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AIDS. 2009 Jan 2;23(1):117-24. doi: 10.1097/QAD.0b013e32831c8abd.

The detection of cytomegalovirus DNA in maternal plasma is associated with mortality in HIV-1-infected women and their infants.

Author information

  • 1MRC Human Immunology Unit, Oxford University, Oxford, UK. jslyker@u.washington.edu

Abstract

OBJECTIVE:

Cytomegalovirus (CMV) is an important pathogen in healthy neonates and individuals with human immunodeficiency virus (HIV-1). The objective of this study was to determine whether the detection of CMV DNA (CMV DNAemia) in maternal plasma was associated with mortality in HIV-1-infected women or their infants.

METHODS:

A longitudinal study was designed to examine the relationship between maternal CMV DNAemia and maternal-infant mortality during 2 years postpartum. Sixty-four HIV-1-infected women and their infants were studied. CMV DNA loads were quantified in plasma from the mothers near the time of delivery. Baseline maternal CD4 cell counts, CD4%, HIV-1 RNA, and CMV DNAemia were evaluated as covariates of subsequent maternal or infant mortality in univariate and multivariate Cox regression.

RESULTS:

CMV DNA was detected in 11/64 (17%) of the HIV-1-infected women. HIV-1 and CMV viral load were strongly correlated in CMV DNAemic women (rho = 0.84, P = 0.001). Detection of CMV DNAemia was associated with decreased maternal survival at 24 months postpartum (log-rank P = 0.006). Additionally, HIV-1-infected infants born to CMV DNAemic women had a four-fold increased risk of mortality during 24 months of follow-up. Maternal CMV DNAemia remained a significant risk factor for mortality in HIV-1-infected infants after adjusting for maternal CD4 cells/microl [adjusted hazard ratio (HR) = 4.3, confidence interval (CI) = 1.4-13], CD4% (HR = 3.2, CI = 1.0-10), HIV-1 viral load (HR = 4.1, CI = 1.4-12) or maternal death (HR = 3.7, CI = 1.0-13).

CONCLUSION:

Maternal plasma CMV DNAemia identified a subgroup of Kenyan women and infants at high risk for death in the 2 years following delivery.

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