How does a coronary heart attack occur?

Answer 1

A heart attack or myocardial infarction occurs in areas of the heart that lack blood flow. Blood, carried by coronary arteries around the heart, would normally provide oxygen & nutrition while taking away carbon dioxide. Without oxygen, the area would become necrotic & myocardial cells would die.

Angina, or chest pain, is usually a precursor to a heart attack. Patients that experience chest pain should see their health care provider to possibly undergo a stress test. A cardiac catheterization may be needed to determine which coronary vessel(s), also called coronary arteries, is occluded or blocked. Occlusion occurs due to years of atherosclerosis, or buildup of lipids from diet & hereditary factors. If the left main coronary artery is blocked, usually a CABG (coronary artery bypass graft) is needed. If other arteries are involved, a coronary stent might be another option. If minimal occlusion is found during catheterization, a patient may just require an antiplatelet agent, such as aspirin or clopidogrel.

Answer 2

because you eat too much fat which builds up on the artery walls causing lesser blood flow to the heart causing heart attack or stroke. there are other causes like stress and aging arteries as well. other complex disorders cause CHD such as sleep apena (stop and start breathing while sleeping) and more.

Answer 3

Heart disease is a term that covers a variety of conditions that can lead to heart attack, stroke and death.

Answer 4

it usually starts when there is narrowing or blockage in the coronary arteries, the blood vessels that supply blood to the heart itself

Answer 5

smoking, drinking too much, blocked arteries, it can be passed down (hereditary), too little exercise, and taking drugs