Evaluation of otoacoustic emissions in clinically normal alert puppies

Bettina Schemera Division of Laboratory Animal Health, College of Veterinary Medicine, Auburn University, Auburn, AL 36849.

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 DVM, PhD
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Judith T. Blumsack Department of Communication Disorders, College of Liberal Arts, Auburn University, Auburn, AL 36849.

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Alice F. Cellino Department of Communication Disorders, College of Liberal Arts, Auburn University, Auburn, AL 36849.

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Travis D. Quiller Department of Communication Disorders, College of Liberal Arts, Auburn University, Auburn, AL 36849.

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Bradley A. Hess Department of Communication Disorders, College of Liberal Arts, Auburn University, Auburn, AL 36849.

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Patricia E. Rynders Division of Laboratory Animal Health, College of Veterinary Medicine, Auburn University, Auburn, AL 36849.

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 DVM, MS

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Abstract

Objective—To evaluate distortion product otoacoustic emission (DPOAE) measurements in puppies with normal hearing.

Animals—23 clinically normal 7.5-to 10.5-week-old puppies.

Procedures—A cross-sectional study was performed. The DPOAE measurements were obtained with a commercially available distortion product otoacoustic measurement system and were performed in a quiet, non-sound-attenuated room. All measurements were obtained from alert puppies and were repeated 1 or 2 times to ensure that the measurements were replicable. Results that were a minimum of 8 dB higher than the noise floor were accepted. Values from the first trial in which emissions were obtained at all test frequencies were used for analysis.

Results—Otoacoustic emission measurements were easily obtained, robust, reliable, and consistent with auditory brainstem response and behavioral results.

Conclusions and Clinical Relevance—Hearing screening in alert puppies can be accomplished reliably and rapidly with otoacoustic emissions testing. Results supported the possibility of the use of DPOAE measurement in hearing screening of dogs.

Abstract

Objective—To evaluate distortion product otoacoustic emission (DPOAE) measurements in puppies with normal hearing.

Animals—23 clinically normal 7.5-to 10.5-week-old puppies.

Procedures—A cross-sectional study was performed. The DPOAE measurements were obtained with a commercially available distortion product otoacoustic measurement system and were performed in a quiet, non-sound-attenuated room. All measurements were obtained from alert puppies and were repeated 1 or 2 times to ensure that the measurements were replicable. Results that were a minimum of 8 dB higher than the noise floor were accepted. Values from the first trial in which emissions were obtained at all test frequencies were used for analysis.

Results—Otoacoustic emission measurements were easily obtained, robust, reliable, and consistent with auditory brainstem response and behavioral results.

Conclusions and Clinical Relevance—Hearing screening in alert puppies can be accomplished reliably and rapidly with otoacoustic emissions testing. Results supported the possibility of the use of DPOAE measurement in hearing screening of dogs.

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