Hypobaria and Traumatic Pneumothorax (NCT01670942) | Clinical Trial Compass
CompletedNot Applicable
Hypobaria and Traumatic Pneumothorax
United States20 participantsStarted 2012-10
Plain-language summary
The purpose of this research is to see if people who have had a collapsed lung that has been re-expanded can be safely taken to an elevation that a person might experience while in a commercial airplane without having their lung partially collapse again, or have any symptoms such as feeling short of breath or having oxygen levels in the blood decrease while at the simulated altitude.
The investigators hypothesize that subjects who have had a collapsed lung that has been re-expanded will not have any adverse symptoms or signs while subjected to a simulated altitude of 8400 feet (565mm Hg) or 12650 ft (471mm Hg).
Who can participate
Age range18 Years
SexALL
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Inclusion criteria
✓. Inpatient status on trauma surgery service
✓. An established diagnosis of pneumothorax with a traumatic etiology (patients with iatrogenic pneumothorax from attempted central venous line placement will be considered to have a traumatic etiology)
✓. Age ≥ 18 at the time of injury
Exclusion criteria
✕. Pregnancy
✕. Unable to give informed consent
✕. Pneumothorax which does not satisfactorily resolve after treatment with tube thoracostomy and requires operative intervention such as video assisted thoracoscopic surgery (VATS) or thoracotomy
✕. Pneumothorax requiring tube thoracostomy where the tube has been removed for \< 4 or \> 48 hours
✕. Head injury with GCS \< 15 at time of evaluation for study
✕. Other injuries or conditions which would preclude participant's ability to remain in chamber for two hours
. NYHA class III or IV heart failure, active coronary artery disease, arrhythmias, pacemakers, implantable cardiac defibrillator, pulmonary hypertension, claustrophobia
✕. Severe obstructive or restrictive lung disease