الفهرس 
AIRWAY ANATOMY
Airway management in OSAOnly 14 pages are availabe for public view
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Abstract
Summary
In anesthesia of OSA patients, the major worry of most anesthetists is airway assessment due to greater risk of DTI (Difficult tracheal intubation). DTI has been defined by the ASA as more than 2 attempts at intubation or attempts lasting more than 10 minutes by qualified anestheologist.
Accurate airway assessment should always be performed so as to provide appropriate planning and management of expected difficult intubation.
Ultrasonography could be a highly sensitive and specific tool for prediction of difficult intubation in OSA patients presented for elective surgery by measuring tongue base thickness, distance between lingual arteries, hyo-mental distance and condylar mobility.
The aim of this study was to evaluate ultrasound versus clinical tests as predictors of difficult intubation in OSA patients undergoing elective surgery under general anaesthesia. This study was carried out on OSA patients prepared for elective surgery under general anaesthesia with tracheal intubation from Tanta University Hospitals from January 2022 to December 2022. Ultrasonographic parameters of measurements included tongue base thickness, hyo-mental distance, distance between lingual arteries and anterior condylar mobility. While, the clinical parameters of measurements included modified Mallampatti classification without phonation, neck circumference, thyromental distance, sternomental distance, inter-incisor distance and BMI. Then, ultrasonographic and clinical parameters were compared. During the study period, 90 patients were screened for eligibility. Of these, 70 met the inclusion criteria. Using the Cormack-Lehane grade during direct larygnoscopy, the patients were divided in two groups, 58 patient in the easy group and 12 patients in the difficult group