Fig. 1From: The association of N-terminal pro-brain-type natriuretic peptide with hemodynamics and functional capacity in therapy-naive precapillary pulmonary hypertension: results from a cohort studyCorrelation of NT-proBNP with pulmonary vascular resistance (PVR) in different age groups. Whereas older study participants show a linear correlation between the biomarker and the PVR, serum levels of NT-proBNP were much lower in younger patients, even when very high PVR values could be measured (dots in the circle)Back to article page