Phrenic nerve displacement by intrapericardial balloon inflation during epicardial ablation of ventricular tachycardia: Four case reports

Figure 15 Patient 4: Epicardial substrate map. Red dots are tags of phrenic nerve capture areas. Green dot on the tip of the ablation catheter represents the tag of VT termination. A: First morphology of VT termination during radiofrequency delivery in the infero-lateral region; B: Second morphology of VT termination during radiofrequency delivery in the more inferior region. VT: Ventricular tachycardia.