Treatment:
Often, no treatment is required as the air is gradually absorbed from the mediastinum. If pneumomediastinum is accompanied by pneumothorax, a chest tube may be placed. Breathing high concentrations of oxygen may allow the air in the mediastinum to be absorbed more quickly.
Expectations (prognosis):
The outlook depends on the disease or events that caused the pneumomediastinum.
Complications:
In rare cases, so much air may accumulate in the mediastinum that veins are compressed, leading to low blood pressure.
Calling your health care provider:
Go to the emergency room or call the local emergency number (such as 911) if you have severe chest pain or difficulty breathing.