Key result
Bipolar RF ablation between LV endocardium and great cardiac vein eliminates refractory VPCs in 100% of cases.
Why the study?
Ablation for ventricular arrhythmias originating from the LV summit is often challenging, and little is known about bipolar RFCA from the coronary venous system and appropriate settings.
Does bipolar RFCA between the LV endocardium and coronary venous system successfully treat refractory VPCs originating from the LV summit?
Case Report (n=3)
No
Does bipolar RFCA between the LV endocardium and coronary venous system successfully treat refractory VPCs originating from the LV summit?
Bipolar RFCA using an irrigated active electrode in the LV endocardium and an 8-mm-tip return electrode in the coronary venous system is a feasible approach for refractory LV summit VPCs.
May support bipolar RFCA for select refractory LV summit VPCs; hypothesis-generating and requires prospective validation.
Ablation for ventricular arrhythmias originating from the left ventricular (LV) summit is sometimes challenging. Bipolar radiofrequency catheter ablation (RFCA) is effective for refractory arrhythmias; little is known about bipolar RFCA from the coronary venous system and the appropriate settings. We experienced three cases of ventricular premature complexes (VPCs) originating from the LV summit successfully treated by bipolar RFCA between the LV endocardium (irrigated catheters as active electrodes) and coronary venous system (8-mm-tip catheters as return electrodes). These cases showed that bipolar RFCA was effective for the VPCs originating from the LV summit; 8-mm-tip catheters were useful as return electrodes.
No takes yet. Share an insight, caveat, or question.
Tokioka et al. (2020) conducted a case report in Refractory ventricular premature complexes originating from the left ventricular summit (n=3). Bipolar radiofrequency catheter ablation between the LV endocardium and great cardiac vein was evaluated on Abolition of ventricular premature complexes. Bipolar radiofrequency catheter ablation between the left ventricular endocardium and great cardiac vein successfully abolished refractory ventricular premature complexes in all three cases.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: