Table 1

Revised hemodynamic definitions of pulmonary hypertension4

PhenotypeHemodynamic definition
Precapillary pulmonary hypertensionmPAP >20 mm Hg +
PAWP <15 mm Hg +
PVR ≥3 woods units
Isolated postcapillary pulmonary hypertensionmPAP >20 mm Hg +
PAWP ≥15 mm Hg +
PVR <3 woods units
Combined precapillary and postcapillary pulmonary hypertensionmPAP >20 mm Hg +
PAWP ≥15 mm Hg +
PVR ≥3 woods units

  • mPAP, mean pulmonary artery pressure; PAWP, pulmonary artery wedge pressure; PVR, pulmonary vascular resistance.