2.5.6 Mode of delivery

Elective cesarean sections prior to rupture of membranes can reduce MTCT in HIV-positive women who are not receiving ART.124,125 For women receiving ART, however, cesarean sections do not decrease the risk of MTCT. Recent data from PACTG 367 indicate that transmission rates are significantly lower when multi-agent therapy is being administered and when lower maternal plasma HIV RNA levels are observed; rates do not differ significantly according to mode of delivery.126 Cesarean sections should therefore be reserved for women who are likely to have a detectable viral load at the time of labor—that is, those women who are not receiving effective ART or who demonstrate nonadherence during pregnancy—and women who have an obstetric indication for a cesarean section. This stipulation is particularly important given that women with HIV infection may be at increased risk of febrile complications after a cesarean section.127,128