کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5799486 | 1111803 | 2011 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of middle ear effusion on the brain-stem auditory evoked response of Cavalier King Charles Spaniels
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
علوم دامی و جانورشناسی
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چکیده انگلیسی
Brain-stem auditory evoked responses (BAER) were assessed in 23 Cavalier King Charles Spaniels with and without middle ear effusion at sound intensities ranging from 10 to 100Â dB nHL. Significant differences were found between the median BAER threshold for ears where effusions were present (60Â dB nHL), compared to those without (30Â dB nHL) (PÂ =Â 0.001). The slopes of latency-intensity functions from both groups did not differ, but the y-axis intercept when the x value was zero was greater in dogs with effusions (PÂ =Â 0.009), consistent with conductive hearing loss. Analysis of latency-intensity functions suggested the degree of hearing loss due to middle ear effusion was 21Â dB (95% confidence between 10 and 33Â dB). Waves I-V inter-wave latency at 90Â dB nHL was not significantly different between the two groups. These findings demonstrate that middle ear effusion is associated with a conductive hearing loss of 10-33Â dB in affected dogs despite the fact that all animals studied were considered to have normal hearing by their owners.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: The Veterinary Journal - Volume 188, Issue 3, June 2011, Pages 341-345
Journal: The Veterinary Journal - Volume 188, Issue 3, June 2011, Pages 341-345
نویسندگان
Thomas R. Harcourt-Brown, John E. Parker, Nicolas Granger, Nick D. Jeffery,