Breathing battle: biofeedback vs. retraining for vocal cord trouble
NCT ID NCT05770518
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tested two non-drug treatments for paradoxical vocal fold motion (PVFM), a condition where vocal cords close when they should open, causing shortness of breath. Fifty-one adults were randomly assigned to either biofeedback (watching their breathing on a screen) or laryngeal control therapy (learning relaxation and breathing techniques). Researchers measured symptom changes using a breathing difficulty questionnaire to see which approach works better.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
- Active substance
- biofeedback and laryngeal control therapy
- What this could lead to
- If this works, it could point toward a more effective, non-drug treatment for breathing difficulties caused by vocal cord dysfunction.
- What could go wrong
- This is a small pilot study with only 51 participants, so results may not apply to everyone. The treatments are behavioral and may not work for all patients.
This is an AI summary of the original study and may miss details. Read our disclaimer.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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Washington University
St Louis, Missouri, 63110, United States
More trials for these conditions
Other studies related to the condition(s) this trial covers.