1. Thyromental height test as a new method for prediction of difficult intubation with double lumen tube
- Author
-
Piotr Palczynski, Anna Smelik, Szymon Bialka, Lukasz Szarpak, Hanna Misiołek, Maja Copik, and Kurt Ruetzler
- Subjects
Adult ,Male ,medicine.medical_treatment ,Laryngoscopy ,lcsh:Medicine ,Sternomental distance ,03 medical and health sciences ,0302 clinical medicine ,030202 anesthesiology ,Intubation, Intratracheal ,Medicine ,Intubation ,Humans ,030212 general & internal medicine ,lcsh:Science ,Double lumen tube ,Difficult intubation ,Orthodontics ,Multidisciplinary ,medicine.diagnostic_test ,business.industry ,lcsh:R ,Thyromental distance ,Test (assessment) ,Female ,lcsh:Q ,business ,Airway - Abstract
Background Predicting difficult intubation is of high clinical interest. Methods 237 patients aged ≥18 years were included in the study. Preoperative airway evaluation included: Mallampati test, thyromental distance, sternomental distance and thyromental height test. During direct laryngoscopy Cormack & Lehane classification was graded. We calculated the ROC AUC, sensitivity and specificity for thyromental height test as a primary end point of our study. Results Only thyromental height test and Cormack-Lehane scale proved significant on occurrence of difficult intubation. The optimal sensitivity and specificity values of thyromental height test were met with a cut off value of 50 mm. With 1 mm increase in thyromental height test, risk of difficult intubation decreased by 7%. Conclusion Thyromental height test is a simple, easy to perform and non-invasive test to predict difficult intubation in patients scheduled for elective double lumen tube intubation during thoracic surgical procedures. With 1 mm above 50 mm increase in thyromental height test the risk of difficult intubation decreased by 7%. Trial registration Clinicaltrials.gov Identifier: NCT02988336.
- Published
- 2018