Objective: To evaluate the prognostic value of Global Registry of Acute Coronary Events(GRACE) discharge score for long-term out-of-hospital death in acute coronary syndrome (ACS) after drug-eluting stents (DES) and with Dual-antiplatelet Therapy (DAPT). Methods: Our study was a prospective, observational, single center (Fuwai Hospital of China) study.A total of 6 431consecutive ACS patients underwent percutaneous coronary intervention(PCI)between January 2013 and December 2013 were involved.The primary endpoint was all-cause death and second endpoint was major adverse cardiovascular and cerebrovascular events (MACCE) as a composite of all-cause death, myocardial infarction, revascularization, stent thrombosis or stroke. Results: Finally, 5 867 ACS patients who were received DES with DAPT and had no in-hospital event included in this study, and 59 (1.01%) death and 608 (10.36%) MACCE were reported during 2-year follow-up after discharge.GRACE score was significantly higher among death patients than those survivalpatients (94± 28 vs 78± 24, P<0.001). According to risk stratification of GRACE discharge score, as compared to the low-risk group, death risk in high-risk group was 6.73 times (HR=6.73, 95%CI 3.53-12.84; P<0.001) higher, but could not distinguish between the moderate and low risk group (HR=1.61, 95%CI 0.88-2.95; P=0.124). The GRACE score showed predictive value in ACS patients after DESand with DAPT (area under the receiver operating characteristic curve (AUROC)=0.661; 95%CI 0.586-0.736, P<0.001). In subgroup analysis, GRACE score also showed predictive value both in unstable angina pectoris (UAP)(AUROC=0.660, 95%CI 0.576-0.744; P<0.001) and acute myocardial infarction(AMI)subgroup (AUROC=0.748, 95%CI 0.631-0.864; P=0.001). Conclusion: GRACE discharge score shows prognostic value for long-term out-of-hospital death in ACS patients undergoing PCI with DES and DAPT, and demonstrates good risk stratification of high and low-risk of death.
目的： 评估全球急性冠状动脉综合征(ACS)事件注册(GRACE)出院评分对ACS介入术后患者院外远期死亡事件的预测价值。 方法： 本研究为单中心、前瞻性、观察性研究，连续纳入自2013年1至12月于中国医学科学院阜外医院行经皮冠状动脉介入治疗(PCI)的ACS患者6 431例。死亡定义为全因死亡，主要不良心脑血管事件(MACCE)定义为全因死亡、心肌梗死、缺血驱动的血运重建、支架内血栓或脑卒中的复合事件。 结果： 共纳入5 867例符合入选标准，成功置入药物洗脱支架，并使用双联抗血小板治疗且无院内事件的ACS患者进行分析。2年随访中，死亡59例(1.01%)，MACCE事件608例(10.36%)。GRACE出院评分在死亡组[(94±28)分]明显高于存活组[(78±24)分，P<0.001]。GRACE出院评分能够较好地区分出高危组和低危组，高危组死亡风险是低危组的6.73倍[风险比(HR)＝6.73，95%CI 3.53～12.84; P<0.001]，但对中危组和低危组不能很好区分(HR＝1.61, 95%CI 0.88～2.95; P＝0.124)。GRACE出院评分对ACS介入术后并使用DAPT治疗的患者院外远期死亡具有预测价值[受试者工作曲线下面积(AUROC)＝0.661; 95%CI 0.586～0.736; P<0.001]。进一步亚组分析显示，GRACE出院评分不论在不稳定心绞痛(UAP)亚组(AUROC＝0.660，95%CI 0.576～0.744; P<0.001)还是急性心肌梗死(AMI)亚组(AUROC＝0.748，95%CI 0.631～0.864; P＝0.001)，均显示对死亡的预测价值。 结论： GRACE出院评分对ACS已行介入治疗患者并使用DAPT治疗的院外长期死亡仍具有预测价值，并能够较好地区分出死亡的高危组和低危组患者。.
Keywords: Acute coronary syndrome; Death; Percutaneous coronary intervention; Prognosis.