title: [Audiometric evaluation in extended high frequencies of individuals exposed to occupational noise].
abstract: 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.
authors.affiliation: Departamento de Fonoaudiologia da Faculdade de Odontologia de Bauru da Universidade de São Paulo. maaporto@yahoo.com.br
authors.forename: Maria Angélica de Almeida
authors.initials: MA
authors.lastname: Porto
authors.forename: Dáphine Luciana Costa
authors.initials: DL
authors.lastname: Gahyva
authors.forename: José Roberto Pereira
authors.initials: JR
authors.lastname: Lauris
authors.forename: Andréa Cintra
authors.initials: AC
authors.lastname: Lopes
mesh_terms: 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*