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  • Title: [Audiometric evaluation in extended high frequencies of individuals exposed to occupational noise].
    Author: Porto MA, Gahyva DL, Lauris JR, Lopes AC.
    Journal: Pro Fono; 2004; 16(3):237-50. PubMed ID: 15609579.
    Abstract:
    BACKGROUND: Audiometric evaluation in extended high frequencies. AIM: To evaluate the hearing of adults exposed to occupational noise in conventional and ultra-high frequencies. METHOD: 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. CONCLUSION: 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.
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