Laboratory Medicine ›› 2022, Vol. 37 ›› Issue (12): 1141-1145.DOI: 10.3969/j.issn.1673-8640.2022.12.008

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Predictive values of Lp(a) and apoB/apoA-1 ratio for the occurrence of MACE in patients with AMI after interventional therapy

ZHENG Jiahua, YAO Yanying(), GAO Qingling, DONG Ye   

  1. Department of General Medicine,Chengde Central Hospital,Chengde 067000,Hebei,China
  • Received:2021-04-09 Revised:2022-03-08 Online:2022-12-30 Published:2023-02-02
  • Contact: YAO Yanying,E-mail:YAOYYDOC@163.com。

Abstract:

Objective To investigate the predictive values of lipoprotein(a) [Lp(a)] and apolipoprotein B(apo B)/apolipoprotein A-1(apo A-1) ratio for the occurrence of major adverse cardiovascular event(MACE) in patients with acute myocardial infarction(AMI) after interventional therapy. Methods A total of 200 patients with AMI undergoing interventional therapy were enrolled. According to the occurrence of MACE for 6 months after interventional therapy,they were classified into MACE group(47 cases) and non-MACE group(153 cases). Baseline data and clinical laboratory results were collected,and Lp(a),apo B and apo A-1 were determined. Pearson correlation analysis was used to analyze the correlation between Lp(a),apo B/apo A-1 ratio and amino-terminal pro-B-type natriuretic peptide(NT-proBNP),left ventricular ejection fraction(LVEF) and low-density lipoprotein cholesterol(LDL-C). Cox regression analysis was used to analyze the influencing factors of MACE in AMI patients after interventional therapy. Receiver operating characteristic(ROC) curve analysis was used to evaluate the predictive value of Lp(a) and apo B/apo A-1 ratio combined determination for the occurrence of MACE after interventional therapy. Results Lp(a) and apo B/apo A-1 ratio in MACE group were higher than those in non-MACE group(P<0.05). The results of Pearson correlation analysis showed that Lp(a) and apo B/apo A-1 ratio were positively correlated with NT-proBNP and LDL-C(P<0.05),and they were negatively correlated with LVEF(P<0.05). Cox regression analysis showed that Lp(a) and apo B/apo A-1 ratio were the influencing factors of MACE [hazard ratios(HR) were 2.347 and 2.476,95% confidence intervals(CI) were 1.459-3.774 and 1.561-3.928,respectively]. The results of ROC curve analysis showed that the areas under curves(AUC) of Lp(a),apo B/apo A-1 ratio single determinations and combined determination for the occurrence of MACE in AMI patients after interventional therapy were 0.798,0.821 and 0.898,respectively. Conclusions The high levels of Lp(a) and apo B/apo A-1 ratio are independent risk factors for MACE in AMI patients after interventional therapy. The combined determination has a high predictive value for the prognosis of interventional therapy in AMI patients.

Key words: Lipoprotein(a), Apolipoprotein B/apolipoprotein A-1 ratio, Acute myocardial infarction, Major adverse cardiovascular event

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