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肾脏病与透析肾移植杂志 ›› 2012, Vol. 21 ›› Issue (5): 439-443.

• 论文 • 上一篇    下一篇

维持性血液透析患者血清氨基末端脑钠肽水平与心血管疾病及营养不良的关系

  

  • 出版日期:2012-10-24 发布日期:2012-10-24

Relationship of serum amino-terminal pro-B-natriuretic peptide with cardiovascular disease and malnutrition in patients with maintenance hemodialysis

  • Online:2012-10-24 Published:2012-10-24

摘要:

摘 要 目的 研究维持性血液透析(MHD)患者血清氨基末端脑钠肽(NT-proBNP)水平及其与心血管疾病和营养不良的关系。方法 选取MHD治疗3个月以上的稳定患者,采用电化学发光法检测受试者血清NT-proBNP。用Spearman相关和线性回归分析NT-proBNP与其它指标之间的相关性。用受试者工作特征(ROC)曲线比较NT-proBNP、肌钙蛋白T(cTnT)及高敏C反应蛋白(hsCRP)与左心室肥大的相关性。结果 130例MHD患者血清NT-proBNP水平皆显著高于正常参考值。合并心血管疾病(CVD)的患者血清NT-proBNP水平显著高于非CVD患者(4649[2920-14069]pg/ml vs 3006[1457-7478]pg/ml,P=0.002)。Spearman相关分析显示血清NT-proBNP与年龄(ρ=0.195,P=0.026)、收缩压(ρ=0.306,P=0.001)、hsCRP(ρ=0.228,P=0.009)、cTnT(ρ=0.448,P<0.001)、颈动脉内膜中层厚度(ρ=0.244,P=0.021)及左心室质量指数(ρ=0.537,P<0.001)呈正相关,与体重指数(ρ=-0.153,P=0.031)、血清前白蛋白(ρ=-0.304,P<0.001)、甘油三酯(ρ=-0.246,P=0.014)、总胆固醇(ρ=-0.265,P=0.008)、低密度脂蛋白胆固醇(ρ=-0.254,P=0.012)及左心室射血分数(ρ=-0.194,P=0.040)呈负相关。线性回归分析显示cTnT(β=0.463,P=0.001)、左心室质量指数(β=0.324,P=0.003)及收缩压(β=0.208,P=0.008)与血清NT-proBNP水平独立相关。ROC曲线分析显示NT-proBNP水平与左心室肥大的相关性高于cTnT及hsCRP。结论 MHD患者血清NT-proBNP水平显著升高,NT-proBNP水平与患者伴发CVD及营养不良相关。

关键词: 血液透析, 氨基末端脑钠肽, 心血管疾病, 左心室肥大

Abstract:

ABSTRACT     Objective To investigate the serum level of amino-terminal pro-B-natriuretic peptide (NT-proBNP) and its relationship with cardiovascular disease (CVD) and malnutrition in maintenance hemodialysis(MHD) patients. Methods Blood samples were obtained from one hundred thirty MHD patients before undergoing hemodialysis. The serum NT-proBNP was measured by electro-chemoluminiscence immunoassay. Spearman correlation and linear regression were used to assess the correlation between NT-proBNP and other parameters. Receiver operating characteristic (ROC) curves were used to assess the relationship with NT-proBNP, cardiac troponin T(cTnT), high-sensitive C reactive protein (hsCRP) and left ventricular hypertrophy. Results: The levels of serum NT-proBNP were significantly higher in MHD patients, the patients with CVD had more higher serum NT-proBNP levels than that those without CVD(4649 [2920-14069]pg/ml vs 3006 [1457-7478]pg/ml,P=0.002). In all MHD patients, serum NT-proBNP was correlated positively with age(ρ=0.195,P=0.026), systolic blood pressure (ρ=0.306,P=0.001), hsCRP (ρ=0.228,P=0.009), cTnT (ρ=0.448,P<0.001), carotid artery intima-media thickness (ρ=0.244,P=0.021) and left ventricular mass index (ρ=0.537,P<0.001); while negatively with body mass index (ρ=-0.153,P=0.031), pre-albumin (ρ=-0.304,P<0.001), triglyceride (ρ=-0.246,P=0.014), total cholesterol (ρ=-0.265,P=0.008), low density lipoprotein cholesterol(ρ=-0.254,P=0.012)and left ventricular ejection fraction(ρ=-0.194,P=0.040). Linear regression analysis showed that cTnT (β=0.463,P=0.001), left ventricular mass index (β=0.324,P=0.003) and systolic blood pressure(β=0.208,P=0.008) were independently associated with NT-proBNP. ROC curves analysis showed that the relationship between NT-proBNP and left ventricular hypertrophy was more closely than that cTnT and hsCRP. Conclusions Serum NT-proBNP is markedly elevated in MHD patients, which is associated with CVD and malnutrition.

Key words: hemodialysis, amino-terminal pro-B-natriuretic peptide, cardiovascular disease, left ventricular hypertrophy