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Laryngeal Vibration for Spasmodic Dysphonia

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Laryngeal Vibration for Spasmodic Dysphonia

The general aim of the research is to provide scientific evidence that VTS represents a non-invasive form of neuromodulation that can induce measurable improvements in the speech of SD patients. This research addresses a clinical need to develop alternative or auxiliary treatments for a rare voice disorder with limited treatment options. A successful completion of the proposed work will be an important step in advancing laryngeal VTS as a therapeutic intervention for improving the voice symptoms in SD. Specifically, the scientific yield by achieving the specific aims is threefold: First, it will elucidate the unknown neurophysiological mechanism behind laryngeal VTS by documenting the neural changes associated with VTS. Second, it will establish that VTS can improve voice quality in SD. Third, by documenting that laryngeal VTS yields long-term benefits on voice quality in SD patients, it would provide a solid basis for a clinical trial that needs to address open questions on optimal dosage and duration of VTS-based voice therapy, the magnitude of the therapeutic effect across adductor and abductor SD and its longterm efficacy.

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No pharmaceutical medication involved common.study.methods.has-drugs-no
Patients and healthy individuals accepted common.study.methods.is-healthy-no

Device - Laryngeal Vibration (Treatment)

The strength of the vibration is similar to the vibration experienced from vibrating cell phones or gaming joysticks. Vibro-tactile stimulation at the applied frequency and amplitude is not known to cause pain or tissue damage. The participant may feel a mild tingling or vibrating sensation. Preliminary testing on healthy human subjects showed that at the given vibration parameters no adverse reactions occur.

Device - Laryngeal Vibration (Comparator)

The strength of the vibration is similar to the vibration experienced from vibrating cell phones or gaming joysticks. Vibro-tactile stimulation at the applied frequency and amplitude is not known to cause pain or tissue damage. The participant may feel a mild tingling or vibrating sensation. Preliminary testing on healthy human subjects showed that at the given vibration parameters no adverse reactions occur.

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participant.views.study.view.scientific-title

Laryngeal Vibration as a Non-invasive Treatment for Spasmodic Dysphonia

common.study.values.clinical-trial-id

NCT03746509

participant.views.study.view.id

e73DAe