Evaluation of Airway Anatomical Characteristics after Elective Surgery with Difficult Intubation

AUTHORS

Mitra Jabalameli 1 , * , Mahmoud Saghaei 2 , Majid Jaberzadeansari 1

AUTHORS INFORMATION

1 Dept of Anesthesiology, Faculty of Medicine, Isfahan University of Medical Sciences and Health Services, Isfahan, Iran.

2 General Practitioner, Isfahan University of Medical Sciences and Health Services, Isfahan, Iran.

ARTICLE INFORMATION

Zahedan Journal of Research in Medical Sciences: 10 (2); e94535
Published Online: June 21, 2008
Article Type: Research Article
Received: June 10, 2008
Accepted: June 15, 2008

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Abstract

Background: Over the years there has been a great deal of research conducted on recognition
and prediction of the difficult intubation. The goal of this study was to assess the anatomical
conditions of airway in patients with difficult intubation after elective surgery.
Materials and Methods: In this cross–sectional prospective study, 51 patients who were
undergoing elective surgery under general anesthesia were enrolled. After awareness of patients in
recovery room, Mallampati score, thyromental distance, head and neck movements, distance
between upper and lower teeth, mandibular translation and backward movements, teeth conditions,
difficulty score were evaluated.
Results: In this study, %60.8 and %39.2 of patients were male and female respectively. Mean
age and weight of patients were 41.86±11.6 Y and 72.52±15.93 kg respectively. The Body Mass
Index was more than 25 in %54.9 of patients. The frequency of Mallampati class III and IV were
%58.8 and %15.7. Neck extension degree, thyromental distance, distance between upper and lower
teeth, and difficult intubation score were 43.23±5 degree, 6.61±1.98, 4.66±0.88 and 5.91±1.44 cm
respectively. The frequency of normal upper teeth, normal jaw and normal mandible were %33.3,
%62.7 and %82.3.
Conclusion: This study showed that mallampati score, mandibular backward and upper teeth
protrusion can predict difficult intubation better that other factors.

Keywords

Difficult intubation airway anatomy Mallampati class

© 2008, Zahedan Journal of Research in Medical Sciences. This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/) which permits copy and redistribute the material just in noncommercial usages, provided the original work is properly cited.
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