To correlate position of larynx seen under ultrasound machine and seen with help of direct laryngoscopy

Comparison of laryngeal position using ultrasound imaging vs direct laryngoscopy in neutral and sniffing position

Status

Active, not recruiting

Phases

Phase 4

Study type

Observational

Source

CTRI

Registry ID

CTRI/2018/02/011728

Enrollment

215

Registered

2018-02-06

Start date

Unknown

Completion date

Unknown

Last updated

2021-11-24

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

Conditions

Health Condition 1: null- Posted for elective surgery under general anaesthesia

Interventions

Intervention1: NIL: NIL Control Intervention1: NIL: NIL

Eligibility

Inclusion criteria

Inclusion criteria: 1.Willingness to participate in the study 2.ASA I or II physical status 3.Surgeries under general anesthesia requiring endotracheal intubation

Exclusion criteria

Exclusion criteria: 1.ASA III or above 2.Mouth opening less than 2 finger breadth 3.Temporo mandibular joint stiffness 4.Ankylosing spondylosis 5.Submucosal fibrosis 6.Pregnancy 7.Buck tooth 8.Any cervical spine pathology 9.Infections of airway

Design outcomes

Primary

Measure	Time frame
To correlate position of larynx on ultrasound with direct laryngoscopy in sniffing position and neutral positionTimepoint: Ultrasonography before starting of anaesthesia Cormack Lehane grading at laryngoscopy	—

Secondary

Measure	Time frame
To correlate Cormack Lehane grading with mentohyoid distance and anterior neck soft tissue thickness on ultrasound in both positions.Timepoint: Ultrasonography before starting of anaesthesia Cormack Lehane grading at laryngoscopy	—

Countries

India

Contacts

Public ContactDr pranjali Kurhekar

Shri sathya sai medical college and research institute.

pranjalikurhekar@gmail.com044-27440700

Outcome results

None listed

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