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冠心病患者在接受冠脉介入治疗(经皮冠脉球囊成形术或支架置入术)后,冠状动脉管腔狭窄或闭塞得以解除,缺血部位心肌供血大大改善,患者心绞痛发作可明显减轻或消失,部分患者可恢复到发病前的正常生活、工作、社交状态。但冠脉介入治疗是依靠机械原理使狭窄的冠状动脉管腔扩大,并非针对冠心病病因进行治疗,而且只能对部分血管进行干预。因此,患者经冠脉介入治疗后,通常还需要进行相应的辅助治疗,以保持冠脉管腔通畅,降低再狭窄发生率。这些治疗即所谓冠心病的二级预防措施。
Coronary heart disease in patients undergoing coronary intervention (percutaneous coronary angioplasty or stenting), coronary stenosis or occlusion of the lumen was relieved, greatly improved myocardial ischemia in myocardial blood supply, patients with angina pectoris can be significantly reduced Or disappear, some patients can return to the normal life before onset, work, social status. However, coronary intervention is to rely on mechanical principles to narrow the lumen of the coronary artery expansion, not for the treatment of coronary heart disease, but only part of the vascular intervention. Therefore, patients after coronary intervention, usually also need to be the appropriate adjuvant therapy to maintain coronary artery patency, reduce the incidence of restenosis. These treatments are called secondary prevention of coronary heart disease.