Proposed heart failure with preserved ejection fraction (HFpEF) subtypes defined by invasive hemodynamic testing. CO, cardiac output; CpcPH, combined postcapillary and precapillary pulmonary hypertension; EILAH, exercise-induced left atrial hypertension; Ex, exercise; FAC, fractional area change; FWS, free wall strain; PCWP, pulmonary capillary wedge pressure; PVR, pulmonary vascular resistance; RAP, right atrial pressure; RELAH, resting left atrial hypertension; RV, right ventricular; TAPSE, tricuspid annular plane systolic excursion; TR, tricuspid regurgitation.