Brain stem auditory evoked response-evaluation of hearing loss

1989 ◽  
Vol 41 (2) ◽  
pp. 54-58
Author(s):  
Deepak Gupta ◽  
S. K. Vishwakarma
Keyword(s):  
Hearing Loss ◽  
Brain Stem ◽  
Evoked Response ◽  
Response Evaluation ◽  
Auditory Evoked Response

Brain Stem Auditory Evoked Response

1979 ◽  
Vol 88 (4_suppl) ◽  
pp. 11-21 ◽  
Author(s):  
Kevin T. Kavanagh ◽  
James V. Beardsley
Keyword(s):  
Hearing Loss ◽  
Brain Stem ◽  
Normal Wave ◽  
Sound Intensity ◽  
Evoked Response ◽  
Sound Stimulation ◽  
Auditory Evoked Response ◽  
Occult Lesion ◽  
Intensity Functions ◽  
Wave Latency

This paper studies the effect of otologic disease on the brain stem auditory evoked response (BAER). Both conductive and neurosensory hearing losses are analyzed by plotting wave V latencies and amplitudes as a function of sound intensity. It was found that the BAER is elicited primarily by frequencies greater than 2000 Hz. Conductive hearing losses produce a latency intensity function which approaches the norm with high decibel stimulation. Neurosensory losses produce a variety of latency intensity functions. In determining the degree of hearing loss, wave threshold is found to be the best index. Wave latency at high decibels is found to have little correspondence to degree of neurosensory loss; wave amplitude is highly variable among subjects but still a useful indicator for detecting pathology. Between-ear comparisons of wave latencies elicited by high decibel sound stimulation suggest that unilateral nonrecruiting or partially recruiting hearing losses will result in a latency difference. This method can be used to detect unilateral acoustic neuromas, and the false positives found by this technique are probably caused by other unilateral nonrecruiting hearing losses. In evaluating neurological disease, and especially when testing for a second occult lesion in multiple sclerosis (MS) an audiogram should be obtained because the criterion of a normal wave latency with decreased amplitude for the diagnosis of MS can be mimicked by peripheral hearing loss.

Brain stem auditory evoked response—A study in parameters

1989 ◽  
Vol 41 (1) ◽  
pp. 6-8 ◽  
Author(s):  
Deepak Gupta ◽  
S. K. Vishwakarma
Keyword(s):  
Brain Stem ◽  
Evoked Response ◽  
Auditory Evoked Response

The Brain Stem Auditory-Evoked Response in Neonates: A Normative Study

1978 ◽  
Vol 86 (4_suppl) ◽  
pp. ORL-637-ORL-637 ◽  
Author(s):  
Barbara Cone ◽  
Kurt Hecox
Keyword(s):  
Brain Stem ◽  
Evoked Response ◽  
Normative Study ◽  
Auditory Evoked Response ◽  
The Brain

scholarly journals HEARING LOSS IN TERM NEONATES WITH HYPERBILIRUBINAEMIA. FOLLOW-UP BASED ON BRAIN STEM EVOKED RESPONSE (BERA) AND OTOEMISSIONS ACUSTICS. 882

1997 ◽  
Vol 41 ◽  
pp. 149-149
Author(s):  
Clery B. Gallacci ◽  
Marina S. Figueiredo ◽  
Abrahão Berezin ◽  
Christiane Soncin ◽  
Adriana Ganz ◽  
...  
Keyword(s):  
Hearing Loss ◽  
Brain Stem ◽  
Evoked Response ◽  
Term Neonates ◽  
Brain Stem Evoked Response

The effects of four, commercial ceruminolytic agents on the middle ear

1997 ◽  
Vol 33 (6) ◽  
pp. 479-486 ◽  
Author(s):  
PD Mansfield ◽  
JE Steiss ◽  
TR Boosinger ◽  
AE Marshall
Keyword(s):  
Hearing Loss ◽  
Brain Stem ◽  
Histological Examination ◽  
Middle Ear ◽  
Guinea Pigs ◽  
Physiological Saline ◽  
Abnormal Finding ◽  
Inflammatory Reactions ◽  
Auditory Evoked Response ◽  
Hearing Function

Four, commercially available ceruminolytic agents and physiological saline were screened for ototoxic and inflammatory reactions on the middle ear mucosae of guinea pigs (n = 38) and dogs (n = 24). Each solution was injected transtympanically in anesthetized animals. The effects were assessed by brain stem auditory evoked response (BAER) tests to evaluate hearing function and by histological examination of the middle ear structures. Varying degrees of hearing loss and inflammation were observed in some guinea pigs and dogs treated with solutions A, C, and D, whereas no abnormal finding was associated with solution B or saline.

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