Obstruction laryngée induite

Abstract

Inductible laryngeal obstruction (i.e. by an external stimulus) is the consensual terminology to describe the paroxysmal and episodic closure of the larynx at the origin of respiratory problems with sub-categorizations related to the inducers of the crisis, and laryngoscopic results regarding the modalities of obstruction. This new framework allowed the revision of the results published under the different previous names and improved knowledge on diagnostic and therapeutic modalities. Thus, an inducible laryngeal obstruction refers to an inappropriate, transient and reversible obstruction of the larynx in response to external triggers. An important cause of a variety of respiratory symptoms, it can mimic asthma. However, despite recent progress, the pathophysiological mechanism remains unknown and validated diagnostic and treatment algorithms are not yet established.