Table 3.

Correlation between various parameters and flow-mediated vasodilation (FMD)

	PAH		CTEPH
	r	P	r	P
Age, years	−0.447	0.063	−0.266	0.524
Systolic BP, mmHg	−0.311	0.209	0.297	0.476
Heart rate, bpm	−0.062	0.807	0.272	0.514
BMI	0.380	0.120	−0.444	0.270
Mean PAP, mmHg	0.072	0.785	0.036	0.932
Cardiac index	0.309	0.213	0.180	0.669
Plasma BNP, pg/mL	−0.225	0.370	−0.329	0.426
Svo2, %	0.068	0.801	−0.359	0.382
PVR, Wood units	−0.040	0.875	−0.188	0.655

^NoteBMI: body mass index; BNP: brain natriuretic peptide; BP: blood pressure; CTEPH: chronic thromboembolic pulmonary hypertension; PAH: pulmonary arterial hypertension; PAP: pulmonary arterial pressure; PVR: pulmonary vascular resistance; Svo₂, mixed venous oxygen saturation