动脉压力波形衰减引起的平均血压变化。

Changes in mean blood pressure caused by damping of the arterial pressure waveform.

作者信息

Cunningham S, Symon A G, McIntosh N

机构信息

Department of Child, Life and Health, University of Edinburgh, UK.

出版信息

Early Hum Dev. 1994 Jan;36(1):27-30. doi: 10.1016/0378-3782(94)90030-2.

DOI:10.1016/0378-3782(94)90030-2

PMID:8026362

Abstract

'Damping' of an intra-arterial pressure waveform theoretically affects systolic and diastolic blood pressure whilst mean blood pressure (mbp) continues to be reliable. We assessed changes in mbp associated with 79 episodes of damping in 30 infants. The average mbp in the hour just before damping occurred was compared with that in the first hour of damping. The mean change in mbp was -0.845 mmHg. In 50% of cases this change was < 2 mmHg and in 24% of episodes > or = 4.1 mmHg. Damping may produce clinically significant changes in mbp which computer trend data may help to differentiate.

摘要

动脉内压力波形的“衰减”理论上会影响收缩压和舒张压，而平均血压（mbp）仍然可靠。我们评估了30例婴儿中79次压力波形衰减事件相关的mbp变化。将压力波形衰减发生前一小时的平均mbp与衰减发生后第一小时的平均mbp进行比较。mbp的平均变化为-0.845 mmHg。在50%的病例中，这种变化小于2 mmHg，在24%的事件中大于或等于4.1 mmHg。压力波形衰减可能会导致mbp出现具有临床意义的变化，计算机趋势数据可能有助于对此进行区分。