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  • Title: Risk factors for treatment failures in patients receiving PCR-based preemptive therapy for CMV infection.
    Author: Einsele H, Hebart H, Kauffmann-Schneider C, Sinzger C, Jahn G, Bader P, Klingebiel T, Dietz K, Löffler J, Bokemeyer C, Müller CA, Kanz L.
    Journal: Bone Marrow Transplant; 2000 Apr; 25(7):757-63. PubMed ID: 10745262.
    Abstract:
    PCR-based preemptive therapy with ganciclovir has been shown to reduce the incidence of CMV disease after BMT. Failures of this treatment strategy are CMV disease and secondary non-viral infections. Eighty-six consecutive patients at high risk for CMV disease who received PCR-based preemptive therapy with ganciclovir were assessed for treatment failures and possible risk factors. Ganciclovir was initiated in 57 of 86 patients (66%). Only 28 of 86 (32%) patients received 4 or more weeks of ganciclovir. Recurrence of CMV infection after successful treatment was more frequent among recipients of a BMT from an unrelated compared to a sibling donor (P = 0.004). Three (3.5%) patients developed non-fatal early onset CMV disease and seven of 68 (10.3 %) late onset CMV disease (>100 days post transplant). Risk factors for late onset CMV disease were cGVHD (P = 0.0017) and duration of prior antiviral therapy >4 weeks (P = 0. 0073). The incidence of secondary non-viral infections was 28% with the duration of antiviral treatment being a significant risk factor for secondary bacterial (P = 0.0045) and invasive fungal infections (P = 0.006). Thus, PCR-based preemptive treatment with ganciclovir reduces early onset CMV disease, but the duration of antiviral therapy prior to day +100 is a significant risk factor for late onset CMV disease as well as secondary non-viral infections.
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