NPPB and pulmonary arterial hypertension: However, the mPAP, PVR, RAP, HR and NT‐proBNP were elevated in PAH(+)RVH(‐) patients than in PAH(‐)RVH(‐) patients, whereas the RVEF was apparently lower in PAH(+)RVH(‐) patients when compared with PAH(‐)RVH(‐) patients.