The Use of a US-measured Styloid Process of the Distal Radius EET Diameter for Prediction of ETT Size
Trial Parameters
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.
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.