Key result
LBBAP achieves left bundle branch capture in ~41% of patients, demonstrating a clear learning curve.
Why the study?
Output-dependent QRS transition was recently reported to be required to confirm LBB capture in LBBAP, prompting evaluation of its achievement rate, learning curve, and predictors.
What is the achievement rate and learning curve of true left bundle branch capture during left bundle branch area pacing in patients with bradyarrhythmia?
Observational (n=126)
What is the achievement rate and learning curve of true left bundle branch capture during left bundle branch area pacing in patients with bradyarrhythmia?
Achieving true left bundle branch capture during LBBAP is challenging, has a clear learning curve, and often results in left ventricular septal pacing instead.
No takes yet. Share an insight, caveat, or question.
True LBB capture succeeds in ~36% of LBBAP cases; leaves open whether targeted techniques improve physiologic pacing rates.
Shimeno et al. (2022) conducted an observational in Bradyarrhythmia (n=126). Left bundle branch area pacing (LBBAP) was evaluated on Achievement rate of left bundle branch pacing (LBBP) confirmed by output-dependent QRS transition. Left bundle branch capture during LBB area pacing was achieved in 41.2% of patients, with clinically usable thresholds in 35.7%, demonstrating a clear learning curve (p<0.01).
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