Abstract
A 18 years old man with unilateral inner ear impairment caused by intraventricular injection of gentamicin is reported. The patient had been complaining of tinnitus and hearing impairment in his left ear only two days after gentamicin-injection. Total dose was 10 mg. Ataxic was noted on ambulation. His average hearing loss was about 60 dB and the audiogram was a flat form. Recruitment phenomenon was also confirmed. Equi-librium function tests revealed left vestibular dysfunction. It was concluded that the inner ear impairment was caused by the intraventricular injection of gentamicin, since the inner ear impairment had appeared so early in this case.
