• Takashi Terada, Akiko Usami, Ririko Iwasaki, Daisuke Toyoda, Junko Ozawa, and Ryoichi Ochiai.
• First Department of Anesthesiology, Toho University School of Medicine, Tokyo 143-8541.
• Masui. 2009 Nov 1;58(11):1418-23.

BackgroundClinical significance of PA catheter is controversial. FloTrac sensor bases its calculations on arterial waveform characteristics. We conducted a pilot assessment of the FloTrac sensor by three versions comparing with pulmonary artery catheter (PCA) methodology.MethodsFive patients undergoing cardiac surgery and four patients undergoing renal transplantation were enrolled. A PAC was inserted and radial arterial access was used for semi-invasive determination of CO (APCO) with the Vigileo. CO was measured simultaneously by bolus thermodilution and the Vigileo technique, and CCO was measured simultaneously.ResultsThe correlation with output obtained by FloTrac and obtained by PCA is better with the newer version. Bland Altman analyses demonstrated better agreement between FloTrac and PCA methodology of the newer version.ConclusionsCO measured by a new semi-invasive arterial pressure waveform analysis device showed better agreement with pulmonary artery thermodilution measurement of the newer version.

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