Exercise-induced laryngochalasia: an imitator of exercise-induced bronchospasm
- PMID: 11101182
- DOI: 10.1016/S1081-1206(10)62552-5
Exercise-induced laryngochalasia: an imitator of exercise-induced bronchospasm
Abstract
Background: Patients with exercise-induced laryngochalasia present with dyspnea and stridor during exercise. Symptoms are due to a subtotal occlusion of the larynx resulting from mucosal edema from the aryepiglottic folds being drawn into the endolarynx.
Methods: We report on three patients with exercise-induced bronchospasm, refractory to standard therapy.
Results: Spirometry with flow-volume loops revealed truncation of the inspiratory limb. Abnormal movement of the arytenoid region was visualized on laryngoscopy. A diagnosis of exercise-induced laryngochalasia was made.
Conclusions: Evaluation of laryngeal motion in patients with refractory exercise-induced bronchospasm is important. Surgical correction with laser laryngoplasty is effective in carefully selected cases.
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