The primary reason vocal cord dysfunction (VCD) [or paradoxical vocal fold motion (PVFM)] is confused with asthma is because the two respiratory diseases share similar symptoms.
Patients with VCD may experience the following symptoms:
- Shortness of breath
- Chest and/or throat tightness
- Chronic cough
- Frequent throat clearing
- Intermittent hoarseness
- Difficulty with inhalation and/or exhalation
- Feeling they are "breathing through a straw"