Key result
LBBP linked to intraoperative QRS morphology changes despite maintained capture in a single case.
Why the study?
QRS morphology in LBBAP is used to assess procedural success and confirm LBB capture, but intraoperative changes can present diagnostic challenges.
Case Report (n=1)
Demonstrates that QRS morphology can change during left bundle branch area pacing despite maintained capture, highlighting a potential pitfall for operators.
QRS morphology may shift during left bundle branch pacing despite stable capture; leaves open mechanisms and monitoring needs.
INTRODUCTION: The QRS morphology in left bundle branch area pacing (LBBAP) is utilized to assess procedural success and to confirm left bundle branch (LBB) capture. METHODS AND RESULTS: We present a case in which the QRS morphology of the left bundle branch pacing (LBBP) changed during the procedure despite the maintenance of LBB capture throughout. CONCLUSION: This case highlights the necessity for operators to be aware of this pitfall and raises potential questions regarding the determination of LBB capture.
No takes yet. Share an insight, caveat, or question.
MATSUMOTO et al. (2025) conducted a case report in Left bundle branch area pacing (n=1). Left bundle branch area pacing was evaluated on QRS morphology. In a single case, intraoperative QRS morphology changed during left bundle branch pacing despite the maintenance of left bundle branch capture throughout the procedure.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: