[Modification of precocious evoked auditory potential amplitudes observed in tinnitus].
Brainstem evoked response audiometry has been performed in 139 patients complaining of tinnitus, unilateral or bilateral. Amplitudes of I, III, V waves and the amplitude relations I/III, I/V, III/V have been compared with those obtained in a normal population (n = 20). Amplitudes of waves I and III decreased according to their localization: decrease of left I and III for left tinnitus, decrease of left I and right III for right tinnitus, and for I and III both left and right for bilateral tinnitus. Recording of brainstem evoked response before any therapeutical treatment, especially study of amplitudes, could therefore provide information an localization of tinnitus.
de Lavernhe-Lemaire
M C
MC
Service d'Otorhinolaryngologie, CHU Bretonneau, Tours, France.
Beutter
P
P
D000328:Adult; D000368:Aged; D016057:Evoked Potentials, Auditory, Brain Stem / Q000502:physiology*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D014012:Tinnitus / Q000503:physiopathology*
Modifications des amplitudes des potentiels évoques auditifs précoces observées dans les acouphènes.