Table 1 Haemodynamic characteristics of patients with pulmonary arterial hypertension
VariableMean (SD)
Pulmonary artery mean pressure (mm Hg)*63 (13)
Pulmonary capillary wedge mean pressure (mm Hg)†11 (4)
Transpulmonary pressure (mm Hg)†50 (14)
Right atrial mean pressure (mm Hg)†7 (2)
Cardiac output (l/min)*4.0 (1.8)
Pulmonary vascular resistance (dyne•s/cm5)†1049 (598)

  • *n = 9.

  • †n = 8.