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Vestibular Rehabilitation Using Dynamic Posturography: Objective and Patient-Reported Outcomes from a Randomized

Eytan A David1, Navid Shahnaz2

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Summary
This summary is machine-generated.

Computerized Vestibular Retraining Therapy (CVRT) improved objective balance in patients with unilateral vestibular deficits (UVDs) more than a home exercise program (HEP). Adding CVRT after HEP further enhanced balance and reduced dizziness disability.

Keywords:
dizzinesspostural balancerehabilitationvestibular system

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Area of Science:

  • Neuroscience
  • Rehabilitation Medicine
  • Vestibular System Disorders

Background:

  • Balance deficits are common and debilitating, often stemming from unilateral vestibular deficits (UVDs).
  • Standard treatments for UVDs have limitations in fully restoring dynamic balance and addressing symptoms.
  • Computerized dynamic posturography (CDP) offers advanced assessment and rehabilitation potential.

Purpose of the Study:

  • To compare the efficacy of computerized vestibular retraining therapy (CVRT), a CDP-based protocol, against a home exercise program (HEP) for patients with UVDs.
  • To evaluate the impact of CVRT and HEP on objective balance measures and subjective dizziness-related disability.
  • To assess the benefit of adding CVRT as a subsequent therapy after an initial HEP.

Main Methods:

  • A single-center, randomized, interventional trial with a 1-sided crossover design was conducted.
  • Participants with UVDs and significant dizziness (Dizziness Handicap Inventory [DHI] >30) were randomized to CVRT or HEP.
  • Outcome measures included the Sensory Organization Test (SOT) for balance and DHI, Activity-Specific Balance Confidence (ABC) scale, and Falls Efficacy Score-International (FES-I) for disability.

Main Results:

  • The CVRT group showed significantly greater improvement in the SOT composite score compared to the HEP group (P=.04).
  • Both groups improved in self-reported disability measures (DHI, ABC, FES-I), with no significant differences between CVRT and HEP alone.
  • Patients who crossed over from HEP to CVRT demonstrated significant improvements in SOT composite, DHI, and ABC scores compared to HEP alone.

Conclusions:

  • While both CVRT and HEP improved self-reported dizziness disability, CVRT demonstrated superior improvement in objective balance.
  • Sequential therapy, with CVRT following HEP, proved more effective than HEP alone for improving balance and reducing disability.
  • Multimodal CDP-based interventions like CVRT should be considered as an adjunct to standard vestibular physiotherapy for UVDs.