Format

Send to

Choose Destination
Heart Lung Circ. 2019 Jul;28(7):1009-1017. doi: 10.1016/j.hlc.2018.05.190. Epub 2018 Jun 8.

Plasma Lipoprotein(a) Concentration Is Associated With the Coronary Severity but Not With Events in Stable Coronary Artery Disease Patients: A Chinese Cohort Study.

Author information

1
Division of Dyslipidemia, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Xicheng District, Beijing, China.
2
Peking University Shenzhen Hospital, Lianhua Road, Futian District, Shen Zhen, China.
3
Division of Dyslipidemia, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Xicheng District, Beijing, China. Electronic address: lijianjun938@126.com.

Abstract

BACKGROUND:

Although lipoprotein(a) (Lp(a)) has been regarded as an independent risk factor for atherosclerotic cardiovascular disease (ASCVD), its predictive role in outcomes in stable coronary artery disease (CAD) has been undetermined. The aim of the present study was to investigate the relations of Lp(a) to the coronary severity and events in Chinese patients with angiography-proven stable CAD.

METHODS:

A total of 3,278 patients with stable CAD were consecutively enrolled and the coronary severity was evaluated by the Gensini Score (GS) system. Patients were divided into two groups according to the median of GS: high GS group (n=1,585) and low GS group (n=1,693). The associations of continuous Lp(a), Lp(a) ≥300mg/L, and tertiles of Lp(a) with GS and events were respectively evaluated.

RESULTS:

Patients in the high GS group had significantly higher concentrations of Lp(a). In addition, the multivariate Cox regression analysis indicated that elevated Lp(a) (odds ratio: 1.164, 95% confidence interval: 1.005-1.349), Lp(a) ≥300mg/L (odds ratio: 1.200, 95% confidence interval: 1.028-1.401), and the highest tertile of Lp(a) (odds ratio: 1.205, 95% confidence interval: 1.010-1.438) were statistically associated with GS after adjusted for potential confounders. However, although 215 (6.56%) events were established during a median of follow-up over 10,170 patient-years, no relationship between Lp(a) and events was found.

CONCLUSIONS:

In this Chinese cohort study on stable CAD with moderate sample size and follow-up duration, data showed that Lp(a) was significantly associated with the coronary severity while not with cardiovascular events, similar to several studies, suggesting that further study is needed regarding the role of Lp(a) in ASCVD.

KEYWORDS:

Coronary artery disease; Events; Gensini Score; Lipoprotein(a)

PMID:
31178022
DOI:
10.1016/j.hlc.2018.05.190

Supplemental Content

Full text links

Icon for Elsevier Science
Loading ...
Support Center