Case report: septal radiofrequency ablation for sigmoid ventricular septum-related dynamic obstruction: with observations suggesting left bundle branch block as a potential therapeutic collaborator

Short summary

Radiofrequency ablation (RFA) of the basal septum in a 77-year-old woman with sigmoid ventricular septum (SVS)-related dynamic obstruction resolved severe outflow tract obstruction (210 mmHg gradient) and mitral valve systolic anterior motion (SAM), resulting in a new complete left bundle branch block (CLBBB) and a 14 mmHg gradient post-procedure.

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