Cardiac arrest can occur due to a heart attack, but it can also occur as a primary event. Unlike a heart attack, the heart stops beating when in cardiac arrest.
Cardiogenic shock is a rare, life-threatening condition that occurs when the heart suddenly can no longer supply oxygen-rich blood to vital organs in the body.
Cardiomyopathy is a disease of the heart muscle in which the heart may be enlarged and the muscle may be too thick or thin and not squeeze as well as it should.
Carotid artery disease occurs when the carotid arteries in the neck become narrowed and blocked due to plaque, which could eventually lead to a stroke.
Coarctation of the aorta is a congenital condition where the main blood vessel that carries oxygen-rich blood from the heart to the body (aorta) is narrowed.
Congenital heart disease (CHD) is a heart birth defect present at birth and is when something in the heart doesn’t form properly in the fetus during pregnancy.
Congenital heart valve abnormalities may result from valves that aren’t fully formed or are the wrong size or shape from birth, which may restrict blood flow.
Coronary artery disease (CAD) occurs when the blood vessels that carry oxygen-rich blood to the heart muscle become narrowed and hardened due to plaque buildup.
A coronary artery spasm is when the artery wall tightens and blood flow through the artery is restricted or cut off, causing chest pain or a heart attack.
Coronary microvascular disease is when blood doesn’t flow properly through the small (micro) blood vessels of the heart. It occurs more often in women than men.