Electrophysiologic assessment of auditory pathways in high risk infants.
This study evaluated auditory processing in a group of 59 infants at risk for subsequent hearing and language disorders due to low birthweight and/or perinatal asphyxia. Auditory system integrity was evaluated electrophysiologically by recording the auditory brainstem response (ABR), middle latency response (MLR) and the cortical auditory evoked potential (CAEP). 63% of the babies had normal peripheral function or slight unilateral impairment; 84% had normal brainstem auditory system function; 82% showed normal MLRs; and 81% showed normal CAEPs. Fifty-three percent of the babies were normal on all tests and only 3% were deviant on all tests. The remaining infants showed diverse patterns of peripheral, brainstem and cortical abnormalities.
Department of Otorhinolaryngology, Albert Einstein College of Medicine, Bronx, NY 10461.
B
B
Cone-Wesson
D
D
Kurtzberg
H G
HG
Vaughan
D001303:Auditory Cortex / Q000503:physiopathology; D001306:Auditory Pathways / Q000503:physiopathology*; D001933:Brain Stem / Q000503:physiopathology; D004594:Electrophysiology; D005072:Evoked Potentials, Auditory; D006311:Hearing Disorders / Q000209:etiology / Q000503:physiopathology; D006801:Humans; D007230:Infant, Low Birth Weight / Q000502:physiology*; D007231:Infant, Newborn; D007806:Language Disorders / Q000209:etiology / Q000503:physiopathology; D012307:Risk Factors