Comparison of El-Ganzouri Risk Index and Airway Ultrasonographic Evaluation in Thyroid Surgery

Patients' demographic information (age, gender, American Society of Anesthesiologists (ASA) classification, STOP-BANG score(snoring, feeling tired, observed apnea, hypertension, obesity, age, neck circumference and gender), body mass index) and thyroid ultrasonographic measurement will be recorded.

At the preoperative visit, patients will be evaluated for El-Ganzouri Risk Index (EGRI) scores (mouth opening, thyromental distance, mallampati score, neck movement limitation, presence of prognathia, body weight and history of difficult intubation) and for airway ultrasonography (skin-epiglottis distance, skin-hyoid bone distance, skin-vocal cord distance, tongue thickness and tongue volume values).

After this information is recorded, patients will be grouped as those expected difficult intubation and those who are not. After the patients are taken to the operating table and monitored, vascular access will be opened, standard anesthesia induction will be applied to the patients by the room specialist, and laryngoscopy and endotracheal intubation will be performed by the trained (>2 years experienced) anesthesiologist. If Intubation Difficulty Scale (IDS) score will be greater than 5, patient will be considered difficult intubation.

Inclusion criteria

• Patients with ASA scores 1-3
• Patients between 18-65 age
• Patients who undergo thyroid surgery

Exclusion criteria

• Patients who do not accept to participate the research
• Patients under age 18 and over age 65
• Pregnant patients
• Patients who undergo surgery due to emergency medical conditions (such as hematoma, thyroid crisis or myxedema coma)
• Patients with airway malformations
• Patients with a high risk of aspiration