Sonographic Evaluation to Predict Difficult Airway Management

Completed

• Conditions: Upper Airway Sonographic Evaluation; Airway Management
• Interventions: Diagnostic Test: upper airway sonography

• Registration Number: NCT03991325
• Lead Sponsor: Mongi Slim Hospital

Brief Summary

the aim of this study was to evaluate the accuracy of different ultrasonographic parameters and clinical tests to predict difficult airway assessment.

Ultrasonographic parameters were: hyo-mental distence, tongue width, skin to epiglottis distence and skin to hyoid bone distence. these parameters were recorded and their predictive acurracy was studied.

Detailed Description

the aim of this study was to evaluate the accuracy of different ultrasonographic parameters and clinical tests to predict difficult airway assessment.

Ultrasonographic parameters were: hyo-mental distence, tongue width, skin to epiglottis distence and skin to hyoid bone distence. these parameters were recorded and their predictive acurracy was studied.

This study analyzed a sample size of 200 patients undergoing elective or urgent surgery under general anesthesia and recieving neuromuscular blocking agent before laryngoscopy.

the correlation between ultrasonographic parameters and difficult laryngoscopy was studied

Study Timeline

• Study Start: 2019-03-01
• Primary Completion: 2019-05-30
• Study Completion: 2019-05-30
• Status Verified: 2019-06
• Study First Submitted: 2019-06-17
• Study First Submitted QC: 2019-06-18
• Last Update Submitted: 2019-06-18
• Study First Posted: 2019-06-19
• Last Update Posted: 2019-06-19

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 200

Inclusion Criteria

• patients scheduled for orthopedic or viseral surgery under general anesthesia and tracheal intubation.

Exclusion Criteria

• patients with suspected tracheal stenosis
• Patients with a poor quality ultrasonographic exam

Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Arm && Interventions

Group	Intervention	Description
easy laryngoscopy	upper airway sonography	group of patients with Cormack and Lehane grade I or II
difficult laryngoscopy	upper airway sonography	group of patients with Cormack and Lehane grade III or IV

Primary Outcome Measures

Name	Time	Method
prediction of difficult laryngoscopy with ultrasonographic criteria	5 min after induction of general anesthesia determined by Cormack and Lehane grade	incidence of difficult laryngoscopy

Secondary Outcome Measures

Name	Time	Method
prediction of difficult mask ventilation with ultrasonographic criteria	3 min after induction of general anesthesia	Incidence of difficult ventilation

Trial Locations

Locations (1)

Mongi Slim Hospital; 🇹🇳 La Marsa, Tunis, Tunisia