Deafness evaluation and brainstem auditory evoked response (BAER) testing in dogs
P Selvaraj, M Sivakumar, S Yogeshpriya, M Venkatesan, M Veeraselvam and K Jayalakshmi
BAER assessment and deafness evaluation were conducted in dogs presented for medical care during a 12 month period from November 2016 to November 2017. In this study a total of 12 dogs were evaluated for deafness and brainstem auditory evoked response (BAER) testing using a modern computerized BAER system. Apparently healthy dogs were selected and grouped in to two groups, each of which consisted of six dogs (group I and group II). The mean latency for I, II, III, IV and waves V were 1.78±17, 2.74±0.10, 3.70±0.19, 4.69±0.11, and 5.75±0.15 ms in group I, and 1.79±0.17, 2.79±0.18, 3.62±0.18, 4.77±0.14, and 5.69±0.17 ms in group II, respectively. The mean inter peak latencies for the I-III, III-V and I-V intervals were 1.91±0.27, 2.04±0.35, and 3.99±0.22 ms in group I and 1.89±0.20, 2.01±0.26, and 3.87±0.24 ms in group II, respectively. On BAER analysis all the dogs were found to be healthy and free from deafness.