• Kati Knudsen, Marieann Högman, Anders Larsson, and Ulrica Nilsson.
• J. Perianesth. Nurs. 2014 Aug 1; 29 (4): 292-7.

PurposeTo facilitate evaluation of the airway before endotracheal intubation, different scores have been developed, mainly to predict difficult airways. However, in anesthesia clinical practice in Sweden, scores would be more useful if they could also predict an easy airway, so that the correct category of anesthesia personnel can be allocated. Therefore, we evaluated whether scoring systems commonly used to predict difficult airways could also predict easy endotracheal intubation.DesignThis prospective observational study included patients who were scheduled for general anesthesia and required endotracheal intubation.MethodsAirways were evaluated preoperatively by two independent variables, namely Mallampati classification and thyromental distance. After anesthesia induction, the Cormack and Lehane grade was assessed.FindingMallampati scores yielded the highest specificity in predicting easy intubation, and Cormack and Lehane grades yielded the highest positive predictive value for predicting easy intubation.ConclusionsMallampati classification is an appropriate screening test for predicting easy intubation.Copyright © 2014 American Society of PeriAnesthesia Nurses. Published by Elsevier Inc. All rights reserved.

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