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논문 기본 정보

자료유형
학술저널
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대한이비인후과학회 Clinical and Experimental Otorhinolaryngology Clinical and Experimental Otorhinolaryngology 제8권 제4호
발행연도
2015.1
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303 - 311 (9page)

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Objectives. The present study investigates the usefulness of transiently evoked otoacoustic emissions (TEOAEs) and distortion product OAEs (DPOAEs) in detecting small changes in the hearing of young smoking adults. Methods. Otoacoustic emissions were acquired from the ears of 48 young adults (age, 20 to 27 years). The dataset was divided into two groups, smoking (24 persons/48 ears) and nonsmoking (24 persons/48 ears). The level of smoking was relatively small in comparison to previous studies, an average of 3.8 years and 8.7 cigarettes per day. In each ear three OAE measurements were made: TEOAEs, DPOAEs, and spontaneous OAEs (SOAEs). Pure tone audiometry and tympanometry were also conducted. Audiometric thresholds did not differ significantly between the datasets. Half-octave-band values of OAE signal to noise ratios and response levels were used to assess statistical differences. Results. Averaged data initially revealed that differences between the two study groups occurred only for TEOAEs at 1 kHz. However when the datasets were divided into ears with and without SOAEs more differences became apparent, both for TEOAEs and DPOAEs. In ears that exhibited SOAEs, both smokers and nonsmokers, there were no statistically significant differences between evoked OAEs; however in all ears without SOAEs, evoked OAEs were higher in the ears of nonsmokers, by as much as 5 dB. These differences were most prominent in the 1–2 kHz range. Conclusion. A general decrease in OAE levels was found in the group of smokers. However, in ears which exhibited SOAEs, there was no difference between the evoked OAEs of smokers and nonsmokers. We conclude that smoking had not yet measurably affected the ears of those with acute hearing (i.e., those who exhibit SOAEs). However, in ears without SOAEs, smokers exhibited smaller evoked OAE amplitudes than nonsmokers, even though their audiometric thresholds were within the norm.
#Hearing #Cochlea #Smoking #Audiometry #Pure Tone #Otoacoustic Emissions #Spontaneous

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참고문헌 (25)

참고문헌 신청
Ambrose JA / 2004 / The pathophysiology of cigarette smoking and cardiovascular disease: an update / J Am Coll Cardiol 43 (10) : 1731 ~ 1737 google schola Cruickshanks KJ / 1998 / Cigarette smoking and hearing loss: the epidemiology of hearing loss study / JAMA 279 (21) : 1715 ~ 1719 google schola Durante AS / 2011 / Maternal smoking during pregnancy: impact on otoacoustic emissions in neonates / Int J Pediatr Otorhinolaryngol 75 (9) : 1093 ~ 1098 google schola Durante AS / 2013 / Tobacco smoke exposure during childhood: effect on cochlear physiology / Int J Environ Res Public Health 10 (11) : 5257 ~ 5265 google schola Fabry DA / 2011 / Secondhand smoke exposure and the risk of hearing loss / Tob Control 20 (1) : 82 ~ 85 google schola

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