How well does a shortened time interval characterize results of a full ambulatory blood pressure monitoring session?
How well does a shortened time interval characterize results of a full ambulatory blood pressure monitoring session?
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缩短的时间间隔对完整动态血压监测结果的表征效果如何？
DOI：
10.1111/j.1751-7176.2008.07784.x
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发表时间：
2008
期刊：
影响因子：
--
通讯作者：
Bergus,GeorgeR
中科院分区：
文献类型：
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作者：
Ernst,MichaelE;Weber,CynthiaA;Dawson,JeffreyD;O'Connor,MichelleA;Lin,Wenjiao;Carter,BarryL;Bergus,GeorgeR
动态血压监测 (ABPM) 可用于评估心血管风险，但需要大量时间。作者研究了缩短的时间间隔与收缩压 (BP) 的相关性，该收缩压是根据 1004 个 ABPM 记录的完整 24 小时 ABPM 会话确定的。排除第一个小时后，对后续 3、5 和 7 小时（总共 4、6 和 8 小时）的平均收缩压与整个疗程和其余疗程的平均收缩压进行皮尔逊相关，结果表明，当疗程从 4 小时增加到 6 小时时，相关性改善最大。对 6 小时时段的 Bland-Altman 分析显示，与整个时段的平均值相比，平均差异为 5.41 mm Hg。作者得出结论，6 小时 ABPM 可以近似从完整 24 小时 ABPM 获得的总体平均血压。然而，缩短的疗程并不能表征昼夜节律变化对 24 小时平均血压的影响，并且可能会高估 24 小时血压水平。
Ambulatory blood pressure monitoring (ABPM) is useful in evaluating cardiovascular risk but requires significant time. The authors examined how closely shortened time intervals correlate with the systolic blood pressure (BP) determined from a full 24‐hour ABPM session in 1004 ABPM recordings. After excluding the first hour, Pearson correlations performed for the mean systolic BP of the subsequent 3‐, 5‐, and 7‐hour periods (4, 6, and 8 hours total) with the entire, and remainder of the session, demonstrated greatest improvement in correlation when the session is increased from 4 to 6 hours. Bland‐Altman analysis of the 6‐hour time period revealed a mean difference of 5.41 mm Hg compared with the full session mean. The authors conclude that 6‐hour ABPM can approximate the overall mean BP obtained from full 24‐hour ABPM. However, shortened sessions do not characterize the influence of circadian variation on the 24‐hour mean BP and may overestimate the 24‐hour BP levels.