Some athletes may develop laryngeal obstruction during exercise. It is important to distinguish this condition from other causes of exercise-induced dyspnea such as bronchoconstriction.
(1) exercise-induced dyspnea with or without wheezing
(2) obstruction of the larynx
(3) evidence of airway obstruction seen on continuous laryngoscopy
Obstruction may be:
(1) supraglottic (involving the arytenoids and supporting structures)
(2) glottic (vocal cord dysfunction, other)
Structural causes may include laryngomalacia or laryngochalacia.
The condition may be misdiagnosed as exercise-induced bronchoconstriction. A clue in these patients is that the use of asthma medications is not associated with clinical improvement.
The diagnosis can easily be missed, especially if continuous laryngoscopy is not performed.
To read more or access our algorithms and calculators, please log in or register.
Specialty: Surgery, orthopedic, Pulmonology, Otolaryngology