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multicenter studies on serum uric acid and long prognosis of AMI in China. Objective To investigate the relationship between
serum uric acid and long-term prognosis in AMI patients. Methods One thousand and ninety-eight AMI patients from 9
hospitals(Chengdu First People's Hospital,Chengdu Second People's Hospital,the Third People's Hospital of Chengdu,the
First Affiliated Hospital of Chengdu Medical College,Dujiangyan Medical Center,Pidu District People's Hospital,Chengdu,
Shuangliu District First People's Hospital,Jintang First People's Hospital,the People's Hospital of Pengzhou) in Chengdu
during September 2016 to July 2019 were consecutively reSScruited. Baseline data were collected via the electronic medical record
system of each hospital by trained professionals,including:(1) demographic data:age,gender,prevalence of smoking;
(2) clinical complications and related information:hypertension,diabetes,blood pressure,heart rate,Killip class,AMI
type(NSTEMI or STEMI),prevalence of percutaneous coronary intervention(PCI);(3) laboratory parameters:serum
SScreatinine(Scr),uric acid(UA),triglyceride(TG),total cholesterol(TC),low-density lipoprotein cholesterol
(LDL-C),high-density lipoprotein cholesterol(HDL-C),estimated glomerular filtration rate(eGFR);(4) post-
discharge medication:aspirin,clopidogrel/tigrelol,statins,Beta-blockers,ACEI/ARB,diuretics. Baseline data were
compared between patients with and without major adverse cardiovascular and cerebrovascular events(MACCE) during post-
discharge follow-up. Then,prognosis was compared aSScross UA tertile subgroups〔A:UA<420 μmol/L;B:420 ≤ UA<480
μmol/L;C:UA ≥ 480 μmol/L〕 stratified by the diagnostic SScriteria for hyperuricemia in Guideline for the Diagnosis and
Management of Hyperuricemia and Gout in China(2019). Results The median follow-up time for all participants was 14.5
(9.2,20.7) months. Of all cases,173 were found with MACCE,and 366 with hyperuricemia. Compared with those without
MACCE,patients with MACCE had greater average age,Scr and UA,and heart rate,and higher female ratio,higher
prevalence of hypertension,diabetes,use of diuretics,and Killip class ≥ 3,but lower prevalence of PCI treatment(P<0.05).
Subgroup A had much lower incidence of MACCE,all-cause death and cardiac death than subgroup B or C(P<0.01). Kaplan-
Meier survival analysis indicated that the cumulative incidence of MACCE,all-cause death and cardiac death either in subgroup
B or C was higher than that in subgroup A(P<0.01). Cox regression analysis showed that Killip class ≥ 3〔HR=1.812,95%CI
(1.215,2.700)〕,older age〔HR=1.045,95%CI(1.031,1.059)〕 and higher UA level〔( ≥ 420 μmol/L but<480
μmol/L:HR=1.614,95%CI(1.062,2.455);≥ 480 μmol/L:HR=1.949,95%CI(1.327,2.862)〕 were independent
risk factors for long-term MACCE events in patients with AMI(P<0.05). Serum UA had an AUC(95%CI) of 0.578(0.548,0.607)
with 0.387 sensitivity,and 0.779 specificity in predicting long-term incidence of MACCE,an AUC(95%CI) of 0.645(0.616,
0.674) with 0.598 sensitivity,and 0.670 specificity in predicting long-term incidence of all-cause death,and an AUC(95%
CI) of 0.653(0.624,0.681) with 0.534 sensitivity,and 0.761 specificity in predicting long-term incidence of cardiac death.
Conclusion Elevated serum UA was associated with higher risk of long-term adverse events in AMI patients. Serum UA may be
used as a predictor for long-term MACCE events in such patients.
【Key words】 Myocardial infarction;Cardiovascular disease;Coronary disease;Uric acid;Prognosis;
Forecasting;Survival analysis;Sensitivity;Specificity
急性心肌梗死(AMI)是冠心病中比较严重的一种 评估及后续个体化治疗提供理论支持。
类型,也是心血管疾病的主要死亡原因。尽管近年来 1 资料与方法
AMI 的相关诊疗措施及流程不断完善,但其总体死亡 1.1 一般资料 本研究为一项多中心、回顾性研究。
率仍呈上升趋势 [1] 。对 AMI 患者进行高效合理地评估 连续纳入 2016 年 9 月至 2019 年 7 月于成都市 9 家医院
及风险分层有助于指导其后续治疗从而进一步改善预 (成都市第一人民医院、成都市第二人民医院、成都市
后 [2-3] 。尿酸(UA)是嘌呤代谢终产物,可损伤血管 第三人民医院、成都医学院第一附属医院、都江堰市医
内皮细胞、引起低密度脂蛋白胆固醇(LDL-C)氧化修 疗中心、成都市郫都区人民医院、成都市双流区第一人
饰从而加重动脉粥样硬化、促进炎性反应导致血小板聚 民医院、金堂县第一人民医院、彭州市人民医院)就诊
集,是冠心病进展的重要危险因素 [4-5] 。已有研究表明, 的 1 098 例 AMI 患者,平均年龄(65.3±14.4)岁;女
UA 与 AMI 患者的早期院内死亡及远期预后相关 [6-9] , 290 例,男 808 例;急性 ST 段抬高型心肌梗死(STEMI)
但相较于年龄等传统危险因素而言,UA 与 AMI 远期预 698 例,急性非 ST 段抬高型心肌梗死(NSTEMI)400 例。
后的关系仍存在争议 [10-11] 。且目前关于国人不同 UA 诊断标准参照相关指南 [12-13] 。排除标准:(1)相关
水平与 AMI 患者远期预后关系的大规模、多中心研究 信息缺失;(2)院内死亡;(3)严重精神疾病;(4)
较少,本研究旨在分析成都地区 AMI 患者的 UA 水平与 合并严重的慢性肺疾病、心肌病、肝功能异常、晚期肿
其远期预后的关系,从而为 AMI 患者远期预后的风险 瘤患者以及未处理的严重瓣膜疾病等。