Department of Anaesthesia, Austin Hospital, Melbourne, Australia.
Anaesthesia. 2012 Nov;67(11):1266-71. doi: 10.1111/j.1365-2044.2012.07311.x. Epub 2012 Aug 29.
The ultrasonic cardiac output monitor is a non-invasive, continuous-wave Doppler monitor that can be used to measure cardiac output. Its accuracy and precision in peri-operative and critical care has been assessed with varied results. We conducted a meta-analysis to calculate a pooled mean bias, precision and percentage error for this device. Six studies were suitable for inclusion into a pooled parametric analysis consisting of 320 measurements. The mean weighted bias was -0.39 l.min(-1) (95% CI -0.25 to -0.53 l.min(-1) ), precision 1.27 l.min(-1) and percentage error 42.7% (95% CI 38.5-46.9%). The ultrasonic cardiac output monitor achieved similar agreement with bolus thermodilution to that of other minimally invasive methods of peri-operative cardiac output monitoring, and may have a useful role in cardiac output monitoring.
超声心输出量监测仪是一种非侵入性、连续波多普勒监测仪，可用于测量心输出量。其在围术期和重症监护中的准确性和精密度已经得到了不同的评估结果。我们进行了一项荟萃分析，以计算该设备的汇总平均偏差、精度和百分比误差。有 6 项研究适合纳入包含 320 项测量的汇总参数分析。加权平均偏差为-0.39 l.min(-1)（95%置信区间为-0.25 至-0.53 l.min(-1)），精度为 1.27 l.min(-1)，百分比误差为 42.7%（95%置信区间为 38.5-46.9%）。超声心输出量监测仪与热稀释法在围术期心输出量监测的其他微创方法相比具有相似的一致性，在心输出量监测中可能具有有用的作用。
