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Comparison of ultrasoound scan guided marking of opening of windpipe before starting of anaesthesia and after starting anaesthesia

Accuracy of pre-induction ultrasound guided marking of cricothyroid membrane after optimized face mask ventilation in patients with anticipated difficult airway: Prospective descriptive study

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
CTRI
Registry ID
CTRI/2019/05/019473
Enrollment
217
Registered
2019-05-31
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: B- Imaging

Interventions

None listed

Sponsors

Jawaharlal Institute of Postgraduate Medical Education and Research
Lead Sponsor

Eligibility

Inclusion criteria

Inclusion criteria: Adult patients aged between 18 to 60 years belonging to American Society of Anaesthesiologists physical status classification 1and 2, undergoing scheduled elective surgeries under general anaesthesia (GA) with the presence of any one or more of the difficult airway predictors

Exclusion criteria

Exclusion criteria: Patients with neck deformity due to the following reasons: 1) Post-burn scar 2) Thyroid swelling 3) Previous tracheostomy scar 4) Neck abscess and 5) Previous neck surgery

Design outcomes

Primary

MeasureTime frame
To determine the proportion of patients with sagittal variance of more than 1/15th of total length of cricothyroid membrane after optimized face mask ventilation in patients with anticipated difficult airwayTimepoint: Before induction of general anaesthesia and after optimized face mask ventilation—

Secondary

MeasureTime frame
To describe the average dimension of cricothyroid membrane in Indian population in terms of width, length of cricothyroid membrane and depth from skinTimepoint: Before induction of general anaesthesia;To determine the anatomical structure which occupies the previous location of cricothyroid membrane if there is any change in position of the cricothyroid membrane after optimized face mask ventilation Timepoint: After initiation of optimized face mask ventilation—

Countries

India

Contacts

Public ContactDr Sakthirajan Panneerselvam

Jawaharlal Institute of Postgraduate Medical Education and Research

sakthiab8@gmail.com04132296161

Outcome results

None listed

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