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心绞痛是心肌暂时缺血缺氧而引起的,以发作性胸骨后疼痛和压迫感为主要表现的临床综合征。若能在疼痛的当时进行心电图或其他心肌灌注检测方法的检查常能发现心肌缺血的客观依据。一般将心绞痛分为三型:①稳定性心绞痛(劳力性);②不稳定性心绞痛,包括最近6周内新发生的心绞痛,原有心绞痛发作次数增加,疼痛强度加剧,持续时间延长等加剧现象和静息卧位或夜间发生的心绞痛;③变异性心绞痛,指心绞痛时出现 ST 段一过性抬高而与耗氧量增加无关。
Angina pectoris is a temporary myocardial ischemia and hypoxia caused by the onset of post-sternal pain and pressure as the main clinical manifestations of the syndrome. If the pain can be carried out at the time of electrocardiogram or other myocardial perfusion test methods to detect myocardial ischemia can often find an objective basis. General angina pectoris is divided into three types: ① stable angina (labor); ② unstable angina, including the recent 6 weeks of angina pectoris, the original increase in the number of angina attacks, increased pain intensity, prolonged duration of aggravating phenomenon And resting supine or angina occurred at night; ③ variant angina, refers to angina pectoris ST segment transient elevation and has nothing to do with increased oxygen consumption.