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Lipoprotein(a) as a marker for predicting coronary collateral circulation in patients with acute myocardial

Xiang-Dong You1,2, Jing-Lu Jin1, Hua Zhang2

  • 1Division of Dyslipidemia, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100037, PR China.

Personalized Medicine
|November 6, 2019
PubMed

Insights

Elevated lipoprotein(a) [Lp(a)] levels may predict poor coronary collateral circulation (CCC) in acute myocardial infarction (AMI) patients. This finding suggests Lp(a) could serve as a valuable biomarker for assessing CCC post-AMI.

Area of Science:

  • Cardiology
  • Biomarkers
  • Acute Myocardial Infarction

Background:

  • Coronary collateral circulation (CCC) is crucial for limiting infarct size in acute myocardial infarction (AMI).
  • Predictive markers for assessing CCC in AMI patients are essential for risk stratification and treatment planning.

Purpose of the Study:

  • To investigate the predictive value of lipoprotein(a) [Lp(a)] levels for coronary collateral circulation (CCC) in patients diagnosed with acute myocardial infarction (AMI).

Main Methods:

  • A cohort of 409 consecutive patients with AMI were analyzed.
  • Patients were categorized into "bad" (n=277) and "good" (n=132) CCC groups based on Rentrop grades from coronary angiography.

Main Results:

  • Patients with poor CCC exhibited significantly higher Lp(a) levels (median 219.1 mg/l) compared to those with good CCC (median 122.0 mg/l).
  • The receiver-operating characteristic curve analysis indicated Lp(a) had a predictive value for bad CCC with an area under the curve of 0.647 (95% CI: 0.592-0.702) at a cut-off of 199.0 mg/l.

Conclusions:

  • Lipoprotein(a) may serve as a novel and useful biomarker for evaluating coronary collateral circulation in the context of acute myocardial infarction.
  • These findings highlight the potential role of Lp(a) in understanding and managing cardiovascular outcomes after AMI.

Keywords:
Lipoprotein(a)acute myocardial infarctioncollateral circulationcoronary arterymarkerprediction

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