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引言心绞痛是由于暂时性心肌缺血引起的以胸痛为主要特征的临床综合征,是冠状动脉粥样硬化性心脏病(冠心病)的最常见表现。通常见于冠状动脉至少一支主要分支管腔直径狭窄在50%以上的患者,当体力或精神应激时,冠状动脉血流不能满足心肌代谢的需要,导致心肌缺血,而引起心绞痛发作,休息或含服硝酸甘油可缓解。慢性稳定性心绞痛是指心绞痛发作的程度、频度、性质及诱发因素在数周内无显著变化的患者。心绞痛也可发生
Introduction Angina is a clinical syndrome characterized by chest pain as a result of transient myocardial ischemia and is the most common manifestation of coronary atherosclerotic heart disease (CHD). Often seen in at least one major branch of coronary artery stenosis in more than 50% of patients, when physical or mental stress, coronary blood flow can not meet the needs of myocardial metabolism, leading to myocardial ischemia, causing angina attacks, rest Or containing nitroglycerin can be alleviated. Chronic stable angina refers to the extent, frequency, nature and causes of angina pectoris in patients with no significant changes in a few weeks. Angina can also occur