In the reports on vital capacity in the literature, instructions to the patients were not described in detail. In our experience variations in the results of serial determinations were traced in many ...

Emphysema is a lung disease that damages the air sacs, making it difficult to breathe, especially during physical activity. Smoking is the primary cause of emphysema, but exposure to irritants, ...

Subcutaneous emphysema is the medical term for air becoming trapped in tissues beneath the skin. It is rare, but may occur as a result of trauma, injury, infection, or certain medical procedures.

Surgical emphysema is another term for subcutaneous emphysema. It occurs when air or gas enters the subcutaneous tissue, which is the deepest layer of the skin. People can develop surgical emphysema ...