[The acoustic distortion products application in noise pathology].
We study a total of 40 individuals exposed to noise in 3 forms of presentation: continuous (metal-workers), impact (hunters and policemen) and acute (bombs or fireworks). All them underwent a study with otoscopy, pure-tone audiometry, speech audiometry, tympanometry and recording of DP 2f1-f2 in the DPgram form. The results showed an early damage in DP (3 to 6 kHz). That are demonstrated by a decrease in recording in direct relation with increased audiometric threshold. Being obvious at 6 kHz among subjects exposed to continuous noise, though the smaller extent data are expressed in the records of 3 and 4 kHz, independently of noise form of exposure.
Morant Ventura
A
A
Servicio de O.R.L. Hospital Clínico Universitario, Valencia.
Mata Peñuela
J J
JJ
Orts Alborch
M
M
Postigo Madueño
A
A
Marco Algarra
J
J
D000293:Adolescent; D000328:Adult; D001301:Audiometry, Pure-Tone; D003051:Cochlea / Q000503:physiopathology; D005260:Female; D006317:Hearing Loss, Noise-Induced / Q000175:diagnosis* / Q000503:physiopathology; D006801:Humans; D008297:Male; D008875:Middle Aged; D009784:Occupational Diseases / Q000175:diagnosis / Q000503:physiopathology; D017084:Otoacoustic Emissions, Spontaneous / Q000502:physiology; D012720:Severity of Illness Index