Table 3.

Nice 2013 World Symposium on Pulmonary Hypertension’s Criteria for Closing Cardiac Shunts in PAH Patients Associated With Congenital Heart Defects^∗

PVRi, Wood units/m2	PVR, Wood units	Correctable†
<4	<2.3	Yes
>8	>4.6	No
4–8	2.3–4.6	Individual 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.

Reproduced from¹⁷ with permission.