Usability of Vibro-tactile Stimulation to Treat Spasmodic Dysphonia

University of Minnesota (UMN)

Status and phase

Completed

Phase 2

Phase 1

Conditions

Spasmodic Dysphonia

Laryngeal Dystonia

Treatments

Device: Vibro-tactile stimulation

Study type

Interventional

Funder types

Other

Identifiers

NCT06111027

STUDY00019659

Details and patient eligibility

About

The general aim of the study is to provide evidence for usability and feasibility of applying vibro-tactile stimulation (VTS) at home as a non-invasive form of neuromodulation to improve speech in people with spasmodic dysphonia (SD). This work addresses a clinical need to develop alternative or auxiliary treatments for a rare voice disorder with very limited treatment options. Successful completion of the proposed work will be an important step in advancing laryngeal VTS as a therapeutic intervention for improving voice symptoms in SD.

Enrollment

40 patients

Sex

All

Ages

18 to 75 years old

Volunteers

No Healthy Volunteers

Inclusion criteria

Diagnosis of spasmodic dysphonia (laryngeal dystonia) for a minimum of 6 months with documented symptom relief after Botox injection.
Diagnosis is made by a voice disorder specialist.

Exclusion criteria

Regular intake of benzodiazepines
Cognitive impairment: score < 27 on Mini-mental state examination
Identifies with a neurological or musculoskeletal impairment affecting speech motor function. These impairments may include a form of: Dyskinesia, Dystonia, Essential Tremor, Huntington's Disease, Multiple System Atrophy, Muscle Tension Dysphonia, Parkinsonism, Progressive Supranuclear Palsy, Spasticity, Intracranial Neoplasm (brain tumor), Spinal Neoplasm, Cerebrovascular Accident (Stroke), Mild Traumatic Brain Injury, Intracranial Hemorrhage, Multiple Sclerosis