A comparison of the Nexfin® and transcardiopulmonary thermodilution to estimate cardiac output during coronary artery surgery
A comparison of the Nexfin® and transcardiopulmonary thermodilution to estimate cardiac output during coronary artery surgery
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DOI：
10.1111/j.1365-2044.2011.07018.x
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发表时间：
2012-04-01
期刊：
影响因子：
10.7
通讯作者：
Bein, B.
中科院分区：
文献类型：
--
作者：
Broch, O.;Renner, J.;Bein, B.
新推出的Nexfin(R)设备可以分析非侵入性指套产生的血压痕迹。在心脏手术中，我们比较了Nexfin和Picco在经心肺热稀释时的心输出量。对40例接受择期冠状动脉搭桥术的左心功能正常的患者在全麻诱导后至出院进入重症监护病房进行研究。Nexfin与Picco在体外循环前、后均有显著相关性(R2=0.81p<；0.001)和(R2=0.56p<；0.001)。BlandAltman分析显示，体外循环前后Nexfin的平均偏差分别为-0.1(95%符合限-0.6~+0.5，百分比误差23%)和-0.1(-0.8~+0.6，26%)1.min-1.m-2。被动抬腿后，两种方法体外循环前(R2=0.72p<；0.001)和术后(r2=0.76p<；0.001)也有良好的相关性。我们得出结论，Nexfin是一种在心脏手术中和术后测量心输出量的可靠方法。
The newly introduced Nexfin (R) device allows analysis of the blood pressure trace produced by a non-invasive finger cuff. We compared the cardiac output derived from the Nexfin and PiCCO, using transcardiopulmonary thermodilution, during cardiac surgery. Forty patients with preserved left ventricular function undergoing elective coronary artery bypass graft surgery were studied after induction of general anaesthesia and until discharge to the intensive care unit. There was a significant correlation between Nexfin and PiCCO before (r2 = 0.81, p < 0.001) and after (r2 = 0.56, p < 0.001) cardiopulmonary bypass. BlandAltman analysis demonstrated the mean bias of Nexfin to be -0.1 (95% limits of agreement -0.6 to +0.5, percentage error 23%) and -0.1 (-0.8 to +0.6, 26%) l.min-1.m-2, before and after cardiopulmonary bypass, respectively. After a passive leg-raise was performed, there was also good correlation between the two methods, both before (r2 = 0.72, p < 0.001) and after (r2 = 0.76, p < 0.001) cardiopulmonary bypass. We conclude that the Nexfin is a reliable method of measuring cardiac output during and after cardiac surgery.