A Comparative Correlation Of Pre-Anaesthetic Airway Assessment Using Ultrasound With Cormack Lehane Classification Of Direct Laryngoscopy.
Journal Title: IOSR Journal of Dental and Medical Sciences (IOSR-JDMS) - Year 2018, Vol 17, Issue 4
Abstract
Background: Preoperative assessment for predictors of difficult airway continues to generate quest amongst anaesthesiologists, as that affects the approach to airway management. . Ultrasonographic airway assessment could be a useful adjunct, but at present, there are no well-defined sonographic criteria that can predict the possibility of encountering a difficult airway. Materials and Methods:This was a prospective observational study conducted on 90 patients undergoing elective surgery under general anesthesia. Preoperative clinical and ultrasonographic assessment of the airway was done to predict difficult airway and was correlated with the Cormack Lehane (CL) grade noted at laryngoscopy. The sensitivity, specificity and accuracy of the parameters were assessed. Results:The incidence of difficult laryngoscopy was 21.1%. We found that increase in anterior neck soft tissue distance at epiglottis (DSEM) is strongly associated with difficult laryngoscopy. We found that a cut-off value of 17.7 mm was able to predict difficult laryngoscopy with an accuracy of 77.2%, a sensitivity of 78.9%, and a specificity of 76.3%. Conclusion:The ultrasonographic measurements in the Indian sub-population may not be very sensitive in predicting difficult airway with the exception of DSEM, which has reasonable correlation with Cormack Lehane grade for predicting difficult laryngoscopy.
Authors and Affiliations
Imran Nazir, Nandita Mehta
Keywords
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- EP ID EP370975
- DOI 10.9790/0853-1704104351.
- Views 109
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