VCD and ILO are not synonymous

The publication by Leong et  al1 synonymizes vocal cord dysfunction (VCD) and a neologism, inducible laryngeal obstruction (ILO). The function of the vocal cords during normal respiration is to abduct during inspiration to maximize air intake. One form of VCD involves paradoxical adduction during inspiration, resulting in obs truction to inspiratory airflow (Fig 1, A). Another type of VCD involves adduction during both inspiration and expiration, resulting in obstruction to airflow throughout the respiratory cycle (Fig 1, B).
Source: Journal of Allergy and Clinical Immunology - Category: Allergy & Immunology Authors: Tags: Correspondence Source Type: research