Cardiomyopathy is a condition in which the heart muscle has difficulty pumping blood. Learn about symptoms and treatment.
ECMO is a machine that takes over heart and lung function when a patient’s organs don't work on their own. Learn more about this process.
Pulse oximetry is a noninvasive method of measuring the saturation of oxygen in a person's blood.
When the heart stops pumping blood, it's called cardiac arrest.