Pregnancy may slow -- not accelerate -- progressi...( A new study may help put to rest fea...),Health

A new study may help put to rest fears that pregnancy accelerates progression to full-blown AIDS in women with HIV receiving antiretroviral therapy. The study, published in the October 1st issue of the Journal of Infectious Diseases and now available online, revealed that pregnancy may, in fact, slow disease progression in these women.

Before the advent of highly active antiretroviral therapy (HAART), many women with HIV infection or AIDS were told that becoming pregnant would be unwise because there was thought to be a 25 percent risk of transmitting the virus to the child and that the effects of pregnancy on disease progression were unclear. It is now clear that the use of HAART in pregnancy can reduce the HIV transmission to the newborn to approximately 1 percent, but the effects of pregnancy on the HIV-infected woman remain unknown.

To determine the effects of pregnancy on HIV disease progression in the HAART era, Timothy R. Sterling, MD, and colleagues at Vanderbilt University performed an observational study of HIV-infected women between 1997 and 2004. Disease progression was defined as experiencing an AIDS-defining event such as Kaposis sarcoma, Pneumocystis carinii pneumonia, or Candida fungal infection of the esophagus; or death. Of the 759 women studied, 71 percent (540) were receiving HAART. Eighteen percent (139) of women studied had one or more pregnancy during this study.

Based on the results of studies conducted before HAART, researchers had expected there might be no difference in HIV disease progression between pregnant and non-pregnant women. What Sterling and colleagues found was that women who became pregnant actually had a lower risk of HIV disease progression and were healthier than women who did not become pregnant. Women experienced a lower risk of disease progression both before and after pregnancy. This may be a result of the healthier immune status of women who become pregnant and/or a beneficial interac
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