A study comparing ultrasound measurement of the cricoid catilage with the traditional method i.e height and sex of the patient for choosing the correct breathing double lumen tube size used during chest surgery

A Randomised study to compare the accuracy of conventional method versus cricoid cartilage diameter measurement by ultrasonography for predicting the correct double lumen tube size at SMS Medical College , Jaipur - NIL

Status

Active, not recruiting

Phases

Phase 2

Study type

Interventional

Source

CTRI

Registry ID

CTRI/2025/11/096979

Enrollment

Registered

2025-11-06

Start date

Unknown

Completion date

Unknown

Last updated

2025-11-17

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 Health Condition 2: O- Medical and Surgical

Interventions

Intervention1: SELECTING DOUBLE LUMEN TUBE DOUBLE LUMEN TUBE SIZE BASED ON CRICOID CARTILAGE DIAMETER MEASUREMENT BY USG.: PATIENTS CRICOID CARTILAGE DIAMETER WILL BE TAKEN BY PLACING PROBE ON ANTERIO

Eligibility

Inclusion criteria

Inclusion criteria: 1.Patient aged between 18 to 60 years of either sex. 2.American society of anaesthesiologist [ASA] grade class I-III patient 3.Patient requiring one lung ventilation with double lumen tube for thoracotomy

Exclusion criteria

Exclusion criteria: 1. Anticipated difficult airway. 2. poor ultrasound image of cricoid cartilage 3. Patient taking part in any other study 4. History of tracheostomy

Design outcomes

Primary

Measure	Time frame
Assess and compare two methods for predicting correct double lumen tube sizeTimepoint: time taken for correct placement of tube and intubation	—

Secondary

Measure	Time frame
1.To determine the difference in number of intubation attempt needed in between 2 groups 2. To compare correct size of double lumen tube selected on basis of two methods. 3. To assess & compare complications and incidence of intubation related injuries in between two groupsTimepoint: 1.Mean time taken for intubation 2. Mean no of intubation attempt 3.Mean score of quality of lung collapse 4. mean difficulty assessment score	—

Measure

Time frame

1.To determine the difference in number of intubation attempt needed in between 2 groups 2. To compare correct size of double lumen tube selected on basis of two methods. 3. To assess & compare complications and incidence of intubation related injuries in between two groupsTimepoint: 1.Mean time taken for intubation 2. Mean no of intubation attempt 3.Mean score of quality of lung collapse 4. mean difficulty assessment score

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Countries

India

Contacts

Public ContactNeha Singh

sawai man singh medical college

reemadr.rn@gmail.com9413237117

Outcome results

None listed

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