Right Ventricular Septal Pacing‐Derived V 6 R‐Wave Peak Time Predicts Successful Left Bundle Branch Area Pacing in Patients With Heart Failure and Left Bundle Branch Block

V₆RWPT during RVSP is a novel predictor of successful LBBAP implantation in heart failure patients with LBBB. This marker demonstrates strong predictive value and correlates with cardiac scar burden. The RVSP V₆RWPT assessment dynamically guides CRT strategy optimization during implantation.