Electrophysiologic threshold study in air and bone conduction in children with 2 months or less age

• Published in: Brazilian journal of otorhinolaryngology 2007-03, Vol.73 (2), p.251-256
• Main Authors: Nápole Fichino, Silvia, Ruthy Lewis, Doris, Lopes Fávero, Mariana
• Format: Article
• Language: English
• Subjects: Acoustic Stimulation - methods; Air; audiology; auditory evoked response; Bone Conduction - physiology; child; Cohort Studies; Cross-Sectional Studies; early diagnosis; Evoked Potentials, Auditory, Brain Stem - physiology; Humans; Infant; Original; Prospective Studies
• ISSN: 1808-8694; 1808-8686
• DOI: 10.1016/S1808-8694(15)31074-0

The differential diagnosis of hearing loss with air and bone Auditory Brainstem Response in small children has not been enough studied in Brazil. To compare air and bone Auditory Brainstem Response results in children under 2 months of age with normal hearing. clinical with transversal cohort. 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. 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). 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.