| 摘要 |
<p>Mean Pulmonary Arterial Pressure (MPAP), Mean Pulmonary Capillary Wedge Pressure (MPCWP) and Cardiac Index are all determinable (in a method or employing apparatus) from Central Venous Pressure (CVP), Mean Arterial Pressure (MAP), Heart Rate (HR), and Core Body Temperature (T) from the following relationships: MPAP = (a x MAP) + CVP (for MAP < 58), or Va; MPAP = (a x MPAP) + CVP - (10 x INT[(MAX {MAP-109), (CVP-7),0})/10]) for MAP > 58); Vb; MPCWP = (b X MPAP) + CVP - (10 X INT [CVP-7/10]; and VI; CI = K (T.CVP)/ HR2, VII; where a and b are about 0.15; MAX (x, y, z) = largest of the three terms x, y, and z; INT [x] = integer part of x; MAP and CVP is measured in mmHg; T in Celsius and HR in counts per minute; CI is litres per square metre per minute; and K is a variable constant whose value is between 0 and 1000 depending on the values of CVP and HR.</p> |
