NCT06892405

Brief Summary

The hypothesis of this study is that ultrasound measurements may improve the preoperative detection of difficult laryngoscopy (DL) in pediatrics. The primary objective of this study will be to evaluate the usefulness for the prediction of a DL of five ultrasound measurements obtained from the neck skin to three structures of the upper airway (hyoid, epiglottis and anterior commissure of the vocal cords). Secondary objectives will include establishing, if possible, a cut-off point in these measurements; to compare these measures against the classic pre-intubation clinical screening tests.

Trial Health

63
Monitor

Trial Health Score

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

Enrollment
49

participants targeted

Target at P25-P50 for all trials

Timeline
12mo left

Started Apr 2025

Typical duration for all trials

Geographic Reach
1 country

1 active site

Status
not yet 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 Progress52%
Apr 2025May 2027

First Submitted

Initial submission to the registry

March 21, 2025

Completed
3 days until next milestone

First Posted

Study publicly available on registry

March 24, 2025

Completed
27 days until next milestone

Study Start

First participant enrolled

April 20, 2025

Completed
2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 20, 2027

Expected
11 days until next milestone

Study Completion

Last participant's last visit for all outcomes

May 1, 2027

Last Updated

March 24, 2025

Status Verified

March 1, 2025

Enrollment Period

2 years

First QC Date

March 21, 2025

Last Update Submit

March 21, 2025

Conditions

Outcome Measures

Primary Outcomes (1)

  • prediction of a Difficult laryngoscopy of five ultrasound measurements obtained from the neck skin to three structures of the upper airway (hyoid, epiglottis and anterior commissure of the vocal cords).

    To evaluate the accuracy of five ultrasound measurements obtained from the neck skin to three structures of the upper airway (hyoid, epiglottis and anterior commissure of the vocal cords). Namely the DSH, DSE, DSG, DSH+DSE, and DSH-DSE in prediction of difficult laryngoscopy.

    Preoperative

Secondary Outcomes (3)

  • The Modified Mallampati Score (MMS).

    At Intubation

  • The thyromental distance (TMD)

    preoperative

  • The upper lip bite test (ULBT)

    Preoperative

Interventions

US measurements will be performed in the pre-operating room a , patients are placed in supine position with the head in a sniffing position on a surgical pillow and using the 15 MHz linear array transducer of the SonoSite™ S Series ultrasound in transverse position. A scan is made from the skin surface of the floor of the mouth to the trachea exerting the minimum possible pressure to identify the structures correctly.

Also known as: US

Eligibility Criteria

Age2 Years - 6 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17)
Sampling MethodProbability Sample
Study Population

Children aged 2-6 years, ASA I, II who will be scheduled for elective surgery under general anesthesia requiring orotracheal intubation after classical laryngoscopy.

You may qualify if:

  • Gender both males and females
  • ASA Class I and II
  • Age 2 years to 6
  • Children scheduled for elective surgery under general anesthesia requiring orotracheal intubation after classical laryngoscopy.

You may not qualify if:

  • Congenital upper airway malformation,
  • Head and neck swellings,
  • Scars,
  • Radiation to the neck,
  • Tracheotomy,

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Assiut university Pediatric hospital

Asyut, Assiut Governorate, 715715, Egypt

Location

Study Officials

  • Hala S Abdel-Ghaffar, MD

    Assiut University

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Hala S Abdel-Ghaffar, MD

CONTACT

Karim A Hamoda, MBBCH

CONTACT

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor of Anesthesia, intensive care and pain management

Study Record Dates

First Submitted

March 21, 2025

First Posted

March 24, 2025

Study Start

April 20, 2025

Primary Completion (Estimated)

April 20, 2027

Study Completion (Estimated)

May 1, 2027

Last Updated

March 24, 2025

Record last verified: 2025-03

Data Sharing

IPD Sharing
Will not share

Locations