Comparison of electrocardiogram parameters and echocardiographic response between distinct left bundle branch area pacing modes in heart failure patients.

Influence of distinct LBBAP modes on ventricular depolarization and repolarization parameters LAFP, LBTP and LPFP all significantly improved ventricular depolarization synchrony and repolarization stability in HF patients: QRSd and IVD, the typical indicators of ventricular depolarization synchrony, were significantly shortened after LBBAP; The repolarization parameters TpTe and TpTe/QTc showed a significant decrease compared to baseline (except that TpTe after LBTP showed a trend with borderline significance), while no significant difference in QTc was observed ( Table 3 ).

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