Key result
Radiofrequency catheter ablation via the right coronary cusp successfully treated premature ventricular complexes from the proximal left bundle branch, with a complication of incomplete RBBB.
Why the study?
Premature ventricular complexes from the proximal left bundle branch can be ablated in the left ventricular outflow tract but risk damaging normal conduction bundles.
Case Report (n=1)
The right coronary cusp provides a viable alternative approach for ablating PVCs originating from the proximal left bundle branch.
Answers are grounded in this paper and cite their sources.
RCC ablation may enable proximal LBB PVC targeting; hypothesis-generating and should not yet change practice.
Background: Premature ventricular complexes (PVCs) from the proximal left bundle branch (LBB) can be ablated in the left ventricular outflow tract but can easily damage normal conduction bundles. Here, we report a case of successful ablation of PVCs from the proximal LBB within the right coronary cusp (RCC). Case presentation: Our patient was a 70-year-old woman with PVCs from the proximal LBB that were successfully ablated via the RCC through radiofrequency catheter ablation with a 3D mapping system; she had a complication of incomplete right bundle branch block (RBBB) and remained asymptomatic during follow-up. Conclusion: The RCC provides an alternative approach for ablating PVCs originating from the proximal LBB, owing to the close relationship between the RCC and proximal LBB.
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Wu et al. (2022) conducted a case report in Premature ventricular complexes from the proximal left bundle branch (n=1). Radiofrequency catheter ablation via the right coronary cusp was evaluated. Radiofrequency catheter ablation via the right coronary cusp successfully treated premature ventricular complexes from the proximal left bundle branch, with a complication of incomplete RBBB.
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