Laboratory Medicine ›› 2023, Vol. 38 ›› Issue (6): 584-589.DOI: 10.3969/j.issn.1673-8640.2023.06.015

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Role of blood lipid levels in assessment of coronary artery stenosis and its treatment in patients with coronary heart disease

WU Youhong1, SONG Yunxiao2, ZHU Yong1(), GE Wen2, BIAN Xiaobo2, YUAN Wenhua2, ZHAO Zhiyun2   

  1. 1. Department of Radiology,Shanghai Xuhui Central Hospital,Shanghai 200031,China
    2. Department of Clinical Laboratory,Shanghai Xuhui Central Hospital,Shanghai 200031,China
  • Received:2022-03-28 Revised:2023-04-07 Online:2023-06-30 Published:2023-08-22

Abstract:

Objective To investigate the value of blood lipid-related indexes in assessing the degree of coronary artery stenosis and treatment in patients with coronary heart disease. Methods Totally,470 patients diagnosed with coronary heart disease in Shanghai Xuhui Central Hospital were collected from January 2018 to December 2022. According to the degree of coronary artery stenosis,the patients were classified into grade Ⅰ group(80 cases),grade Ⅱ group(137 cases),grade Ⅲ group(204 cases) and grade Ⅳ group(49 cases). The patients were classified into treatment groups(260 cases) and non-treatment groups(210 cases) according to whether they needed surgical or interventional treatment. The levels of low-density lipoprotein cholesterol(LDL-C),triglyceride(TG),high-density lipoprotein cholesterol(HDL-C),apolipoprotein(apo) A1,apo B,total cholesterol(TC) and lipoprotein(a) [Lp(a)] were determined. Logistic regression analysis was used to evaluate the risk factors for coronary artery stenosis or treatment in patients with coronary heart disease. LASSO regression analysis was used to establish a model for judging the treatment of coronary heart disease patients based on blood lipid indicators. Receiver operating characteristic(ROC) curve was used to evaluate the model's efficacy in determining the need for treatment in patients with coronary heart disease. Results The levels of TC,TG,LDL-C,apo A1 and apo B in grade Ⅰ group,grade Ⅱ group,grade Ⅲ group and grade Ⅳ group were increased successively(P<0.05),and serum HDL-C levels were decreased successively(P<0.05). Lp(a) levels in grade Ⅲ and Ⅳ group were higher than those in grade Ⅰ and Ⅱ groups(P<0.001),and that in grade Ⅱ group was higher than that in grade Ⅰ group(P<0.001). Logistic regression analysis showed increased TG and LDL-C levels were risk factors for grade Ⅱ and Ⅲ stenosis(P<0.05). Decreased HDL-C level was a risk factor for grade Ⅱ and Ⅲ stenosis(P<0.05),and increased TC level was a risk factor for grade Ⅲ and Ⅳ stenosis(P<0.05). The serum levels of TC,TG,LDL-C,apo A1,apo B and Lp(a) in treatment group were higher than those in non-treatment group(P<0.001),and HDL-C levels were lower in non-treatment group(P<0.001). Logistic regression analysis showed that increased TC,TG,LDL-C,apo A1,apo B and Lp(a) levels and decreased HDL-C levels were risk factors for coronary heart disease needing treatment(P<0.01). LASSO regression analysis showed that the area under curve of the combined determination model based on TC,TG and Lp(a) for predicting the need for treatment in patients with coronary heart disease was 0.939. Conclusions Blood lipid-related indexes can be used to evaluate the degree of coronary artery stenosis and can be used as potential indicators to guide clinical intervention treatment.

Key words: Blood lipid, Coronary artery stenosis, Coronary heart disease, Treatment

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