Brainstem auditory evoked responses in healthy Argentine Mastiff dogs recorded with surface electrodes

Armasu, Mihaela; Musteață, Mihai; Stanciu, Gabriela Dumitriţa; Mocanu, Diana; Solcan, G.

doi:10.1590/1678-4162-8379

Cited by 6 publications

(11 citation statements)

References 11 publications

(13 reference statements)

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“…In the present study, the observed values of the wave latencies and intervals are lower than those described previously in other species like dogs (e.g., 1.098 ± 0.025 ms for latency I and 3.827 ± 0.226 ms for latency V [6] or 1.59 ± 0.1 ms for latency I and 5.56 ± 0.19 ms for latency V [19]) and ferrets where a value of 1.1 ± 0.09 ms for wave I latency and 3.8 ± 0.21 ms for wave V latency was reported [4]. Regarding the amplitudes, their values were similar or smaller than in other reports.…”

Section: Discussioncontrasting

confidence: 91%

“…In our individuals, waves' morphology (wave I, II, III and V) ( Figure 1) was similar to the one described in dogs, cats, and other mammals [6][7][8]12,13]. In ferrets, Piazza et al (2014) observed that peak III consists of two peaks but that does not seem to be the case in our individuals.…”

Section: Discussionsupporting

confidence: 86%

“…Regarding the amplitudes, their values were similar or smaller than in other reports. For example, wave I amplitude was 1.6 ± 0.36 µV in ferrets [4] and 2.356 ± 0.463 in dogs [6]. However, in clinical conditions, the amplitudes are usually assessed by comparison with the contralateral ones than accordingly with a specific reference value.…”

Section: Discussionmentioning

confidence: 99%

“…Impedance was kept below 5 Ω and alternating 0.1 ms click stimuli were applied through foam earphones inserted in each auditory canal. Stimulus intensity was set at 90 dB SPL; in monaural recording, the non-tested ear was masked by white noise with an intensity of 50 dB SPL to eliminate the crossover effect [6][7][8][9]. Each waveform resulted was an average of 1000 stimulations.…”

Section: Baer System and Electrodesmentioning

confidence: 99%

“…Audiogram testing uses different intensities for the auditive stimulus. For neurolocalization purposes, a standard intensity (e.g., 90 dB sound pressure level (SPL) [4][5][6][7]) is preferred. To present, in the absence of reference values, the electrical activity of these structures can only be interpreted by comparison with values obtained contralaterally.…”

Section: Introductionmentioning

confidence: 99%

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Brainstem Auditory Evoked Potentials in Raccoon Dogs (Nyctereutes procynoides)

Ștefănescu

Roman

Miron

et al. 2020

Animals

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Raccoon dogs (Nyctereutes procynoides) are canids indigenous to Eastern Asia being one of the most invasive non-native animals in Europe and potential vectors for several hazardous parasitic and viral diseases. To present, there is a lack of studies regarding objective techniques used to appreciate the integrity and functionality of the nervous system in this species. Brainstem auditory evoked potentials (BAER) is a cost-effective, quick and noninvasive technique to assess the functionality of nervous system. The aim of the study is to provide reference values and evaluates the reliability of BAER recording with needle electrodes in clinically healthy raccoon dogs. Nine individuals were investigated for BAER under xylazine and ketamine general anesthesia. Four waves (I, II, III and V) were identified and evaluated for latencies, morphologically similarity to those previously reported for other species (dogs, horses, cats, and ferret). Our data can be used in further studies to asses objectively the auditory system function in raccoon dogs.

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Section: Discussioncontrasting

confidence: 91%

Section: Discussionsupporting

confidence: 86%

Section: Discussionmentioning

confidence: 99%

Section: Baer System and Electrodesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Brainstem Auditory Evoked Potentials in Raccoon Dogs (Nyctereutes procynoides)

Ștefănescu

Roman

Miron

et al. 2020

Animals

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A Comparative Study of Insert Earphones and Circumaural Earphones in the Brainstem Auditory-Evoked Response Test of Dogs

Kim¹,

Song²,

An³

et al. 2020

J Vet Clin

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We aimed to investigate the differences in the efficacy of insert and circumaural earphones when performing the brainstem auditory evoked response (BAER) test with dogs. Hearing loss may occur congenitally or secondarily in dogs. The BAER test, unlike the classical ethological method, is the most reliable diagnostic tool to assess canine auditory function. Furthermore, there are certain advantages of using insert earphones rather than the standard, circumaural earphones. We subjected eight dogs to the BAER test with insert earphones and circumaural earphones. The result revealed that the latency of waves was delayed with an insert earphone. The inter-peak latency did not show any significant differences between the two transducers, and the threshold was higher when using an insert earphone. Moreover, the circumaural headphones produced a greater degree of crossover effect than the insert earphones, and this cross-over effect could affect the outcomes of the BAER test. Considering these results, we concluded that insert earphones may be more appropriate when performing the canine BAER test.

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A Comparative Study on Brainstem Auditory-Evoked Response between Dogs and Cats

Lee,

Choi,

Jung

2023

J Vet Clin

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Hearing assessment is critical in dogs and cats. Hearing loss in dogs and cats may be congenital or secondary to a central nervous system disorder or ear disease. The brainstem auditory-evoked response (BAER) test has been developed as an electrophysiological test for auditory function assessment. Modern BAER equipment is based on a computerized system. Thus, auditory function assessment can be performed using this objective, safe, and noninvasive method. No study has yet investigated the interspecies differences between BAER test results of dogs and cats. Therefore, the present study aimed to analyze the differences in BAER test results between dogs and cats. The test was conducted on four healthy adult dogs and four healthy adult cats. Regarding latency, lower values were obtained for all waveforms above 50 dB in cats compared to dogs. Regarding amplitude, cats showed higher values than dogs at intensities above 50 dB. Through a comparative analysis in this study, it was concluded that the two species had statistically significant differences. The BAER data of dogs cannot be applied to cats, and vice versa.

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Brainstem auditory evoked responses in healthy Argentine Mastiff dogs recorded with surface electrodes

Abstract: Communication

Cited by 6 publications

References 11 publications

Brainstem Auditory Evoked Potentials in Raccoon Dogs (Nyctereutes procynoides)

Brainstem Auditory Evoked Potentials in Raccoon Dogs (Nyctereutes procynoides)

A Comparative Study of Insert Earphones and Circumaural Earphones in the Brainstem Auditory-Evoked Response Test of Dogs

A Comparative Study on Brainstem Auditory-Evoked Response between Dogs and Cats

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