title: Brainstem auditory evoked response in HIV-infected patients with and without AIDS.
abstract: BACKGROUND
  The purpose of this paper is to determine the type and frequency of brainstem auditory evoked potential abnormalities in HIV-infected patients with and without acquired immune deficiency syndrome (AIDS).
  
  
  METHODS
  Brainstem auditory evoked potentials were performed in 44 HIV-infected patients; 22 of these patients were asymptomatic carriers and 22 presented clinical manifestation of AIDS at the time of the study. Twenty healthy young adults were studied as controls. When brainstem auditory evoked potentials were performed, none of the HIV-infected patients had neurologic clinical findings.
  
  
  RESULTS
  The interwave intervals I-V showed significant differences (p <0.05) between both HIV-infected groups and the control group. There were non-significant differences between the two groups including HIV-infected patients with or without clinical features of AIDS.
  
  
  CONCLUSIONS
  It is concluded that the HIV infection may produce subclinical pathologic changes in the cochlear nerve and brainstem, which can be detected by BAEP test.
authors.affiliation: Departamento de Audiología y Foniatría, Hospital General de México, Mexico City, Mexico.
authors.forename: Laura
authors.initials: L
authors.lastname: Reyes-Contreras
authors.forename: Andrés
authors.initials: A
authors.lastname: Silva-Rojas
authors.forename: Antonio
authors.initials: A
authors.lastname: Ysunza-Rivera
authors.forename: Graciela
authors.initials: G
authors.lastname: Jiménez-Ruíz
authors.forename: Pedro
authors.initials: P
authors.lastname: Berruecos-Villalobos
authors.forename: Gabriel
authors.initials: G
authors.lastname: Romo-Gutiérrez
mesh_terms: D015526:AIDS Dementia Complex / Q000175:diagnosis / Q000503:physiopathology; D000163:Acquired Immunodeficiency Syndrome / Q000503:physiopathology*; D000293:Adolescent; D000328:Adult; D001307:Auditory Perception / Q000502:physiology; D016057:Evoked Potentials, Auditory, Brain Stem / Q000502:physiology*; D005260:Female; D015658:HIV Infections / Q000503:physiopathology*; D006679:HIV Seropositivity; D006801:Humans; D008297:Male; D008875:Middle Aged; D013997:Time Factors