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- INI - Artigos de Periódicos [3522]
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LOWER RESPIRATORY TRACT INFECTIONS AMONG HUMAN IMMUNODEFICIENCY VIRUS-EXPOSED, UNINFECTED INFANTS
Autor
Afiliación
University of São Paulo. Faculty of Medicine of Ribeirão Preto. Ribeirão Preto, SP, Brazil.
University of São Paulo. Faculty of Medicine of Ribeirão Preto. Ribeirão Preto, SP, Brazil.
Westat. Rockville, MD, USA.
Universidade de Caxias do Sul. Caxias do Sul, RS, Brasil.
Hospital Diego Paroissien. Buenos Aires, Argentina.
Federal University of São Paulo. São Paulo, SP, Brazil.
University of the West Indies. Kingston, Jamaica.
Hospital Juan Fernandez. Buenos Aires, Argentina.
Hospital de Agudos Dra. Cecilia Grierson. Buenos Aires, Argentina.
National Institutes of Health. Pediatric, Adolescent, and Maternal AIDS Branch. Bethesda, MD, USA
University of São Paulo. Faculty of Medicine of Ribeirão Preto. Ribeirão Preto, SP, Brazil.
Westat. Rockville, MD, USA.
Universidade de Caxias do Sul. Caxias do Sul, RS, Brasil.
Hospital Diego Paroissien. Buenos Aires, Argentina.
Federal University of São Paulo. São Paulo, SP, Brazil.
University of the West Indies. Kingston, Jamaica.
Hospital Juan Fernandez. Buenos Aires, Argentina.
Hospital de Agudos Dra. Cecilia Grierson. Buenos Aires, Argentina.
National Institutes of Health. Pediatric, Adolescent, and Maternal AIDS Branch. Bethesda, MD, USA
Resumen en ingles
Objectives: To evaluate whether maternal HIV disease severity during pregnancy is associated with an increased likelihood of lower respiratory tract infections (LRTIs) in HIV-exposed, uninfected infants. Methods: HIV-exposed, uninfected, singleton, term infants enrolled in the NISDI Perinatal Study, with birth weight ≥ 2500 grams were followed from birth until six months of age. LRTI diagnoses, hospitalizations, and associated factors were assessed. Results: Of 547 infants, 103 (18.8%) experienced 116 episodes of LRTIs (incidence=0.84 LRTIs/100 child-weeks). Most (81%) episodes were bronchiolitis. Forty-nine (9.0%) infants were hospitalized at least once with an LRTI. There were 53 hospitalizations (45.7%) for 116 LRTI episodes. None of these infants were breastfed. The odds of LRTI in infants whose mothers had CD4%<14 were 4.4 times than that of those whose mothers had CD4%≥29 (p=0.003). The odds of LRTI were 16.0 times that of infants with a CD4+ count [cells/mm3] < 750 at birth compared to those with CD4+≥750 (p=0.002). Maternal CD4+ decline and Infant hemoglobin at the 6-12 week visit were associated with infant LRTIs after 6-12 weeks and before six months of age. Conclusions: Acute bronchiolitis is common and frequently severe among HIV-exposed, uninfected infants aged six months or less. Lower maternal and infant CD4+ values were associated with a higher risk of infant LRTIs. Further understanding of the immunological mechanisms of severe LRTIs is needed.
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