Bronchial or Laryngeal Obstruction Induced by Exercise?


A child suspected of exercise-induced laryngeal obstruction and asthma is examined by laryngoscopy and respiratory resistance (Rrs) after exercise challenge. Immediately at exercise cessation, the visualized adduction of the larynx in inspiration is reflected in a paroxystic increase in Rrs. While normal breathing has apparently resumed later on during recovery from exercise, the pattern of Rrs in inspiration is observed to reoccur following a deep breath or swallowing. The procedure may thus help diagnosing the site of exercise-induced obstruction when laryngoscopy is not available and identify re-inducers of laryngeal dysfunction.

DOI: 10.3389/fped.2017.00150

Cite this paper

@inproceedings{Bey2017BronchialOL, title={Bronchial or Laryngeal Obstruction Induced by Exercise?}, author={Ayoub Bey and Sophie Botti and Laurianne Coutier-Marie and Claude Bonabel and St{\'e}phanie Metche and Silvia Demoulin-Alexikova and Cyril Etienne Schweitzer and François Marchal and Laurent Coffinet and Iulia Ioan}, booktitle={Front. Pediatr.}, year={2017} }