Diagnostic Implications of Stimulus Polarity Effects on the Auditory Brainstem Response

2002 ◽  
Vol 13 (02) ◽  
pp. 072-082 ◽  
Author(s):  
Cynthia G. Fowler ◽  
Christopher D. Bauch ◽  
Wayne O. Olsen
Keyword(s):  
Mayo Clinic ◽  
Auditory Brainstem Response ◽  
Auditory Brainstem ◽  
The Other ◽  
Intersubject Variability ◽  
Acoustic Neuromas ◽  
Full Complement ◽  
Brainstem Response ◽  
Polarity Effects ◽  
Click Polarity

The purpose of this study was to determine whether clicks presented in rarefaction or condensation modes produce more accurate diaghostic information. Subjects were 20 consecutive patients who were seen at the Mayo Clinic for unilateral acoustic neuromas. The nontumor ear served as a control to minimize intersubject variability in the latencies. A standard audio logic evaluation was followed by an auditory brainstem response (ABR) test for which the stimuli were rarefaction and condensation clicks. Responses were analyzed for the presence of waves I, III, and V; absolute latencies of waves I, III, and V; interpeak intervals I–III, III–V, and I–V; and interaurallatency difference for wave V. The results indicated that measures from both polarities were similar in this set of patients and that neither click polarity provided diagnostic advantages over the other. Recommendations are to collect ABRs to both click polarities individually to obtain the full complement of waves on which to base the diagnostic impression.

scholarly journals Auditory brainstem response in gerbils submitted to ischemia and sepsis

CoDAS ◽  
2015 ◽  
Vol 27 (2) ◽  
pp. 155-159
Author(s):  
Janaina Patricio de Lima ◽  
Irineu Tadeu Velasco ◽  
Denise Frediane Barbeiro ◽  
Eliane Schochat
Keyword(s):  
Ischemic Stroke ◽  
Auditory Brainstem Response ◽  
Neuronal Death ◽  
Clinical Condition ◽  
Invasive Procedure ◽  
Auditory Brainstem ◽  
The Other ◽  
Brainstem Response ◽  
Absolute Latency ◽  
The Individual

Introduction: An ischemic stroke is a clinical condition that affects thousands of people worldwide. As a result of this injury, neuronal death can be observed, and in the natural course of recovery, the individual may develop sepsis. Sepsis is a systemic inflammatory response that can lead the patient to death. To assess the clinical condition of a patient with this condition, the Auditory Brainstem Response (ABR) can be useful, since it is not an invasive procedure, it is a fast technique and it can be done at the bedside. Purpose: To assess auditory brainstem response (ABR) latency values in gerbils subjected to ischemia and sepsis. Methods: ABR values were collected from 72 adult male gerbils, which were divided into six groups: control, sepsis, ischemia, sham, ischemia with sepsis, and sham with sepsis. For the induction of sepsis, lipopolysaccharide (LPS) was applied intraperitoneally in gerbils. The animals were anesthetized with a ketamine/xylazine combination before collection; their ABR were collected before any procedure (base collection), after ischemia, and 24 hours after the application of LPS. The absolute latency of wave IV was evaluated, and the values were compared between groups. Results: There were significant differences in the groups submitted to sepsis in the latency value of wave IV in relation with the other groups. Conclusion: ABR was sensitive to sepsis with the increase in latency of wave IV during the development of the disease in the experimental model used.

Acoustic Reflexes, Auditory Brainstem Response, and MRI in the Evaluation of Acoustic Neuromas

1996 ◽  
Vol 106 (7) ◽  
pp. 839-841 ◽  
Author(s):  
John M. Burkey ◽  
Franklin M. Rizer ◽  
Arnold G. Schuring ◽  
Michael J. Fucci ◽  
William H. Lippy
Keyword(s):  
Auditory Brainstem Response ◽  
Auditory Brainstem ◽  
Acoustic Neuromas ◽  
Acoustic Reflexes ◽  
Brainstem Response

scholarly journals The Sensitivity of Auditory Brainstem Response Testing in Small Acoustic Neuromas

1992 ◽  
Vol 102 (9) ◽  
pp. 961???964 ◽  
Author(s):  
David F. Wilson ◽  
Richard S. Hodgson ◽  
Margaret F. Gustafson ◽  
Susan Hogue ◽  
Leigh Mills
Keyword(s):  
Auditory Brainstem Response ◽  
Auditory Brainstem ◽  
Acoustic Neuromas ◽  
Brainstem Response ◽  
Response Testing

scholarly journals The Sensitivity of Auditory Brainstem Response Testing for the Diagnosis of Acoustic Neuromas

2001 ◽  
Vol 127 (1) ◽  
pp. 19 ◽  
Author(s):  
Richard J. Schmidt ◽  
Robert T. Sataloff ◽  
Jason Newman ◽  
Joseph R. Spiegel ◽  
Donald L. Myers
Keyword(s):  
Auditory Brainstem Response ◽  
Auditory Brainstem ◽  
Acoustic Neuromas ◽  
Brainstem Response ◽  
Response Testing

scholarly journals Auditory brainstem response in patients with early acoustic neuromas.

1987 ◽  
Vol 80 (1) ◽  
pp. 23-32
Author(s):  
Masahiro Fukuta ◽  
Minoru Shoji ◽  
Tatsuya Yamasoba ◽  
Dong Hee Han ◽  
Takashi Fukaya ◽  
...  
Keyword(s):  
Auditory Brainstem Response ◽  
Auditory Brainstem ◽  
Acoustic Neuromas ◽  
Brainstem Response

Auditory brainstem response in the lesser scaup, a species of diving duck

2010 ◽  
Author(s):  
Sara C. Therrien ◽  
Catherine E. Carr ◽  
Elizabeth F. Brittan-Powell ◽  
Alicia M. Wells-Berlin
Keyword(s):  
Auditory Brainstem Response ◽  
Auditory Brainstem ◽  
Diving Duck ◽  
Lesser Scaup ◽  
Brainstem Response
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