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

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

105 participants

Study Classification

OBSERVATIONAL

Study Start Date

2020-01-20

Study Completion Date

2021-01-20

Brief Summary

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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.

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Detailed Description

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Conditions

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Difficult Airway Intubation

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Study Groups

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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

No interventions assigned to this group

Eligibility Criteria

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Inclusion Criteria

* 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

Exclusion Criteria

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

Minimum Eligible Age

18 Years

Maximum Eligible Age

60 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No