高血压在血液透析患者中一直占很高的比例~([1])。Agarwal等~([2])调查显示,86%的血液透析患者存在高血压(此调查高血压界定值为血液透析前平均收缩压>150mmHg,或透析前平均舒张压>85mmHg,或患者在服用降压药)。透析患者透析前收缩压>160mmHg时,病死率显著升高;但也有研究~([3])结果显示,透析前收缩压过低也会使病死率增高。故将透析患者的血压 Hypertension has been a high percentage of hemodialysis patients ~ ([1]). In a survey of 86% of hemodialysis patients, Agarwal et al. ([2]) showed hypertension (defined as an average systolic blood pressure before hemodialysis> 150 mmHg, or an average diastolic blood pressure> 85 mmHg before dialysis, Antihypertensive drugs). Dialysis patients with pre-dialysis systolic blood pressure> 160mmHg, the case fatality rate was significantly increased; but there are studies ~ ([3]) showed that pre-dialysis systolic blood pressure can also make the case fatality rate increased. It will dialysis patients with blood pressure