Rehab Centers: The Effect of Vestibular Rehabilitation on Adults With Bilateral Vestibular Hypofunction: A Systematic Review.

The effect of vestibular rehabilitation on adults with bilateral vestibular hypofunction: A systematic review.

Filed under: Rehab Centers

J Vestib Res. 2012 Jan 1; 22(5): 283-98
Porciuncula F, Johnson CC, Glickman LB

Purpose: Adults with bilateral vestibular hypofunction (BVH) experience significant disability. A systematic review assessed evidence for vestibular rehabilitation (VR). Number of studies: 14 studies. Materials/methods: Search identification of studies based on inclusion criteria: (a) population: adults with BVH of peripheral origin; (b) interventions: vestibular exercises, balance training, education, or sensory prosthetics; (c) comparison: single interventions or compared to another psychophysical intervention, placebo, or healthy population; (d) outcomes: based on International Classification of Functioning, Disability and Health (ICF) Body Functions and Structure, Activity, and Participation; (e) study designs: prospective and interventional, Levels of Evidence I to III per Centre of Evidence-based Medicine grading. Coding and appraisal based on ICF framework and strength of evidence synthesis. Results: Five Level II studies and nine Level III studies: All had outcomes on gaze and postural stability, five with outcomes on gait speed and perceptions of oscillopsia and disequilibrium.Conclusions: (a) Moderate evidence strength on improved gaze and postural stability (ICF-Body Functions) following exercise-based VR; (b) Inadequate number of studies supporting benefit of VR on ICF-Participation outcomes; (c) Sensory prosthetics in early phase of development. Clinical relevance: Moderate evidence strength in support of VR from an impairment level; clinical practice and research needed to explore interventions extending to ICF-Activity and Participation.
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The effect of virtual reality on visual vertigo symptoms in patients with peripheral vestibular dysfunction: A pilot study.

Filed under: Rehab Centers

J Vestib Res. 2012 Jan 1; 22(5): 273-81
Pavlou M, Kanegaonkar RG, Swapp D, Bamiou DE, Slater M, Luxon LM

Individuals with vestibular dysfunction may experience visual vertigo (VV), in which symptoms are provoked or exacerbated by excessive or disorientating visual stimuli (e.g. supermarkets). VV can significantly improve when customized vestibular rehabilitation exercises are combined with exposure to optokinetic stimuli. Virtual reality (VR), which immerses patients in realistic, visually challenging environments, has also been suggested as an adjunct to VR to improve VV symptoms. This pilot study compared the responses of sixteen patients with unilateral peripheral vestibular disorder randomly allocated to a VR regime incorporating exposure to a static (Group S) or dynamic (Group D) VR environment. Participants practiced vestibular exercises, twice weekly for four weeks, inside a static (Group S) or dynamic (Group D) virtual crowded square environment, presented in an immersive projection theatre (IPT), and received a vestibular exercise program to practice on days not attending clinic. A third Group D1 completed both the static and dynamic VR training. Treatment response was assessed with the Dynamic Gait Index and questionnaires concerning symptom triggers and psychological state. At final assessment, significant between-group differences were noted between Groups D (p=0.001) and D1 (p=0.03) compared to Group S for VV symptoms with the former two showing a significant 59.2% and 25.8% improvement respectively compared to 1.6% for the latter. Depression scores improved only for Group S (p=0.01) while a trend towards significance was noted for Group D regarding anxiety scores (p=0.07). Conclusion: Exposure to dynamic VR environments should be considered as a useful adjunct to vestibular rehabilitation programs for patients with peripheral vestibular disorders and VV symptoms.
HubMed – rehab



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