Thyromental Height Test (TMHT) as a Predictor of Difficult Airway in Obese Patients

NCT04212156 | Completed

• 1 other identifier: Ms-266-2019
• Study Type: observational
• Target: 105
• Locations: 1 country
• Sites: 1

Brief Summary

Difficult airway management is a major concern for anesthetists and contributes to perioperative morbidity and mortality. The incidence of difficult intubation in the obese population with a BMI of greater than 30 has been reported to be 15.8%. Thyromental height test (TMHT) is a new bedside test for difficult airway, it is a measure of the height between the anterior borders of the mentum and thyroid cartilage. TMHT can act as a surrogate for amount of mandibular protrusion; dimensions of submandibular space; and anterior position of the larynx. It appears promising as a single anatomical measure to predict the risk of difficult laryngoscopy.

Conditions

Difficult Airway Intubation

Outcome Measures

Primary Outcomes (1)

• TMHT

  Validity of TMHT for prediction of difficult airway in obese patient undergoing general anesthesia

  before induction of general anesthesia

Study Arms (1)

TMH test

Patient will be asked to lay supine while the head and neck maintained in a neutral position using a pillow under the head. By using digital depth gauge, the TMH will be measured from the anterior border of the thyroid cartilage directly on the thyroid notch till the anterior border of the mentum

Eligibility Criteria

• Age: 18 Years - 60 Years
• Sex: all
• Healthy Volunteers: No
• Age Groups: Adult (18-64)
• Sampling Method: Probability Sample

Study Population

Patients of both sex, aged between 18-60 years old, ASA physical status II\& III with BMI \> 30 Kg/m2 who will undergo elective surgical procedures under general anesthesia using endotracheal intubation using conventional laryngoscopy

You may qualify if:

• Patients aged between 18-60 years old, ASA physical status II\& III with BMI \> 30 Kg/m2 who will undergo elective surgical procedures under general anesthesia using endotracheal intubation with conventional laryngoscopy

You may not qualify if:

• Patients with neuromuscular disorders, craniofacial abnormalities, abnormal dentition, uncooperative, who need awake intubation and patients who undergoing emergency operations will be excluded

Sponsors & Collaborators

• Cairo University: lead

Study Sites (1)

Abeer Ahmed

Maadi, Cairo Governorate, 11562, Egypt

Location

Study Design

• Study Type: observational
• Observational Model: COHORT
• Time Perspective: PROSPECTIVE
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Assistant Professor of Anesthesia, SICU & pain management. Kasralainy Faculty of medicine

Study Record Dates

• First Submitted: December 23, 2019
• First Posted: December 26, 2019
• Study Start: January 20, 2020
• Primary Completion: January 20, 2020
• Study Completion: January 20, 2021
• Last Updated: May 17, 2021

Record last verified: 2021-05

Locations

EG (1)