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  A traumatic pneumothorax occurs when a physical injury causing the lung to collapse resulting in a pneumothorax. Any physical injury such as a knife wound or a car accident can result in a pneumothorax.
Medical procedures such as transbronchial biopsy, thoracentesis, chest tube insertion, etc., can all increase the risk of a pneumothorax.
Approximately 3 out of 1,000 individuals are affected by traumatic pneumothorax each year.
Tension pneumothorax can occur without any prior lung conditions or diseases. In most cases, a tension pneumothorax results from the rupture of blebs (air-filled sac on the lung). As a result, air escapes from the lung and enters the chest cavity causing the lung to collapse. It differs from spontaneous pneumothroax in that the collapse is much more severe and can cause many serious medical problems.
As the air escapes from the lung and enters the pleural space, increased pressure can cause a mediastinal shift, in which the heart, trachea, and great vessels are pushed towards the unaffected side of the chest.
This can be a life-threatening emergency.
Causes
Causes of a tension pneumothorax differ depending on each situation. A penetrating trauma to the chest, lung infection, or a recurrent prior pneumothorax may all lead to a tension pneumothorax.
The reason why this occurs is unclear, although spontaneous pneumothorax has been attributed to tall, thin men (between 20 and 40 years of age); smokers; and in some cases, women during their menstrual cycles.
Symptoms
sudden chest pain shortness of breath chest tightness easy fatigue rapid heart rate bluish color of the skin caused by lack of oxygen pain in the arm stabbing sensation in the back
Detection and Tests
Using a stethoscope, a doctor may be able to determine decreased breathing sounds, and a possible collapse.
chest x-ray arterial blood gases
Treatment
The goal of treatment is to remove the air from the pleural space so that the lung can re-expand.
Tension pneumothorax requires immediate chest-tube insertion to allow the air to be released and the lung to re-expand.
Recurrent cases of pneumothoraces may require surgery to eliminate the chance of having future episodes.
Recurrent cases of spontaneous pneumothorax may become more serious. An x-ray is the only reliable method in determing the severity of each pneumothorax.
Prevention
The only known way of preventing a pneumothorax is to reduce the risk by not smoking.
Prognosis
Depending on the cause, as many as 50% of patients with a pneumothorax experience recurrence.
Call 911 if...
If you believe that you have a traumatic pneumothorax call an ambulance immediately.
Symptoms
sudden chest pain shortness of breath chest tightness easy fatigue rapid heart rate bluish color of the skin caused by lack of oxygen
Detection and Tests
Using a stethoscope, a doctor may be able to determine decreased breathing sounds, and a possible collapse.
chest x-ray arterial blood gases
Treatment
The goal of treatment is to remove the air from the pleural space so that the lung can re-expand.
For small pneumothoraces, the body may absorb the excess air on its own.
More serious cases may require a chest-tube insertion to allow the air to be released and the lung to re-expand.
Prevention
The only known way of preventing a pneumothorax is to reduce the risk by not smoking.
Prognosis
There are no long-term complications once successful therapy has been completed.
Call your doctor if...
Call your doctor or visit your local hospital if any of these symtoms develop.
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