Research in Vestibular Science

Original Articles

Satisfaction and Effect Research on Virtual Reality-Based Vestibular Exercise for the Elderly Patients with Chronic Unilateral Vestibulopathy: Kwang-Dong Choi, Seo-Young Choi; Res Vestib Sci. 2020;19(4):127-132. Published online December 15, 2020; DOI: https://doi.org/10.21790/rvs.2020.19.4.127

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Abstract PDF: Objectives
To survey the satisfaction of customized vestibular exercise using virtual reality system with mobile head-mounted display (HMD) in the elderly patients with chronic unilateral vestibulopathy, we analyzed questionnaires before and after exercise.
Methods
Sixteen patients (male, 6; median age, 69 years [interquartile range, 65–75 years]) with chronic unilateral vestibulopathy were prospectively enrolled from March 1 to December 31 in 2018. They exercised once a week for 20 to 25 minutes for 4 weeks using the HMD inserted the virtual reality exercise program. Dizziness visual analogue scale (DAS), Korean vestibular disorders activities of daily living scale (ADL), and visual vertigo analogue scale (VVAS) were performed before and after the exercise. After all of the program, the patients were surveyed to measure the satisfaction for the tool and effect of exercise.
Results
DAS, ADL, and VVAS were significantly improved after the vestibular exercise. No one answered unsatisfactory, and at least 62.5% of the patients satisfied the used tool and exercise program. The patients of 50% answered that they satisfied or very satisfied to the efficacy of exercise program. The patients who recovered VVAS more after the exercise were more satisfied to our tools and efficacy of exercise program.
Conclusions
Customized vestibular exercise using virtual reality system with HMD can not only improve dizziness and quality of life, but also made more satisfied to the elderly patients with chronic unilateral vestibulopathy.

Factors Associated with Patient Satisfaction in Customized Vestibular Exercise: A Pilot Study: Hye Soo Ryu, Min Young Lee, Jae Yun Jung, Ji Eun Choi; Res Vestib Sci. 2019;18(3):71-77. Published online September 15, 2019; DOI: https://doi.org/10.21790/rvs.2019.18.3.71; Retraction in: Res Vestib Sci 2020;19(4):149

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Customized Vestibular Rehabilitation in the Patients with Bilateral Vestibulopathy: A Pilot Study in One Referred Center: Kwang-Dong Choi, Seo-Young Choi; Res Vestib Sci. 2019;18(3):64-70. Published online September 15, 2019; DOI: https://doi.org/10.21790/rvs.2019.18.3.64

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Abstract PDF: Objectives
Bilateral vestibulopathy is characterized with unsteadiness and oscillopsia when walking or standing, worsening in darkness and/or on uneven ground. To establish the effect of customized vestibular rehabilitation in bilateral vestibulopathy, we analyzed the questionnaires and functional status before and after treatment.
Methods
Among 53 patients with customized vestibular rehabilitation from January 1st to November 30th in 2018, 6 patients (3 males; median age, 71 years; range, 54–75 years) who regularly exercised with good compliance were retrospectively enrolled. They were educated and trained the customized vestibular rehabilitation once a month or two by a supervisor during 40 minutes, and then exercised at home for 30 minutes over 5 days in a week. Dizziness handicap inventory (DHI), Korean vestibular disorders activities of daily living scale (vADL), Beck’s depression index (BDI), test for dynamic visual acuity (DVA), and Timed Up and Go test (TUG) were performed before and after the customized vestibular rehabilitation.
Results
The patients exercised for median 5.5 months (range, 2–10 months) with the customized methods of vestibular rehabilitation, which included gaze and posture stabilization and gait control exercises. DHI score and TUG was improved after rehabilitation (DHI before vs. after rehabilitation=33 vs. 16, p=0.027, TUG before vs. after rehabilitation=12 vs. 10, p=0.026). BDI, DVA, and vADL scores did not differ between before and after treatment.
Conclusions
Customized vestibular rehabilitation can improve dizziness and balance state in bilateral vestibulopathy. The steady exercises adapted individual peculiarities is the most important for vestibular rehabilitation.

Reviews

Vestibular Rehabilitation after Traumatic Head Injury with Dizziness: Sung Kyun Kim, Seok Min Hong; Res Vestib Sci. 2019;18(2):32-37. Published online June 15, 2019; DOI: https://doi.org/10.21790/rvs.2019.18.2.32

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Abstract PDF: The vestibular symptoms such as dizziness and imbalance that occurred after traumatic head/brain injury were caused by a combination of central factors such as abnormalities of white matter, diffuse axonal injury and microhemorrhage, and peripheral factors like decreased vestibulo-ocular reflex caused by the energy transmitted to the semicircular canal and otolith organs. These symptoms can affect on the patient's overall physical, cognitive, emotional, and quality of life. There have been reports that vestibular rehabilitation for the treatment of dizziness and imbalance after head trauma can promote vestibular compensation, stabilize of the gaze movements, and also affect the treatment outcomes of the associated injuries. The frequency, duration, and number of people participating in vestibular rehabilitation varied with each study, and physical therapy, occupational therapy, cognitive counseling, medication treatment, duration of treatment for associated injuries were also variable. Most studies have shown that many patients who get the vestibular rehabilitation have a significantly reduced time to return to work and sports activities, and may be able to speed up the recovery of vestibular symptoms. However, further research is needed on its long-term effects. In addition, patients with traumatic head/brain injuries are more susceptible to injuries of other organs as well as vestibular disorders, therefore consideration of treatment planning for associated injuries including precise evaluation mental support, and cognitive therapy is expected to be more effective with vestibular rehabilitation therapy.

Review for Update on Vestibular Rehabilitation: Eun Ju Jeon; Res Vestib Sci. 2016;15(2):31-38. Published online June 15, 2016

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Abstract PDF: Vestibular rehabilitation (VR) is valuable tool to manage balance problem in various kinds of diseases. Over the last decades, numerous studies on the effect of VR have been reported. Recently, systematic analysis integrating the individual studies have been tried and the results suggest that VR is safe and effective management for the acute/chronic and unilateral/bilateral peripheral vestibular dysfunction, and also for the elderly people. VR relieves dizziness and improves gaze stability, postural stability, parameters of gait, and activities of daily living. Currently released "Clinical practice guideline of VR on peripheral vestibular dysfunction" support and assist the use of VR in clinical field. More research is needed to develop uniform evaluation tool to measure the symptomatic and functional status of the patients and individualized efficient rehabilitation programs. It is expected that device for VR incorporating new technologies such as virtual reality will be developed in near future.

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