The Use of a US-measured Styloid Process of the Distal Radius EET Diameter for Prediction of ETT Size
For patients and families
In plain language
An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.
- What is being studied
- The protocol lists: Cuffed endotracheal tube, UnCuffed ETT.
- Who it may be relevant to
- Registry conditions: Airway Management. Basic parameters: 1 year — 6 years · All.
- What needs checking
- Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
- Where it takes place
- Egypt
- Next step
- Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →
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Official title
The Correlation Between Ultrasound-measured Styloid Process of the Distal Radius and the Outer Diameter of the Best-fitting Endotracheal Tube in Pediatrics
Overview
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.
Detailed description
Various formulas are used to predict the inner diameter (ID) of the ETT tube whether uncuffed or cuffed based on weight, age, height, and finger size. The accuracy of these formulas is questionable. These formulas depend on the child's demographic characteristics assuming that he/she has normal growth and development and cannot be applied to children with altered growth and development. Moreover, these formulas predict the ID of the ETT ignoring the tube thickness and the OD of the selected tube.
ultrasound has recently been identified as an accurate alternative to these formulas. The US-measured epiphyseal diameter of the distal radius is a method that has been recently introduced as a surrogate for the tracheal diameter. The issue is that the size of the airway can be considered a reflection of the body's growth, assuming that the growth rates of the cartilage all over the body are closely related to each other. Therefore, the measurement of the growth of the bony cartilage of the hand can be considered a surrogate marker of the tracheal diameter.9 The extent to which ultrasonography by this method can succeed in predicting the optimal pediatric ETT size remains under investigation.
Interventions
- Device Cuffed endotracheal tube
Patients will be intubated using a cuffed ETT with its OD determined by US measurement of the epiphyseal diameter of the distal radius. - Device UnCuffed ETT
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.
Primary outcome measures
- Agreement between the reference tube size based on US- Epiphyseal Diameter of distal radius measured OD and the final BFT [Time frame: At induction of anesthesia]
Eligibility criteria
Inclusion criteria
- 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.
Exclusion criteria
- Upper airway malformations.
- Upper airway surgery.
- Active respiratory illness (cough, fever, rhinorrhea) on the day of anesthesia,
- Anticipated difficult airway.
Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.
Healthy volunteers: No
Study design
- Observational model
- Cohort
Study locations
Egypt · 1 center
- Assiut university Pediatric hospital — Asyut
Identifiers
NCT: NCT06166927 · 04-2023-200515