The purpose of this study is to measure the change in dizziness, as measured by change in Dizziness Handicap Inventory (DHI) score, following a 4-week treatment period with auricular transcutaneous vagus nerve stimulation (aTVNS).
Кой може да участва
Inclusion Criteria:
* Age 18-75, Persistent Postural-Perceptual Dizziness (PPPD) diagnosis per International Classification of Vestibular Disorders (ICVD).
* Persistent dizziness ≥3 months and at least 1 dizziness exacerbation/day during 2-week run-in.
* On stable medications/therapy for ≥4 weeks prior to baseline (if any).
Exclusion Criteria:
* Uncompensated peripheral/central vestibular deficit, sensory-afferent or cerebellar ataxia.
* Cardiac disease (coronary disease, unstable arrhythmia), recurrent syncope (\>1 in past 12 months).
* Neck surgery, vagotomy, or any condition interfering with vagal stimulation.
* Pregnancy.
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