Key result
LBBP linked to early or delayed T-wave oversensing causing inappropriate tachyarrhythmia detection.
Why the study?
T-wave oversensing can lead to inappropriate tachyarrhythmia detection and loss of pacing, attenuating the benefits of CRT, and its mechanisms and solutions in LBBP require characterization.
Case Report (n=3)
No
T-Wave oversensing is a potentially harmful complication of left bundle branch pacing that can occur early or late and requires prompt recognition and management to prevent loss of pacing and inappropriate tachyarrhythmia detection.
Requires timely recognition of T-wave oversensing after LBBP to prevent adverse outcomes; hypothesis-generating for incidence and long-term safety in conduction system pacing.
T-Wave oversensing (TWOS) is a type of pacemaker malfunction that can result in inappropriate tachyarrhythmia detection and loss of pacing, attenuating potential benefits of cardiac resynchronization therapy (CRT). We present a case series of TWOS after left bundle branch pacing (LBBP) in the First Affiliated Hospital of Nanjing Medical University from 2020 to 2024. By analyzing underlying mechanisms and summarizing feasible solutions, we highlight the particularity and complexity of TWOS. It can occur immediately after procedure or be detected after a relatively long period of time. The harm of TWOS should be dealt with in a timely manner.
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Chen et al. (2026) conducted a case report in T-Wave oversensing (n=3). Left bundle branch pacing was evaluated on T-Wave oversensing. In a series of 3 cases, T-wave oversensing after left bundle branch pacing was identified as a complex malfunction occurring immediately or delayed, causing inappropriate tachyarrhythmia detection.
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