→Heart pain - Ischemic heart disease: angina pectoris, myocardial infarction.
Angina is how the heart tells us that not enough oxygen which is required to do. This occurs when the coronary arteries (arteries that irrigate the heart with blood) are blocked due to atherosclerosis process. Following this process, on the artery wall is deposited fat calcified plaque, which will reduce blood flow to that level. Another cause of angina is represented by the situation in that effort that requires the heart is over capacity that it has or situations that need more oxygen than normal. Angina may also occur in other diseases such as anemia, aortic valvular disease, heart rhythm disorders or excessive thyroid function.
Coronary artery disease is the leading cause of death worldwide. In the U.S., for example, annually, over 1.5 million people make myocardial infarction and a third of them die from stroke. Overall, cardiovascular diseases kill more people than all other causes of deaths combined. Angina is common among those aged over 30 years and is more common in men. And considering the fact that at least one third of the population over 30 suffer from hypertension, and more precisely we can appreciate how serious the situation in this regard.
What is angina?
The medical term for angina pectoris, literally refers to a specific pain, published in the chest. There are several types of angina, the classic being called stable angina. It is determined by a certain effort and disappears at rest. If you have stable angina, you are certainly able to foresee which activities will trigger the crisis of angina.
Another type of angina is unstable angina. It is a progressive condition more serious, which can occur at rest or sleep, but may not be provided in any way. Unstable angina should be interpreted as a sign of severe heart disease, prior, sooner or later, a heart attack.
How does myocardial infarction?
Myocardial infarction, or heart attack, as it is called, occurs when a part of the heart muscle is completely deprived of blood and heart muscle cells die because of it. A heart attack can occur when plaque ruptures inside the heart arteries forming a clot that blocks blood flow through the artery. Such a board is made up of cholesterol, white blood cells, calcium and other components and is surrounded by a fibrous capsule. If pressure and blood flow increases suddenly, fibrous capsule may crack or break. As a result, the body receives signals to repair the inner lining of the artery affected, how would cure an external cut, forming a clot to seal the area. A blood clot that forms in the arteries can limit blood flow to heart muscle and thereby cause a heart attack.
Symptoms of angina pectoris.
- Pain is the most important sign. It is initially located in the middle of the chest and often radiates to the left upper limb, the neck or the abdomen. Construction chest pain creates a strong feeling of a claw that squeezes the entire chest. Some senses this pain only to a level peripheral (arm, neck). Sometimes, because of association with the sensation of heartburn, pain is mistaken for indigestion. Each time, however, pain is the same location and irradiation to the same person.
- Anginal pain lasts more than 5 minutes. If it lasts longer and is likely heart, this pain can be very perhaps consequence of a heart attack the pain lasts for hours.
- In case of stable angina, in addition to the above-mentioned exercise, pain can be caused by other circumstances such as a big meal, exposure to cold, strong emotion, sex, etc.. There are also a number of medications, some trivial, such as those we make when we have stuffy nose, which can cause angina crisis.
How heart attack occurs?
Myocardial infarction has multiple symptoms, but most relevant is chest pain. Pain caused by a heart attack usually lasts for 10 minutes and often other symptoms, including:
- Chest discomfort or pain oppressive, as if a weight on his chest - pain that spreads from the chest is the neck, jaw, one or both arms and shoulders and not go to sleep;
- Shorter and more frequent breaths;
- Nausea or vomiting;
- Rapid or irregular heartbeats.
It is important to recognize early stages of a heart attack and receive emergency care. Treatment is necessary to prevent death. Sometimes medications can be taken to reduce damage to heart muscle caused by a heart attack.