王显利(延安大学咸阳医院心血管内科VIP病区,陕西咸阳712000)血压是反映机体生命活动的重要体征之一,其水平受环境、运动、情绪、病理状态、药物等因素的影响而不断变化,血压在一定时间内变化的程度称为血压变异性(blood pressure variability,BPV)。血压在一定范围内变化不会对机体造成影响,可认为是生理性变异,一旦变化的频率、幅度超过一定范围,则可对机体 WANG Xian-Li (Department of Cardiovascular Diseases, Xianyang Hospital, Yan’an University, Xianyang, Shaanxi 712000, China) Blood pressure is one of the most important signs reflecting the life activities of the body. Its level is constantly changing under the influence of environment, exercise, emotion, The degree of change of blood pressure within a certain period of time is called blood pressure variability (BPV). Changes in blood pressure within a certain range will not affect the body, can be considered a physiological mutation, once the frequency of change, amplitude over a certain range, you can body