Emerging and distinct video head impulse test responses in elderly with vestibular symptoms
Introduction: Dizziness has been reported to be the most common symptom in elderly population. Video head impulse test, VHIT, allows clinicians to assess the vestibular function in elderly individuals, during their initial stages of vestibular symptoms. Inferences from VHIT responses were traditiona...
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| Format: | Article |
| Language: | English |
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Elsevier
2022-11-01
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| Series: | Brazilian Journal of Otorhinolaryngology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1808869421000562 |
| _version_ | 1828123435107090432 |
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| author | Muhammed Ayas Ahmad AlAmadi |
| author_facet | Muhammed Ayas Ahmad AlAmadi |
| author_sort | Muhammed Ayas |
| collection | DOAJ |
| description | Introduction: Dizziness has been reported to be the most common symptom in elderly population. Video head impulse test, VHIT, allows clinicians to assess the vestibular function in elderly individuals, during their initial stages of vestibular symptoms. Inferences from VHIT responses were traditionally low vestibulo-ocular reflex gain or a normal vestibulo-ocular reflex gain. However, the possibility of a third and new variant of the vestibulo-ocular reflex gain has not been clinically explored yet. Objectives: To determine and report distinct patterns of vestibulo-ocular reflex gain using VHIT in elderly individuals with vestibular symptoms. Methods: Retrospective cross-sectional study was done on a group of elderly patients who were above 70 years of age. These individuals were subjected to VHIT during their symptomatic phase. A vestibulo-ocular reflex gain value between 0.80–01.20 (Horizontal plane) was considered normal. The gain above and below this cutoff range was considered abnormal. Results: 39 elderly patients (15 males and 24 females) whose mean age range was 74.71 years were evaluated for the VHIT response. Vestibulo-ocular reflex gain obtained was categorized into three distinct patterns: (i) normal vestibulo-ocular reflex gain, (ii) reduced vestibulo- ocular reflex gain and (iii) increased vestibulo-ocular reflex gain. The mean vestibulo- ocular reflex gain for both left and right horizontal canals varied significantly between the three groups (p < 0.05). No significant effect of age and vestibulo-ocular reflex gain was noted, though vestibulo-ocular reflex gain was higher in 80 years and above age (p > 0.05). Conclusion: Elderly individuals with dizziness may show varying responses with vestibulo-ocular reflex gain during the symptomatic period. The third type of hyperactive vestibule-ocular reflex responses that emerged from the current study were potential indicators of fluid dynamic changes in the inner ear. These responses need to be explored further as it relates to new clinical markers for both peripheral and central vestibular disorders. |
| first_indexed | 2024-04-11T14:52:13Z |
| format | Article |
| id | doaj.art-ddfeefe332484cf2ad9bb49ecb91f74c |
| institution | Directory Open Access Journal |
| issn | 1808-8694 |
| language | English |
| last_indexed | 2024-04-11T14:52:13Z |
| publishDate | 2022-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Brazilian Journal of Otorhinolaryngology |
| spelling | doaj.art-ddfeefe332484cf2ad9bb49ecb91f74c2022-12-22T04:17:25ZengElsevierBrazilian Journal of Otorhinolaryngology1808-86942022-11-0188S18S23Emerging and distinct video head impulse test responses in elderly with vestibular symptomsMuhammed Ayas0Ahmad AlAmadi1University Hospital Sharjah, Audiology Unit, Sharjah, United Arab Emirates; University of Sharjah, College of Medicine, Sharjah, United Arab Emirates; Corresponding author.University of Sharjah, College of Medicine, Sharjah, United Arab Emirates; Advanced Hearing and Balance Center, Dubai, United Arab EmiratesIntroduction: Dizziness has been reported to be the most common symptom in elderly population. Video head impulse test, VHIT, allows clinicians to assess the vestibular function in elderly individuals, during their initial stages of vestibular symptoms. Inferences from VHIT responses were traditionally low vestibulo-ocular reflex gain or a normal vestibulo-ocular reflex gain. However, the possibility of a third and new variant of the vestibulo-ocular reflex gain has not been clinically explored yet. Objectives: To determine and report distinct patterns of vestibulo-ocular reflex gain using VHIT in elderly individuals with vestibular symptoms. Methods: Retrospective cross-sectional study was done on a group of elderly patients who were above 70 years of age. These individuals were subjected to VHIT during their symptomatic phase. A vestibulo-ocular reflex gain value between 0.80–01.20 (Horizontal plane) was considered normal. The gain above and below this cutoff range was considered abnormal. Results: 39 elderly patients (15 males and 24 females) whose mean age range was 74.71 years were evaluated for the VHIT response. Vestibulo-ocular reflex gain obtained was categorized into three distinct patterns: (i) normal vestibulo-ocular reflex gain, (ii) reduced vestibulo- ocular reflex gain and (iii) increased vestibulo-ocular reflex gain. The mean vestibulo- ocular reflex gain for both left and right horizontal canals varied significantly between the three groups (p < 0.05). No significant effect of age and vestibulo-ocular reflex gain was noted, though vestibulo-ocular reflex gain was higher in 80 years and above age (p > 0.05). Conclusion: Elderly individuals with dizziness may show varying responses with vestibulo-ocular reflex gain during the symptomatic period. The third type of hyperactive vestibule-ocular reflex responses that emerged from the current study were potential indicators of fluid dynamic changes in the inner ear. These responses need to be explored further as it relates to new clinical markers for both peripheral and central vestibular disorders.http://www.sciencedirect.com/science/article/pii/S1808869421000562Video head impulse testDizzinessElderlyVestibulo ocular reflex |
| spellingShingle | Muhammed Ayas Ahmad AlAmadi Emerging and distinct video head impulse test responses in elderly with vestibular symptoms Brazilian Journal of Otorhinolaryngology Video head impulse test Dizziness Elderly Vestibulo ocular reflex |
| title | Emerging and distinct video head impulse test responses in elderly with vestibular symptoms |
| title_full | Emerging and distinct video head impulse test responses in elderly with vestibular symptoms |
| title_fullStr | Emerging and distinct video head impulse test responses in elderly with vestibular symptoms |
| title_full_unstemmed | Emerging and distinct video head impulse test responses in elderly with vestibular symptoms |
| title_short | Emerging and distinct video head impulse test responses in elderly with vestibular symptoms |
| title_sort | emerging and distinct video head impulse test responses in elderly with vestibular symptoms |
| topic | Video head impulse test Dizziness Elderly Vestibulo ocular reflex |
| url | http://www.sciencedirect.com/science/article/pii/S1808869421000562 |
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