Cytomegalovirus infection after kidney transplantation and long-term graft loss

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Background: Despite the use of prevention strategies, cytomegalovirus (CMV) infection is the most common viral complication after renal transplant and its impact on long-term outcomes is still open to debate. Objective: To evaluate the incidence of CMV infection and disease during the use of prevention strategies in our centre and to analyse the association between CMV infection and long-term patient and graft survival and other potentially clinical events related with CMV. Methods: We reviewed the medical records of 377 recipients of kidney transplants performed between January 1998 and December 2008. Kaplain-Meier survival curve analysis was performed to analyse graft and patient survival by CMV infection/disease and Cox proportional hazards regression was used to identify factors associated with CMV infection/disease, graft loss and mortality. Results: The incidence of CMV infection was 34.7% and CMV disease was 9.5%. Patient and graft survival was significantly lower in patients with CMV infection/disease. CMV infection/disease was associated with a higher risk of graft loss (HR 1.91, 95% CI 1.09–3.36, p = 0.023), but not with a higher mortality (HR 1.29, 95% CI 0.7–2.38, p = 0.4). Conclusion: CMV replication after renal transplant is a risk factor for long-term graft loss but not mortality. Prevention strategies decrease post-transplant CMV infection and disease.




López-Oliva, M. O., Flores, J., Madero, R., Escuin, F., Santana, M. J., Bellón, T., … Jiménez, C. (2017). Cytomegalovirus infection after kidney transplantation and long-term graft loss. Nefrologia, 37(5), 515–525.

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