Strategies for the management of pulmonary arterial hypertension in patients with congenital heart disease

Table 2 Criteria for closing cardiac shunts in PAH-CHD (from [51])

Pulmonary vascular resistance		Recommendations	Class of evidence	Level of evidence
PVRi (WU.m²)	PVR (WU)	Correctable*	Class of evidence	Level of evidence
< 4	< 2.3	Yes	IIa	C
> 8	> 4.6	No	IIa	C
4–8	2.3–4.6	Individual patient evaluation in tertiary centres	IIa	C

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