Research in Vestibular Science

Reviews

Understanding Vestibular Information Processing in Velocity-Storage Circuit and Application to Interpreting Clinical Manifestation of Vestibular Disorders: Jeong-Yoon Choi; Res Vestib Sci. 2021;20(3):81-92. Published online September 15, 2021; DOI: https://doi.org/10.21790/rvs.2021.20.3.81

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Abstract PDF: The velocity-storage circuit comprised of bilateral vestibular nucleus complexes, commissural fiber, and nodulus and uvula functions in refining the raw vestibular signal to estimate rotational velocity, gravity direction, and inertia. In this review, we pursued the functional significance of this velocity-storage circuit and how this physiologic knowledge could help us understand the clinical symptoms and signs of patients with vestibular disorders.

Update on Genetic Study of Vestibular Disorder: Jae-Hwan Choi; Res Vestib Sci. 2021;20(2):37-44. Published online June 14, 2021; DOI: https://doi.org/10.21790/rvs.2021.20.2.37

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Abstract PDF: The wide availability of next-generation sequencing has enabled a rapid progress in the discovery of genetic variants associated with many disorders. However, the contribution of genetic factors in vestibular disorders is largely unknown due to the low prevalence of familial disorders and the clinical diversity. A detailed clinical characterization of patients and a choice of proper genetic tests are required to identify the genetic contribution in vestibular disorders. In this review, we will introduce a genetic approach for vestibular disorders and update the evidences to support the genetic contribution in vestibular disorders.

Original Article

Comparison of Suppression Head Impulse and Conventional Head Impulse Test Protocols: Kyung Jin Roh, Ju Young Kim, Eun Jin Son; Res Vestib Sci. 2019;18(4):91-97. Published online December 15, 2019; DOI: https://doi.org/10.21790/rvs.2019.18.4.91

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8 Crossref

Abstract PDF

Objectives
The head impulse test paradigm (HIMP) assesses semicircular canal function by measuring compensatory saccades during head movements as an indication of an impaired vestibulo-ocular reflex (VOR). The recently introduced suppression head impulse test paradigm (SHIMP) examines anticompensatory saccades after head movements as a measure of intact VOR. Thus, HIMP measures a decrease in vestibular function, whereas SHIMP measures residual function. We evaluated the effectiveness of SHIMP, compared HIMP and SHIMP results in the same subjects, and examined the relationship between the 2 tests.
Methods
HIMP and SHIMP protocols were performed in 73 patients. The patients were instructed to maintain their gaze on a fixed target for the HIMP, or a moving target for the SHIMP during head impulses. The VOR gain and saccade parameters were compared.
Results
HIMP and SHIMP data were obtained for all ears except in 3 patients. The VOR gain with SHIMP was smaller than for HIMP, but showed significant correlation (r=0.8356, p＜0.001) and substantial agreement (k=0.79). However, neither the percentage of saccades (appearance of HIMP compensatory saccades and reduction of SHIMP anticompensatory saccades) nor their amplitudes were correlated between the 2 tests.
Conclusions
The HIMP and SHIMP protocols are valuable tools to evaluate VOR during high-velocity head movements. Our results confirm their agreement as measures of VOR gain during head impulses, but also show that the relationship between compensatory and anticompensatory saccades is not straightforward. Thus, care should be taken during clinical interpretation of either protocol.

Citations

Citations to this article as recorded by

Normalization of the Suppression Head Impulse Test (SHIMP) and its correlation with the Head Impulse Test (HIMP) in healthy adults
Suheda Baran, Gulce Kirazli, Pelin Pistav Akmese, Nese Celebisoy, Tayfun Kirazli
Journal of Vestibular Research.2024; 34(1): 15. CrossRef
Test-retest reliability of suppression head impulse paradigm (SHIMP) in healthy individuals
Aishwarya Nagarajan, Shashish Ghimire, Varsha Sam Elizabeth, Sujeet Kumar Sinha
Hearing, Balance and Communication.2023; 21(4): 312. CrossRef
A nystagmus extraction system using artificial intelligence for video-nystagmography
Yerin Lee, Sena Lee, Junghun Han, Young Joon Seo, Sejung Yang
Scientific Reports.2023;[Epub] CrossRef
Efeito da idade no equilíbrio corporal e nos resultados do vídeo teste do impulso cefálico em pacientes com insuficiência cardíaca
Gizele Francisco Ferreira do Nascimento, José Diniz Júnior, Rosiane Viana Zuza Diniz, Miguel Angelo Hyppolito, Erika Barioni Mantello
Audiology - Communication Research.2023;[Epub] CrossRef
Effect of age on body balance and on the results of the video head impulse test in patients with heart failure
Gizele Francisco Ferreira do Nascimento, José Diniz Júnior, Rosiane Viana Zuza Diniz, Miguel Angelo Hyppolito, Erika Barioni Mantello
Audiology - Communication Research.2023;[Epub] CrossRef
Development of An Algorithm for Slippage-Induced Motion Artifacts Reduction in Video-Nystagmography
Yerin Lee, Young Joon Seo, Sejung Yang
Research in Vestibular Science.2022; 21(4): 104. CrossRef
VOR gain of lateral semicircular canal using video head impulse test in acute unilateral vestibular hypofunction: A systematic review
Mohamad Alfarghal, Mohammed Abdullah Algarni, Sujeet Kumar Sinha, Aishwarya Nagarajan
Frontiers in Neurology.2022;[Epub] CrossRef
Evaluation of high frequency horizontal VOR parameters in patients with chronic bilateral and unilateral peripheral vestibulopathy: a preliminary study
Gulce Kirazli, Sevinc Hepkarsi, Tayfun Kirazli
Acta Oto-Laryngologica.2020; 140(12): 1007. CrossRef

