■ High larynx
■ Distance from the undersurface of the mandible to the laryngeal
prominence < 2 patient fingerbreadths
■ Upper airway obstruction
■ Epiglottitis, angioedema, neck hematoma/masses
RESUSCITATION
TABLE 1.1. Mallampati Score for Oral Access
CLASS VISIBLE ONMOUTHOPENING DIFFICULTYWITHORALACCESS
I Soft palate, uvula, fauces, tonsillar pillars None
II Soft palate, uvula, fauces None
III Soft palate, base of uvula Moderate
IV Hard palate only Severe
Class I Class II
Class III Class IV
Predictors of difficult
laryngoscopy and intubation
include:
Abnormal neck mobility
Limited mouth opening
Poor oral access
High larynx
Upper airway obstruction
FIGURE 1.1. Mallampati score for oral access.
(Reproduced, with permission, from Tintinalli JE, Kelen GD, Stapczynski JS. Emergency
Medicine: A Comprehensive Study Guide, 6th ed. New York: McGraw-Hill, 2004:117.)