[Audiometric evaluation in extended high frequencies of individuals exposed to occupational noise].
BACKGROUND
Audiometric evaluation in extended high frequencies.


OBJECTIVE
To evaluate the hearing of adults exposed to occupational noise in conventional and ultra-high frequencies.


METHODS
Evaluation of 30 adults exposed to noise and 30 adults who are not exposed (control group). Audiometer SD-50/Siemens, phones HDA200 and warble tone.


RESULTS
With the increase in frequency, age and time of noise exposure there was a higher decrease in the hearing thresholds for the group of individuals exposed to noise. A higher incidence of hearing loss at 6 kHz and 14 kHz was observed.


CONCLUSIONS
The present research demonstrated that the audiometric evaluation in extended high frequencies contributes to the early diagnosis of cortipathies, since these thresholds are affected before the conventional frequencies.
Porto
Maria Angélica de Almeida
MA
Departamento de Fonoaudiologia da Faculdade de Odontologia de Bauru da Universidade de São Paulo. maaporto@yahoo.com.br
Gahyva
Dáphine Luciana Costa
DL
Lauris
José Roberto Pereira
JR
Lopes
Andréa Cintra
AC
D000328:Adult; D001299:Audiometry / Q000379:methods*; D001309:Auditory Threshold / Q000502:physiology*; D004812:Epidemiologic Methods; D005260:Female; D006309:Hearing / Q000502:physiology; D006317:Hearing Loss, Noise-Induced / Q000175:diagnosis* / Q000209:etiology; D006801:Humans; D008297:Male; D008875:Middle Aged; D009623:Noise, Occupational / Q000009:adverse effects*; D016273:Occupational Exposure / Q000009:adverse effects*