Should women with human immunodeficiency virus be delivered by cesarean?

Vertical transmission of human immunodeficiency virus (HIV) accounts for most new pediatric cases in the United States. With the routine use of zidovudine in the antepartum, intrapartum, and postnatal periods, transmission of HIV from mother to infant has decreased significantly during the past 5 years. Most transmission occurs during labor and delivery, so the effect of mode of delivery recently has been investigated. Several studies support cesarean to further reduce infection in newborns. However, those studies are limited by lack of data on concomitant effects of viral load and effects of combined antiretroviral therapy. There also might be increased operative morbidity in this population. Therefore, we suggest caution in establishing cesarean as a standard for delivery of HIV-infected women.