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KMID : 0361019980410010028
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Korean Journal of Otolaryngology - Head and Neck Surgery
1998 Volume.41 No. 1 p.28 ~ p.31
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Comparative Study of the Sinusoidadal Harmonic Acceleration Test and the Caloric Test in Peripheral Vestibular Disorders
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원준연/Jun Yeon Won
이광선/윤태현/김윤경/Kwang Sun Lee/Tae Hyun Yoon/Yoon Kyeong Kim
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Abstract
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Background and Objectives: The shinusoidal harmonic acceleration (SHA) test is known to be useful for differentating peripheral and central disorders and monitoring the progress of vestibular diseases. However, it is not fully know how SHA
test
results correlate with the degree of caloric response, which have been widely used and accepted as a standard test in evaluating vestibular functions. This study was designed to investigate the relationship between SHA test and caloric test in an
attempt to further elucidate the clinical significance of SHA test. Materials and Methods: Fifty-four patients who were diagnosed with peripheral vestibular disorder at Asan Medical Center participated in this study. All patients underwent
caloric tests and SHA tests. The results of both tests were compared. Results: The present study reveals that the results of the SHA test in peripheral vestibular disorder are correlated with those of the caloric test, that is, patients
with
unilateral canal paresis in the caloric test also tend to show phase leads at lower frequency and low response gain in the SHA test. Conclusion: This study could be used as a basis for further studies and for the clinical use of the SHA
test.
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KEYWORD
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