Table 1.

Clinical features and hemodynamic parameters.

	CTEPH (n = 12)	PAH (n = 6)
Female/male	6/6	5/1
Age years	58.0 ± 7.6	37.1 ± 10.7*
BMI kg·m−2	26.6 ± 4.0	27.8 ± 16.5
mPAP mmHg	40.6 ± 8.8	68.1 ± 24.2*
PVR dyn·s·m−5	607 ± 246	1070 ± 464 p=0.05
PAOP mmHg	9.7 ± 4.4	12.3 ± 6.6
Cardiac index L·min−1·m−2	2.3 ± 0.4	2.56 ± 0.8
Right atrial pressure mmHg	7.0 ± 5.2	13.83 ± 7.3
SvO2%	61.8 ± 7.6	52.00 ± 4.9 p=0.07
BNP pg·mL−1	166 ± 300	6021 ± 4939*
WHO FCb
I	0	0
II	3	0
III	9	3
IV	0	1

Data are presented as n or mean ± SD.

CTEPH chronic thromboembolic pulmonary hypertension, PAH pulmonary arterial hypertension, BMI body mass index, mPAP mean pulmonary artery pressure, PVR pulmonary vascular resistance, PAOP pulmonary artery occlusion pressure, SvO2 mixed venous oxygen blood saturation, BNP brain natriuretic peptide, WHO FC world health organization functional class.

*p < 0.05, unpaired t-test, data expressed as mean ± SD.