Cigarette smoking effect on human cochlea responses.

Autor:	Rogha M; Department of Otolaryngology, Al-Zahra Hospital, Isfahan University of Medical Sciences, Isfahan, Iran., Hashemi M; Department of Otolaryngology, Al-Zahra Hospital, Isfahan University of Medical Sciences, Isfahan, Iran., Askari N; Department of Otolaryngology, Al-Zahra Hospital, Isfahan University of Medical Sciences, Isfahan, Iran., Abtahi SH; Department of Otolaryngology, Al-Zahra Hospital, Isfahan University of Medical Sciences, Isfahan, Iran., Sepehrnejad M; Department of Audiology, School of Rehabilitation Sciences, Isfahan University of Medical Sciences, Isfahan, Iran., Nilforoush MH; Department of Audiology, School of Rehabilitation Sciences, Isfahan University of Medical Sciences, Isfahan, Iran.
Jazyk:	angličtina
Zdroj:	Advanced biomedical research [Adv Biomed Res] 2015 Jul 27; Vol. 4, pp. 148. Date of Electronic Publication: 2015 Jul 27 (Print Publication: 2015).
DOI:	10.4103/2277-9175.161575
Abstrakt:	Background: Smoking is one of the most important risk factor in increasing of non-communicable disorders, especially chronic diseases such as cancer, stroke, heart and respiratory diseases. Cigarette smoking could damage the cochlea and causing hearing loss. The otoacoustic emission (OAE) is a source of information for determining cochlear responses to sound stimuli and how to change the response of the auditory system in some diseases. OAE test was sensitive to outer hair cells (OHCs) activity. Materials and Methods: In this study, tried to evaluate a hearing threshold of the smoker group versus non-smoker ones through pure tone audiometery, transient evoked otoacoustic emission (TEOAE) and distortion product otoacoustic emission (DPOAE) tests. Results: The results indicated that significant decrement of 8000 Hz threshold, reduced DPOAE/TEOAE amplitude in the smoker group than non-smoker one (P < 0.05). DPOAE amplitudes decline reflects the cochlear damage caused by smoking. Conclusion: OAEs test was clinically non-invasive, accurate, and objective evaluation of the performance of cochlear OHCs.
Databáze:	MEDLINE
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