Coronary heart disease (CHD) is a disorder caused by constriction or inhibition of the arteries carrying blood to the heart muscle. When the narrowing becomes severe they can lead to heart attacks. The narrowing of the arteries to the brain can cause strokes. The heart muscle of oxygen and nutrients are transported by the blood through the major coronary arteries that branch into a network of smaller vessels are efficient. While the arteries to the brain that carry the same substance.
The heart serves to pump blood throughout the body. For that heart muscle needs oxygen and nutrients. Oxygen and nutrients are transported by the blood through specialized blood vessels called coronary arteries. Problems will arise if by any reason there is obstruction or abnormalities in the coronary arteries, so it is not enough blood supply, which means also a lack of supply of oxygen and nutrients to the heart to move normally. The situation above is known as coronary heart disease (CHD). If the blocked blood flow in arteries leading to the brain, a stroke will occur. With the body getting older and worse by a variety of risk factors such as the right had high blood pressure, smoking, cholesterol levels, abnormal blood vessels become obsolete, and the arteries become narrow, rigid, elastic and not clogged, just like rust on a water pipe corrosion . This is what causes CHD.
The causes of blocked or Blocked Coronary Artery Blood Flow in
Obstructed or blocked arteries can be caused by deposition of calcium, cholesterol and other fatty substances, known as plaque (plaque). This process starts when a young age and years of growing at a rate varies in each person, in accordance with the presence of `risk factors'. In that period these deposits gradually accumulate which eventually diameter in coronary artery blood which can still be passed more and more narrow, until the vessels can not pass the blood according to the needs of the heart muscle. Obstruction of blood flow as above referred to as fixed blockage.
According to Dean Ornish, there are other mechanisms in addition to clogging plaque that can also reduce blood flow to the heart. Among the most important is spasm (coronary artery spasm) and coagulation (clumping platelete-clotting). Various studies have found that factors known as risk factors can lead to plaque formation, spasticity, and clotting. All of the above mechanisms that cause coronary heart disease or heart attacks, are interdependent, that is, events that affect one another in a way that diverse.
Processes and Mechanisms Blockage
At first the normal artery, blood flow is not blocked, but by a variety of risk factors occurs:
- Plaque, this can cause the artery becomes blocked / partial obstruction. This plaque in a long time to grow steadily, resulting in total blockage.
- Spasm, this process causes the arteries to constrict and the flow of space and lived most severe occur when a total cessation of blood.
- Clot Platelete also called clumping ', in this case there is a process of clotting of the various substances in the blood. This process can continue in such a way as to impede blood flow totally.
- The combination of two or more events above. If the combination occurs, generally with a total blockage occurs rapidly (100%) in coronary arteries.
Signs or symptoms of existence of blockage (CHD) Do not let happen to you:
Because each person is different, the physical response to the development of CHD is also different. Not all people with CHD have a particular symptom or manifestation, but a common manifestation according to the American Health Assosioation (AHA) is as follows:
- No symptoms. Many of those who have clari. PFS did not feel there is something unpleasant or signs of a disease. In this medical condition called silent ischernia. They are diseased with diabetes is very susceptible to silent ischemia.
- Angina. Formally called angina pectoris. Angina generally indicated by chest pain while doing any physical movements or exercise.
- Unstable Angina (unstable angina). Chest pain suddenly felt when in a resting state is more severe or occur suddenly.
- Heart attack. When blood flow to the arteries pass completely blocked coronary heart attack or myocardial infarction (MI).
No comments:
Post a Comment