The objective of the study was to evaluate the influence of pregnancy on the level of adherence with antiretroviral (ARV) drugs, in a prospective cohort of 72 pregnant women and 79 non-pregnant women. Adherence was measured by pill counting and self-reporting. Women were deemed adherent if 95% or more of all ARV had been taken as prescribed, in two occasions. According to pill counting, 43.1 and 17.7% of pregnant and non-pregnant women, respectively, met the criteria of adherence (P = 0.001); in the postpartum, adherence declined to 20.6% (P = 0.002). In both groups, adherence rates by self-reporting were significantly higher as compared with pill counting (P = 0.001). In multivariate regression analysis, age >29 years (odds ratio [OR] 3.58, confidence interval [CI] 95% 0.10-0.75, P = 0.011), mean number of pills/day <6 (OR 2.53, CI 95% 1.07-6.01, P = 0.035), and being pregnant (OR 3.33, CI 95% 1.36-8.13, P = 0.008) were independently associated to greater adherence.

Objective: To identify the rate of vertical transmission of HIV and assess the factors involved in maternal and fetal share. Methods: Cross-sectional study conducted in the Specialized Care Service. We investigated 102 clinical records of HIV positive women who had given birth to live newborns. The primary variable was the occurrence of vertical transmission of HIV and the secondary variables were the factors associated with vertical transmission of HIV. Results: Prevalence of 6.6% of vertical transmission. Among the infected children: 40.0% of mothers with out prenatal care and 75% without prophylaxis with antiretroviral drugs during the prenatal, 50.0% without AZT prophylaxis with oral and breast-fed. Among the uninfected children: 91.5% were started on prophylaxis with oral AZT at birth and 84.1% of mothers received ARV delivery. Conclusion: The occurrence of vertical transmission of HIV in the reference service corresponded to 6.6%, indicating a high prevalence. ResumoObjetivo: Identificar a taxa de transmissão vertical do HIV e avaliar os fatores envolvidos em partes materna fetal. Métodos: Estudo transversal realizado no Serviço de Atendimento Especializado. Foram investigados 102 prontuários de mulheres com HIV que deram à luz a recém-nascidos vivos. Resultados: A prevalência de 6,6% de transmissão vertical. Entre as crianças infectadas: 40,0% de mães sem pré-natal e 75% sem a profilaxia com anti-retrovirais durante o pré-natal, 50,0% sem profilaxia com AZT com oral e amamentado. Entre as crianças não infectadas: 91,5% iniciaram a profilaxia com AZT oral ao nascimento e 84,1% das mães receberam ARV. Conclusão: A ocorrência de transmissão vertical do HIV no serviço de referência correspondeu a 6,6%, o que indica uma alta prevalência.

HIV mother-to-child transmission (MTCT) is significantly reduced if antepartum viral load (apVL) is < 50 copies/mL. Pharmacokinetic studies suggest increasing the dosage of lopinavir/ritonavir (LPV/r) in pregnancy. It is important to assess tolerance, safety, and rate of patients presenting a apVL < 50 copies/mL when treating with increased dose of LPV/r during pregnancy. Confirmed HIV-infected pregnant women with a fetus at a gestational age of 14-33 weeks were randomly assigned to receive LPV/r 400/100 or 600/150 mg b.i.d. plus two nucleoside analogues (NRTIs). Treatment was discontinued in the case of alanine transaminase (ALT) of grade III elevation or higher, glucose, or triglycerides. Thirty-two women were randomized to the LPV/r 400/ 100 mg dose, and 31 women were randomized to the 600/150 mg dose. Overall, 9.4% of the women receiving the conventional dose, and 17.2% receiving the increased dose, discontinued treatment because of adverse events ( p = 0.29). The rates of gastrointestinal (GI) symptoms, laboratory abnormalities, preterm delivery, and low birth weight were similar in both groups. There were no cases of HIV MTCT. Among the women with a baseline VL > 50 copies/mL assigned to the conventional dose group, 45% (95% confidence interval [CI] 62.5-27.5%) had a apVL > 50 copies/mL compared with 10.5% (95% CI 21.6-0.6%) of those assigned to the increased dose group ( p = 0.01). There was no significant difference found for the patients with a baseline VL < 50 copies/mL. In pregnant women with a baseline VL > 50 copies/mL, it may be warranted to initiate LPV/r dosing at 600/ 150 mg, whereas the conventional dose is sufficient for pregnant women with a baseline VL < 50 copies/mL.

BackgroundShort-term antiretroviral therapy (START) to prevent mother-to-child transmission (MTCT) is currently recommended for all HIV-1-infected pregnant women. The objective of this study was to assess the effect on CD4 cell counts and viral load dynamics the withdrawal of START after birth could generate. MethodsThis was a 5-year cohort study involving HIV-1-infected pregnant women who presented with CD4 counts 4300 cells/mL and had received START to prevent MTCT. ResultsSeventy-five pregnancies were assessed. In 24 cases, there was a history of antiretroviral therapy prior to prophylaxis. The median baseline CD4 count was 573 cells/mL. In 75% of cases, prophylaxis was started after 26.6 weeks of gestation. The median CD4 cell count increase over baseline during prophylaxis was 24.5%. In only five cases did HIV-1 viral load remain detectable during prophylaxis. After START, CD4 cell counts did not drop significantly, and the HIV-1 viral load plateau was near the baseline level. The estimated mean time for CD4 count to fall below 300 cells/mL was 3.5 years and was directly associated with high baseline CD4 cell count, as well as with CD4 increase after prophylaxis, whereas it was negatively correlated with previous use of antiretroviral (ARV) drugs and persistence of detectable HIV-1 viral load during prophylaxis. ConclusionsA potent, well-tolerated prophylactic ARV regimen can improve CD4 cell counts during and after START. In women receiving such prophylaxis, there is a remarkable time interval for CD4 cell counts to drop to levels that indicate treatment.