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  • Title: Cytomegalovirus infection in high-risk kidney transplant recipients receiving thymoglobulin induction-a single-center experience.
    Author: Puttarajappa C, Bhattarai M, Mour G, Shen C, Sood P, Mehta R, Shah N, Tevar AD, Humar A, Wu C, Hariharan S.
    Journal: Clin Transplant; 2016 Sep; 30(9):1159-64. PubMed ID: 27423138.
    Abstract:
    BACKGROUND: The burden of cytomegalovirus infection in CMV high-risk (donor positive to recipient negative) kidney transplant recipients getting thymoglobulin induction and six months of valganciclovir is not well characterized. Additionally, the role of post-prophylaxis surveillance remains unclear. METHODS: One-year observational study of forty-eight high-risk CMV kidney transplant recipients transplanted under thymoglobulin between January 2013 and July 2014. All received valganciclovir for six months, followed by monthly CMV PCR for three months. RESULTS: CMV infection defined as viremia with or without symptoms occurred in 40% (19/48). Of these, 47% (9/19) occurred during prophylaxis, 32% (6/19) during surveillance and 21% (4/19) during post-surveillance period (9-12 months). Among breakthrough infections, suboptimal valganciclovir dosing was present in 55% (5/9). With routine surveillance, there was a trend toward lower CMV-related hospitalization (17% vs 56% and 75% during prophylaxis and post-surveillance, respectively [P=.23]) and lower mean peak viral loads (19 432 copies/mL vs 97 925 copies/mL and 536 021 copies/mL during prophylaxis and post-surveillance, respectively [P=.07]). CONCLUSION: CMV infection remains a significant problem with thymoglobulin induction despite six months of valganciclovir. Suboptimal valganciclovir dosing was common among breakthrough infections. Monthly surveillance post-prophylaxis appears to detect early CMV infection with lower degree of viremias requiring fewer hospitalizations.
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