Exercise Test for Paradoxic Vocal Fold Motion
Paradoxic Vocal Fold Motion or Vocal Cord Dysfunction (VCD) is a group of symptoms characterized by partial or full closure of the vocal cords, usually during inhalation, but also occuring during exhalation, usually with exhertion. VCD is sometimes termed Paradoxical Vocal Cord Motion (PVCM).
Symptoms can include shortness of breath, tightness in the chest or throat or wheezing during exertion. A diagnosis of VCD is made after ruling out other neurological, pulmonary, or cardiac causes.
An exercise test, performed in the office and in an attempt to prompt the symptoms to occur, will assess your child's symptoms. Once the symptoms are felt, a small scope is used to evaluate the vocal cord's movement.