Evaluation of Mandibular Mental Angle and Mandibular Profile Angle

NCT05130645 | Unknown

• 1 other identifier: Mentum angle
• Study Type: observational
• Target: 1,000
• Locations: 0 countries
• Sites: N/A

Brief Summary

Airway management is extremely important for providing safe anesthesia. Endotracheal intubation, on the other hand, is the most important step in airway management, especially since it requires rapid and successful execution. Inadequate airway management; is associated with complications that require high-level care and cost, such as death, brain damage, increased need for intensive care, prolonged recovery period, and emergency tracheostomy. 15-25% of anesthesia-related deaths are associated with airway management. 17% of settled cases against anesthesiologists are composed of airway-related events (often difficult intubation, inadequate oxygenation/ventilation, and pulmonary aspiration). An important point in ensuring airway patency is preoperative evaluation. Difficulties arising from anatomical features can be revealed by careful evaluation of mouth opening, the structure of tongue and palate, thyromental distance (TMM), sternomental distance (SMM), mobility of cervical vertebrae, jaw occlusion, and necessary precautions can be taken. The most commonly used tests to determine the degree of difficulty of intubation are the modified Mallampati test, the thyromental distance, the upper lip bite test, the inter incisor space, and the sternomental distance. Recent studies are trying to confirm the sensitivity and specificity of existing tests. However, there is no test with 100% specificity and sensitivity in predicting difficult laryngoscopy and intubation.

Conditions

Intubation; Difficult or Failed

Outcome Measures

Primary Outcomes (2)

• Mandibular mental angle to predict the degree of difficulty in intubation

  The angle between the mentum of the mandibula and the lateral tips of the mandibula where the profiler ends

  5 min before intubation

• Mandibular profile angle to predict the degree of difficulty in intubation

  "Mandibular mental angle" is defined as; the angle between the mentum of the mandibula and the two ends of the mandibular arch.

  5 min before intubation

Secondary Outcomes (7)

• Cormack- Lehane grading system

  Procedure (During the use of direct laryngoscopy for intubation)

• Modified Mallampati test

  5 min before intubation

• Neck circumference

  5 min before intubation

• Thyromental distance

  5 min before intubation

• Sternomental distance

  5 min before intubation

Interventions

Mental Angle DIAGNOSTIC_TEST

In order to standardize and measure the mental angle, the projection of the mental will be accepted as the midline, the jaw structure will be transferred to the paper using the profile contour meter, and the angle between the angulus mandible and the mental will be measured and recorded with a digital protractor.

Also known as: Profiler Type Mental Angle

Eligibility Criteria

• Age: 18 Years - 80 Years
• Sex: all
• Healthy Volunteers: No
• Age Groups: Adult (18-64), Older Adult (65+)
• Sampling Method: Non-Probability Sample

Study Population

All patients who will operated under general anesthesia by endotracheal intubation

You may qualify if:

• General Anesthesia
• ASA I,II,III

You may not qualify if:

• Patients with upper respiratory tract tumors
• history of surgery, burns and trauma to the upper respiratory tract
• congenital head-neck anomaly,
• giant goiter, and
• pregnancy

Sponsors & Collaborators

• Diskapi Yildirim Beyazit Education and Research Hospital: lead

Study Officials

• Elif Şule Özdemir

  Diskapi Yildirim Beyazit ERH

  STUDY CHAIR

Central Study Contacts

Elif Şule Özdemir

CONTACT

+903125962524; elifsule-91@hotmail.com

Study Design

• Study Type: observational
• Observational Model: OTHER
• Time Perspective: PROSPECTIVE
• Target Duration: 5 Months
• Sponsor Type: OTHER GOV
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Principal Investigator

Study Record Dates

• First Submitted: November 11, 2021
• First Posted: November 23, 2021
• Study Start: November 28, 2021
• Primary Completion: March 20, 2022
• Study Completion: April 20, 2022
• Last Updated: December 9, 2021

Record last verified: 2021-11