Key result
Abnormal conduction like LBBB and pre-excitation induces reversible cardiomyopathies that improve with appropriate treatment.
Why the study?
Although LBBB and pre-excitation have recently been identified as potentially reversible causes of cardiomyopathy sharing abnormal ventricular propagation, an updated synthesis of mechanisms, prevalence, diagnosis, and management was needed.
This review highlights abnormal conduction-induced cardiomyopathies (such as those caused by RV pacing, LBBB, and pre-excitation) as reversible causes of heart failure that require appropriate diagnosis and management.
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May inform evaluation of conduction abnormalities in cardiomyopathy; leaves open prospective trials to guide practice.
Huizar et al. (2023) conducted a review in Abnormal conduction-induced cardiomyopathy. Abnormal conduction (LBBB, RV pacing, pre-excitation) was evaluated. Abnormal conduction, such as left bundle branch block and pre-excitation, can induce reversible cardiomyopathies that improve with appropriate diagnosis and treatment.
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