Risk factors assessment of the difficult airway: an italian survey of 1956 patients.

Abstract:

:Over the last decade, there has been a heightened awareness and an increase in the amount of literature being published on recognition and prediction of the difficult airway. During the preoperative evaluation of the airway, a thorough history and physical specifically related to the airway should be performed. Various measurements of anatomic features and noninvasive clinical tests can be performed to enhance this assessment. In this study we correlated the Mallampati modified score and several other indexes with the laryngoscopic view to identify anatomical and clinical risk factors related to the difficult airway. We prospectively collected data on 1956 consecutive patients scheduled to receive general anesthesia requiring endotracheal intubation for elective surgery. The Mallampati classification versus the Cormack-Lehane (C-L) linear correlation index was 0.904. A Mallampati Class 3 correlated with a C-L Grade 2 (0.94), whereas a Mallampati Class 4 correlated with a C-L Grade 3 (0.85) and a C-L Grade 4 (0.80). Operator evaluation, performed by a simplified tracheal intubation difficulty scale, showed a linear correlation of 0.96 compared with the C-L groups. Although there is a correlation between oropharyngeal volume and difficult intubation, the Mallampati score by itself is insufficient for predicting difficult endotracheal intubation.

journal_name

Anesth Analg

journal_title

Anesthesia and analgesia

authors

Cattano D,Panicucci E,Paolicchi A,Forfori F,Giunta F,Hagberg C

doi

10.1213/01.ANE.0000136772.38754.01

subject

Has Abstract

pub_date

2004-12-01 00:00:00

pages

1774-9, table of contents

issue

6

eissn

0003-2999

issn

1526-7598

pii

99/6/1774

journal_volume

99

pub_type

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