Vocal cord dysfunction/inducible laryngeal obstruction induced by hyperventilation in healthy individuals, people with asthma, and following coronavirus infection

These proof-of-concept studies suggest that hyperventilation can provoke VCD/ILO in asthma and after a recent viral infection. How and why VCD/ILO develops is not known and these preliminary findings should prompt further studies of links between dysfunctional breathing, asthma, and viral infections.