Key result
LBBP achieves ~91% success and improves QRS duration, echo parameters, and NYHA class versus BiVP.
Why the study?
LBBP is a novel CRT modality achieving more physiologic activation than BiVP, prompting evaluation of electromechanical resynchronization and clinical and echocardiographic response of LBBP-CRT.
Does left bundle branch pacing improve electromechanical resynchronization, clinical, and echocardiographic responses compared to biventricular pacing in heart failure patients with left bundle branch block?
Meta-Analysis
Does left bundle branch pacing improve electromechanical resynchronization, clinical, and echocardiographic responses compared to biventricular pacing in heart failure patients with left bundle branch block?
Left bundle branch pacing appears to offer superior electromechanical resynchronization and clinical improvement compared to traditional biventricular pacing in heart failure patients with LBBB.
Supports LBBP over BiV pacing in HF with LBBB; extends trial data via pooled success and outcome benefits.
BACKGROUND Left bundle branch pacing (LBBP) is a novel pacing modality of cardiac resynchronization therapy (CRT) that achieves more physiologic native ventricular activation than biventricular pacing (BiVP). AIM To explore the validity of electromechanical resynchronization, clinical and echocardiographic response of LBBP-CRT. METHODS Systematic review and Meta-analysis were conducted in accordance with the standard guidelines as mentioned in detail in the methodology section. RESULTS In our analysis, the success rate of LBBP-CRT was determined to be 91.1%. LBBP-CRT significantly shortened QRS duration, with significant improvement in echocardiographic parameters, including left ventricular ejection fraction, left ventricular end-diastolic diameter and left ventricular end-systolic diameter in comparison with BiVP-CRT. CONCLUSION A significant reduction in New York Heart Association class and B-type natriuretic peptide levels was also observed in the LBBP-CRT group vs BiVP-CRT group. Lastly, the LBBP-CRT cohort had a reduced pacing threshold at follow-up as compared to BiVP-CRT.
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Yasmin et al. (2024) conducted a meta-analysis in Heart failure with left bundle branch block. Left bundle branch pacing (LBBP) vs. Biventricular pacing (BiVP) was evaluated on Success rate. Left bundle branch pacing achieved a 91.1% success rate and significantly improved QRS duration, echocardiographic parameters, and NYHA class compared to biventricular pacing.
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