Journal: European Heart Journal. Case Reports
Article Title: Voltage threshold adjustments for a novel pulsed-field ablation catheter with integrated mapping capabilities: lessons from a case series
doi: 10.1093/ehjcr/ytaf231
Figure Lengend Snippet: The left figure in each panel shows the high-density bipolar voltage map acquired with a dedicated mapping catheter (Octaray) and displayed with the standard voltage thresholds. The right figures show the maps acquired with the novel variable-loop circular catheter (VLCC, Varipulse) displayed with different bipolar voltage thresholds. Patient #1 underwent an index PVI with four isolated veins after PFA. Patient #2 underwent a redo PVI with a reconnected left lower pulmonary vein at the beginning of the procedure. Patient #3 shows wide antral PVI and scar on the posterior wall during a redo case. Patient #4 presented with an anterior scar. This map was acquired during a roof-dependent flutter, the tachycardia mechanism of which was also correctly identified by the VLCC. PFA, pulsed-field ablation; PVI, pulmonary vein isolation.
Article Snippet: It consists of an open-irrigated variable-loop circular catheter (VLCC) with 10 electrodes (electrode length 3 mm, inter-electrode spacing 7 mm center-to-center) and is capable of both mapping and PFA (Varipulse, Biosense Webster, Irvine, CA, USA).
Techniques: Isolation