. Author manuscript; available in PMC: 2013 Dec 1.

Published in final edited form as: J Pediatr. 2012 Jun 28;161(6):1126–1131.e2. doi: 10.1016/j.jpeds.2012.05.050

Table 4. BNP level, 6-minutes walk distance, and hemodynamic data in children with idiopathic PAH.

Variables	Idiopathic PAH mean +/− SD

BNP (pg/ml) (n=51)	133.4+/−261.5

6-minute walk distance (m) (n=46)	473.0+/−113.5

Right heart catheterization (n=45)
Mean right atrial pressure (mmHg)	6.1+/−3.0
Mean pulmonary arterial pressure (mmHg)	59.9+/−20.2
Pulmonary vascular resistance index (unitsxm²)	15.7+/−8.2
Pulmonary/systemic vascular resistance index ratio	0.8+/−0.3
RV end-diastolic pressure (mmHg)	11.6+/−4.8
Pulmonary wedge pressure (mmHg)	8.8+/−2.3
Cardiac index (l/min/m²)	3.4+/−0.8

BNP; brain natriuretic peptide, PAH; pulmonary arterial hypertension, RV; right ventricular, SD, standard deviation