Acoustic neuroma and the contralateral ear: recovery of auditory brainstem response abnormalities after surgery.
Auditory brainstem responses are an established technique in the diagnosis of acoustic neuroma. In several reports abnormalities are shown to occur in the contralateral ear. That these abnormalities recover has been demonstrated, but only in terms of changes in inter-peak latency. In only one case has the waveform trace showing this been published. We present a case in which a highly abnormal wave form was obtained from the ear contralateral to a large acoustic neuroma. Following excision of the lesion, the waveform reverted to a normal pattern. The literature on the subject is reviewed.
Deans
J A
JA
Department of Otolaryngology, Freeman Hospital, Newcastle Upon Tyne.
Birchall
J P
JP
Mendelow
A D
AD
D001301:Audiometry, Pure-Tone; D001933:Brain Stem / Q000503:physiopathology*; D005072:Evoked Potentials, Auditory / Q000502:physiology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009464:Neuroma, Acoustic / Q000503:physiopathology* / Q000534:rehabilitation / Q000601:surgery; D011184:Postoperative Period