Accuracy of radial artery blood pressure determination with the Vasotracâ„¢
Accuracy of radial artery blood pressure determination with the Vasotracâ„¢
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DOI：
10.1007/bf03012951
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发表时间：
1999-05-01
期刊：
影响因子：
--
通讯作者：
Poliac, MO
中科院分区：
文献类型：
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作者：
Belani, KG;Buckley, JJ;Poliac, MO
目的：与侵入性测量的血压和波形相比，评估一种新的无创测量血压 (BP) 方法 (Vasotrac(TM)) 的准确性，并伴有动脉波形和脉搏率显示。方法：健康志愿者 (n=53) 作为研究对象。将通过桡动脉导管 (IABP) 获得的血液、压力和波形与新系统 (Vasotrac BP) 从对侧桡动脉每 12-15 次心跳获得的非侵入性测量结果进行比较。在志愿者亚组（n=11）中，异丙肾上腺素、去氧肾上腺素和硝普钠使血压急剧升高和降低；通过确定两个测量系统之间的相关性和一致性来分析数据。对两个系统获得的波形进行定性检查。结果：Vasotrac 每 12-15 次心跳测量一次无创血压，与 IABP 相关（收缩压 r(2) = 0.89；舒张压 r(2) = 0.88；平均 r(2) = 0.94）。当用 Bland Altman 方法绘制时，两种方法获得的实际值与超过 90% 的读数在 2SD 范围内非常一致。当血压急剧且迅速变化时，血管活性药物输注期间也是如此。在此动态期间，Vasotrac BP 准确地跟踪了 IABP 的变化，并具有相关性（收缩压 r(2) = 0.82；舒张压 r(2) = 0.89；平均 r(2) = 0.95）且高度一致（> 90% 的读数在 Bland Altman 图中的 2 个标准差以内）。两个系统显示的波形在质量上非常相似。两个系统测量的脉搏率相同。结论：Vasotrac系统显示的动脉波形与直接获得的波形相似，并且可以准确地测量血压和脉搏率。这应该是一种以非侵入方式连续测量血压的便捷设备。
Purpose: To evaluate the accuracy of a new non-invasive method (Vasotrac(TM)) to measure blood pressure (BP) with accompanying arterial wave-form and pulse-rate display when compared with BP and waveform measured invasively.Methods: Healthy volunteers (n=53) served as subjects far the study. Blood, pressures and waveforms obtained via a radial artery catheter (IABP) were compared with non-invasive measurements obtained every 12-15 beats by the new system (Vasotrac BP) from the opposite radial artery. In a sub-group of volunteers (n=11), BP was acutely increased and decreased with isoproterenol, phenylephrine and sodium nitroprusside; Data were analyzed by determining correlation and agreement between the two systems of measurement. Waveforms obtained by the two systems were qualitatively examined.Results: Non-invasive BP measured every 12-15 beats by the Vasotrac correlated with IABP (systolic r(2) = 0.89; diastolic r(2) = 0.88; mean r(2) = 0.94). The actual values obtained by the two methods agreed closely with > 90% of readings being within 2SDs when plotted by the Bland Altman method. This was also true during vasoactive drug infusion when BP changed acutely and swiftly. During this dynamic period, Vasotrac BP accurately tracked the changes in IABP with correlations (systolic r(2)= 0.82; diastolic r(2) = 0.89; mean r(2) = 0.95) and close agreement (> 90% of readings were within 2 SDs in the Bland Altman plot). Waveforms displayed by the two systems were qualitatively very similar. Pulse rates measured by the two systems were identical.Conclusions: The Vasotrac system displayed an arterial waveform which was similar to that obtained directly and measured BP and pulse rate accurately It should be a convenient device to measure BP continually in a non-invasive fashion.