Correlation of Neck Dimensions of Airway Evaluation

The goal of this observational study is to evaluate thyromental distance (TMD) and mandibular triangle perpendicular length (MTPL); to know which correlates better with the incisor vallecula distance (IVD). Based on the direction and strength of the correlation measure, a multiple regression equation can then be created to first predict the IVD with external linear measure, and second, based on IVD length prediction, the appropriate laryngoscope blade size can be ascertained.

NCT Number	NCT07668297
Lead Sponsor	Sir Ganga Ram Hospital
Conditions	Airway Assessment, Laryngoscopy
Enrollment	240 participants
Start Date	2026-06-25
Primary Completion	2027-07 (estimated)
Study Completion	2027-08 (estimated)
Updated on ClinicalTrials.gov	2026-06-30