一般认为冠状动脉血栓形成是由于膳食脂肪或胆固醇过多,引起血液胆固醇浓度升高。一部分胆固醇沉积于动脉管的内壁,动脉管变狭窄,因而不能供给心脏足够血液。患者此时可出现心绞痛;狭窄的动脉管及其内壁的沉积物可促使血液凝块的生成。当凝块堵塞了主要冠状动脉或其某一重要分支时,供给心脏的血液将停止,此即冠状动脉血栓形成。此时患者或死亡,或发生剧烈疼痛,恢复后心脏的部分组织将产生瘢痕。 Coronary thrombosis is generally considered due to dietary fat or cholesterol, causing elevated blood cholesterol levels. Part of the cholesterol deposition in the arterial wall, arterial narrow, and therefore can not supply enough blood to the heart. Patients may have angina pectoris at this time; deposits of the narrowed arterial duct and its inner wall may promote blood clot formation. When the clot blocks the main coronary artery or one of its major branches, the blood supply to the heart stops, that is, coronary thrombosis. At this point, the patient is either dead or experiencing severe pain and some tissues of the heart recover from scarring.