Bronchial or Laryngeal Obstruction Induced by Exercise?

Frontiers in Pediatrics

Ayoub Bey¹ 

关键词: asthma;    respiratory resistance;    spirometry;    dyspnea on exertion;    forced oscillations;   

DOI  :  10.3389/fped.2017.00150

学科分类：儿科学

来源: Frontiers

【 摘 要 】

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.

【 授权许可】

CC BY