Acute pulmonary embolism is a life-threatening condition because it places sudden strain on the right ventricle of the heart.

Pulmonary angiography is a test that studies blood flow in your lungs. Its purpose is to find problems such as pulmonary embolisms (blood clots in your lungs), stenosis (narrowed blood vessels), or ...

Receive the the latest news, research, and presentations from major meetings right to your inbox. TCTMD ® is produced by the Cardiovascular Research Foundation ® (CRF). CRF ® is committed to igniting ...

The first heart sound, or S1, is the "lub" of a normal heartbeat. It's a high-pitched sound that occurs at the beginning of systole—when the heart pumps blood out of the heart into the lungs or body.