Myocardial ischemia occurs when there is a reduced blood flow to the heart muscle, which can be caused by several factors. The most common cause is atherosclerosis, a condition where plaques build up in the arteries, narrowing the space through which blood can flow. These plaques can rupture, leading to the formation of a blood clot. If the clot is large enough, it can block an artery completely, causing sudden and severe myocardial ischemia, which can result in a heart attack. read more >>

Atherosclerosis is the most common cause of myocardial ischemia. Blood clot. The plaques that develop in atherosclerosis can rupture, causing a blood clot. The clot might block an artery and lead to sudden, severe myocardial ischemia, resulting in a heart attack.read more >>