Air- and bone-conduction brainstem auditory evoked potentials and flash visual evoked potentials in cats

George M. Strain From the Departments of Veterinary Physiology, Pharmacology and Toxicology (Strain, Tedford, Treviño) and Veterinary Anatomy and Cell Biology (Littlefield-Chabaud), School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA 70803.

Search for other papers by George M. Strain in
Current site
Google Scholar
PubMed
Close
 PhD
,
Bruce L. Tedford From the Departments of Veterinary Physiology, Pharmacology and Toxicology (Strain, Tedford, Treviño) and Veterinary Anatomy and Cell Biology (Littlefield-Chabaud), School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA 70803.

Search for other papers by Bruce L. Tedford in
Current site
Google Scholar
PubMed
Close
 PhD
,
Martha A. Littlefield-Chabaud From the Departments of Veterinary Physiology, Pharmacology and Toxicology (Strain, Tedford, Treviño) and Veterinary Anatomy and Cell Biology (Littlefield-Chabaud), School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA 70803.

Search for other papers by Martha A. Littlefield-Chabaud in
Current site
Google Scholar
PubMed
Close
 DVM, MS
, and
Lisa T. Treviño From the Departments of Veterinary Physiology, Pharmacology and Toxicology (Strain, Tedford, Treviño) and Veterinary Anatomy and Cell Biology (Littlefield-Chabaud), School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA 70803.

Search for other papers by Lisa T. Treviño in
Current site
Google Scholar
PubMed
Close

Click on author name to view affiliation information

SUMMARY

Objective

-To document normal values for air- and bone-conducted brainstem auditory evoked potentials (BAEP) and for flash visual evoked potentials (VEP) in cats.

Animals

10 mixed-breed cats (5 males) with normal physical, neurologic, otoscopic, and funduscopic examination results.

Procedure

BAEP in response to air- and bone-conducted click stimuli and VEP in response to flash stimuli were recorded to document species normative data. Mean and SD values were calculated for amplitudes and latencies of 4 peaks in the BAEP in response to air- and bone-conducted stimuli, and for latencies to 5 peaks and the 4 associated peak-to-peak amplitudes in the VEP.

Results

BAEP peak latencies increased and peak amplitudes decreased with decreasing stimulus intensity. Latencies were shorter for bone-conducted stimuli owing to the shorter transit time to the cochlea through bone, compared with air, but there were no differences for interpeak latencies. The BAEP and VEP recordings were similar to those reported for cats in other reports and were similar to those seen in other species.

Clinical Relevance

Normative data will permit performance of noninvasive electrodiagnostic evaluation of feline auditory and visual systems. (Am J Vet Res 1998;59:135–137)

SUMMARY

Objective

-To document normal values for air- and bone-conducted brainstem auditory evoked potentials (BAEP) and for flash visual evoked potentials (VEP) in cats.

Animals

10 mixed-breed cats (5 males) with normal physical, neurologic, otoscopic, and funduscopic examination results.

Procedure

BAEP in response to air- and bone-conducted click stimuli and VEP in response to flash stimuli were recorded to document species normative data. Mean and SD values were calculated for amplitudes and latencies of 4 peaks in the BAEP in response to air- and bone-conducted stimuli, and for latencies to 5 peaks and the 4 associated peak-to-peak amplitudes in the VEP.

Results

BAEP peak latencies increased and peak amplitudes decreased with decreasing stimulus intensity. Latencies were shorter for bone-conducted stimuli owing to the shorter transit time to the cochlea through bone, compared with air, but there were no differences for interpeak latencies. The BAEP and VEP recordings were similar to those reported for cats in other reports and were similar to those seen in other species.

Clinical Relevance

Normative data will permit performance of noninvasive electrodiagnostic evaluation of feline auditory and visual systems. (Am J Vet Res 1998;59:135–137)

All Time Past Year Past 30 Days
Abstract Views 0 0 0
Full Text Views 48 48 8
PDF Downloads 123 123 93
Advertisement