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Medicina (B.Aires) ; 71(5): 432-436, oct. 2011. tab
Article in English | LILACS | ID: lil-633892

ABSTRACT

Data regarding epidemiological aspects, antiretroviral drug safety, and outcomes of HIV-infected pregnant women and their newborns are limited in Argentina. We underwent a retrospective analysis of registries of HIV-infected pregnant women assisted at Helios Salud, Buenos Aires, Argentina (1997-2006). Variables associated with preterm delivery and neonatal complications were analyzed by univariate and logistic regression analyses. A total of 204 mother-child binomium were included. Maternal age (median): 29 years; 32.5% without prior diagnosis of HIV-infection. Baseline median CD4 T-cell count: 417 cell/μl; 98% received antiretroviral drugs during pregnancy [2 nucleoside analogs plus either nevirapine (55%) or a protease inhibitor (32%)]. Overall incidence of toxicity was 12.5%: rash (8%), anemia (3.5%) and hepatotoxicity (1%). Rash was associated with exposure to nevirapine. Eighty one percent and 50% reached HIV-viral loads <1000 and <50 copies/ml at the end of pregnancy, respectively. Twenty six percent had obstetric complications and 16% had preterm delivery. Of the newborns, 1.6% had congenital defects and 9% had neonatal complications. Overall neonatal mortality was 1% and perinatal transmission was 0.7%. Protease inhibitor use and obstetric complications were associated to preterm delivery while obstetric complications were associated with neonatal complications. In our population, hepatotoxicity was low despite frequent use of nevirapine. Protease inhibitor use was associated to preterm delivery. A favorable virological response and a low rate of perinatal transmission was observed, what supports the consensus that antiretroviral therapy benefits during pregnancy outweigh risks of maternal and neonatal adverse events.


La información sobre aspectos epidemiológicos, seguridad de drogas antirretrovirales y evolución de mujeres embarazadas HIV positivas y sus hijos es limitada en la Argentina. Realizamos un análisis retrospectivo de registros de embarazadas HIV positivas asistidas en Helios Salud, Buenos Aires, Argentina (1997-2006). Las variables asociadas con parto prematuro y complicaciones neonatales se estudiaron mediante análisis univariado y regresión logística. Estudiamos 204 binomios madre-hijo. Edad materna (mediana): 29 años, 32.5% sin diagnóstico previo de HIV. Recuento de linfocitos T CD4+ (mediana): 417 células/μl. El 98% recibió tratamiento antirretroviral durante el embarazo [dos análogos de nucleósidos más nevirapina (55%) o un inhibidor de proteasa (32%)]. La incidencia global de toxicidad fue 12.5%: erupción cutánea (8%), anemia (3.5%) y hepatotoxicidad (1%). La exposición a nevirapina se asoció con rash. El 81% y 50% alcanzaron cargas virales <1000 y <50 copias/ml preparto, respectivamente. Cesárea programada: 68%; complicaciones obstétricas: 26%; parto prematuro: 16%. De los neonatos, 1.6% presentaron defectos congénitos y el 9% complicaciones neonatales. La mortalidad neonatal fue 1% y la transmisión vertical: 0.7%. Las complicaciones obstétricas y el uso de inhibidores de proteasa se asociaron a parto prematuro; las complicaciones obstétricas se asociaron con complicaciones neonatales. La tasa de hepatotoxicidad fue baja a pesar de la utilización frecuente de nevirapina; el uso de inhibidores de proteasa se asoció a parto prematuro. Se observó una respuesta virológica favorable y una baja tasa de transmisión vertical, lo que apoya el consenso de que el beneficio de las drogas antirretrovirales durante el embarazo supera el riesgo de efectos adversos maternos y neonatales.


Subject(s)
Adult , Female , Humans , Infant , Infant, Newborn , Pregnancy , HIV Infections/epidemiology , Pregnancy Complications, Infectious/epidemiology , Anti-HIV Agents/therapeutic use , Antiretroviral Therapy, Highly Active/adverse effects , Antiretroviral Therapy, Highly Active/standards , Argentina/epidemiology , Follow-Up Studies , HIV Infections/drug therapy , Infant, Premature , Maternal Age , Nevirapine/therapeutic use , Pregnancy Outcome , Pregnancy Complications, Infectious/drug therapy , Pregnancy Complications, Infectious/prevention & control , Regression Analysis , Retrospective Studies , Viral Load
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