Table 3– Haemodynamic parameters in absolute change from rest to exercise and related to change in workload (W) and cardiac output (CO)
VariablesNon-PHPH
ChangeSlope WSlope COChangeSlope WSlope CO
Subjects n7226
Mean Ppa mmHg19±60.29±0.154.55±3.3319±80.42±0.17*7.17±4.88*
sPpa mmHg28±90.43±0.246.65±4.9428±110.61±0.28*9.59±6.64*
dPpa mmHg10±60.16±0.122.56±2.1812±80.32±0.25*5.69±7.37*
TPG mmHg10±60.16±0.102.57±2.4314±7*0.29±0.17*4.71±3.83*
Ppcw mmHg9±30.13±0.081.98±1.517±3*0.13±0.102.12±1.97
Pra mmHg4±30.07±0.071.98±1.514±30.08±0.082.12±1.99
PP mmHg17±80.27±0.204.13±4.066±80.34±0.194.69±2.06
TPR mmHg0.17±1.090.00±0.020.16±0.460.21±1.060.01±0.030.27±0.83
PVR Wood units0.16±0.790.003±0.0130.09±0.340.37±0.840.008±0.0230.23±0.61
PAC mL·mmHg−1-1.19±1.210.02±0.020.32±0.50-0.92±1.050.02±0.020.23±0.24
  • Data are presented as mean±sd, unless otherwise stated. PH: pulmonary hypertension; Ppa: pulmonary artery pressure; sPpa: systolic pulmonary artery pressure; dPpa: diastolic pulmonary artery pressure; TPG: transpulmonary pressure gradient; Ppcw: pulmonary capillary wedge pressure; Pra: right atrial pressure; TPR: total pulmonary resistance; PVR: pulmonary vascular resistance; PAC: pulmonary arterial compliance. *: p<0.05 versus non-PH.