Abstract

BackgroundThe strength of the assumed association of CMV and long term deleterious events in solid organ transplant recipients (SOT) is controversial. ObjectivesThe aim of the present study was to evaluate whether viral replication dynamics during CMV infection or CMV disease may correlate not only with graft dysfunction and survival, but also with other potentially related late events in a long-term followed cohort of kidney (KT) and liver (LT) transplant recipients. Study design162 SOT (104 kidney, 58 liver) at our institution (2003–2005) with survival over 180 days and a median follow-up of 71 months (9–86) were analyzed. Using a Cox proportional hazard model, CMV infection (including area under the curve of DNAemia[AUC]) and CMV disease in the first 180 days were evaluated as potential predictors of the following late events (>180 days): mortality, graft dysfunction (GD), graft loss (GL), cardiovascular events (CVE), malignant tumors (MT). ResultsCMV infection occurred in 59% and CMV disease in 8%. Late death occurred in 17%, GD in 45.6%, GL in 14.2%, CVE in 10.5% and MT in 9.9%. We found no significant association between the intensity or duration of CMV viremia (AUC, persistent viremia or untreated CMV viremia) or CMV disease and the development of evaluated late events. According multivariate analysis neither CMV infection (hazard ratio [HR] 2.18 95% CI 0.949–5 p=0.066) nor CMV disease (HR: 1.72; 95% CI 0.59–5 p=0.31) were significantly correlated with late mortality. ConclusionsOur data do not support that CMV infection or CMV disease contribute significantly to long-term deleterious events in SOT.

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