Key result
Bipolar radiofrequency catheter ablation is an effective therapeutic option for ventricular arrhythmias originating from deep intramural substrates, though it carries risks of serious complications such as atrioventricular block.
Why the study?
Premature ventricular contractions and ventricular tachycardias of intramural origin pose challenges for conventional radiofrequency ablation, while bipolar ablation remains limited in clinical use, investigational, and not widely available.
Does bipolar radiofrequency catheter ablation reduce the burden of ventricular arrhythmias in patients with intramural origins?
Does bipolar radiofrequency catheter ablation reduce the burden of ventricular arrhythmias in patients with intramural origins?
Bipolar radiofrequency ablation is a promising and effective alternative for treating deep intramural ventricular arrhythmias that fail conventional unipolar ablation, though careful technique is required to avoid collateral damage.
A minority of premature ventricular contractions (PVC) and ventricular tachycardias (VT) have an intramural origin, which represents a challenge for conventional radiofrequency ablation. Bipolar ablation has the potential ability to create deeper and more transmural lesions and has been demonstrated to be optimal treatment in these cases. Bipolar ablation carries a relatively low risk of complications and is effective in eliminating or reducing the burden of ventricular arrhythmias. Despite its utility and efficacy, the clinical use of bipolar ablation is limited, and B-RF technology is still investigational and not widely available. This article reviews the technique of bipolar ablation and all its advantages when applied to specific scenarios.
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Nakajima et al. (2022) conducted a review in Ventricular Arrhythmias. Bipolar Radiofrequency Catheter Ablation vs. Unipolar Radiofrequency Catheter Ablation was evaluated. Bipolar radiofrequency catheter ablation is an effective therapeutic option for ventricular arrhythmias originating from deep intramural substrates, though it carries risks of serious complications such as atrioventricular block.
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