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Measurement of Upper Aerodigestive Tract Pressures During Phonation

Recruiting

The purpose of this pilot research study is to test whether a tool called “High-Resolution Manometry” can diagnose laryngeal dystonia (also known as spasmodic dysphonia) and measure how well treatment works. High-Resolution Manometry measures pressures from a small catheter that is passed from your nose into your throat. We believe that pressures in the throat might be different for people with laryngeal dystonia than for people without laryngeal dystonia, or with other types of voice disorders. If we can diagnose laryngeal dystonia shortly after symptoms start, we can get patients the treatment they need sooner.

I'm interested

18 Years and over
This study is also accepting healthy volunteers
Inclusion Criteria:
Patients with adductor laryngeal dystonia:
• Have experienced improvement in voice quality following injection of botulinum toxin into the thyroarytenoid complex
• Have received their most-recent injection within 6 months
• Age 18-80 years old
• Able to participate in informed consent
• Able to read and write in English Healthy Controls
• Age 18-80
• Have no known voice problem
• Have a VHI-10 score of 10 or below
• Able to participate in the informed consent process
• Able to read and write in English
Exclusion Criteria:
Patients with adductor laryngeal dystonia:
• Diagnosis of vocal tremor, abductor laryngeal dystonia, any type of vocal fold lesion, or vocal fold paralysis
• Known swallowing disorder (oropharyngeal or esophageal), with the exception of transient post-botulinum toxin injection-induced dysphagia
• Pregnant
• Prisoner
• Allergy to topical anesthetic
• Cannot fast for 6 hours (4 hour fast prior to study, up to 2 hours to complete the study)
• Recent facial trauma
• Recent nasal, pharyngeal, laryngeal, or esophageal surgery
• Known nasal, pharyngeal, or esophageal obstruction Healthy Controls
• VHI-10 Score of 11 or above
• Report having a current voice or swallowing disorder
• Pregnant
• Prisoner
• Allergy to topical anesthetic
• Cannot fast for 6 hours (4 hour fast prior to study, up to 2 hours to complete the study)
• Recent facial trauma
• Recent nasal, pharyngeal, laryngeal, or esophageal surgery
• Known nasal, pharyngeal, or esophageal obstruction

Ear, Nose & Throat

Clinics and Surgery Center (CSC)

MN Voice Lab Study - mnvoicelab@umn.edu
Jesse Hoffmeister
Pilot
STUDY00015206
ENT-2022-30531

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