冠状动脉硬化性心脏病 冠状动脉是供应心肌营养的血管。冠状动脉粥样硬化发展到一定程度,血管壁的脂肪斑块沉积较多时,就会引起动脉管壁增厚、变硬,管腔狭窄甚至闭塞。当阻碍血循环时,若再受到不良刺激,就可使冠状动脉发生痉挛,导致心肌供血不足。轻者仅感到心前区或上腹部微微不适,比较典型的是在心前区发生的闷痛,并可向左臂左肩放散。遇到这种情况,只要安静平卧,使用扩张血管的药物(如舌下含硝酸甘油等),很快就会恢复。如再进一步发展,冠状动脉的管腔更为狭窄,血流缓慢,就可能在血管内有 Coronary Artery Disease Coronary arteries are vessels that supply cardiac nutrition. Coronary atherosclerosis developed to a certain extent, more vascular plaque deposition, it will cause arterial wall thickening, hardening, lumen stenosis or occlusion. When obstructing the blood circulation, if again by poor stimulation, can make the coronary artery spasm, resulting in myocardial insufficiency. Light only feel slightly precordial or upper abdominal discomfort, typically occurs in the precordial boring pain, and can be left arm to the left shoulder. In such cases, as long as quiet and lying, the use of dilated blood vessels (such as nitroglycerin under the tongue, etc.), will soon resume. As further development of the coronary artery more narrow lumen, the blood flow is slow, it may be in the blood vessels