Auditory brain-stem response audiometry in patients with Bell's palsy.
To evaluate the hypothesis of central nervous system involvement in Bell's palsy, the auditory brain-stem responses (ABR) of 32 patients were studied. In 14 (43.7%) of these patients ABR abnormalities were found. In each case the ABR deviation suggested prolonged brain-stem conduction time, independent of the side or severity of the paralysis. Site of lesion tests in this sample failed to demonstrate eighth nerve dysfunction and, thus, does not support a theory of a polyneuropathy that involves the auditory nerve.
Kaviani
M
M
Department of Otolaryngology, Shiraz University of Medical Sciences, Iran.
Jafary
A H
AH
D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D016057:Evoked Potentials, Auditory, Brain Stem; D005158:Facial Paralysis / Q000503:physiopathology*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012022:Reflex, Acoustic; D000159:Vestibulocochlear Nerve / Q000503:physiopathology*