The Use of a US-measured Styloid Process of the Distal Radius EET Diameter for Prediction of ETT Size
ETT/US
The Correlation Between Ultrasound-measured Styloid Process of the Distal Radius and the Outer Diameter of the Best-fitting Endotracheal Tube in Pediatrics
1 other identifier
observational
100
1 country
1
Brief Summary
This study will aim to test the accuracy of the ultrasonography measurement of the epiphyseal diameter of the distal radius in the prediction of the size of the cuffed and uncuffed ETT that best fits in children (1-6 years old) in comparison with the traditional age-based formulas.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for all trials
Started Jan 2024
Typical duration for all trials
1 active site
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
First Submitted
Initial submission to the registry
December 4, 2023
CompletedFirst Posted
Study publicly available on registry
December 12, 2023
CompletedStudy Start
First participant enrolled
January 10, 2024
CompletedPrimary Completion
Last participant's last visit for primary outcome
January 20, 2026
CompletedStudy Completion
Last participant's last visit for all outcomes
January 30, 2026
CompletedMarch 24, 2025
March 1, 2025
2 years
December 4, 2023
March 21, 2025
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Agreement between the reference tube size based on US- Epiphyseal Diameter of distal radius measured OD and the final BFT
The US probe will be first placed longitudinally over the distal radius to identify the epiphysis. Then the probe will be turned 90 degrees to identify and measure the transverse diameter of the radius epiphysis. These measured diameters coincide with the OD of the ETT.
At induction of anesthesia
Study Arms (2)
Cuffed Endotracheal tube.
Patients will be intubated using a high-volume low-pressure cuffed ETT with its OD determined by US measurement of the epiphyseal diameter of the distal radius.
Uncuffed Endotracheal tube.
Patients will be intubated using an uncuffed ETT with its OD determined by US measurement of the epiphyseal diameter of the distal radius.
Interventions
Patients will be intubated using a cuffed ETT with its OD determined by US measurement of the epiphyseal diameter of the distal radius.
Patients will be intubated using an uncuffed ETT (Flexicare-UK) with its OD determined by US measurement of the epiphyseal diameter of the distal radius.
Eligibility Criteria
Children aged 1-6 years of both sexes undergoing surgical procedures in which an endotracheal tube is needed.
You may qualify if:
- Weight: 10-30 kg.
- Age: 1-6 years.
- Sex: both males and females.
- ASA physical status: I-II.
- Operation: elective surgery in which airway management with an endotracheal tube is needed.
You may not qualify if:
- Upper airway malformations.
- Upper airway surgery.
- Active respiratory illness (cough, fever, rhinorrhea) on the day of anesthesia,
- Anticipated difficult airway.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Assiut university Pediatric hospital
Asyut, Assiut Governorate, 715715, Egypt
Study Officials
- PRINCIPAL INVESTIGATOR
Hala S Abdel-Ghaffar, MD
Assiut University
Central Study Contacts
Study Design
- Study Type
- observational
- Observational Model
- COHORT
- Time Perspective
- PROSPECTIVE
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Professor
Study Record Dates
First Submitted
December 4, 2023
First Posted
December 12, 2023
Study Start
January 10, 2024
Primary Completion
January 20, 2026
Study Completion
January 30, 2026
Last Updated
March 24, 2025
Record last verified: 2025-03
Data Sharing
- IPD Sharing
- Will not share