A study to check whether the distance between bony condyle and ear tragus measured with the patient wearing surgical mask will be able to predict difficulty in giving breath via face mask under anaesthesia.

Not Applicable

• Registration Number: CTRI/2023/08/055978
• Lead Sponsor: Maulana Azad Medical College

Brief Summary

Not available

Detailed Description

Not available

Study Timeline

• Results First Posted: 1900-01-01
• Last Update Posted: 21 August 2023

Recruitment & Eligibility

• Status: ot Yet Recruiting
• Sex: Not specified
• Target Recruitment: 0

Inclusion Criteria

Patients scheduled for surgery under general anaesthesia requiring face mask ventilation.

1. Age 18 years and above

2. American Society of Anesthesiologists physical grade I, II, III

Exclusion Criteria

1. Patients in whom difficulty in achieving a proper face mask seal would be identifiable

with patient wearing surgical mask including but not limited to visible beard, visible

swelling on face, dressing over face

2. Patients with maxillofacial injuries

3. Edentulous

4. Patients unable to cooperate

5. Thyromental distance less than 6 cm, Sternomental distance less than 12 cm following standard technique

6. Limited head and neck movement.

7. BMI greater than or equal to 30 kg/m2

8. History of sleep apnea

9. Neck circumference greater than or equal to 40 cm

Study & Design

• Study Type: Observational
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
Condyle tragus distance with mouth open (in finger breadth & mm) measured while wearing surgical mask for prediction of DMV (Warters scale â?¥ 2) <br/ ><br>Timepoint: Warters scale will be measured 30 sec after loss of eyelash.

Secondary Outcome Measures

Name	Time	Method
1.Condyle tragus distance with jaw protruded (in finger breadth & mm) measured while wearing surgical mask for prediction of DMV (Warters scale â?¥ 2) <br/ ><br>2. Comparison of direct temporomandibular joint mobility indicators measured while wearing surgical mask (condyle tragus distance with mouth open & jaw protruded) with indirect temporomandibular joint mobility indicators measured without surgical mask (IID, MMP, & ULBT) for prediction of difficult mask ventilation. <br/ ><br> <br/ ><br>Timepoint: Warters scale will be measured 30 sec after loss of eyelash.