“…This situation can arise independent of location (pre-or in-hospital setting), [1][2][3] clinical expertise (medical technician, nurse, or physician), 4,5 or specialty (emergency medicine, anesthesiology, critical care medicine, or surgery). [6][7][8] The most recent American Society of Anesthesiologists' (ASA) "Practice Guidelines for Management of the Difficult Airway" designate surgical or percutaneous airway, jet ventilation, or retrograde intubation as invasive airway access procedures to secure the airway in both non-emergency and emergency situations. 9 Each of these techniques is usually performed at the cricothyroid membrane (CTM).…”