Predicted survival estimates according to percent change from baseline for hemodynamic variables. a Stroke volume index (SVI), b right atrial pressure (RAP), c cardiac index (CI), d heart rate (HR), e pulmonary vascular resistance (PVR), and f pulmonary arterial compliance (PCa). Reprinted without modification, with permission from Wolters Kluwer Health, Inc., Jason Weatherald, Athénaïs Boucly, Denis Chemla, et al., Prognostic value of follow-up hemodynamic variables after initial management in pulmonary arterial hypertension, Circulation, volume 137, issue 7, pages 693–704, https://www.ahajournals.org/doi/full/10.1161/CIRCULATIONAHA.117.029254