Coronary Heart Disease

CHD IS MAINLY PRECEDED BY ATHEROSCLEROSIS. THERE ARE MANY THEORIES ABOUT HOW THIS LESION IS FORMED, BY MOST SCIENTIST SUPPORT THE INJURY TO THE INTIMA THEORY. BLOOD VESSELS BECOME NARROWER WHEN EXPOSE TO STRESSOR LIKE DEPOSITION OF FAT AT THE ENDOTHELIUM AFTER THE WALL IS INJURED BY OTHER FACTORS LIKE HYPERTENSION. THE COLLECTION OF FAT SULTIMATELY OCCLUDE THE VESSELS. THIS COLLECTION OF FAT COVERED BY FIBROUS LAYER, WHICH ALSO CALLED PLAGUE, WHEN RUPTURE WILL FORM ATHEROMA. WHEN THIS HAPPENED TO THE CORONARY ARTERY AND THE ARTERY IS BLOCKED, THIS WILL CAUSE MYOCARDIAL INFARCTION, ALSO CALLED HEART ATTACK.

THE CLINICAL FEATURES OF CHD INCLUDE:
DYPHNEA
ANGINA PECTORIS
PALPITATION
TACHYCARDIA
SWEATING ETC

THAT IS MY SIMPLE EXPLANATION.

基本上就是这样。

冠状动脉性心脏病
冠心病是冠状动脉性心脏病的简称。是一种由于冠状动脉固定性（动脉粥样化硬化）或动力性（血管痉挛）狭窄或阻塞，发生冠状循环障碍，引起心肌氧供销需之间失衡而导致心肌缺血缺氧或坏死的一种心脏病，亦称缺血性心脏病。
冠心病的发病随年龄的增长而增高，程度也随年龄的增长而加重。有资料表明，自40岁开始，每增加10岁，冠心