Evidence map›Paper›PMID 35428179›Full record

ArticleBMC cardiovascular disorders2022

The correlation between lipoprotein(a) elevations and the risk of recurrent cardiovascular events in CAD patients with different LDL-C levels.

Lijun Zhu, Jiamin Zheng, Beibei Gao, Xiangbo Jin, Ying He, Liang Zhou, Jinyu Huang

Open access · goldAbstract read
In one paragraph

Article in BMC cardiovascular disorders, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed, 1 pooled it
5.9field-weighted citation impact, top 3% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

23 citing papers in PubMed, 1 synthesis or guideline pooled it, 27 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Lipoprotein(a): structural basis, bidirectional risk, and therapeutic frontiers.Journal of clinical biochemistry and nutrition · 2026
    Article
  5. Article
  6. Article
  7. Article
  8. Review
  9. Lipoprotein (a): Underrecognized Risk with a Promising Future.Reviews in cardiovascular medicine · 2024
    Review
  10. Observational
  11. Article
  12. Article
  13. Review
  14. Article
  15. Article
  16. Article
  17. Article
  18. Secondary Prevention and Extreme Cardiovascular Risk Evaluation (SEVERE-1), Focus on Prevalence and Associated Risk Factors: The Study Protocol.High blood pressure & cardiovascular prevention : the official journal of the Italian Society of Hypertension · 2023
    Article
  19. Article
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 3 institutions in 1 country.

Lijun ZhuZhejiang Chinese Medical University, Zhejiang, China.
Jiamin ZhengZhejiang Chinese Medical University, Zhejiang, China.
Beibei GaoDepartment of Cardiology, Hangzhou First People's Hospital Affiliated to Zhejiang University School of Medicine, Zhejiang, China.
Xiangbo JinZhejiang University School of Medicine, Zhejiang, China.
Ying HeZhejiang Chinese Medical University, Zhejiang, China.
Liang ZhouDepartment of Cardiology, Hangzhou First People's Hospital Affiliated to Zhejiang University School of Medicine, Zhejiang, China.
Jinyu HuangDepartment of Cardiology, Hangzhou First People's Hospital Affiliated to Zhejiang University School of Medicine, Zhejiang, China. zdsyhjy0902@zju.edu.cn.
Hangzhou First People's Hospital · CNZhejiang Chinese Medical University · CNZhejiang University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundLipoprotein(a) [Lp(a)] elevation is an important risk factor for coronary artery disease (CAD). However, the correlation between Lp(a) elevations and the risk of recurrent cardiovascular events in patients with established cardiovascular disease is controversial. Some studies have shown that Low-density lipoprotein cholesterol (LDL-C) levels may influence the association between Lp(a) and cardiovascular risk. Our study aims to explore the correlation between Lp(a) elevations and cardiovascular risk in patients with different LDL-C levels.

methodsWe included 516 patients who received coronary stents due to acute coronary syndrome (ACS) and followed them for three years. They were divided into low-Lp(a) group and high-Lp(a) group according to Lp(a) levels, and the incidence of major adverse cardiovascular events (MACE) and acute coronary events (ACE) was compared between the two groups. Then the patients were divided into three subgroups (S1:LDL-C ≥ 1.8 mmol/L; S2:1.4 ≤ LDL-C < 1.8 mmol/L; S3:LDL-C < 1.4 mmol/L). The correlation between Lp(a) elevations and cardiovascular risk in different subgroups was analysed by Cox proportional hazards models.

resultsThe incidence of MACE and ACE in the high-Lp(a) group was significantly higher than those in the low-Lp(a) group (P < 0.05). Lp(a) elevations had independent prognostic value from the statistical point of view (MACE: HR = 1.63, 95%CI = 1.12-2.38, P = 0.012; ACE: HR = 1.70, 95%CI = 1.03-2.81, P = 0.037). Subgroup analysis showed that Lp(a) elevations increased cardiovascular risk when LDL-C ≥ 1.4 mmol/L. However, this correlation no longer existed when LDL-C levels were very low (< 1.4 mmol/L) (MACE: HR = 0.49, 95%CI = 0.17-1.42, P = 0.186; ACE: HR = 0.68, 95%CI = 0.18-2.61, P = 0.570).

conclusionsLp(a) elevations are associated with recurrent cardiovascular events when LDL-C levels are high, but this association may change when LDL-C levels are extremely low. CAD patients with combination of LDL-C ≥ 1.4 mmol/L and Lp(a) elevations shall be considered as high-risk groups and require further medication for the reduction of their LDL-C levels.

Indexed as

Acute Coronary SyndromeCholesterol, LDLCoronary Artery DiseaseLipoprotein(a)HumansRisk FactorsCholesterol, LDLLipoprotein(a)Lipoprotein(a) elevationsLow-density lipoprotein cholesterolRecurrent cardiovascular events

Identifiers

PMID35428179
PMCPMC9013030
OpenAlexW4223900000

What Socratic holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.