P =.04). The incidence among patients who received preemptive therapy was similar to that among patients who received routine prophylaxis. All ganR isolates contained a UL97 mutation. GanR CMV infection occurs in nearly 10% of lung transplant recipients, despite preemptive antiviral therapy, and is more common among D+/R- patients.
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