Briefly, despite that patients with HFrEF were more often male, had more ischemic heart disease, higher NT-pro-BNP, more ventricular extrasystolic couplets (VECs)/ventricular tachycardia (VT), lower blood pressure, and more left bundle branch block (LBBB), they had a similar number of non-cardiovascular co-morbidities compared with HFmrEF and HFpEF. Here, NPPB is linked to Tachycardia.