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Table 2 PVR on surgery criteria of PAH related to congenital heart disease

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

Recommend defect closing

PVR (wood)

PVRi (wood units · m2)

Y

 < 2.3

 < 4

N

 > 4.6

 > 8

Y/N*

2.3–4.6

4–8

  1. PAH pulmonary artery hypertension, PVR pulmonary vascular resistance, PVRi pulmonary vascular resistance index, Y indicated closing defect, N indicated not closing defect
  2. *Indicated requires individualized assessment