Can bedside airway examination screening tests detect difficult to manage airways in the presence of normal anatomy?

BEEM Bottom Line

Why is this study important?

Bedside airway examination tests are often used as screening tests to predict difficult airway events. To be effective, screening tests must have a high sensitivity (likelihood ratio [LR–] < 0.1). This study provides insight into the utility of various bedside airway exams to predict difficult airway events.

Which, if any, threats to validity are most likely to have an impact on the results and how?

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