Health Condition 1: 4- Measurement and Monitoring
Conditions
Interventions
Intervention1: NIL: NIL
Sponsors
Dr Sunaina Tejpal Karna
Dr Rajesh Malik
Dr Saurabh Saigal
Eligibility
Inclusion criteria
Inclusion criteria: American society of anesthesiologist grade 1, 2,3.
Exclusion criteria
Exclusion criteria: 1. Gross anatomical abnormalities of upper airway 2. Airway pathologies preventing the use of clinical screening tests and/or USG of airway like - head and neck trauma/tumors/burns and scars/radiotherapy injuries, Neck abscess/hematoma, Rheumatoid arthritis, Ankylosing spondylitis. 3. Pregnancy. 4. BMI >40Kg/m2. 5. Previous history/documentation suggestive of difficult laryngoscopy / awake intubation. 6. Any modification of anesthesia protocol/cancellation of intubation for non-airway reasons. 7. Missing data on study variables. 8. Patient refusing informed consent.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Correlation of airway measurements done by 3-point USG with difficult laryngoscopy as assessed by Cormack-Lehane(C-L) grading. C-L grade 1 and 2 easy laryngoscopy, C-L grade 3 and 4 difficult laryngoscopy. Timepoint: USG measurements are done at Baseline, 1 hour before surgery in pre-operative room. Compared with intra-operative C-L grading done during laryngoscopy in operation theater, after the induction of anaesthesia at the time of intubation. | — |
Secondary
| Measure | Time frame |
|---|---|
| Evaluate the diagnostic profile of 3-point USG airway parameters in predicting difficult laryngoscopy. 3-point USG airway measured parameters like tongue thickness, the ratio of tongue thickness to the floor of mouth thickness, skin to epiglottis distance, hyomental distance can predict difficult laryngoscopy.Timepoint: USG measurements are done at baseline, 1 hour before surgery in the pre-operative room.;Compare the diagnostic profile of 3-point USG airway with commonly used clinical screening tests for predicting difficult laryngoscopy.Timepoint: USG measurements are done at baseline, 1 hour before surgery in the pre-operative room. Clinical screening tests for difficult laryngoscopy are done at baseline, 1 day before surgery in the pre-operative clinic.;Device a composite scoring system using statistically significant 3-point USG airway parameters.Timepoint: The composite scoring system will be developed during data analysis at the end of study. | — |
Countries
India
Contacts
Public ContactDr Parameshwar
AIIMS Bhopal
Outcome results
None listed