NCT06925009

Brief Summary

This unicentric observational study collects clinical characteristics, demographic data, and point-of-care airway ultrasound measurements in patients undergoing videolaryngoscopy. These variables are analysed using machine-learning techniques to examine their association with predefined videolaryngoscopy-related outcomes, including blade performance and adjunct requirement.

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
280

participants targeted

Target at P75+ for all trials

Timeline
1mo left

Started Jan 2023

Typical duration for all trials

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Progress98%
Jan 2023Jun 2026

Study Start

First participant enrolled

January 27, 2023

Completed
2.1 years until next milestone

First Submitted

Initial submission to the registry

March 11, 2025

Completed
1 month until next milestone

First Posted

Study publicly available on registry

April 13, 2025

Completed
1.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 1, 2026

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

June 1, 2026

Last Updated

January 2, 2026

Status Verified

January 1, 2025

Enrollment Period

3.3 years

First QC Date

March 11, 2025

Last Update Submit

December 30, 2025

Conditions

Keywords

Ultrasound;Difficult Videolaryngoscopy; Machine Learning

Outcome Measures

Primary Outcomes (4)

  • Distance from skin to Hyoid bone measured with lineal ultrasound probe

    5 minutes

  • Distance from skin to epiglottis measured with lineal ultrasound probe

    5 minutes

  • Tongue Thickness measured with convex probe

    5 minutes

  • Distance from Jaw to Hyoid bone distance measured with convex probe

    5 minutes

Secondary Outcomes (6)

  • Modified Mallampati Score Class I: Soft palate, uvula, fauces, pillars visible. Class II: Soft palate, major part of uvula, fauces visible. Class III: Soft palate, base of uvula visible. Class IV: Only hard palate visible.

    1minute

  • Thyromental distance measured from the thyroid notch to the tip of the jaw with the head extended

    1minute

  • Sternomental distance the distance from the suprasternal notch to the mentum and is measured with the head fully extended on the neck and the mouth closed

    1minute

  • Interincisor distance DIstance in centimeters between fornt incisors

    1minute

  • Upper Lip Bite Test upper lip bite criteria-class I = lower incisors can bite the upper lip above the vermilion line, class II = lower incisors can bite the upper lip below the vermilion line, and class III = lower incisors cannot bite the upper lip

    1minute

  • +1 more secondary outcomes

Study Arms (1)

Patient undergoing general anesthesia with videolaryngoscopy intubation

Patient undergoing general anesthesia with intubation We will explore clinical airway parameters and external ultrasound parameters of the airway.

Diagnostic Test: Ultrasound mesurements

Interventions

Ultrasound mesurementsDIAGNOSTIC_TEST

Compare various clinical test with ultrasound parameters to predict difficult videolaryngoscopy intubation.

Patient undergoing general anesthesia with videolaryngoscopy intubation

Eligibility Criteria

Age18 Years - 90 Years
Sexall
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Patients (male or female) ASA I-III, aged between 18 and 90 years, undergoing scheduled surgery requiring orotracheal intubation. The signature of the informed consent is required authorizing its inclusion in the study.

You may not qualify if:

  • Obesity class II defined as a BMI greater than 35.
  • Pregnant.
  • Cervical tumors, goiter or patients who have required radiotherapy at the cervical level
  • Abnormalities that condition anatomy alterations such as facial / cervical fractures.
  • Maxillofacial abnormalities
  • People who cannot give their consent

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Clinica Universidad de Navarra

Madrid, Madrid, 28027, Spain

RECRUITING

Study Design

Study Type
observational
Observational Model
OTHER
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

March 11, 2025

First Posted

April 13, 2025

Study Start

January 27, 2023

Primary Completion (Estimated)

June 1, 2026

Study Completion (Estimated)

June 1, 2026

Last Updated

January 2, 2026

Record last verified: 2025-01

Locations