PO-04-045 HOW TO VISUALIZE BIPOLAR ABLATION CATHETERS ON 3D MAPPING FOR BIPOLAR RADIOFREQUENCY CATHETER ABLATION AND MINIMIZE FLUOROSCOPY

Bipolar radiofrequency catheter ablation (RFCA) strategy using two catheters may require prolonged fluoroscopy time because of challenges with positioning. Intracardiac echocardiographic images only offer limited views to help maneuver both catheters. To simultaneously visualize on the 3D mapping system for localizing target and minimizing fluoroscopy. A bipolar RFCA was set up connections grounding pad distal pins connected electrodes THERMOCOOL SMARTTOUCH® SF (Biosense Webster) 1-6-2mm spacing (Figure A). Case 1: 51-year-old male familial HCM presented VT storm which he externally cardioverted. The patient underwent during localized LV summit. Due difficulty achieving transmural lesions unipolar ablation, posteroseptal RVOT below RCC performed successful elimination clinical VT. 3rd 4th second our circuit, visualized CARTO® B). 2: 62-year-old a CRT-D cardiac sarcoidosis non-ischemic cardiomyopathy, recent endocardial in setting multiple ICD shocks. Patient repeat further substrate modification epicardial ablation. With epicardium, were visualized, dome tip created C). an extensive but remained inducible slower heart transplant evaluation. Utilizing novel set-up that allows visualization better localization less exposure.