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过去30年中,对不稳定型心绞痛(USA)的关注日益增长。我们对其临床表现、病理生理、预后和治疗的认识尚不完善,但可拟一治疗指南。 一、定义 USA至少可包括三个临床亚组:①新近发生的(近日个月内开始的)进行性心绞痛,即虽在进行内科治疗,但疼痛的程度、持续时间或发作频度仍在增加;②休息时心绞痛,其严重程度足以使患者住进重点监护病房,以排除急性心肌梗塞;③急性心肌梗塞恢复后(梗塞后1或2周～3个月)的持续疼痛。
Over the past 30 years, attention has been given to unstable angina (USA). Our understanding of its clinical manifestations, pathophysiology, prognosis and treatment is not yet complete, but guidelines for treatment may be proposed. First, the definition of USA can include at least three clinical subgroups: (1) recent occurrence of angina pectoris (beginning in recent months), that is, although the medical treatment, but the extent of pain, duration or frequency of seizures is still increasing ; ② rest angina pectoris, its severity enough to make patients admitted to the intensive care unit to exclude acute myocardial infarction; ③ acute myocardial infarction recovery (1 or 2 weeks after infarction ~ 3 months) sustained pain.