pres
sure
(mm
Hg)
airway
arterial
positive pressure ventilation
DYNAMIC INDICESFluid Volume Responsiveness
PPmax – PPmin
PPV = (PPmax + PPmin) /2
> 12%
PPmax
PPmin
RV volume
RV p
ress
ure
ESV EDV
Early inspiration
increase PVR
decreasevenousreturn