Objective To investigate the effects of change of pulse wave velocity(PWV) on microalbuminuria(MAU) and analyze the correlation of PWV with MAU in patients with isolated systolic hypertension.Methods Carotid-radial PWV (C-RPWV) and carotid-femoral PWV (C-FPWV) were determined in 265 patients with isolated systolic hypertension.The participants were assigned to groups with MAU and without MAU, and their C-FPWV, C-RPWV and incidence of cardiovascular events were compared.Results 149 patients with MAU had significantly higher C-FPWV,C-RPWV and incidence of cardiovascular events than those without MAU.After adjusting the age,systolic blood pressure, diastolic blood pressure and pulse pressure, the OR of MAU was increased with increase in C-FPWV and C-RPWV.Linear correlation analysis showed that C-FPWV and C-RPWV were positively correlated with 24-hour urinary albumin excretion,multiple logistic regression analysis showed that C-FPWV and C-RPWV were independently correlated with MAU.Conclusion MAU was independently correlated with C-FPWV and C-RPWV,C-FPWV and C-RPWV were the risk factors for MAU.%目的 研究老年单纯收缩期高血压患者脉搏波传导速度(PWV)的变化对微量白蛋白尿(MAU)的影响,探讨PWV与MAU的相关性.方法 选择老年单纯收缩期高血压患者265例,采用动脉硬化PWV检测仪检测颈-股动脉PWV(C-FPWV)及颈一桡动脉PWV(C-RPWV),采用免疫比浊法检测患者24 h MAU含量.根据MAU检测结果,分为MAU阴性组(阴性组)116例和MAU阳性组(阳性组)149例,比较2组患者C-FPWV、C-RPWV及各种心血管事件发生率之间的差异,分析PWV与MAU的相关性.结果 与阴性组比较,阳性组患者C-FPWV及C-RPWV明显增高(P<0.01);总体靶器官损害、左心室肥厚、心肌梗死、外周血管疾病以及肾功能不全发生率明显升高(P<0.05,P<0.01);在控制年龄、收缩压、舒张压、脉压以及心率的情况下,MAU阳性的危险性及人数明显增加;C-FPWV、C-RPWV与24 h尿白蛋白排泄量呈显著正相关(r=0.875,P=0.001;r=0.763,P=0.017).logistic回归分析显示,在校正年龄、收缩压、脉压的基础上,C-FPWV、C-RPWV与24 h尿白蛋白排泄量独立相关(P=0.015,P=0.023).结论 PWV增高可明显增加MAU的危险性,C-FPWV、C-RPWV是MAU的独立危险因素.
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