Although hypertension itself is not fatal, but long-term uncontrolled hypertension is easy to cause fatal myocardial infarction. Hypertension increases the risk of myocardial infarction mainly through the following aspects:
1) Hypertension promotes coronary atherosclerosis, narrowing the lumen, resulting in the reduction of blood supply to the myocardium;
2) Long term hypertension leads to left ventricular hypertrophy, and the structure of capillaries in myocardium will be changed, which can not provide enough blood for myocardium;
3) Hypertension is very easy to cause coronary artery spasmodic contraction, so that the coronary artery is closed, and the blood supply to the myocardium is interrupted;
4) Sudden increase of blood pressure will cause the original atherosclerotic plaque to break off, form thrombus and block the coronary artery.
Studies have shown that effective control of hypertension can reduce the mortality of myocardial infarction by 27%. Therefore, the control of hypertension is of great significance to the prevention of myocardial infarction.
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