Auditory evoked potentials in patients who reject or not binaural amplification

Abstract

A comparative descriptive study was carried out to determine the significant differences in the Short-Latency Auditory-Evoked Potentials that could, through the analysis of various variables, determine the reason why patients older than 65 years, with average sensorineural hearing loss up to 70 - 80 dB reject binaural amplification at the Institute for Blind and Deaf Children in the city of Cali, in 2005. An intentional sample of 40 patients with binaural adaptation of at least three months was taken, of which 20 rejected hearing aids and 20 no. The study allowed to detect that in the latency results of Waves I, III and V, the interpeak latencies I - III, III - V, I - V and the interaural difference of wave V, using a click stimulus, varying the Stimulus velocity of 11 p / sec and 77 p / sec, and the polarity of the stimulus in Rarefaction and Condensation in each of the ears presented values ​​that do not deviate from normal, for the population under study; This also happened in the auditory functionality in the two groups of patients in different daily situations presented in the modified HHIE questionnaire. The study showed that there are no significant differences between the two study groups, which was verified using the Mann-Whitney U test, that is, the BERA electrophysiological test does not provide information that allows determining whether a patient older than 65 years with sensorineural hearing loss between 70 and 80 dB it will adapt to binaural amplification.