UnknownNot Applicable

Thyromental Height Test as a Predictor of Difficult Airway:

612 participantsStarted 2020-02-20

Plain-language summary

Anesthesia is increasingly safe. Major complications of airway management are no more common but still the most life-threatening condition amongst anesthesia practice and even medicine. Thyromental height test (TMHT) is an objective measure of the height between the anterior borders of the mentum and thyroid cartilage, measured while the patient is lying supine with the mouth closed. This study was designed to assess the validity of the TMHT as a single objective predictor for difficult laryngoscopy and to be compared to other objective measures.

Who can participate

Age range

18 Years – 60 Years

Sex

ALL

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

Inclusion Criteria: * ASA physical status I \& II * Scheduled for elective surgical procedures under general anesthesia using endotracheal with conventional laryngoscopy Exclusion Criteria: * Patients with a body mass index \>35 kg/m2. * Patients with neuromuscular disorders, craniofacial abnormalities, and abnormal dentition. * Patients with airway diseases e.g cancer larynx or tongue, uncooperative patients, those who will need awake intubation and patients who will undergo emergency operations.

Questions worth asking your doctor

Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.

1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?

Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.

Questions for the trial coordinator

The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.

1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?

A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.

What they're measuring

validity of the TMHT in prediction of difficult airway in patients undergoing general anesthesia for elective surgeries using area under ROC curve for the TMHT.

Timeframe: baseline (before induction of general anesthesia)

Validity of TMHT in comparison with that of Modified Mallampati test (MMT) in prediction of difficult airway by comparing area under ROC curve for both tests.

Timeframe: baseline (before induction of general anesthesia)

Trial details

NCT IDNCT04264338

SponsorCairo University

Sponsor typeOTHER

Study typeOBSERVATIONAL

Primary completion2020-08-20

Contact for this trial

Abeer Ahmed, MD

01005244590 abeer_ahmed@kasralainy.edu.eg

View on ClinicalTrials.gov More Difficult Intubation trials

Plain-language summary

Who can participate

Age range

18 Years – 60 Years

Sex

ALL

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

What they're measuring

validity of the TMHT in prediction of difficult airway in patients undergoing general anesthesia for elective surgeries using area under ROC curve for the TMHT.

Timeframe: baseline (before induction of general anesthesia)

Validity of TMHT in comparison with that of Modified Mallampati test (MMT) in prediction of difficult airway by comparing area under ROC curve for both tests.

Timeframe: baseline (before induction of general anesthesia)