A heart attack is a life-threatening event that occurs when the coronary artery (the artery that supplies blood to the heart) is suddenly blocked. As a result, the heart muscle doesn’t get the oxygen it needs and becomes damaged. If left untreated, the heart muscle will begin to die.
The main job of the heart is to pump blood around your body and deliver essential oxygen and nutrients to your cells. Your heart muscle also needs its own supply of oxygen and nutrients and it gets this from coronary arteries. Sometimes, fatty deposits build up within the artery walls and form plaque. This build-up of plaque is called atherosclerosis. If the plaque breaks, a blood clot forms in this area and may block the coronary artery. This causes the heart muscle to be starved of blood and causes a heart attack.
Warning signs may not be what you think. They can vary from person to person, and they may not always be sudden or severe. It is vital to get treatment fast to limit damage to your heart.
Don’t delay – call 999 immediately if you think you or anyone else is having a heart attack.
These are the most common warning signs of a heart attack. You may have just one of these symptoms, or a combination:
Risks you can’t change…
Age: Men aged 45 or older, and women aged 55 or older are more likely to have a heart attack than are younger men and women.
Gender: Men are at risk for heart attacks much earlier in life than women. Oestrogen offers women protection from heart disease until after menopause, when this hormone drops.
Family History: Your risk of heart attack increases if any close family members (that is parents or siblings), have had a heart attack (by age 55 for male relatives and 65 for female relatives).
Race and Ethnicity: People of African Caribbean and South Asian origin have a much higher risk of heart disease.
Risks you can change…
High Blood Pressure: High blood pressure can do silent damage to the blood vessels leading to the heart.
High Blood Cholesterol: A high level of Low-Density Lipoprotein (LDL) or ‘bad cholesterol’ increases the chances of getting a heart attack.
Smoking: Smoking is a major risk for heart disease and doubles the risk of heart attack.
Lack of Physical Activity: Physical inactivity may be as harmful as cigarette smoking. Currently, only 1 in 3 adults are achieving the recommended level of physical activity. Regular physical activity lowers blood pressure, reduces stress and strengthens the heart muscle.
Being Overweight/Obese: This can raise your bad cholesterol levels, blood pressure and increase your risk of Type 2 diabetes.
Diabetes: Not producing enough insulin can cause your blood sugar levels to rise which can, in turn, increase the likelihood of you getting a heart attack.
Once you get to the hospital, the medical team will ask you questions regarding the type of pain and various symptoms you had, as well as how long they lasted. They may then conduct a number of tests to determine the diagnosis.
If you have been diagnosed with a heart attack, the medical team will work to restore blood flow through the coronary arteries as soon as possible. The sooner treatment is given, the more heart muscle that is saved. Each person will be treated according to their own circumstance as not everyone’s experience of heart attack is the same. Treatment may take the form of medication and/or surgical procedure.
Medication
The main reasons for taking the medicines prescribed to you are to:
There are different types of medication you may have to take during and after a heart attack, including:
Surgical Procedures
Coronary Angioplasty: If an angiogram shows that the artery is narrowed or blocked, then an angioplasty will be carried out to open up the artery. This involves inserting a tiny wire with a sausage shaped balloon into the blocked artery. Once the balloon is in position, it is inflated so that it pushes the clot and plaque to one side and opens up the artery. In addition, a stent may also be placed into the opened artery. A stent is a small tube of stainless steel mesh which, once in place, allows blood to flow back in to the part of the heart muscle that had its blood supply cut off.
Coronary Artery Bypass: In some cases, you may have to have a coronary artery bypass. This surgery is necessary when there is extensive narrowing of your arteries. It involves taking a healthy blood vessel from your arm, leg or chest, which is then connected to the blocked artery. This means it diverts the flow of blood around the blocked artery via a new path and improves blood flow to the heart muscle.
Most people recover from a heart attack in about 6-10 weeks. However, treatments and medication do not cure coronary heart disease. If you have already had a heart attack, then you are in danger of having another one in the future. Following your return home from hospital, your aim should be to keep your heart as healthy as possible to reduce this risk. You can do this by taking your medication, following the medical advice you received from the cardiac care team in the hospital, having regular check-ups with your doctor and making positive lifestyle changes.