Ultrasonographic Airway Assessment and VIDIAC Score
For patients and families
In plain language
An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.
- What is being studied
- This is an observational study: the protocol does not assign a study treatment.
- Who it may be relevant to
- Registry conditions: Difficult Airway, Difficult Intubation, Videolaryngoscopic Intubation, Vidiac Score. Basic parameters: 18 years — 80 years · All.
- What needs checking
- Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
- Where it takes place
- Center list to be confirmed — check the primary protocol.
- Next step
- Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →
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Official title
Evaluation of the Relationship Between Ultrasonographic Airway Measurements, Videolaryngoscopic Intubation Findings, and the Video Intubation Difficulty Assessment Classification (VIDIAC) Score in Adult Patients: A Prospective Observational Study
Overview
This prospective observational study aims to evaluate the relationship between preoperative ultrasonographic airway measurements and the Video-Intubation Difficulty Assessment Classification (VIDIAC) score in adult patients undergoing endotracheal intubation under general anesthesia. The study will investigate whether airway ultrasound parameters can predict difficult videolaryngoscopic intubation and assess their association with the Cormack-Lehane classification, intubation time, and other airway management outcomes.
Detailed description
Difficult airway management is a major cause of anesthesia-related morbidity and mortality. Airway ultrasonography has emerged as a noninvasive tool for evaluating airway anatomy and may help predict difficult intubation. The Video-Intubation Difficulty Assessment Classification (VIDIAC) score is a recently developed and standardized method for assessing videolaryngoscopic intubation difficulty.
This prospective, observational, single-center study aims to evaluate the relationship between preoperative ultrasonographic airway measurements and the VIDIAC score in adult patients undergoing elective surgery under general anesthesia. Ultrasonographic measurements, including tongue depth, tongue thickness, hyomental distance, hyoid depth, hyoid width, and distance from skin to epiglottis, will be obtained before anesthesia induction.
Videolaryngoscopic intubation will be performed by anesthesiologists blinded to the ultrasound findings, and the VIDIAC score will be recorded. The study will assess the correlation between ultrasonographic airway measurements and the VIDIAC score, as well as the ability of these measurements to predict difficult videolaryngoscopic intubation.
Primary outcome measures
- To evaluate the relationship between preoperative ultrasonographic airway measurements and the VIDIAC score. [Time frame: During videolaryngoscopic intubation]
Secondary outcome measures (7)
- Incidence of Difficult Videolaryngoscopic Intubation [Time frame: During videolaryngoscopic intubation]
- Cormack-Lehane Grade [Time frame: During videolaryngoscopic intubation]
- Intubation Time [Time frame: During videolaryngoscopic intubation]
- First-Attempt Intubation Success Rate [Time frame: During videolaryngoscopic intubation]
- Requirement for Additional Airway Maneuvers [Time frame: During videolaryngoscopic intubation]
- Occurrence of Oxygen Desaturation [Time frame: During videolaryngoscopic intubation]
- Number of Intubation Attempts [Time frame: During videolaryngoscopic intubation]
Eligibility criteria
Inclusion criteria
- Adults aged 18 to 80 years.
- American Society of Anesthesiologists (ASA) physical status I-III.
- Patients scheduled for endotracheal intubation under general anesthesia.
- Patients who provide written informed consent.
Exclusion criteria
- Known airway abnormalities.
- Head and neck tumors.
- Patients with a tracheostomy.
- Pregnant patients.
- Emergency surgical procedures.
- Patients with limited cervical mobility.
- Patients with facial trauma.
Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.
Healthy volunteers: No
Study design
- Observational model
- Other
Study locations
Center list to be confirmed — check the primary protocol.
Identifiers
NCT: NCT07694154 · GOKAEK 2026/11/19