Ultrasound Measured Hyomental Distance to Tongue Thickness Ratio as a Predictor of Difficult Intubation in Infants

Evaluation the role of ultrasound measured hyomental distance to tongue thickness ratio in predicting difficult intubation in infants

Study Overview

• Status: Active, not recruiting
• Conditions: Ultrasound

Detailed Description

Sonographic assessment of the airway after induction of anesthesia and Master Degree Thesis / MFA/ISRO/ Faculty Of Medicine/ASU Page 6 intubation: All infants will be placed in a supine position with their heads slightly extended. Then, the low-frequency probe (curved) will be first placed under the chin in the midsagittal plane and adjusted to show a clear view of the entire tongue outline and the border of the mandible and hyoid bone on the screen. The image will be frozen and stored. On the image the tongue thickness will be measured, which is the maximum vertical distance from the sub mental skin to the tongue surface (Yao W, Wang B 2017). After that, the HMDE will be measured, which is the distance from the lower border of the mentum of the mandible to the upper border of the hyoid bone.

• Study Type: Observational
• Enrollment (Actual): 50

Contacts and Locations

Study Locations

• Egypt
  • Cairo, Egypt, 11111
    • Ain Shams University

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: Child
• Accepts Healthy Volunteers: Yes

• Sampling Method: Non-Probability Sample

Study Population

Infants aged 1 to 12 months

Description

Inclusion Criteria:

• Infants aged 1 to 12 months

Both sexes.

Physical status ASA I or II

Exclusion Criteria:

• Restricted mobility of temporomandibular joint
• Absent anesthesia or surgical consent
• Maxillofacial trauma or tumors
• A large mass or scar under the chin

Study Plan

How is the study designed?

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
role of ultrasound measured hyomental distance to tongue thickness ratio in predicting difficult intubation in infants.	Difficult intubation can be a significant life threatening problem in anesthesia which can lead to serious complications like hypoxia, aspiration, esophageal intubation, emergency surgical airway, cardiovascular instability, cardiac arrhythmias, ischemic encephalopathy, and death. In the study investigators will use hyomental distance and tongue thickness measured by ultrasound to suspect difficult intubation in infants aged 1 to 12 month.	2 to 3 minutes after induction of anaesthesia and intubation

Collaborators and Investigators

• Sponsor: Ain Shams University
• Investigators: Principal Investigator: Shaimaa Reda Ahmed, MBBCH, Anesthesia resident Ain Shams University

Study record dates

Study Major Dates

• Study Start (Actual): January 29, 2025
• Primary Completion (Estimated): July 29, 2025
• Study Completion (Estimated): July 29, 2025

Study Registration Dates

• First Submitted: March 6, 2025
• First Submitted That Met QC Criteria: April 6, 2025
• First Posted (Actual): April 13, 2025

Study Record Updates

• Last Update Posted (Actual): April 13, 2025
• Last Update Submitted That Met QC Criteria: April 6, 2025
• Last Verified: March 1, 2025

More Information

Terms related to this study

• Other Study ID Numbers: FMASU MS 53/2025

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: YES
• IPD Plan Description: all data will be shared once study is completed
• IPD Sharing Time Frame: before 1/2026
• IPD Sharing Access Criteria: free

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No
• product manufactured in and exported from the U.S.: No