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  • Title: Monitoring of human Cytomegalovirus infection by antigenemia and viremia in the first 100 days following renal transplantation and relation to antiviral strategies.
    Author: Terlizzi ME, Costa C, Astegiano S, Sidoti F, Vendrame R, Segoloni GP, Bergallo M, Cavallo R.
    Journal: Minerva Med; 2008 Jun; 99(3):231-9. PubMed ID: 18497721.
    Abstract:
    AIM: Human Cytomegalovirus (HCMV) is a relevant pathogen in transplant recipients, particularly in the first three months post-transplantation. The use of antiviral prophylaxis and pre-emptive therapy is able to reduce incidence of HCMV infection and disease. The incidence of HCMV infection and disease in renal transplant recipients in the first 100 days post-transplantation was investigated, in relation with HCMV serological matching and therapeutic management. METHODS: Incidence of HCMV infection in the first 100 days post-transplantation was evaluated by pp65-antigenemia in 165 patients on a total number of 1241 clinical samples. Patients were divided in four groups according to donor/recipient serological matching: D(-)/R(-) (low risk of HCMV disease), D(-)/R+ and D+/R+ (intermediate risk) and D+/R(-) (high risk). Antiviral strategy (prophylaxis in high risk group; pre-emptive therapy in intermediate risk group, no therapy in low risk group) and immunosuppressive protocol were recorded. RESULTS: Incidence of antigenemia-positivity was as follows: 0/3 D(-)/R(-) patients; 59/130 (45.4%) D+/R+; 5/16 (31.3%) D(-)/R+; 4/16 D+/R(-). No significative difference was found between the four groups in terms of incidence of antigenemia-positivity in the first 100 days following transplantation. Antigenemia values >50 pp65-positive/2x10(5) peripheral blood leukocytes (used to start pre-emptive therapy) were present in 18/130 (13.8%) D+/R+; 1/16 (6.2%) D+/R(-); 0/16 D(-)/R+. Viral kinetics in patients with HCMV infection was described. CONCLUSION: No significative difference was found in terms of incidence of HCMV infection in the first 100 days post-transplantation in relation to immunosuppressive protocol and serological matching, suggesting the appropriateness of antiviral strategies and viral monitoring adopted in this setting.
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