Heart attacks and cardiac arrest differ in causes, symptoms, and treatments. Learn how recognizing these emergencies improves ...

Coronary microvascular dysfunction (CMD) refers to myocardial ischemia caused by decreased circulatory function in the coronary microvessels. In CMD, the endothelium of coronary arterioles becomes ...

Coronary artery disease (CAD), or the narrowing of the coronary arteries, is the leading cause of morbidity and mortality throughout the world. Atherosclerosis, or the buildup of plaque in the ...

a condition that clogs coronary arteries with fatty, calcified plaques. Irregular heart rhythm -- arrhythmia -- is when your heart doesn't keep up a good beat. Learn what it means here.

A new study has found that increased coronary vessel wall thickness is significantly associated with impaired diastolic ...