A heart-lung machine is a piece of medical equipment that temporarily takes over the work of the heart and lungs, circulating oxygenated blood throughout the body. Also called a cardiopulmonary ...

Before heart-lung machines were available ... or it might take several. Time matters. Components of the blood can become ...

?] Pulmonary arterial hypertension happens when the arteries that carry blood from your heart to your lungs get narrow or blocked. This makes the blood pressure inside these arteries go up, and ...