CORRELATION BETWEEN CEREBRAL FUNCTIONAL LATERALITY AND EVOLUTION OF AUDIOMETRIC THRESHOLDS IN INDUSTRIAL WORKERS

Guilherme Lippi Ciantelli; Aecio de A. Porto; Thales Eugeni; Everardo Costa; Agr�cio Crespo

Volume : VIII, Issue : II, February - 2018

CORRELATION BETWEEN CEREBRAL FUNCTIONAL LATERALITY AND EVOLUTION OF AUDIOMETRIC THRESHOLDS IN INDUSTRIAL WORKERS

Guilherme Lippi Ciantelli, Aecio De A. Porto, Thales Eugeni, Everardo Costa, Agr Cio Crespo

Abstract :

Objective: To evaluate the relationship between cereal laterality and the difference in evolution of the averages of audiometric thresholds in 3.0, 4.0 and 6.0 kHz. Methods: A cross–sectional study with serial audiometry tests analyses evaluating the evolution of the arithmetic means in 3.0, 4.0 and 6.0 kHz of both ears in relation to the dominant hand of industrial workers Results: The sample showed a predominantly male group with a mean exposure time of 152.8 months. Of the total, 92,9% workers were right–handed and 7,1% left–handed. The left side presented the worst mean in 48.2%, the right in 33.4% and 18.4% were indifferent. The Chi–square test showed no statistically significance between the worsening of the right side on left–handed or the left side on right–handed (p=0,42). Conclusion: It was not possible to stablish a relationship between the dominant hand and the involvement of one ear in relation to another.