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Table 3 Airway assessment by modified “LEON” method [20]

From: Success rates of pre-hospital difficult airway management: a quality control study evaluating an in-hospital training program

Airway assessment: modified “LEON” method
Look Facial trauma
Abnormal facial shape (craniofacial deformities)
Teeth - protruding - large incisors - false teeth?
Large tongue
Evaluate Incisor distance > 3 fingers
Hyoid/mentum distance (mandible length) > 3 fingers
Thyroid to floor of mouth > 2 fingers
Obstruction Obstructed airway (tissue swelling, foreign body, obesity)
Neck Neck mobility (if feasible)