Comparison of Airway Ultrasound Measurements

NCT06928402 | Completed

• 1 other identifier: SK001
• Study Type: observational
• Target: 420
• Locations: 1 country
• Sites: 1

Brief Summary

Evaluating the success of measurements taken with ultrasound airway imaging in predicting difficult intubation by comparing conventional parameters in terms of difficult intubation and the proportion of patients encountered during intubation and characterised as difficult.

Conditions

Intubation; Difficult or Failed

Keywords

airway management; airway ultrasound; difficult intubation; difficult ventilation

Outcome Measures

Primary Outcomes (1)

• Ratio of ultrasound-derived parameters with conventional parameters

  ultrasound derived parameters: hyoid bone visibility, skin-hyoid distance, skin-hyoid distance, skin-crricothyroid membrane distance, cricothyroid membrane length and hyomental distance measured in neutral and extension and the ratio of these values. Conventional parameters: thyromental distance, sternomental distance, upper lip bite test, head-neck movement, presence of retrognathia, neck circumference, maximum mouth opening, Wilson difficult intubation score, Han scale and Mallampati score

  1 hour peroperatively

Secondary Outcomes (2)

• Incidence of difficult intubation

  1 hour peroperatively

• Incidence of difficult ventilation

  1 hour preoperatively

Study Arms (1)

Airway Measurement Group

As this study is observational in nature, no interventions will be performed by the research team. The study will ,nvolve a single group, within which the incidence and prevalence of the outcomes will be assessed.

Other: No intervention

Interventions

No intervention OTHER

no interventions will be performed by the research team

Airway Measurement Group

Eligibility Criteria

• Age: 18 Years+
• Sex: all
• Healthy Volunteers: No
• Age Groups: Adult (18-64), Older Adult (65+)
• Sampling Method: Non-Probability Sample

Study Population

All cases that meet the inclusion and exclusion criteria will be included in the study. Patients will be taken to the operating room after being preoperatively evaluated in the observation room. The patient's anesthetic management will be provided by another anesthesiologist who is not participating in the study and is responsible for the patient. Intraoperative data will be obtained from the patient's anaesthesia follow-up form and the records of the anaesthesia machine. This group will include patients who will be intubated and operated on under general anaesthesia.

You may qualify if:

• Patients to be operated with endotracheal intubation under elective conditions
• Voluntary patients whose informed consent was obtained,
• Patients older than 18 years
• Patients evaluated in the 1-2-3 category of the American Society of Anaesthesiologist (ASA)

You may not qualify if:

• Patients with a history of difficult intubation
• Pregnant patients
• Patients with a history of surgery in the head and neck region
• Patients with a history of trauma or tumour in the head and neck region
• Presence of a syndrome that will cause difficult intubation
• Uncooperative patients,
• Patients with missing data

Sponsors & Collaborators

• Ankara Ataturk Sanatorium Training and Research Hospital: lead

Study Sites (1)

Ankara Ataturk Sanatorium Research and Training Hospital

Ankara, Turkey (Türkiye)

Location

Study Officials

• Münire Babayiğit, MD

  Ankara Ataturk Sanatorium Training and Research Hospital

  PRINCIPAL INVESTIGATOR

Study Design

• Study Type: observational
• Observational Model: COHORT
• Time Perspective: PROSPECTIVE
• Sponsor Type: OTHER GOV
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Assoc. Prof.

Study Record Dates

• First Submitted: April 8, 2025
• First Posted: April 15, 2025
• Study Start: April 14, 2025
• Primary Completion: August 31, 2025
• Study Completion: September 10, 2025
• Last Updated: September 19, 2025

Record last verified: 2025-09

Data Sharing

• IPD Sharing: Will not share

Locations

TU (1)