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Clin Infect Dis. 2001 Oct 15;33(8):1358-62. Epub 2001 Sep 20.

Association of human herpesvirus 6 reactivation with severe cytomegalovirus-associated disease in orthotopic liver transplant recipients.

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Department of Medicine, New England Medical Center, Boston, MA 02111, USA.


To explore the possible interaction between human herpesvirus 6 (HHV-6) and cytomegalovirus (CMV) in patients who have undergone organ transplantation, stored serum samples from 139 orthotopic liver transplant recipients were tested for HHV-6 immunoglobulin (Ig) G and IgM antibodies. HHV-6 reactivation occurred in 87 patients (62.6%) and was associated with CMV disease (P=.01), severe CMV-associated disease (P=.01), older age (P=.005), and use of muromonab-CD3 (Orthoclone; Orthobiotech) as treatment for rejection (P=.02). Trends for an association between HHV-6 reactivation and invasive fungal disease (P=.12), bacteremia (P=.10), and graft loss (P=.12) were seen. In a multivariate analysis of risk factors for severe CMV-associated disease, HHV-6 reactivation (relative risk [RR], 3.5; 95% confidence interval [CI], 1.2-10.2; P=.02), CMV donor-positive-recipient-negative match (RR, 5.7; 95% CI, 2.5-13.2; P<.001), and elevated serum creatinine level (P<.0001) were independent predictors. HHV-6 reactivation is associated with severe CMV-associated disease in liver transplant recipients.

[Indexed for MEDLINE]

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