内脏损害与血压昼夜波动对原发性高血压患者来说，血压水平与高血压性脏器损害的严重程度以及高血压病的预后之间，在总体上存在良好的相关性。但是，既往的即时血压（就诊时血压、门诊血压）存在下述问题：（１）存在血压信息的正确性和稳定性；（２）存在对医疗环境应激... Visceral damage and fluctuations in blood pressure Circadian fluctuations in patients with essential hypertension, blood pressure levels and the severity of hypertensive organ damage and the prognosis of hypertension, there is a good overall correlation. However, there are the following problems with the existing real-time blood pressure (blood pressure at the time of visit and outpatient blood pressure): (1) the correctness and stability of the blood pressure information; (2) the existence of stress on the medical environment;