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所谓不稳定心绞痛,是指一组在其自然发展过程中容易发生急性心肌梗塞或猝死的心绞痛,过去也有人称之为急性心肌梗塞先兆,临床上有如下几种类型,即:(1)初发心绞痛;(2)自发心绞痛;(3)变异心绞痛;(4)渐增型心绞痛。不同亚组心绞痛发作时虽有相似之处,如均可在静息时发作,发作频度逐渐增多,持续时间较稳定型心绞痛为长,对硝酸酯类药物治疗反应差等,但它们的发病机理却不同,因而治疗也不一样。
The so-called unstable angina refers to a group of prone to acute myocardial infarction or sudden death in its natural history of angina, in the past was also called the harbinger of acute myocardial infarction, clinically the following types, namely: (1) Angina; (2) spontaneous angina; (3) variant angina; (4) progressive angina. Different subgroups of angina pectoris although similar, such as can be attacked at rest, the frequency of seizures gradually increased, the duration of stable angina for a long time, the response to nitrate drugs such as poor, but their incidence The mechanism is different, so the treatment is not the same.