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Related Experiment Videos

[Exercise-induced laryngomalacia].

L Chemery1, G Le Clech, P Delaval

  • 1Service des Explorations Fonctionnelles, Hôpital Pontchaillou, CHRU de Rennes, Rennes, France.

Revue Des Maladies Respiratoires
|December 11, 2002
PubMed
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Exercise-induced laryngomalacia, a rare cause of exertional dyspnea, was diagnosed in a teen misdiagnosed with asthma. Diagnosis involved exercise testing and laryngoscopy, highlighting its importance in specific cases.

Area of Science:

  • Pediatric Pulmonology
  • Otolaryngology

Background:

  • Exercise-induced asthma is a common diagnosis for exertional dyspnea.
  • Laryngomalacia is a rare condition characterized by laryngeal cartilage floppiness.

Observation:

  • A 14-year-old female presented with dyspnea on exertion unresponsive to asthma treatment.
  • Flow-volume loops revealed variable extrathoracic airway obstruction post-exercise.
  • Flexible fiberoptic rhinolaryngoscopy showed arytenoid prolapse causing airway obstruction.

Findings:

  • Exercise-induced laryngomalacia was diagnosed, differentiating it from exercise-induced asthma.
  • Laser aryepiglottoplasty provided partial functional improvement despite anatomical success.

Implications:

Related Experiment Videos

  • Laryngomalacia should be considered in exertional dyspnea, especially with inspiratory difficulty, unresponsive to bronchodilators.
  • Diagnostic tools include exercise testing with flow-volume loops and laryngoscopy.