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Normal Vestibulo-Ocular Reflex (VOR) gain measured using Video Head Impulse Test (vHIT) in healthly young adults,

Introduction: Many new objective tests to assess the function of specific structures of the vestibular organ are currently adopted in vestibular clinics. One of the objective assessments include the video head impulse test (vHIT) where gain & velocity responses of eye relative to the head moveme...

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Main Authors: Jamaluddin, Saiful Adli, Omar, Nor Amira
Format: Article
Language:English
Published: 2019
Subjects:
RF Otorhinolaryngology
Online Access:http://irep.iium.edu.my/78295/9/78295_Normal%20Vestibulo-Ocular%20Reflex.pdf
http://irep.iium.edu.my/78295/
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spelling my.iium.irep.782952022-04-07T04:07:16Z http://irep.iium.edu.my/78295/ Normal Vestibulo-Ocular Reflex (VOR) gain measured using Video Head Impulse Test (vHIT) in healthly young adults, Jamaluddin, Saiful Adli Omar, Nor Amira RF Otorhinolaryngology Introduction: Many new objective tests to assess the function of specific structures of the vestibular organ are currently adopted in vestibular clinics. One of the objective assessments include the video head impulse test (vHIT) where gain & velocity responses of eye relative to the head movements are recorded using an infrared camera. Methods: Thirty normal hearing subjects age between 18 to 25 years old participated in this study. At least ten Lateral, Left Anterior Right Posterior (LARP), and Right Anterior Left Posterior (RALP) responses were recorded for each participant by making small and rapid unpredictable head movements. Results: The average velocity gain for Lateral responses at 40 ms, 60 ms and 80 ms were 1.05 ± 0.003, 1.03 ± 0.002 and 1.01 ± 0.003 respectively. The LARP average velocity regression were 1.01 ± 0.24 for Left Anterior and 1.05 ± 0.25 for Right Posterior, with an average gain asymmetry of 5.13%. The RALP average velocity regression were 1.08 ± 0.31 for Right Anterior and 1.12 ± 0.30 for Left Posterior, with an average gain asymmetry of 5.87%. One sample T-test were conducted to compare Lateral responses to a previous study by Mossman et al. (2015) where significant differences in velocity gain at 60 ms and 80 ms between studies were found where, t (59) = 5.56, p <0.01 and t (59) = 2.86, p < 0.01 respectively. Conclusion: This indicates the importance of establishing on-site norms for every clinical settings as techniques used and equipment differences could affect the results. 2019-12 Article PeerReviewed application/pdf en http://irep.iium.edu.my/78295/9/78295_Normal%20Vestibulo-Ocular%20Reflex.pdf Jamaluddin, Saiful Adli and Omar, Nor Amira (2019) Normal Vestibulo-Ocular Reflex (VOR) gain measured using Video Head Impulse Test (vHIT) in healthly young adults,. International Medical Journal of Malaysia, 18 (3). pp. 88-94.
institution Universiti Islam Antarabangsa Malaysia
building IIUM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider International Islamic University Malaysia
content_source IIUM Repository (IREP)
url_provider http://irep.iium.edu.my/
language English
topic RF Otorhinolaryngology
spellingShingle RF Otorhinolaryngology
Jamaluddin, Saiful Adli
Omar, Nor Amira
Normal Vestibulo-Ocular Reflex (VOR) gain measured using Video Head Impulse Test (vHIT) in healthly young adults,
description Introduction: Many new objective tests to assess the function of specific structures of the vestibular organ are currently adopted in vestibular clinics. One of the objective assessments include the video head impulse test (vHIT) where gain & velocity responses of eye relative to the head movements are recorded using an infrared camera. Methods: Thirty normal hearing subjects age between 18 to 25 years old participated in this study. At least ten Lateral, Left Anterior Right Posterior (LARP), and Right Anterior Left Posterior (RALP) responses were recorded for each participant by making small and rapid unpredictable head movements. Results: The average velocity gain for Lateral responses at 40 ms, 60 ms and 80 ms were 1.05 ± 0.003, 1.03 ± 0.002 and 1.01 ± 0.003 respectively. The LARP average velocity regression were 1.01 ± 0.24 for Left Anterior and 1.05 ± 0.25 for Right Posterior, with an average gain asymmetry of 5.13%. The RALP average velocity regression were 1.08 ± 0.31 for Right Anterior and 1.12 ± 0.30 for Left Posterior, with an average gain asymmetry of 5.87%. One sample T-test were conducted to compare Lateral responses to a previous study by Mossman et al. (2015) where significant differences in velocity gain at 60 ms and 80 ms between studies were found where, t (59) = 5.56, p <0.01 and t (59) = 2.86, p < 0.01 respectively. Conclusion: This indicates the importance of establishing on-site norms for every clinical settings as techniques used and equipment differences could affect the results.
format Article
author Jamaluddin, Saiful Adli
Omar, Nor Amira
author_facet Jamaluddin, Saiful Adli
Omar, Nor Amira
author_sort Jamaluddin, Saiful Adli
title Normal Vestibulo-Ocular Reflex (VOR) gain measured using Video Head Impulse Test (vHIT) in healthly young adults,
title_short Normal Vestibulo-Ocular Reflex (VOR) gain measured using Video Head Impulse Test (vHIT) in healthly young adults,
title_full Normal Vestibulo-Ocular Reflex (VOR) gain measured using Video Head Impulse Test (vHIT) in healthly young adults,
title_fullStr Normal Vestibulo-Ocular Reflex (VOR) gain measured using Video Head Impulse Test (vHIT) in healthly young adults,
title_full_unstemmed Normal Vestibulo-Ocular Reflex (VOR) gain measured using Video Head Impulse Test (vHIT) in healthly young adults,
title_sort normal vestibulo-ocular reflex (vor) gain measured using video head impulse test (vhit) in healthly young adults,
publishDate 2019
url http://irep.iium.edu.my/78295/9/78295_Normal%20Vestibulo-Ocular%20Reflex.pdf
http://irep.iium.edu.my/78295/
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score 13.211869

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