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BRIEF REPORT

The Incidence of Class "Zero" Airway and the Impact of Mallampati Score, Age, Sex, and Body Mass Index on Prediction of Laryngoscopy Grade

Tiberiu Ezri, MD^*, R. David Warters, MD, Peter Szmuk, MD, Husam Saad-Eddin, MD, Daniel Geva, MD, Jeffrey Katz, MD, and Carin Hagberg, MD

*Department of Anesthesiology, Wolfson Medical Center, Holon, Affiliated with Sackler Medical School, Tel-Aviv, Israel; University of Texas, Houston Medical School, Houston, TX; and the Kaplan Medical Center, Rehovot, Affiliated with Hadassah Medical School, Jerusalem, Israel

Address correspondence and reprint requests to Peter Szmuk, The University of Texas, Houston Medical School, Department of Anesthesiology, 6431 Fannin, MSB 5.020, Houston, TX 77030. Address e-mail to Peter.Szmuk{at}uth.tmc.edu

Abstract

IMPLICATIONS: In an earlier study we proposed the addition of a new airway class, zero (visualization of the epiglottis), to the four classes of the modified Mallampati classification. In this prospective study, 764 surgical patients were assessed with regard to their airway class (including class zero), laryngoscopy grade, and the effect of the airway class and other predictors on the laryngoscopy grade.

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