[The effect of relaxation, the quality and strength of signals on the latency of brain stem evoked response audiometry].
The paper deals with one of the pitfalls in examinations of acoustic evoked potentials - the problem of complete relaxation of the patient. The possibility of adequate gain of signals and the optimal record of latency is closely associated with this question. Sixty-two results of BERA examinations revealed that in 22 instances the findings of the latency of the V wave were beyond the wider range. There was, however, no marked interaural asymmetry suggesting a retrocochlear lesion. It may be concluded that protraction of the latency was associated with a low grade of relaxation. This is apparent from repeated examinations where a greater motor inhibition was achieved. To attain complete rest it is advisable to administer as premedication a psychopharmaceutical preparation and the neuroleptic preparation Haloperidol in adequate doses.
Novotný
Z
Z
D000328:Adult; D001300:Audiometry, Evoked Response; D001933:Brain Stem / Q000502:physiology*; D005260:Female; D006220:Haloperidol / Q000494:pharmacology; D006801:Humans; D008297:Male; D008875:Middle Aged
D006220:Haloperidol
Vliv relaxace, kvality a zesílení signálů na latenci BERA.