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Key Points 
Question What is the feasibility of offering vestibular therapy for patients presenting to the emergency department (ED) with dizziness and collecting longitudinal patient-reported outcomes?
Findings In this nonrandomized clinical trial of 125 patients with dizziness, ED physical therapists successfully applied a protocolized diagnostic classification and treatment algorithm. Patients receiving ED vestibular therapy reported greater improvements in dizziness handicap, vestibular activities avoidance, and sedating medication use during 3 months of follow-up, although the differences were not statistically significant in this pilot trial.
Meaning The findings of this trial suggest that ED vestibular therapy is feasible and may improve patient-reported dizziness symptoms over time; this pilot trial establishes the need for a fully powered randomized clinical trial of ED vestibular therapy for dizziness and vertigo.
Abstract
Importance Dizziness symptoms account for nearly 2 million annual emergency department (ED) visits and present a diagnostic challenge for clinicians. Most dizziness research has focused on improving guideline-concordant care among clinicians, with little focus on developing patient-centered interventions to improve dizziness-related disability.
Objective To examine the feasibility of ED vestibular rehabilitation therapy (ED-VeRT) using a protocolized diagnostic classification algorithm and collection of longitudinal patient-reported outcomes.
Design, Setting, and Participants A pilot nonrandomized clinical trial of ED-VeRT vs usual care for patients presenting to the ED with dizziness at a single urban US ED was conducted from November 16, 2021, to February 6, 2023, with collection of 3-month outcomes through May 1, 2023. Patients were allocated to ED-VeRT or usual care at the discretion of the treating physician.
Interventions Use of ED-VeRT was delivered by an ED physical therapist via a protocolized diagnostic classification and treatment algorithm based on a diagnosis of benign paroxysmal positional vertigo, triggered undifferentiated dizziness, spontaneous undifferentiated dizziness, or unilateral peripheral hypofunction.
Main Outcomes and Measures Feasibility outcomes included participant screening, enrollment, and retention rates to inform the design of a future randomized clinical trial; retention was defined as completing any of 4 follow-up surveys over 3 months. The primary efficacy outcome was change in the Dizziness Handicap Inventory score; the secondary efficacy outcome was change in the Vestibular Activities Avoidance Inventory-9 score.
Results Of 366 patients screened, 125 participants were enrolled (median age, 52 [IQR, 40-66] years, 73 [58%] female, 61 [49%] White), and 105 retained (84.0%) in longitudinal data collection. Sixty-three participants (50.4%) received ED vestibular therapy and were assigned to primary diagnostic classifications of benign paroxysmal positional vertigo (23 [37.1%]), triggered undifferentiated dizziness (14 [22.6%]), spontaneous undifferentiated dizziness (14 [22.6%]), or unilateral peripheral hypofunction (9 [14.5%]). Despite having higher Dizziness Handicap Inventory and Vestibular Activities Avoidance Inventory scores at baseline, ED-VeRT participants reported lower dizziness handicap (difference: −1.68; 95% CI, −11.30 to 7.90) and vestibular activities avoidance (difference: −2.27; 95% CI, −8.40 to 3.86) at 3 months, although these differences were not statistically significant.
Conclusions and Relevance In this nonrandomized clinical trial, ED vestibular therapy was feasibly delivered to patients presenting to the ED with undifferentiated dizziness symptoms. For participants receiving vestibular therapy the findings for dizziness-related disability over 3 months were not statistically significant, pointing to the need for a fully powered randomized clinical trial.
