Key result
Radiofrequency ablation successfully eliminated or significantly suppressed idiopathic frequent premature ventricular contractions originating from the left bundle branch without impairing AV conduction.
Case Report (n=2)
Radiofrequency ablation can safely and effectively eliminate or suppress idiopathic PVCs originating directly from the left bundle branch.
Most premature ventricular contractions (PVCs) arise from the right or left ventricular outflow tract. Some VPCs originate near the His-bundle region. However, there remains a paucity of information on PVCs originating directly from the cardiac conduction system. We describe 2 cases with idiopathic frequent PVCs that were mapped directly to the left bundle branch itself. We also provide an anatomic-based mapping and ablation approach for management of these uncommon and challenging arrhythmias. In both cases we were able to either eliminate or significantly suppress the ectopic source by applying radiofrequency at this location without causing any significant impairment of the atrioventricular conduction.
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Pathak et al. (2016) conducted a case report in Idiopathic frequent premature ventricular contractions (PVCs) (n=2). Radiofrequency ablation was evaluated on Elimination or significant suppression of the ectopic source without significant impairment of atrioventricular conduction. Radiofrequency ablation successfully eliminated or significantly suppressed idiopathic frequent premature ventricular contractions originating from the left bundle branch without impairing AV conduction.
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