The Validity of the Thyromental Height Test as a Predictor of the Difficult Airway: A Prospective Comparative Study With Interincisor Distance, Thyromental Distance, Sternomental Distance & Modified Mallampati Test
Trial Snapshot
- Phase
- Not Applicable
- Sponsor
- Cairo University
- Enrollment
- 612
- Primary Endpoint
- 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.
Study Overview
Brief 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.
Study Design
- Study Type
- Observational
- Observational Model
- Cohort
- Time Perspective
- Prospective
Eligibility Criteria
- Ages
- 18 Years to 60 Years (Adult)
- Sex
- All
- Accepts Healthy Volunteers
- No
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/m
- •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.
Outcomes
Primary Outcomes
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.
Time Frame: 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.
Time Frame: baseline (before induction of general anesthesia)
Secondary Outcomes
No secondary outcomes reported
Investigators
Abeer Ahmed, MD
Assistant Professor of Anesthesia, SICU & pain management. Kasralainy Faculty of medicine
Cairo University