A heart-lung machine takes over the work of the heart and lungs during surgeries. It oxygenates and circulates blood when a person's heart or lungs can't work properly. While essential, using a ...

An exercise stress test, also known as a heart stress test, evaluates how well your heart functions during physical activity. Your heart requires more oxygen when you work out. You might not ...

Accurately measuring electrical signals and calcium levels in the heart can lead to earlier treatment of potentially fatal conditions, such as heart attack or congestive heart failure. Calcium plays ...

Heart failure is a serious condition that develops when the heart cannot pump enough blood to supply the body with oxygen. It often develops slowly, and early signs can be hard to detect. One of the ...