A 3 yr old male castrated Labrador retriever presented for evaluation and treatment of bilateral atresia of the external ear canals. The owners reported that the dog could hear only loud and high-pitched noises. Computed tomography of the head revealed intact vertical and horizontal ear canals filled with debris and a debris-filled right tympanic bulla. Air- and bone-conducted brainstem auditory evoked response (BAER) testing revealed an elevated response threshold to air-conducted stimuli and greater amplitude waveforms evoked by bone-conducted stimuli. The ear canals were surgically corrected via lateral ear canal resection. BAER testing postoperatively revealed a decrease in the air-conducted BAER threshold. This case is an example of the use of bone-conducted BAER testing to aid in the diagnosis of conductive deafness, and in determining prognosis for normal hearing after surgical treatment of external ear canal atresia.
Skip Nav Destination
Article navigation
September/October 2011
Case Reports|
September 01 2011
BAER Testing in a Dog with Bilateral External Ear Canal Atresia
Cona Anwer, DVM;
Cona Anwer, DVM
*
Department of Clinical Studies, University of Pennsylvania School of Veterinary Medicine, Philadelphia, PA.
Correspondence: [email protected] (C.A.)
Search for other works by this author on:
Tobias Schwarz, Dr.med.vet., DACVR;
Tobias Schwarz, Dr.med.vet., DACVR
†
Department of Clinical Studies, University of Pennsylvania School of Veterinary Medicine, Philadelphia, PA.
Search for other works by this author on:
Susan W. Volk, VMD, PhD, DACVS;
Susan W. Volk, VMD, PhD, DACVS
Department of Clinical Studies, University of Pennsylvania School of Veterinary Medicine, Philadelphia, PA.
Search for other works by this author on:
Charles Vite, DVM, PhD, DACVIM (Neurology)
Charles Vite, DVM, PhD, DACVIM (Neurology)
Department of Clinical Studies, University of Pennsylvania School of Veterinary Medicine, Philadelphia, PA.
Search for other works by this author on:
J Am Anim Hosp Assoc (2011) 47 (5): 370–374.
Citation
Cona Anwer, Tobias Schwarz, Susan W. Volk, Charles Vite; BAER Testing in a Dog with Bilateral External Ear Canal Atresia. J Am Anim Hosp Assoc 1 September 2011; 47 (5): 370–374. doi: https://doi.org/10.5326/JAAHA-MS-5545
Download citation file:
Sign in
Don't already have an account? Register
Client Account
You could not be signed in. Please check your email address / username and password and try again.
Could not validate captcha. Please try again.
Sign in via your Institution
Sign in via your InstitutionCiting articles via
Long-Term Survival of Primary Intracranial Histiocytic Sarcoma Through Surgical Resection and Low-Dose CCNU
Kyosuke Hidari, DVM, Yuya Nakamoto, DVM, PhD, James K. Chambers, DVM, PhD, Kazuyuki Uchida, DVM, PhD, Isao Mori, DVM, Miwa Nakamoto, DVM
Microfilaria in the Urine of a Dog with Concurrent Urinary Bladder Sarcoma
Nicole Schlette, DVM, Erin Burton, DVM, MS, DACVP, Amber Harris, DVM, DACVIM (Internal Medicine), Kendall Langsten, DVM, DACVP, Erik Olson, DVM, PhD, DACVP, Daniel Heinrich, DVM, DACVP
Chronic Myelomonocytic Leukemia with Central Nervous System Involvement in a Dog
Ilaria Tartari, DVM, Fabio Tocco, DVM, Giorgio Cancedda, DVM, Veronica Angioni, DVM, Marco Podda, DVM, Antonella Gallucci, DVM, PhD, DECVN, EBVS
Treatment Outcomes of Canine Orbital Meningiomas in Seven Cases
Akihiro Uno, DVM, Ryota Iwasaki, DVM, PhD, Takashi Mori, DVM, PhD
Transient Hypoadrenocorticism in a 7-Week-Old Kitten
Alba Planas Vintro, BVM, Linda G. Martin, DVM, MS, DACVECC, Cassidy L. Cordon, DVM, Sabrina N. Hoehne, Dr. med. vet., DACVECC, DECVECC, Elizabeth B. Davidow, DVM, DACVECC