Definition Vascular Resistance PVR = 80(PAP – PCWP)/CO, normal 100-200 dyn-s/cm5 SVR = 80(MAP – CVP)/CO, normal 900-1200 dyn-s/cm5 Note that normal PA_systolic is 1/8th systemic SBP, and that pulmonary hypertension is defined as PA_systolic is > 1/4 systemic. Subspecialty Cardiac Anesthesia Related Media Keyword history 84%/2009 See Also: Sources PubMed