Figure 2.

Decision tree to guide the strategy for cardiac resynchronization therapy (CRT) implants in heart failure patients according to the patient’s clinical characteristics and the different implant techniques. Abbreviations: BBB: bundle branch block; BiV: biventricular; CSP: conduction system pacing; HF: heart failure; HBP: His bundle pacing; HOT-CRT: His optimized-cardiac resynchronization therapy; IVCD: intraventricular conduction delay; LBBAP: left bundle branch area pacing; LBBB: left bundle branch block; LVEF: left ventricular ejection fraction; LOT-CRT: left bundle branch area pacing optimized-cardiac resynchronization therapy; RBBB: right bundle branch block; VP: ventricular pacing.