Difficult Airway, Difficult Intubation, Videolaryngoscopic Intubation, Vidiac Score
Conditions
Brief summary
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.
Interventions
None listed
Sponsors
Samsun University
Study design
Observational model
OTHER
Time perspective
OTHER
Eligibility
Sex/Gender
ALL
Age
18 Years to 80 Years
Healthy volunteers
No
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.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| To evaluate the relationship between preoperative ultrasonographic airway measurements and the VIDIAC score. | During videolaryngoscopic intubation | The relationship between preoperative ultrasonographic airway measurements and the Videolaryngoscopic Intubation and Difficult Airway Classification (VIDIAC) score will be evaluated in adult patients undergoing videolaryngoscopic intubation. The simplified VIDIAC score classifies patients as easy (-1 or 0), moderate (1), hard (2), or severe (≥3), with higher scores indicating greater videolaryngoscopic intubation difficulty. Correlations between ultrasonographic airway measurements and the VIDIAC score will be analyzed. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Incidence of Difficult Videolaryngoscopic Intubation | During videolaryngoscopic intubation | The incidence of difficult videolaryngoscopic intubation will be determined using the Videolaryngoscopic Intubation and Difficult Airway Classification (VIDIAC) score. The simplified VIDIAC score is classified as follows: easy (-1 or 0), moderate (1), hard (2), and severe (≥3), with higher scores indicating greater videolaryngoscopic intubation difficulty. Patients classified as having difficult videolaryngoscopic intubation according to the predefined VIDIAC criteria will be identified, and the incidence will be calculated. |
| Cormack-Lehane Grade | During videolaryngoscopic intubation | The Cormack-Lehane Grading System will be used to assess the laryngeal view obtained during videolaryngoscopic intubation. The scale ranges from Grade I to Grade IV (minimum: Grade I; maximum: Grade IV), where higher grades indicate poorer laryngeal visualization and greater difficulty with tracheal intubation. The recorded grade will be analyzed for its association with preoperative ultrasonographic airway measurements and the VIDIAC score. |
| Intubation Time | During videolaryngoscopic intubation | The duration of videolaryngoscopic intubation, measured from insertion of the videolaryngoscope into the oral cavity until successful placement of the endotracheal tube. |
| First-Attempt Intubation Success Rate | During videolaryngoscopic intubation | The proportion of patients successfully intubated on the first videolaryngoscopic attempt without the need for additional intubation attempts. |
| Requirement for Additional Airway Maneuvers | During videolaryngoscopic intubation | The need for additional airway maneuvers during videolaryngoscopic intubation, including external laryngeal manipulation, repositioning, use of a bougie, stylet adjustment, or other adjunctive techniques to facilitate successful intubation. |
| Occurrence of Oxygen Desaturation | During videolaryngoscopic intubation | The occurrence of oxygen desaturation during videolaryngoscopic intubation, defined as a decrease in peripheral oxygen saturation (SpO₂) below 90%. |
| Number of Intubation Attempts | During videolaryngoscopic intubation | The total number of videolaryngoscopic intubation attempts required to achieve successful endotracheal intubation. An intubation attempt is defined as insertion of the videolaryngoscope into the oral cavity with the intention of placing the endotracheal tube. |
Contacts
CONTACTHatice Selçuk Kuşderci
CONTACTBetül Çiftçi Kurt
Outcome results
None listed