(Acute Coronary Syndrome )
A heart attack occurs when the flow of blood to the heart is blocked. The blockage is most often a buildup of fat, cholesterol and other substances, which form a plaque in the arteries that feed the heart (coronary arteries).
A lack of blood to the heart may seriously damage the heart muscle then cause Heart attack, also called a myocardial infarction, can be "fatal".
it’s important to take care of yourself. Look to those around you for help during this time. Talk to your doctor for specific advice or if you have any concerns.
People who experience some of signs should go to head to the hospshital. After all, nausea or neck pain can have other, not-so-serious causes. And a feeling that something “just isn’t right?” That’s frustratingly vague and hard to explain to a doctor.
While most heart attacks are sudden and unmistakable, some might come on more gradually, Some of the common early warning signs include:
Sometimes a coronary artery temporarily contracts or goes into spasm. When this happens the artery narrows, and blood flow to part of the heart muscle decreases or stops.
The causes of spasms are unclear. A spasm can occur in normal-appearing blood vessels as well as in vessels partly blocked by atherosclerosis. A severe spasm can cause a heart attack.
Another rare cause of heart attack is spontaneous coronary artery dissection, which is a spontaneous tearing of the coronary artery wall.