Saturday, November 3, 2007
Atherosclerosis and the relationship between hypertension
Atherosclerosis refers to a non-arterial inflammation of proliferative lesions, resulting in artery wall thickening, stiffness and loss of flexibility and caused lumen stenosis. Atherosclerosis is the occurrence of a variety of factors arising from the different segments, including such factors as age, gender, hyperlipidemia, diabetes, hypertension and their close relationship. Hypertension state, as the blood vessel wall on the side of the pressure increase, they are causing endometrial vascular injury, vascular prompted plasma lipid infiltration endometrial cells, forming atherosclerosis. Atherosclerosis of the main pathological changes in the circulatory system involving large elastic arteries (such as the aorta) and the elastic medium muscular arteries (such as coronary and cerebral arteries). The wall elastic artery blood pressure with the role of buffer, which is a reduced pulse pressure role. Since aortic atherosclerosis leading to the flexible wall decreased systolic ejection when the heart, aorta expansion and retention of blood from the heart by weakening the role, higher systolic blood pressure and pulse pressure caused poor increased. When aortic atherosclerosis, due to wall replaced by fibrous tissue in the artery pressure increased, likely to cause lesions wall outward, aneurysm formation and even break through the blood into the aorta wall endometrial middle, forming aortic dissection. Therefore, atherosclerosis and hypertension in both casual and atherosclerosis patients 60% 1 70% have hypertension, high blood pressure patients suffering from atherosclerosis is the normal four times.
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