Penny J A, Shennan A H, Halligan A W, Taylor D J, de Swiet M, Anthony J
Departments of Obstetrics and Gynaecology, Royal Postgraduate Medical School, Queen Charlotte's Hospital, London, UK.
Blood Press Monit. 1999 Apr;4(2):91-5.
To compare the results of simultaneous opposite-arm and sequential same-arm intra-arterial validation of automated blood pressure monitors.
Intra-arterial blood pressure measurements were compared with blood pressure measurements obtained using conventional sphygmomanometry and two automated blood pressure monitors (the Dinamap XL and the SpaceLabs Scout) using a methodology based on the protocol published by the Association for the Advancement of Medical Instrumentation (AAMI) for the intra-arterial validation of automated monitors.
Thirteen women with radial arterial lines were recruited from the obstetric intensive care unit at Groote Schuur Hospital, Cape Town. For each woman, intra-arterial blood pressure measurements were compared with those obtained by mercury sphygmomanometry and by using the two automated blood pressure monitors with both a sequential same-arm protocol and a simultaneous opposite-arm protocol. The mean and SD of the differences was calculated for each protocol and the results were compared using Student s t test.
The differences between the 'means of the differences' for these two protocols never differed by more than 2 mmHg. For individuals the differences between data obtained using the two methodologies were up to 32 mmHg for mercury sphygmomanometry and 18 mmHg for the automated monitors. The differences between the SD of the differences were all less than 3 mmHg except for that of systolic blood pressure obtained by mercury sphygmomanometry, which was 7 mmHg
The results of this study show that a sequential same-arm and a simultaneous opposite-arm comparison of intra-arterial and indirect blood pressure measurements yield similar results.
比较自动血压监测仪同时双侧上臂和序贯同侧上臂动脉内验证的结果。
采用基于美国医疗仪器促进协会（AAMI）发布的自动监测仪动脉内验证方案的方法，将动脉内血压测量结果与使用传统血压计及两台自动血压监测仪（Dinamap XL和SpaceLabs Scout）获得的血压测量结果进行比较。
从开普敦格罗特舒尔医院的产科重症监护病房招募了13名有桡动脉置管的女性。对于每名女性，将动脉内血压测量结果与通过汞柱式血压计以及使用两台自动血压监测仪采用序贯同侧上臂方案和同时双侧上臂方案获得的测量结果进行比较。计算每种方案差异的均值和标准差，并使用学生t检验比较结果。
这两种方案的“差异均值”之间的差异从未超过2 mmHg。对于个体而言，使用两种方法获得的数据差异，汞柱式血压计可达32 mmHg，自动监测仪可达18 mmHg。除汞柱式血压计测得的收缩压差异标准差为7 mmHg外，其他差异标准差均小于3 mmHg。
本研究结果表明，动脉内和间接血压测量的序贯同侧上臂和同时双侧上臂比较产生相似的结果。
