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///2011 Abstract Details
2011 Abstract Details2019-08-02T19:41:08-05:00

Haemodynamic-Oxygen Delivery Diagnostic Chart

Abstract Number: 0
Abstract Type: Original Research

Sergey V Sokologorskiy Professor1 ; Efim M Shifman Professor2


B.Shramek' Haemodynamics’ diagnostic chart is widely used in cardiovascular monitoring for diagnostic and therapy management purposes. But as the main function of circulation is to deliver oxygen to tissues and cells, in absence of oxygen delivery analyses this chart doesn’t clearly answer the question whether the patient’s haemodynamic changes are physiological or pathological ones. Our objectives were to combine B.Shramek’s Haemodynamics diagnostic chart with system oxygen transport parameters.


Oxygen delivery index (DO2I) is commonly used for evaluation of system oxygen transport and calculated as:

DO2I = CaO2 * CI

B.Shramek’s Haemodynamics diagnostic chart already has horizontal axis which represents current СI values. It is very easy to add the second vertical axis to the right side of the chart for representing current CaO2 values. In order to reduce lines on the chart we scaled the CaO2 axis in such a way that graphical borders of its normal values match the lines of Mean blood pressure normal values. Now, each time a point on the chart with coordinates corresponding to CI and CaO2 current values shows the oxygen delivery state. So this advanced Hemodynamics-Oxygen delivery chart carries two points: first one – the original Shramek’s haemodynamics point and the second – newly introduced Oxygen Delivery (OD) point.


Normal value range of DO2I lies within 480-800 ml/min/m2. So we have to draw two parabolas corresponding to these values on the chart. These lines divide the chart into three zones: left – hypoxia, central – normal oxygen delivery and right – hyperoxia. The location of the OD point on the chart will demonstrate the system oxygen delivery state.


This combined chart may be successfully used in a real time monitoring mode for diagnostic and therapeutic management of haemodynamics and system oxygen delivery disturbances.


1.Sramek BB/An.Acad.Med. Sing.-1994 - Vol16 - Sup 6 - P26-32

SOAP 2011