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Titolo:
A COMPARISON OF DIFFERENT AUDIOMETRIC MET HODS FOR EARLY DETECTION OFA VULNERABLE COCHLEA - PREVENTION OF NOISE-INDUCED HEARING-LOSS
Autore:
PLINKERT PK; HEMMERT W; ZENNER HP;
Indirizzi:
UNIV TUBINGEN,HALS NASEN OHREN KLIN,SILCHERSTR 5 D-72076 TUBINGEN GERMANY
Titolo Testata:
HNO. Hals-, Nasen-, Ohrenarzte
fascicolo: 2, volume: 43, anno: 1995,
pagine: 89 - 97
SICI:
0017-6192(1995)43:2<89:ACODAM>2.0.ZU;2-7
Fonte:
ISI
Lingua:
GER
Keywords:
NOISE-INDUCED HEARING LOSS; OTOACOUSTIC EMISSIONS; ACOUSTIC DISTORTION PRODUCTS; HIGH-FREQUENCY AUDIOMETRY; COCHLEAR AMPLIFIER; UPPER LIMIT OF HEARING;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
NO
Recensione:
Indirizzi per estratti:
Citazione:
P.K. Plinkert et al., "A COMPARISON OF DIFFERENT AUDIOMETRIC MET HODS FOR EARLY DETECTION OFA VULNERABLE COCHLEA - PREVENTION OF NOISE-INDUCED HEARING-LOSS", HNO. Hals-, Nasen-, Ohrenarzte, 43(2), 1995, pp. 89-97

Abstract

Noise-induced temporary impairment of cochlear function was measured with several audiometric tests in order to evaluate which method best predicts a vulnerable cochlea. We tested 10 normally-hearing and 13 subjects who were positive for temporary threshold shifts (TTS). The latter were selected from 194 soldiers who demonstrated a TTS higher than15 dB after regular training with firearms. Acoustic distortion products (DPOAE), click-evoked otoacoustic emissions (TEOAE), upper limit of hearing (ULH) and pure-tone and high-frequency audiometry were used to evaluate possible increased vulnerability of the cochlea. Tests were conducted at lower sound intensities (white noise, 90 dB SPL, 5 min;impact noise, 100 or 106 dB SPL(S), 10 impulses/s, 5 min). Seventy per cent of the TTS-positive soldiers studied exhibited significant reductions of TEOAE amplitudes, whereas a stable emission was observed in all control subjects. DPOAE alterations were seen in 38% of the soldiers tested. These results indicate that TEOAE is the most sensitive, objective method for detecting a positive disturbance in cochlear function. Although the upper limit of hearing was also a very sensitive method, variability of this psychoacoustic method depended on the help andexperience of the subjects being tested.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 28/11/20 alle ore 12:27:48