Clinical Research Directory

Inclusion Criteria: * Age ≥ 18 years * Weight \> 25 kg * BMI ≤ 45 * Able and willing to provide written informed consent before undergoing any study-related procedures * Scheduled for any of the following procedures: 1. Ablation of ventricular tachycardia or ventricular fibrillation 2. Electrophysiology study for induction of ventricular arrhythmias 3. Non-invasive electrophysiology testing using an existing implantable defibrillator Exclusion Criteria: 1. Any condition that in the physician investigator's opinion precludes the subject's ability to comply with the study requirements 2. Pregnancy 3. Use of any temporary or permanent mechanical circulatory support (e.g. LVAD, extracorporeal membrane oxygenation, intra-aortic balloon pump or Impella) 4. Presence of a cardiac thrombus 5. Atrial fibrillation or atrial flutter without therapeutic anticoagulation or left atrial appendage occlusion device with a leak 6. Critical aortic stenosis 7. Unstable coronary artery disease (CAD) 8. Stroke or transient ischemic attack (TIA) within past 90 days 9. Hemodynamic instability 10. Unstable angina 11. New York Heart Association (NYHA) Class IV heart failure symptoms / ongoing inotrope support 12. Left Ventricular Ejection Fraction (LVEF) \< 20% 13. History of inability to induce ventricular arrhythmias 14. Active Do Not Resuscitate order 15. Participation in any other clinical study