Heart attacks are a major concern worldwide. It can lead to heart failure. It results in millions of deaths each year. Keep reading to know about its symptoms and causes…
Heart attack is a condition characterised by permanent damage to the heart muscle. It is also known as myocardial infarction (MI).
What are the symptoms?
- Pain, pressure, squeezing sensation or heaviness in the chest, arm or below breastbone
- Pain that radiates to the back, jaw, throat or arm
- Indigestion, choking feeling or abdominal pain
- Nausea or vomiting
- Sudden dizziness
- Irregular heartbeats
- Shortness of breath
What causes a heart attack?
The heart needs a continuous flow of oxygen-rich blood supply to keep it functioning. This blood is supplied by the coronary arteries. When a person has coronary heart disease, the coronary arteries will be filled by fatty matter, calcium, proteins etc. This is called plaque which is hard on the outside and soft on the inside.
When the outer layer cracks, platelets surround the plaque and blood clots are formed. These blood clots can totally block the artery. When the heart falls short of oxygen, permanent damage to the heart occurs. This is called heart attack.
In rare cases, a heart attack can also occur during a coronary spasm. In coronary spasm, the heart muscle will contract involuntarily; this in turn will lead to the shortage of oxygen to the heart. This can also occur in people who are at rest and who don’t have a coronary heart disease.
Each coronary artery supplies blood to a particular region of the heart. The amount of damage to the heart muscle depends on region and the time between the injury and the treatment.
The heart muscle can heal but it can’t contract by itself. The heart’s pumping ability reduces after a heart attack, which depends on the size and location of the region damaged.
You can cure a heart attack when you are aware of the symptoms. If you experience any of the symptoms, you should get your heart checked immediately. For more information, consult a cardiologist online at eVaidya now!
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