Ultrasonographic Airway Assessment in Predicting Difficult Laryngoscopy in Pediatric Patients Undergoing Elective Surgery

Recruiting

• Conditions: Ultrasonographic; Airway; Difficult Laryngoscopy; Pediatric; Elective Surgery

• Registration Number: NCT06667921
• Lead Sponsor: Tanta University

Brief Summary

This study aims to evaluate the diagnostic accuracy of ultrasonographic airway examination in predicting difficult laryngoscopy in pediatric patients undergoing elective surgery.

Detailed Description

A difficult airway in a paediatric patient can be a stressful situation for anaesthesiologists as the most common causes of anaesthesia-related deaths were the result of difficult intubation, which is a more common problem in children than in adults.

Ultrasonography is a valuable, promising tool for preoperative airway evaluation through identifying important son anatomy of the upper airway, such as epiglottis, thyroid cartilage, and vocal cords.

Many studies have shown that some ultrasonic parameters can predict difficult airways in adults, such as tongue thickness, hyomental distance in the extended position (HMDE), distance from skin to epiglottis (DSE), tongue volume, midsagittal tongue cross-sectional area (TCSA), and tongue width. However, whether these parameters can be used to predict difficult laryngoscopy in children is unclear and needs extensive studies

Study Timeline

• Status Verified: 2024-10
• Study First Submitted: 2024-10-30
• Study First Submitted QC: 2024-10-30
• Study Start: 2024-10-31
• Study First Posted: 2024-10-31
• Last Update Submitted: 2024-10-31
• Last Update Posted: 2024-11-01
• Primary Completion: 2025-09-01
• Study Completion: 2025-09-01

Recruitment & Eligibility

• Status: RECRUITING
• Sex: All
• Target Recruitment: 308

Inclusion Criteria

• Children aged (2-5) years old.
• Both sexes.
• American Society of Anesthesiology (ASA) physical status I or II.
• Undergoing elective surgery under general anaesthesia with endotracheal intubation.

Exclusion Criteria

• Maxillofacial trauma
• Large mass.
• Scar under the chin.
• History of neck surgery or congenital anomalies of the head and neck as difficult intubation is expected in these cases.

Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
Accuracy of ultrasound measurement of hyomental distance ratio (HMDR)	10 minutes till placement of endotracheal tube	Accuracy of ultrasound measurement of hyomental distance ratio (HMDR) in predicting difficult laryngoscopy will be recorded

Secondary Outcome Measures

Name	Time	Method
Accuracy of ultrasound measurement of distance from skin to epiglottis (DSE)	10 minutes till placement of endotracheal tube	Accuracy of ultrasound measurement of distance from skin to epiglottis (DSE) in predicting difficult laryngoscopy
Correlation between the pre-anaesthetic ultrasonographic airway assessment, hyomental distance ratio (HMDR) and distance from skin to epiglottis (DSE)	10 minutes till placement of endotracheal tube	Correlation between the pre-anaesthetic ultrasonographic airway assessment, hyomental distance ratio (HMDR) and distance from skin to epiglottis (DSE), with the modified Cormack-Lehane grade of direct laryngoscopic view under general anaesthesia.; The laryngoscopic view of the patient's airway will be graded using the Modified Cormack and Lehane grading scale; grades 1 and 2 are considered easy laryngoscopy, and grades 3 and 4 are considered difficult laryngoscopy.; Grade 1: the whole glottis is visible. Grade 2: part of the cords is visible. Grade 3: only epiglottis is visible. Grade 4: epiglottis isn't visible.

Trial Locations

Locations (1)

Tanta University; 🇪🇬 Tanta, El-Gharbia, Egypt