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Clinical Trial Summary

Patients with chest trauma undergo ultrasound to detect a collapsed lung. Two techniques have been described. A single view for each hemi-thorax, and multiple views for each hemithorax. The investigators are comparing these two techniques in a randomized prospective trial.


Clinical Trial Description

This is a randomized, prospective blinded study on trauma patients arriving to an emergency department.

Study Setting and Population This study will be conducted on the University Campus of the University of Massachusetts Medical Center, which is an urban academic emergency department that sees 80,000 patients annually and has a dedicated Level I trauma service that is staffed by trauma surgery and emergency medicine. Adult patients with acute traumatic injury who are undergoing a CT scan of the chest are eligible for enrollment.

Study Protocol Trauma patients are enrolled as they arrived to the emergency department. The investigators will include any trauma patient aged 18 and over. The investigtors will exclude any patient who was too unstable and required clinical care that prevented performing a chest wall ultrasound, patients with a chest tube in place prior to arrival, pregnant women, and prisoners. Imaging decisions on trauma patients will be made early on in their evaluation. The patient will be assigned using a pre-determined randomization scheme to a single view or four views of each hemi-thorax prior to any imaging being done. Ultrasounds will be performed and interpreted by credentialed physicians using a 7.5Mhz linear array transducer on a portable ultrasound machine (Zonare z.one ultra) with digital clips recorded for later review. When the investigators obtain a single view of each hemi-thorax, the probe will be placed in a longitudinal orientation on the midclavicular line in the third intercostal space. When teh investigators obtain four views of each hemi-thorax, the first image location will be the same as in the single view and then the probe will be moved inferiorly and laterally to obtain the additional three images. Immediately following the ultrasound examination, the patient will be transported to the CT scanner for further imaging.

The goal of this study is to determine if a single view of each hemi-thorax can identify a pneumothorax or if additional images should be included. The primary study endpoint is the presence of a pneumothorax on ultrasound. ;


Study Design

Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Single Blind (Caregiver), Primary Purpose: Diagnostic


Related Conditions & MeSH terms


NCT number NCT02619591
Study type Interventional
Source University of Massachusetts, Worcester
Contact
Status Completed
Phase N/A
Start date September 2011
Completion date June 2014

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