Why the study?
To describe the occurrence, potential mechanisms, and management of T wave oversensing in patients undergoing left bundle branch optimised CRT.
Does left bundle branch optimised (LOT)-CRT lead to T wave oversensing in patients undergoing CRT?
Does left bundle branch optimised (LOT)-CRT lead to T wave oversensing in patients undergoing CRT?
Left bundle branch optimised CRT may be associated with T wave oversensing, highlighting a potential device programming challenge despite improved LV function.
Five patients who underwent left bundle branch optimised (LOT)-CRT developed T wave oversensing (TWOS) between 2 months and 2 years post implant. LOT-CRT resulted in greater improvement in left ventricular size and function compared with historical case-matched controls. No patients experienced symptoms or inappropriate therapy as a result of TWOS. This report describes the occurrence, potential mechanisms and management of TWOS in patients undergoing LOT-CRT.
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Johal et al. (2026) studied this question.
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