非高密度脂蛋白胆固醇与维持性血液透析患者并发心血管疾病的关系研究

Relationship between non-high-density lipoprotein cholesterol and cardiovascular disease in maintenance hemodialysis patients

  • 摘要:
    目的 探讨非高密度脂蛋白胆固醇(non-HDL-C)与维持性血液透析(MHD)患者并发心血管疾病的关系。
    方法 选取124例MHD患者作为研究对象, 根据是否合并心血管疾病分为心血管疾病组(53例)和无心血管疾病组(71例),比较2组患者的临床资料; 另根据冠状动脉钙化评分(CACS)将患者分为重度钙化组(CACS≥400分, 40例)和非重度钙化组(CACS < 400分, 84例),比较2组患者的临床资料。采用多因素Logistic回归分析法探讨MHD患者并发心血管疾病的独立危险因素,并通过受试者工作特征(ROC)曲线评估相关指标对MHD并发心血管疾病的预测效能。
    结果 心血管疾病组血清总胆固醇、低密度脂蛋白胆固醇(LDL-C)、non-HDL-C水平高于无心血管疾病组,高密度脂蛋白胆固醇(HDL-C)水平低于无心血管疾病组,差异均有统计学意义(P < 0.05); 重度钙化组血清总胆固醇、LDL-C、non-HDL-C水平高于非重度钙化组, HDL-C水平低于非重度钙化组,差异均有统计学意义(P < 0.05)。多因素Logistic回归分析结果显示,高水平LDL-C、高水平non-HDL-C均为MHD患者并发心血管疾病的独立危险因素(P < 0.05)。ROC曲线分析结果显示, non-HDL-C、LDL-C预测MHD患者并发心血管疾病的曲线下面积分别为0.858、0.723, 且non-HDL-C的特异度和约登指数均高于LDL-C。
    结论 non-HDL-C水平升高是MHD患者并发心血管疾病的独立危险因素,且对MHD患者是否并发心血管疾病具有较高的预测效能。

     

    Abstract:
    Objective To investigate the relationship between non-high-density lipoprotein cholesterol (non-HDL-C) and cardiovascular disease (CVD) in maintenance hemodialysis (MHD) patients.
    Methods A total of 124 MHD patients were enrolled and divided into CVD group (53 patients) and non-CVD group (71 patients) based on the presence or absence of CVD. Clinical data between the two groups were compared. Additionally, patients were divided into severe calcification group coronary artery calcification score (CACS) ≥400, 40 patients and non-severe calcification group (CACS < 400, 84 patients) based on CACS, and clinical data between these two groups were also compared. Multivariate Logistic regression analysis was used to explore the independent risk factors for CVD in MHD patients, and the predictive performance of related indicators for CVD in MHD patients was assessed using receiver operating characteristic (ROC) curves.
    Results The levels of serum total cholesterol, low-density lipoprotein cholesterol (LDL-C), and non-HDL-C were higher, while the level of high-density lipoprotein cholesterol (HDL-C) was lower in the CVD group compared with the non-CVD group (P < 0.05). The levels of serum total cholesterol, LDL-C, and non-HDL-C were higher, and the level of HDL-C was lower in the severe calcification group compared with the non-severe calcification group (P < 0.05). Multivariate Logistic regression analysis showed that high levels of LDL-C and non-HDL-C were both independent risk factors for CVD in MHD patients (P < 0.05). ROC curve analysis showed that the areas under the curve for predicting CVD in MHD patients were 0.858 and 0.723 for non-HDL-C and LDL-C, respectively, and non-HDL-C had higher specificity and Youden index than LDL-C.
    Conclusion Elevated non-HDL-C level is an independent risk factor and has high predictive performance for CVD in MHD patients.

     

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