Optimal positioning to image the subglottis during transnasal flexible laryngoscopy

Optimal positioning to image the subglottis during transnasal flexible laryngoscopy:

Abstract

Flexible transnasal laryngoscopy in the office setting has improved assessment of the upper aero-digestive tract.¹ Techniques designed to improve visualization of the oropharynx, hypopharynx, and larynx have included use of a chin-tuck described by Cherko et al. designed to permit full view of the subglottis.².³⁴ Our experience with both standard mirror examination of the larynx as well as transoral videostroboscopy has identified improved visualization of the subglottis through anterior chin and tongue positioning. We describe use of this technique, which we have found more generally useful than the chin-tuck procedure.

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