Brainstem auditory evoked responses in rats with experimental chronic renal failure

1989 ◽  
Vol 76 (4) ◽  
pp. 415-417 ◽  
Author(s):  
Y. Shvili ◽  
U. Gafter ◽  
Y. Zohar ◽  
Y. P. Talmi ◽  
J. Levi

1. Chronic renal failure was induced in rats by five-sixths nephrectomy. Brainstem auditory evoked response (BAER) was recorded after 3 months. 2. In the uraemic rats latency of the first wave was delayed, while the interpeak I-V latency was similar to that of the controls. 3. These results suggest a delayed neural conduction along the acoustic nerve or cochlear changes in uraemic rats.

1982 ◽  
Vol 40 (1) ◽  
pp. 21-28 ◽  
Author(s):  
Carlos A. M. Guerreiro ◽  
Bruce L. Ehrenberg

The tecnique that we use for eliciting brainstem auditory evoked responses (BAERs) is described. BAERs are a non-invasive and reliable clinical test when carefully performed. This test is indicated in the evaluation of disorders which may potentially involve the brainstem such as coma, multiple sclerosis posterior fossa tumors and others. Unsuspected lesions with normal radiologic studies (including CT-scan) can be revealed by the BAER.


Nephron ◽  
1989 ◽  
Vol 53 (1) ◽  
pp. 2-5 ◽  
Author(s):  
U. Gafter ◽  
Y. Shvili ◽  
J. Levi ◽  
Y. Talmi ◽  
Y. Zohar

1979 ◽  
Vol 22 (2) ◽  
pp. 403-411 ◽  
Author(s):  
A. Yonovitz ◽  
C. L. Thompson ◽  
Joseph Lozar

Two studies were devised to determine if objective quantification of the masking level difference is possible using the auditory evoked response (AER). In the first study, click stimuli were presented under three conditions: both the stimulus and masker in phase (SoNo); stimulus in phase, masker antiphasic (SoN π ); and stimulus antiphasic with masker in phase (S π No). In the second study 1000 Hz pure-tone stimuli were presented under SoNo and S π No phasic conditions. AER’s were obtained at various intensity levels for each condition. The AER demonstrated differences in N 1 -P 2 amplitudes evoked by the homophasic and antiphasic conditions for threshold and suprathreshold levels.


1984 ◽  
Vol 57 (6) ◽  
pp. 507-514 ◽  
Author(s):  
P.M Rossini ◽  
E Di Stefano ◽  
A Febbo ◽  
B Di Paolo ◽  
M Basciani

2021 ◽  
Vol 65 ◽  
pp. 193-200
Author(s):  
Mudassir Anis Siddiqui ◽  
Divya Srivastava ◽  
Sandeep Choudhary

Objectives: Data available on brainstem auditory evoked response (BAER) and its correlation with biochemical parameters in patients of alcohol use disorder (AUD) in Indian population is scanty. Therefore, this study was undertaken to focus on the effects of AUD on BAER and liver enzymes. Materials and Methods: This case-control study included 40 males in the study group who had AUD and 40 healthy males in the control group in the age group of 20–60 years. The BAER was performed using octopus NCS/ EMG/EP (Clarity) machine. The levels of aspartate aminotransferase (AST), alanine aminotransferase (ALT), alkaline phosphatase and serum bilirubin were estimated in all the subjects. Results: We observed a highly significant increase in the absolute latencies of waves III and V and interpeak latencies (IPL) I-III and I-V of BAER in the patients of AUD in this study. Significant increase in the liver enzymes and especially AST/ALT ratio of patients of AUD was seen which indicated towards subclinical alcoholic hepatitis. The latencies of waves of EPs (waves III, V, IPL I-III and IPL I-V) were positively correlated with the biochemical parameters and duration of AUD. Conclusion: Our findings indicated that AUD lead to the increase in brainstem transmission time and also lead to subclinical alcoholic hepatitis which is reflected by the increase in the liver enzymes. We concluded that chronic alcohol consumption affected the auditory pathways and delayed the auditory transmission time which was suggestive of possible demyelination of auditory tracts.


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