Review

Dizziness in Traumatic Brain Injury: Visual-Vestibular Dysfunction, Neurotological Approach: Seong-Hae Jeong; Res Vestib Sci. 2019;18(2):27-31. Published online June 15, 2019; DOI: https://doi.org/10.21790/rvs.2019.18.2.27

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Abstract PDF: Traumatic brain injury (TBI) could give rise to variable clinical manifestations based on the involved structures of our bodies. Although there are no structural abnormalities proven, the patients with mild TBI suffer from chronic dizziness and imbalance. Herein, I will discuss the visuo-vestibular interaction and neurotological finding in TBI, which could demonstrate the clue to the diagnosis and management in dizzy patients with TBI.

Original Article

The Effect, Compliance and Satisfaction of Customized Vestibular Rehabilitation: A Single Center Experience: Hyung Lee, Hyun Ah Kim; Res Vestib Sci. 2019;18(1):14-18. Published online March 15, 2019; DOI: https://doi.org/10.21790/rvs.2019.18.1.14

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106 Download
2 Crossref

Abstract PDF

Objectives
Over the last decades, numerous studies on the effect of vestibular rehabilitation (VR) have been reported in western countries, but there has been no report about real experiences of customized VR in Korea. The aim of this study was to analyze of the efficacy, compliance and satisfaction in patients with acute and chronic dizziness.
Methods
Patients with dizziness were treated with a customized VR at least 4 weeks. Subjects were assessed before and after at least 4 weeks of customized VR for visual analogue scale (VAS) and disability scale (DS). Patients were asked to score the satisfaction of their treatment as 1 (very poor) to 5 (excellent). Compliance to exercise program were graded as 1 (regularly performed), 2 (frequently performed), or 3 (rarely performed).
Results
Thirty-two patients with dizziness were included. Diagnosis of patients were vestibular migraine (n=5), Meniere’s disease (n=2), vestibular neuritis (n=10), persistent perceptual positional dizziness (n=10), bilateral vestibulopathy (n=3), and central dizziness (n=2). Mean VAS and DS before VR were 15.3 and 2.4, respectively. Mean VAS and DS after VR were 4.5 and 0.7, respectively. Significant improvements in VAS and DS were observed after VR (p=0.00). Mean treatment satisfaction score was 3.3±1.0 and mean compliance score was 2.3±0.8. Satisfaction to VR showed positive correlation with patient’s compliance. (p=0.00, r=0.644)
Conclusions
Significant improvements were seen in symptom and disability in patients with acute and chronic dizziness after customized VR. Patients showed moderate compliance to exercise program and overall satisfaction was fair.

Citations

Citations to this article as recorded by

A Survey of Educational, Clinical Background in Vestibular Rehabilitation Therapy of Korean Physical Therapists
Migyoung Kweon, Youn Bum Sung
The Journal of Korean Academy of Physical Therapy .2023; 30(2): 65. CrossRef
Factors Associated with Patient Satisfaction in Customized Vestibular Exercise: A Pilot Study
Hye Soo Ryu, Min Young Lee, Jae Yun Jung, Ji Eun Choi
Research in Vestibular Science.2019; 18(3): 71. CrossRef

Review

Posttraumatic Peripheral Vertigo: Soyeon Yoon, Mi Joo Kim, Minbum Kim; Res Vestib Sci. 2018;17(4):125-129. Published online December 21, 2018; DOI: https://doi.org/10.21790/rvs.2018.17.4.125

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Abstract PDF: Posttraumatic vertigo can be defined as the vertiginous disorder occurred after head and neck trauma without other pre-existing vestibular disorder. Central, peripheral, and combined deficits might cause this condition. Especially, various peripheral vestibulopathies are possible causes of posttraumatic vertigo; benign paroxysmal positional vertigo, temporal bone fracture, perilymphatic fistula, labyrinthine concussion, posttraumatic hydrops, and cervical vertigo. Since the differential diagnosis of the posttraumatic vertigo is often difficult, it is essential to acquire knowledge of their pathophysiology and clinical features. In this review, peripheral vestibulopathy as the possible causes of posttraumatic vertigo were described according to the current literature.

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