Utility of Bedside Ultrasound in the Prediction of Difficult Airway

This study has been completed.
The Association for Medical Ultrasound
Information provided by:
University of Nebraska
ClinicalTrials.gov Identifier:
First received: November 26, 2008
Last updated: January 11, 2010
Last verified: January 2010
A variety of pre-intubation clinical screening tests have been advocated to predict difficult laryngoscopy, but their usefulness is limited in emergency department, intensive care unit, pre-hospital and combat settings. Patients in these settings are often confused, lethargic, obtunded, uncooperative and common screening tests for difficult laryngoscopy cannot be applied in a large number of emergency intubations. In the recent past, there has been growing interest in upper airway ultrasound. The purpose of this study is to assess the utility of bedside ultrasound to predict difficult airway in patients requiring emergency intubation.


Study Type: Observational
Study Design: Time Perspective: Cross-Sectional
Official Title: Utility of Bedside Ultrasound in the Prediction of Difficult Airway

Resource links provided by NLM:

Further study details as provided by University of Nebraska:

Primary Outcome Measures:
  • Predictors of difficult laryngoscopy [ Time Frame: one day ] [ Designated as safety issue: No ]

Estimated Enrollment: 162
Study Start Date: December 2008
Study Completion Date: June 2009
Primary Completion Date: June 2009 (Final data collection date for primary outcome measure)

Ages Eligible for Study:   19 Years and older
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No
Sampling Method:   Probability Sample
Study Population
Pre-op patients

Inclusion Criteria:

  • Patients scheduled for any surgery under general anesthesia with endotracheal intubation

Exclusion Criteria:

  • Upper airway pathologies (facial fractures, tumours, etc)
  • Cervical spine fractures
  • Tracheostomy tube
  • unable to give consent
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Please refer to this study by its ClinicalTrials.gov identifier: NCT00799357

United States, Nebraska
University of Nebraska Medical Center
Omaha, Nebraska, United States, 68198
Sponsors and Collaborators
University of Nebraska
The Association for Medical Ultrasound
Principal Investigator: Srikar R Adhikari University of Nebraska