Recently, the value of ultrasound has been recognized as a promising non-invasive method of predicting the difficult airway.This is a real fact when ultrasound is combined with Mallampatti score.
We studied the value of some ultrasound’s markers in patients with Mallampatti score III, IV, in order to predict preoperatively a difficult airway.
We conducted a study of six female patients , aged between 48-60 years old , ASA II , BMI 35 – 45, four of which with Mallampatti score III and two with Mallampatti score IV  .None of them had received neck radiotherapy [2,3]. The thyrohyod distance of all patients was less than six centimeters. Ultrasonically studied
- DSE : Distance from Skin to Epiglottis
- HMD : Distance between Mandible/chin and Hyoid bone.
- Tongue thickness
The distance from skin to epiglottis measured less than 4.8 cm. Submandibular/hyoid bone was less than 5.3 cm, and tongue thickness 6.13 mm. Patients during laryngoscopy, were classified as IIIb according to Cormack-Lehane grading and intubated by using an Airtraq optical laryngoscope.
Ultrasound combined with clinical predictors of difficult airway can be a valuable adjunct tool in airway assessment and management .The study continues.