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Ultrasonography in Confirming Proper Position of Endotracheal Tube

This study has been completed.
Information provided by:
Mahidol University Identifier:
First received: June 9, 2011
Last updated: June 14, 2011
Last verified: June 2011
The purpose of this study is to assess the applicability of using ultrasonography in confirmation of the position of the endotracheal tube (ETT) after intubated to patients.

Condition Intervention
Endotracheal Tube Wrongly Placed During Anesthetic Procedure
Device: Ultrasonography (Sonosite )

Study Type: Observational
Study Design: Observational Model: Case-Only
Time Perspective: Prospective
Official Title: Ultrasonography in Confirming Proper Position of Endotracheal Tube in Emergency Department at Siriraj Hospital: Applicability and Accuracy

Resource links provided by NLM:

Further study details as provided by Mahidol University:

Primary Outcome Measures:
  • The confirmation of ETT depth [ Time Frame: 1 hour ]
    A transcricothyroid membrane view of the ultrasonography was chosen for confirmation of ETT depth measurement. Firstly, measured the distance from probe (skin) to anterior surface of ETT. Then, measured the distance from probe (skin) to balloon cuff level. Finally the depth of ETT (Distance from vocal cord to balloon cuff) was calculated by using Pythagorus rule.

Secondary Outcome Measures:
  • The confirming the presence of ETT in airway. [ Time Frame: 1 hour ]
    A transcricothyroid membrane view was chosen for confirmation of ETT position. Various glottic structures such as True Vocal Cord (TVC), False Vocal Cord (FVC), and arythenoid cartilage can be visualized.

Enrollment: 80
Study Start Date: September 2010
Study Completion Date: December 2010
Primary Completion Date: December 2010 (Final data collection date for primary outcome measure)
Groups/Cohorts Assigned Interventions
Intubate Device: Ultrasonography (Sonosite )
Sonosite MICROMAXXTM with linear probe L38e/10-5 MHz

Detailed Description:

To assess the applicability of using ultrasonography as compared to routine portable CXR in confirmation of ETT position.

To determine the accuracy of ultrasonography in measuring the depth of ETT as compare to standard CXR method.


Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Sampling Method:   Non-Probability Sample
Study Population
The patients who visited the emergency department, Siriraj hospital and needed ETT intubation as their adequate treatment. In the period from September 2010 to November 2010.

Inclusion Criteria:

  • age >18 years old with either endotracheal or nasotracheal intubation
  • having normal airway anatomy
  • performed portable CXR after intubation

Exclusion Criteria:

  • presence in history of neck radiation, cervical spine immobility/instability
  • unstable vital signs
  • unwilling to participate or denial of informed consent
  Contacts and Locations
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Please refer to this study by its identifier: NCT01373437

Anesthesiology Department
Bangkok, Thailand, 10700
Sponsors and Collaborators
Mahidol University
Study Director: Phuriphong Songarj, MD Faculty of Medicine Siriraj Hospital, Mahidol University, Thailand
  More Information

Responsible Party: Dr.Phuriphong Songarj, Department of Anesthesiology Identifier: NCT01373437     History of Changes
Other Study ID Numbers: 345/2553(EC4)
Study First Received: June 9, 2011
Last Updated: June 14, 2011

Keywords provided by Mahidol University:
Endotracheal tube
Emergency department
Accuracy processed this record on April 28, 2017