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:: Volume 2, Issue 1 And 2 (4 1993) ::
aud 1993, 2(1 And 2): 13-16 Back to browse issues page
Acoustic Reflex Thresholds in Normal, Cochlear, and Retrocochlear lesions.
Navid Shahnaz
Abstract:   (12047 Views)
The cut off points of 90th percentile of acoustic reflex thresholds were determined in the normal and sensory hearing loss.All subjects had measurable hearing(ANSI-1969≤110 dBHL) in three frequencies of 500,1000 and 2000Hz.While hearing loss was more than 55dB, The cut off point was higher in studies that NR responses was included.In cases that hearing loss was less than 75dB  90th percentile can be used in diganosis of retrochochlear lesions.Since Acoustic reflexes are absent in both mentioned pathologies in greater amount of hearing loss,It would be less efficient in diffrential diganisis of cochlear and retrochochlear lesions to use acoustic reflex thresholds under the mentioned circumstances.

Keywords: Acoustic reflex threshold, cochlear lesions, Retrocochlear pathology
Full-Text [PDF 963 kb]   (1897 Downloads)    
Type of Study: Translated Article |
Accepted: 2013/09/28 | Published: 2017/09/24
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Volume 2, Issue 1 And 2 (4 1993) Back to browse issues page
شنوایی شناسی - دانشگاه علوم پزشکی تهران Bimonthly Audiology - Tehran University of Medical Sciences
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