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NCT Number: NCT07372846

BRI, BMI, and VIDAC Score Relationship in Obese Patients

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.

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Key information

Conditions

Vidiac Score Body Weight Nutrition Disorders Nutritional and Metabolic Diseases Obesity Overnutrition Overweight Pathological Conditions, Signs and Symptoms Signs and Symptoms

Age range

18 year–65 year

Sex eligibility

All sexes

Study type

Observational

Primary location

Samsun University, Samsun Training and Research Hospital

Samsun, Ilkadım, Turkey (Türkiye)

Location status: Recruiting

About this study

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.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

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

Treatment and study plan

Videolaryngoscope

Device

Videolaryngoscopy imaging in participants with a body mass index greater than 30 kg/m².

Primary outcomes

  1. Examining the correlation between BRI and BMI values and the VIDIAC score.

    Time frame: 3 minutes after anesthesia induction

    To examine the correlation between BRI and BMI values and the VIDIAC score, and to determine whether BRI is a stronger predictor of difficult airway passage than BMI.

Secondary outcomes

  1. number of intubation attempts

    Time frame: 3 minutes after anesthesia induction

    To evaluate the relationship between BRI and BMI and the number of intubation attempts.

  2. Oropharyngeal visibility

    Time frame: 3 minutes after anesthesia induction

    To examine its relationship with oropharyngeal visibility (Cormack-Lehane, Mallampati).

Study contacts

Contact information is provided by the study sponsor or research team.

Hatice Selcuk Kuşderci

CONTACT

[email protected]

+905052159896

ramazan burak ferli

CONTACT

+905426459295

Sponsors and collaborators

Lead sponsor

Samsun University

Other

Registry information

Official study title

Evaluation of the Correlation Between Body Roundness Index (BRI), Body Mass Index (BMI), and VIDAC Score in Obese Patients: A Prospective Observational Study

Acronym: BRI-VIDAC

Important dates

Study start
2026
Primary completion
2026
Study completion
2026
First posted
Jan 28, 2026
Registry last updated
Jan 28, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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