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:: Volume 9, Issue 1 And 2 (5 2001) ::
aud 2001, 9(1 And 2): 49-51 Back to browse issues page
Comparing Intensity Elicited Maximum Reflex Amplitude between Noise Induced Hearing Loss & Acoustic Trauma at 1 kHz, Contra laterally, and Investigate Relationship between Amplitude and Hearing Impair
Mehrnaz Asadifar , Dr. Yones Lotfi
Abstract:   (6528 Views)

Method and Materials :this cross sectional descriptive and analytic survey was done at Golestan navy hospital in Tehran, between June 1998 and March 1999 on total of 69 male subject (104 ears, ) 50 acoustic trauma & 54 noise induced H.L) between 20 to 40 ears old.
Results:1- The mean acoustic reflex threshold at 1 kHz showed there is no significant difference between two groups.
2- The intensity elicited maximum reflex amplitude at 1 kHz didn&apost produce at a significant linear correlation with subject&aposs age and ear canal volume in both groups.
3- The intensity elicited maximum reflex amplitude in NIHL group wasn&apost shown a significant correlation with ear compliance and gradient.
4- The mean Intensity (SPL) elicited maximum reflex amplitude in NIHL group was more than mean intensity (SPL) in acoustic trauma group.
5- The mean intensity (SL) elicited maximum reflex amplitude in NIHL group was More than mean intensity (SL) in acoustic trauma group.
Conclusion: Acoustic reflex amplitude is reduced for subjects with NIHL compared with acoustic trauma subjects.

Keywords: Acoustic Reflex, Noise Induced Hearing Loss, Acoustic Trauma
Full-Text [PDF 322 kb]   (1764 Downloads)    
Type of Study: Research |
Published: 2013/08/27
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Volume 9, Issue 1 And 2 (5 2001) Back to browse issues page
شنوایی شناسی - دانشگاه علوم پزشکی تهران Bimonthly Audiology - Tehran University of Medical Sciences
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