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  • Title: Development and Validation of VM-PATHI: Vestibular Migraine Patient Assessment Tool and Handicap Inventory.
    Author: Sharon JD, Krauter R, Kirk L, Pasquesi L, Allen IE, Formeister EJ, Michael RL, Levin M.
    Journal: Otol Neurotol; 2020 Apr; 41(4):e494-e500. PubMed ID: 32176141.
    Abstract:
    OBJECTIVE: The aim of this article is to develop and validate a disease-specific, patient-reported outcome measure for vestibular migraine. SETTING: Tertiary care vestibular center. PATIENTS: Adult patients with definite or probable vestibular migraine per Barany Society Criteria. STUDY DESIGN: This was a prospective cohort study. VM-PATHI (Vestibular Migraine Patient Assessment Tool and Handicap Inventory) was developed with expert input, literature review, and patient feedback. VM-PATHI scores were compared between those with vestibular migraine and controls, across several time points, and to other dizziness and quality of life (QoL) measures. RESULTS: A 25-item questionnaire was developed. Cronbach's α was high at 0.92. Test-retest reliability was excellent (r = 0.90, p < 0.001). Scores were much higher in patients with vestibular migraine (mean 42.5, SD = 16.1) than control patients (mean = 9.6, SD = 8.5). VM-PATHI scores were responsive to treatment (p = 0.01). Scores were well correlated with general QoL, depression, and anxiety scores. Scores were also correlated with the Dizziness Handicap Inventory (r = 0.69). An exploratory factor analysis was performed, which revealed 6 distinct factors that corresponded well to different aspects of disease-related symptomatology. CONCLUSION: VM-PATHI is a valid, reliable, and responsive measure of disease severity in vestibular migraine.
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