A child with an unusually high-level spontaneous otoacoustic emission.
We describe a child who emitted a continuous audible sound from his left ear. A high-level spontaneous otoacoustic emission was measured at the frequency of 5.64 kHz with an amplitude of 55 dB sound pressure level. A high-frequency hearing loss was measured in both ears; however, it was more pronounced in the emitting ear. The emission failed to synchronize to external click stimuli. This spontaneous emission is probably related to a cochlear defect, but it should not contribute additionally to the child's existing auditory impairment.
Mathis
A
A
Department of Otorhinolaryngology, Kantonsspital Luzern, Switzerland.
Probst
R
R
De Min
N
N
Hauser
R
R
D000162:Acoustics; D001299:Audiometry; D001307:Auditory Perception / Q000502:physiology*; D003051:Cochlea / Q000502:physiology*; D016057:Evoked Potentials, Auditory, Brain Stem / Q000502:physiology; D006801:Humans; D007223:Infant; D008297:Male; D012022:Reflex, Acoustic / Q000502:physiology*