CBS 2019
CBSMD教育中心
中 文

动脉粥样硬化性心血管疾病预防

Abstract

Recommended Article

Regional Heterogeneity in the Coronary Vascular Response in Women With Chest Pain and Nonobstructive Coronary Artery Disease Sequence variations in PCSK9, low LDL, and protection against coronary heart disease Initial Invasive or Conservative Strategy for Stable Coronary Disease Effect of Evolocumab on Complex Coronary Disease Requiring Revascularization Burden of Cardiovascular Diseases in China, 1990-2016: Findings From the 2016 Global Burden of Disease Study Primary Prevention of Sudden Cardiac Death The Burden of Cardiovascular Diseases Among US States, 1990-2016 Cardiovascular Considerations in Caring for Pregnant Patients: A Scientific Statement From the American Heart Association

Original Research2022 Mar, 79 (8) 757–768

JOURNAL:J Am Coll Cardiol. Article Link

Independent Association of Lipoprotein(a) and Coronary Artery Calcification With Atherosclerotic Cardiovascular Risk

A Mehta, N Vasquez, CR Ayers et al. Keywords: Lp(a); coronary artery calcium score; cumulative ASCVD incidence;

ABSTRACT

BACKGROUND - Elevated lipoprotein(a) [Lp(a)] and coronary artery calcium (CAC) score are individually associated with increased atherosclerotic cardiovascular disease (ASCVD) risk but have not been studied in combination.

 

OBJECTIVES - This study sought to investigate the independent and joint association of Lp(a) and CAC with ASCVD risk.

 

METHODS - Plasma Lp(a) and CAC were measured at enrollment among asymptomatic participants of the MESA (Multi-Ethnic Study of Atherosclerosis) (n = 4,512) and DHS (Dallas Heart Study) (n = 2,078) cohorts. Elevated Lp(a) was defined as the highest race-specific quintile, and 3 CAC score categories were studied (0, 1-99, and 100). Associations of Lp(a) and CAC with ASCVD risk were evaluated using risk factoradjusted Cox regression models.

 

RESULTS - Among MESA participants (61.9 years of age, 52.5% women, 36.8% White, 29.3% Black, 22.2% Hispanic, and 11.7% Chinese), 476 incident ASCVD events were observed during 13.2 years of follow-up. Elevated Lp(a) and CAC score (1-99 and 100) were independently associated with ASCVD risk (HR: 1.29; 95% CI: 1.04-1.61; HR: 1.68; 95% CI: 1.30-2.16; and HR: 2.66; 95% CI: 2.07-3.43, respectively), and Lp(a)-by-CAC interaction was not noted. Compared with participants with nonelevated Lp(a) and CAC = 0, those with elevated Lp(a) and CAC 100 were at the highest risk (HR: 4.71; 95% CI: 3.01-7.40), and those with elevated Lp(a) and CAC = 0 were at a similar risk (HR: 1.31; 95% CI: 0.73-2.35). Similar findings were observed when guideline-recommended Lp(a) and CAC thresholds were considered, and findings were replicated in the DHS.

 

CONCLUSIONS - Lp(a) and CAC are independently associated with ASCVD risk and may be useful concurrently for guiding primary prevention therapy decisions.