The VIDIAC score is a measurement system that objectively defines glottic visibility and anatomical complexity in videolaryngoscopy. The literature has shown a relationship between parameters such as BMI, NC, and TMD and difficult airway management in obese patients, but there is no study examining the BRI-VIDIAC relationship.

Obesity is a clinical condition that alters the anatomical airway structure and can increase intubation difficulties.

Body Mass Index (BMI) alone is not a sufficient predictor of airway management; it is important in conjunction with measurements such as obesity-related fat distribution, neck circumference, and temporomandibular joint dysfunction (TMD). Body Roundness Index (BRI) is a new anthropometric indicator that reflects body fat distribution more accurately than BMI.

The VIDIAC score is a measurement system that objectively defines glottic visibility and anatomical complexity in videolaryngoscopy. The literature has shown a relationship between parameters such as BMI, NC, and TMD and difficult airway management in obese patients, but there is no study examining the BRI-VIDIAC relationship.

This study aimed to examine the correlation of BRI and BMI values with the VIDIAC score and to determine whether BRI is a stronger predictor of difficult airway management than BMI.

Inclusion Criteria:

• General anesthesia will be administered
• Being classified as obese (BMI ≥30)
• Patient giving informed consent

Exclusion Criteria:

• Pregnancy
• Emergency surgery
• Head and neck deformity
• Inability to measure Mallampati level
• Patients with tracheostomy
• Severe hemodynamic instability

Participants aged 18-65 with a BMI ≥ 30 kg/m² who will undergo elective surgery.

The datasets used and/or analysed during the current study are available from the corresponding author on reasonable request