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  • Title: Cytomegalovirus disease in kidney transplant recipients: incidence, clinical profile, and risk factors.
    Author: Cordero E, Casasola C, Ecarma R, Danguilan R.
    Journal: Transplant Proc; 2012 Apr; 44(3):694-700. PubMed ID: 22483471.
    Abstract:
    BACKGROUND: Cytomegalovirus (CMV) is one of the most frequently encountered opportunistic viral pathogens in renal transplantation. Approximately 60% of transplant recipients will have CMV infection and >20% will develop symptomatic disease. With the advancement of immunosuppression, variation in the occurrence and pattern of infections is possible. We described the incidence, clinical profile, outcome, and risk factors for development of CMV disease among renal transplant recipients. PATIENTS AND METHODS: We studied patients who underwent transplantation from January 2005-December 2009 admitted for CMV disease. CMV infection was present if the patient had at least 1 of the following: positive early antigen detection in blood or tissues, positive CMV antigenemia, or a 4-fold increase in pretransplantation CMV antibody titer. CMV disease was diagnosed if CMV infection was accompanied by clinical signs and symptoms. Descriptive statistics included measures of central tendency for continuous numerical variables and percentage-frequency distribution for categorical variables z test, Wilcoxon-Mann-Whitney test, and Fisher exact test were used to determine risk factors for CMV disease. RESULTS: About 1502 renal transplantations were done during the study period with mean follow-up of 33.8 months. CMV disease was confirmed in 85 (5.8%) recipients who developed 88 CMV disease episodes. Of the 85 patients who had CMV disease, 55% developed ≤ 3 months posttransplantation. Fever was the most common presenting symptom, 53% had coinfection, and case fatality rate was 11%. Risk factors that were statistically significant in the development of CMV disease were as follows: recipient/donor relationship (P = .0115), CMV donor+/recipient- (P = .004), and recent rejection treatment (P = .0084). CONCLUSION: Incidence of CMV disease was 5.8% with fever as the most common presenting symptom and 55% developed CMV disease ≤ 3 months posttransplantation. Coinfection occurred in 53% and case fatality rate in 11%. Risk factors for developing CMV disease included CMV donor+/recipient- and recent acute rejection treatment.
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