Reeves R A
Department of Medicine, Sunnybrook Health Science Centre, Toronto, Ontario.
Clin Invest Med. 1991 Jun;14(3):251-5.
Ambulatory BP monitoring by obtaining many measurements on one day might eliminate the need for multiple visits on different days to diagnose hypertension. However, review of the published literature shows the stability of ambulatory BP as assessed by test-retest correlation between days to be similar to that of office BP in research settings: r = 0.87/0.70 vs 0.79/0.71 (systolic/diastolic). Between-day standard deviations of the difference are also similar: 8/7 mmHg vs 9/7 mmHg, respectively. The reproducibility of within-day fluctuation in BP is poor (r = 0.28/0.11) and may account for some of the difficulty in showing correlations between BP variability and target organ damage. Evidence to date suggests that ambulatory BP monitoring will not reduce observed between-day differences in BP. Diagnosis of elevated BP will require repeated visits whether office or ambulatory BP measurement is employed.
通过在一天内进行多次测量来进行动态血压监测，可能无需在不同日期多次就诊即可诊断高血压。然而，对已发表文献的回顾表明，在研究环境中，通过不同日期之间的重测相关性评估的动态血压稳定性与诊室血压相似：收缩压/舒张压的相关系数分别为0.87/0.70和0.79/0.71。不同日期差异的标准差也相似：分别为8/7 mmHg和9/7 mmHg。血压日内波动的可重复性较差（相关系数为0.28/0.11），这可能是在显示血压变异性与靶器官损害之间的相关性时遇到一些困难的原因之一。迄今为止的证据表明，动态血压监测不会减少观察到的不同日期之间的血压差异。无论采用诊室血压测量还是动态血压测量，血压升高的诊断都需要多次就诊。
