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Study of indicators for difficult laryngoscopy

Airway evaluation using Upper lip bite test, Atlantooccipital extension, Thyromental distance, Interincisor gap and Mallampati classification in Indian adult surgical population

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
CTRI
Registry ID
CTRI/2016/01/006510
Enrollment
1914
Registered
2016-01-11
Start date
Unknown
Completion date
Unknown
Last updated
2025-03-03

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

Conditions

Health Condition 1: null- Adults undergoing elective non cardiac surgery under general anaesthesia requiring laryngoscopy

Interventions

None listed

Sponsors

Armed Forces Medical College
Lead Sponsor

Eligibility

Inclusion criteria

Inclusion criteria: Adults scheduled for elective non-cardiac surgery under general Anesthesia requiring endotracheal intubation

Exclusion criteria

Exclusion criteria: Nasal intubation Any period of gestation Requiring Laryngeal Mask airway Poor cardiopulmonary status as documented in preoperative checkup ASA status 3 and 4 Faciomaxillary trauma Tumours of upper airway, mandible or maxilla Emergency intubation Rapid sequence intubation

Design outcomes

Primary

MeasureTime frame
Incidence of difficult laryngoscopy by Cormack Lehane gradingTimepoint: At time of laryngoscopy—

Secondary

MeasureTime frame
Diagnostic accuracy of upper lip bite test, atlantooccipital extension, thyromental distance, interincisor gap and mallampati classification for difficult laryngoscopyTimepoint: At time of Laryngoscopy;Effect of OELM(optimal external laryngeal manipulation) on Cormack Lehane grading during LaryngoscopyTimepoint: At time of Laryngoscopy—

Countries

India

Contacts

Public ContactDr DV Bhargava

Armed Forces Medical College

chaturravi@gmail.com8135855155

Outcome results

None listed

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