tension pneumothorax


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Related to tension pneumothorax: flail chest, open pneumothorax

ten·sion pneu·mo·thor·ax

a pneumothorax in which air enters the pleural cavity and is trapped during expiration; intrathoracic pressure builds to levels higher than atmospheric pressure, compresses the lung, and may displace the mediastinum and its structures toward the opposite side, with consequent cardiopulmonary impairment.
Farlex Partner Medical Dictionary © Farlex 2012

tension pneumothorax

A life-threatening emergency caused by air under pressure in the pleural space due to a one-way valve mechanism, which allows increased entry of air and eventually complete lung collapse on the affected side, accompanied by mediastinal shift of thoracic organs (heart, trachea, oesophagus) and great vessels towards the unaffected side of the chest, and compression of the opposite lung with compromise in the return flow of blood to the heart.
 
Aetiology
Penetrating trauma to the chest, infection, mechanical ventilation with high pressures, and as a complication of CPR.
 
Management
Chest tube drainage, or pleurodesis.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.

tension pneumothorax

Critical care A life-threatening emergency consisting of air under pressure in the pleural space, due to a one-way valve type mechanism, allowing ↑ entry of air and eventually complete lung collapse on the affected side, which is acompanied by mediastinal shift of thoracic organs–heart, trachea, esophagus, and great vessels towards the unaffected side of the chest, and compression of the opposite lung with compromise in the return flow of blood to the heart Etiology Penetrating trauma to the chest, infection, mechanical ventilation with high pressures, and as a complication of CPR Management Chest tube drainage, or pleurodesis. See Pneumothorax.
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
For example, in the tension pneumothorax scenario, participants were able to collect data such as absence of breath sounds and increased resonance on the affected side, cyanosis, deviated trachea, reduced pulse oximetry, etc.
The nurse also continued to monitor the patient's respiratory status after the procedure because of the potential for a tension pneumothorax if blood had not been flushed completely through the chest drain.
A clinical diagnosis of tension pneumothorax was made and it was decompressed with a needle in the right second anterior rib space.
The second most common medically preventable cause of combat death is a tension pneumothorax, which is pressure that accumulates within the chest cavity that affects the lung and vital organs.
The cause of death was listed as a tension pneumothorax, a condition in which air trapped in the Neural cavity, builds pressure and compresses the lung.
The combat lifesaver is trained to provide immediate care that can save a casualty's life, such as stopping severe bleeding, administering intravenous fluids to control shock and performing needle chest decompression for a casualty with tension pneumothorax [buildup of air around the lung(s)].
Pulsus paradoxus can indicate severe airway obstruction (Clark, Lieh-Lai, Thomas, Raghavan, & Sarnaik, 2004) or other life-threatening conditions such as hypovolemia, cardiac tamponade, or tension pneumothorax. Early recognition of pulsus paradoxus is able to guide appropriate interventions.
The modifications address the two leading causes of death on the battlefield--bleeding from extremity wounds and tension pneumothorax. Extremity wounds account for more than 60 percent of all wounds on today's battlefields.
It can be used with disposable chest drainage units that incorporate an underwater seal, and it features a pressure relief mechanism to minimize the potential for tension pneumothorax. The patented gauge allows excellent visibility and requires no calibration.
[O.sub.2] jet ventilation delivered via the lumen of the catheter can result in barotrauma and tension pneumothorax. (17) In such a case, barotrauma occurs when the volume of air entry exceeds that of air exit.