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Diagnostic accuracy of bedside tests for predicting difficult intubation in Indian population: An observational study
- Source :
- Anesthesia, Essays and Researches
- Publication Year :
- 2016
- Publisher :
- Medknow, 2016.
-
Abstract
- Background: Unanticipated difficult intubation can be challenging to anesthesiologists, and various bedside tests have been tried to predict difficult intubation. Aims: The aim of this study was to determine the incidence of difficult intubation in the Indian population and also to determine the diagnostic accuracy of bedside tests in predicting difficult intubation. Settings and Design: In this study, 200 patients belonging to age group 18–60 years of American Society of Anesthesiologists I and II, scheduled for surgery under general anesthesia requiring endotracheal intubation were enrolled. Patients with upper airway pathology, neck mass, and cervical spine injury were excluded from the study. Materials and Methods: An attending anesthesiologist conducted preoperative assessment and recorded parameters such as body mass index, modified Mallampati grading, inter-incisor distance, neck circumference, and thyromental distance (NC/TMD). After standard anesthetic induction, laryngoscopy was performed, and intubation difficulty assessed using intubation difficulty scale on the basis of seven variables. Statistical Analysis: The Chi-square test or student t-test was performed when appropriate. The binary multivariate logistic regression (forward-Wald) model was used to determine the independent risk factors. Results: Among the 200 patients, 26 patients had difficult intubation with an incidence of 13%. Among different variables, the Mallampati score and NC/TMD were independently associated with difficult intubation. Receiver operating characteristic curve showed a cut-off point of 3 or 4 for Mallampati score and 5.62 for NC/TMD to predict difficult intubation. Conclusion: The diagnostic accuracy of NC/TM ratio and Mallampatti score were better compared to other bedside tests to predict difficult intubation in Indian population.
- Subjects :
- intubation difficulty scale
medicine.diagnostic_test
Receiver operating characteristic
business.industry
medicine.medical_treatment
Laryngoscopy
Difficult airway
neck circumference
Logistic regression
Thyromental distance
Mallampatti score
03 medical and health sciences
0302 clinical medicine
030202 anesthesiology
Anesthesia
Materials Chemistry
medicine
Intubation
Original Article
Observational study
030212 general & internal medicine
business
Airway
Mallampati score
Subjects
Details
- ISSN :
- 02591162
- Volume :
- 10
- Database :
- OpenAIRE
- Journal :
- Anesthesia: Essays and Researches
- Accession number :
- edsair.doi.dedup.....678126d4d506a3d3ff7f0146a24e916b