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Table 1 PVR on hemodynamic classification of PH

From: Clinical application of pulmonary vascular resistance in patients with pulmonary arterial hypertension

Classification mPAP (mmHg) PAWP (mmHg) PVR (wood)
PH  ≥ 25   
Precapillary PH (including PAH)  ≥ 25  ≤ 15  > 3
Postcapillary PH  ≥ 25  > 15  
Simple  ≥ 25  > 15  ≤ 3
Mixed  ≥ 25  > 15  > 3
  1. PH pulmonary hypertension, PAH pulmonary artery hypertension, mPAP mean pulmonary artery pressure, PAWP pulmonary arteriole wedge pressure, PVR pulmonary vascular resistance. 1 mmHg = 0.l33 kPa