19-5
19.3.3 Calculated Parameters and Formulas
Abbreviation Unit Full spelling Formula
BSA m
2
body surface area Wt
0.425
× Ht
0.725
× 0.007184
C.I. L/min/m
2
cardiac index C.O. / BSA
SV ml stroke volume C.O. / HR × 1000
SI ml/m
2
stroke index SV/ BSA
SVR DS/cm
5
systemic vascular
resistance
79.96 × (AP MAP ˉ CVP) / C.O.
SVRI DS·m
2
/cm
5
systemic vascular
resistance index
SVR × BSA
PVR DS/cm
5
pulmonary vascular
resistance
79.96 × (PAMAP ˉ PAWP) / C.O.
PVRI DS·m
2
/cm
5
pulmonary vascular
resistance index
PVR × BSA
LCW kg·m left cardiac work 0.0136 × APMAP × C.O.
LCWI kg·m/m
2
left cardiac work index LCW / BSA
LVSW g·m
left ventricular stroke
work
0.0136 × APMAP× SV
LVSWI g·m/ m
2
left ventricular stroke
work index
LVSW / B SA
RCW kg·m right cardiac work 0.0136 × PAMAP × C.O.
RCWI kg·m/m
2
right cardiac work
index
RCW / BSA
RVSW g·m
right ventricular stroke
work
0.0136 × PAMAP × SV
RVSWI g· m/m
2
right ventricular stroke
work index
RVSW / BSA
EF % ejection fraction 100 × SV / EDV