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NCT Number: NCT06925165

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

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This study is active but is not currently recruiting participants.

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Key information

Conditions

Ultrasound

Age range

1 month–12 month

Sex eligibility

All sexes

Study type

Observational

Primary location

Ain Shams University

Cairo, Egypt, 11111

About this study

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.

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

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

Treatment and study plan

Primary outcomes

  1. role of ultrasound measured hyomental distance to tongue thickness ratio in predicting difficult intubation in infants.

    Time frame: 2 to 3 minutes after induction of anaesthesia and intubation

    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.

Sponsors and collaborators

Lead sponsor

Ain Shams University

Other

Registry information

Important dates

Study start
2025
Primary completion
2025
Study completion
2025
First posted
Apr 13, 2025
Registry last updated
Apr 13, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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