1983 Volume 3 Issue 3 Pages 377-387
In order to obtain much higher quantitative and reliable data of dynamic performances of cardiovascular system during anesthesia and surgery, clinical application of the computer, ATAC-450 (Nihon-Koden) was performed for real time processing the data related to pressure and flow of circulatory system as an aid to clinical decisionmaking in critical care medicine.
Stroke volume was obtained from waveform of aortic pressure (Warner's pulse contour method), and systemic vascular resistance, venous return resistance, TTI (MAPXHR×TS) mean systolic ejection rate (SI×TS), LVWI, RVWI, right atrial electromechanical index RaEMI (contractile work index of right atrial systole performance), O2 delivery (CaO2×CI×10) and O2 extraction (CaO2-CvO2)⁄(CaO2) were all measured and calculated in 0.005sec of sampling time with 1024 points. And beside, these numerous data were displayed on nine different diagrams on real time processing system.
Clinical value of CVP monitoring has been extended and confirmed with possibility of clinical measurement of mean circulatory filling pressure, and right atrial function.
