Key result
A 2F multipolar catheter via the coronary sinus enables transmural lesions for intramural ischemic VT.
Why the study?
Limitations of endocardial ablation for intramural ventricular tachycardia substrates have prompted exploration of alternative strategies such as bipolar and multipolar ablation via the coronary sinus system.
Case Report
Highlights the potential use of a 2F multipolar catheter in a coronary vein to achieve transmural lesions for intramural ischemic ventricular tachycardia ablation.
May support feasibility of coronary sinus multipolar ablation for intramural ischemic VT; hypothesis-generating and requires prospective validation.
Radiofrequency catheter ablation has been established as an effective therapy for ventricular tachycardia (VT).1,2 Limitations of endocardial ablation approaches have been described, with intramural substrates representing a barrier to successful ablation.3,4 Bipolar ablation strategies have emerged as an option to achieve transmural lesions for intramural VT and premature ventricular complexes (PVCs) in certain anatomic regions.1,5–8 Recent work has demonstrated the use of multipolar ablation via the coronary sinus system as a means of achieving transmural lesions for the treatment of PVCs.
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Blackwell et al. (2024) conducted a case report in Ventricular tachycardia. Intramural ablation leveraging a 2F multipolar catheter in a coronary vein was evaluated. Multipolar ablation via the coronary sinus system using a 2F catheter is described as a technique to achieve transmural lesions for intramural ischemic ventricular tachycardia.
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