This prospective observational study aims to evaluate the predictive value of ultrasound-measured skin-to-epiglottis distance for difficult airway in adult patients undergoing elective or emergency procedures requiring airway management. The correlation between ultrasound measurements and standard airway assessment parameters will be analyzed.
≥18 yaş elective surgery
emergency surgery
head and neck surgery
pregnant patients
The study population consists of adult patients scheduled for elective surgery requiring tracheal intubation under general anesthesia. Patients will be recruited from the preoperative anesthesia clinic at \[Hacettepe University Faculty of Medicine\]
Case-control
Prospective
Not listed
Skin-to-epiglottis distance
Distance measured via ultrasound in the anterior neck region
Incidence of difficult laryngoscopy (Cormack-Lehane grade ≥ 3)
The proportion of patients with difficult laryngoscopy defined as Cormack-Lehane grade 3 or 4 during direct laryngoscopy.
Intubation Difficulty Score (IDS)
Assessment of intubation difficulty using the Intubation Difficulty Score based on number of attempts, operators, alternative techniques, glottic exposure, lifting force, external laryngeal pressure, and vocal cord position.
Correlation between ultrasound measurements and Mallampati score
Correlation between tracheal diameter and skin-to-epiglottis distance measured by ultrasound and preoperative Mallampati classification.
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