Table 4

Criteria for Closing Cardiac Shunts in PAH Patients Associated With Congenital Heart Defects

PVRi, Wood units/m2PVR, Wood unitsCorrectable
<4<2.3Yes
>8>4.6No
4-82.3–4.6Individual patient evaluation in tertiary centers

PVR = pulmonary vascular resistance; PVRi = pulmonary vascular resistance index.

  • Criteria: the long-term impact of defect closure in the presence of pulmonary arterial hypertension (PAH) with increased PVR is largely unknown. There are a lack of data in this controversial area, and caution must be exercised.

  • Correctable with surgery or intravascular nonsurgical procedure.