CBS 2019
CBSMD教育中心
中 文

Acute Coronary Syndrom

Abstract

Recommended Article

A Novel Circulating MicroRNA for the Detection of Acute Myocarditis Prognostic Value of SYNTAX Score in Patients With Infarct-Related Cardiogenic Shock: Insights From the CULPRIT-SHOCK Trial The Prognostic Significance of Periprocedural Infarction in the Era of Potent Antithrombotic Therapy: The PRAGUE-18 Substudy Deficiency of GATA3-Positive Macrophages Improves Cardiac Function Following Myocardial Infarction or Pressure Overload Hypertrophy Stent Thrombosis Risk Over Time on the Basis of Clinical Presentation and Platelet Reactivity: Analysis From ADAPT-DES Red Cell Distribution Width in Patients with Diabetes and Myocardial Infarction: an analysis from the EXAMINE trial Phosphoproteomic Analysis of Neonatal Regenerative Myocardium Revealed Important Roles of CHK1 via Activating mTORC1/P70S6K Pathway Predicting Major Adverse Events in Patients With Acute Myocardial Infarction

Clinical Trial2021 Aug 1;152:34-42.

JOURNAL:Am J Cardiol. Article Link

Effect of Lipoprotein (a) Levels on Long-term Cardiovascular Outcomes in Patients with Myocardial Infarction with Nonobstructive Coronary Arteries

SD Gao, WJ Ma, MY Yu Keywords: Lp(a); MINOCA; STEMI; prognostic value; MACE

ABSTRACT

The association between elevated lipoprotein(a) [Lp(a)] and poor outcomes in coronary artery disease (CAD) has been addressed for decades. However, little is known about the prognostic value of Lp(a) in patients with myocardial infarction with nonobstructive coronary arteries (MINOCA). A total of 1179 patients with MINOCA were enrolled and divided into low, medium, and high Lp(a) groups based on the cut-off value of 10 and 30mg/dL. The primary endpoint was major adverse cardiovascular events (MACE), a composite of all-cause death, nonfatal MI, nonfatal stroke, revascularization, and hospitalization for unstable angina or heart failure. Kaplan-Meier and Cox regression analyses were performed. Accuracy was defined as area under the curve (AUC) using a receiver-operating characteristic analysis. Patients with higher Lp(a) levels had a significantly higher incidence of MACE (9.5%, 14.6%, 18.5%; p = 0.002) during the median follow-up of 41.7 months. The risk of MACE also increased with the rising Lp(a) levels even after multivariate adjustment [low Lp(a) group as reference, medium group: hazard ratio (HR) 1.55, 95% confidence interval (CI): 1.02-2.40, p = 0.047; high group: HR 2.07, 95% CI: 1.32-3.25, p = 0.001]. Further, clinically elevated Lp(a) defined as Lp(a) ≥30 mg/dL was closely associated with an increased risk of MACE in overall and in subgroups (all p <0.05). When adding Lp(a) (AUC 0.61) into the Thrombolysis in Myocardial Infarction (TIMI) score (AUC 0.68), the combined model (AUC 0.73) yielded a significant improvement in discrimination for MACE (ΔAUC 0.05, p = 0.032). In conclusion, elevated Lp(a) was strongly associated with a poor prognosis in patients with MINOCA. Adding Lp(a) to traditional risk score further improved risk prediction. Our data, for the first time, confirmed the Lp(a) as a residual risk factor for MINOCA.