title: Electrophysiologic threshold study in air and bone conduction in children with 2 months or less age.
abstract: The differential diagnosis of hearing loss with air and bone Auditory Brainstem Response in small children has not been enough studied in Brazil.
  
  
  OBJECTIVE
  To compare air and bone Auditory Brainstem Response results in children under 2 months of age with normal hearing.
  
  
  METHODS
  clinical with transversal cohort.
  
  
  METHODS
  12 children who passed the hearing screening were evaluated using air and bone Auditory Brainstem Response. No contralateral masking was used in the bone conduction test. The responses were compared and analyzed by the McNemar test and repetitive measurements of the variance test.
  
  
  RESULTS
  There were no statistic differences between air and bone conduction Auditory Brainstem Response thresholds (p>0.05). The bone conduction latency for wave V was statistically higher than air conduction latency (p=0.000).
  
  
  CONCLUSIONS
  There was agreement on the results recorded for air and bone conduction Auditory Brainstem Response for threshold intensities; latency for bone conduction wave V was statistically higher than the air conduction latency.
authors.affiliation: PUC-SP.
authors.forename: Silvia Nápole
authors.initials: SN
authors.lastname: Fichino
authors.forename: Doris Ruthy
authors.initials: DR
authors.lastname: Lewis
authors.forename: Mariana Lopes
authors.initials: ML
authors.lastname: Fávero
mesh_terms: D000161:Acoustic Stimulation / Q000379:methods*; D000388:Air; D001844:Bone Conduction / Q000502:physiology*; D015331:Cohort Studies; D003430:Cross-Sectional Studies; D016057:Evoked Potentials, Auditory, Brain Stem / Q000502:physiology*; D006801:Humans; D007223:Infant; D011446:Prospective Studies