Table 1. PAH subject clinical characteristics and RV function.

Subjects	Age	Sex	ERA	PDE5	CCB	PGI2 analogue	Functional Class	RVEF (%)
PAH01	42	F	-	sildenafil 20 mg	nifedipine 30mg	-	II	50
PAH02	29	F	bosentan 125 mg	tadalafil 20 mg	amlodipine 5 mg	-	II	53
PAH03	53	F	ambrisentan 10 mg	-	amlodipine 2.5 mg	-	II	54
PAH04	48	M	ambrisentan 10 mg	tadalafil 20 mg	-	-	I	40
PAH05	64	F	bosentan 125 mg	sildenafil 20 mg	-	iloprost 20mcg/ml	I	47
PAH06	26	F	bosentan 125 mg	sildenafil 20 mg	-	-	I	42
PAH07	29	F	bosentan 62.5 mg	sildenafil 20 mg	-	-	I	40
PAH08	20	F	ambrisentan 10 mg	sildenafil 20 mg	-	-	I	40
PAH09*	27	F	-	-	-	-	II	41
PAH10	38	M	-	sildenafil 20 mg	-	-	II	45

Abbreviations: ERA = Endothelin receptor antagonists. PDE-5 = Phosphodiesterase Type 5 inhibitor. CCB = Calcium channel blocker. PGI₂ = prostacyclin. All medications are taken in the usual dosing schedule. PAH09 was not on pulmonary hypertension specific medication due to chronic thromboembolic pulmonary hypertension before surgery.