Comments to Role of upper airway ultrasound in airway management

J Intensive Care. 2017 Jan 13:5:10. doi: 10.1186/s40560-016-0204-x. eCollection 2017.

Abstract

Tracheal ultrasound can be an alternative diagnostic tool in airway management, besides traditional confirmatory methods such as capnography and auscultation. The standard image is a hyperechoic air-mucosa (A-M) interface with a reverberation artifact posteriorly (comet-tail artifact). If the second A-M interface appears, which we call a "double-tract sign," esophageal intubation is considered.

Keywords: Airway; Air–mucosa interface; Double-tract sign; Ultrasound.