Electrophysiologic threshold study in air and bone conduction in children with 2 months or less age.
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.
Fichino
Silvia Nápole
SN
PUC-SP.
Lewis
Doris Ruthy
DR
Fávero
Mariana Lopes
ML
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