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A study comparing two methods (using persons height with two different neck measurements)to see which one better predicts if a patient might have a difficult airway during planned surgery under general anaesthesia

Comparison of the diagnostic values of height to hyomental distance ratio and height to thyromental distance ratio in predicting difficult airway in adult patients posted for general anaesthesia - NIL

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
CTRI
Registry ID
CTRI/2025/07/091250
Enrollment
138
Registered
2025-07-21
Start date
Unknown
Completion date
Unknown
Last updated
2025-08-18

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Health Condition 1: O- Medical and Surgical

Interventions

Intervention1: Nil: Nil Intervention2: Nil: Nil Intervention3: Nil: Nil Intervention4: Height to hyomental distance ratio: Not applicable Intervention5: Hyomental distance: Under ultrasound guidance,t

Sponsors

Esic medical college and hospital
Lead Sponsor

Eligibility

Inclusion criteria

Inclusion criteria: Patients belonging to ASA 1,2 and 3 18-70years of both the sexes Patient posted for elective surgeries under general anaesthesia BMI UPTO 40

Exclusion criteria

Exclusion criteria: Major airway abnormalities Restricted Neck mobility Neck tumours Post burn contractures Pregnancy Kyphoscoliosis BMI of more than 40 and those requiring rapis sequence intubation

Design outcomes

Primary

MeasureTime frame
Identification of the better predictor either TMD Or HMD is expected to demonstrate higher predictive accuracy for difficult laryngoscopy as shown by -greater sensitivity,specificity and higher the area under the curveTimepoint: 30minutes before intubation—

Secondary

MeasureTime frame
NilTimepoint: Nil—

Countries

India

Contacts

Public ContactDr Premkumar D

Esic medical college and hospital

sun_gallant@yahoo.in9600614533

Outcome results

None listed

Source: CTRI (via WHO ICTRP) · Data processed: Feb 4, 2026