Comparison of the ability of two continuous cardiac output monitors to detect stroke volume index: Estimated continuous cardiac output estimated by modified pulse wave transit time and measured by an arterial pulse contour-based cardiac output device.
Comparison of the ability of two continuous cardiac output monitors to detect stroke volume index: Estimated continuous cardiac output estimated by modified pulse wave transit time and measured by an arterial pulse contour-based cardiac output device.
复制标题
两种连续心输出量监测仪检测每搏输出量指数的能力比较：通过修改的脉搏波传导时间估计并由基于动脉脉搏轮廓的心输出量设备测量的估计连续心输出量。
DOI：
10.3233/thc-202332
复制
发表时间：
2020
期刊：
影响因子：
--
通讯作者：
R. Ochiai
中科院分区：
文献类型：
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作者：
T. Terada;R. Ochiai
背景
估计的连续心输出量（esCCO）是一种用于连续测量心输出量（CO）的无创技术，基于通过脉搏血氧仪和心电图确定的改良脉搏波传导时间。
目的
我们检查了esCCO检测每搏输出量指数（SVI）和SVI变化的能力，并与目前可用的动脉波形分析方法进行了比较。
方法
我们回顾性地重新分析了我们先前关于esCCO测量的研究中的15例病例。使用esCCO系统计算SVI，使用基于动脉压的CO（APCO）方法测量，并与相应的间歇推注热稀释CO（ICO）方法进行比较。误差百分比测量和统计方法，包括一致性分析和极坐标图分析。
结果
esCCO和ICO之间的SVI值差异为-3.0 ± 8.8 ml（百分比误差，33.5%）。平均角度偏差为0.8，径向一致性限值为± 27.3。APCO和ICO之间的SVI值差异为0.9 ± 11.2 ml（误差百分比为42.6%）。平均角度偏差为-6.8，径向一致性限值为± 44.1。
结论
本研究表明，esCCO的准确度，精密度和动态趋势优于APCO。
BACKGROUND
Estimated continuous cardiac output (esCCO), a non-invasive technique for continuously measuring cardiac output (CO), is based on modified pulse wave transit time, which is determined by pulse oximetry and electrocardiography.
OBJECTIVE
We examined the ability of esCCO to detect stroke volume index (SVI) and changes in SVI compared with currently available arterial waveform analysis methods.
METHODS
We retrospectively reanalysed 15 of the cases from our previous study on esCCO measurement. SVI was calculated using an esCCO system, measured using the arterial pressure-based CO (APCO) method, and compared with a corresponding intermittent bolus thermodilution CO (ICO) method. Percentage error measurement and statistical methods, including concordance analysis and polar plot analysis, were performed.
RESULTS
The difference in the SVI values between esCCO and ICO was -3.0 ± 8.8 ml (percentage error, 33.5%). The mean angular bias was 0.8 and the radial limits of agreement were ± 27.3. The difference in the SVI values between APCO and ICO was 0.9 ± 11.2 ml (percentage error, 42.6%). The mean angular bias was -6.8 and the radial limits of agreement were ± 44.1.
CONCLUSION
This study demonstrated that the accuracy, precision, and dynamic trend of esCCO are better than those of APCO.