Airway, Difficult Laryngoscopy, Elective Surgery, Pediatric, Ultrasonographic
Conditions
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
Interventions
DEVICEUltrasound
Ultrasound will be used to measure the hyomental distance in neutral position (HMDRn), hyomental distance in extended position (HMDRe), (HMDR) and (DSE).
Sponsors
Tanta University
Study design
Observational model
COHORT
Time perspective
PROSPECTIVE
Eligibility
Sex/Gender
ALL
Age
2 Years to 5 Years
Healthy volunteers
No
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.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| 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
| Measure | Time frame | Description |
|---|---|---|
| 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. |
Countries
Egypt
Contacts
Primary ContactMohammed M Abo Farrag, Master
Outcome results
None listed