Skip to main content

Table 1 Airway Difficulty Score (ADS). Used to quantify patient characteristics of difficult intubation [16]

From: A single-centre, randomised controlled feasibility pilot trial comparing performance of direct laryngoscopy versus videolaryngoscopy for endotracheal intubation in surgical patients

 

Score = 1

Score = 2

Score = 3

Thyromental distance (cm)

> 6

5–6

< 5

Mallampati Score

I

II

III & IV

Mouth opening (cm)

> 4

2–3

< 1

Neck mobility

Normal

Reduced

Fixed flexion

Upper incisors

Absent

Normal

Prominent