Treatment of Focal Ventricular Tachycardias Using a Pulsed Field Ablation From a Point Ablation Catheter Short Title FOCUS-PFA

Inclusion Criteria:

Subjects must meet ALL of the following inclusion criteria to be eligible for participation in this clinical investigation:

• Patient is planned for a catheter ablation procedure to ablate either:

• Premature ventricular contractions (PVCs) and a class I or IIa indication forcatheter ablation of PVCS according to the 2019 HRS/EHRA/APHRS/LAHRS guidelines

• Symptomatic Sustained Monomorphic Ventricular Tachycardia

• Able and willing to provide written consent and comply with all testing andfollow-up requirements

• Above 18 years of age

Exclusion Criteria:

• Documented intracardiac thrombus or (if this can be dissolved with anticoagulation,the patient would then be eligible to participate)

• Contraindication to anticoagulation

• Life expectancy or other disease processes likely to limit survival to less than 12months.

• Currently enrolled in an investigational study evaluating another device, biologic,or drug, that would interfere with this trial.

• NYHA Class IV heart failure

• Severe, untreated coronary artery disease which would preclude infusion ofprovocative agents

• Severe aortic stenosis (AVA < 1.0cm, or PG > 64mmHg)

• Severe mitral regurgitation.

• Allergy to contrast which is unable to be adequately pre-medicated.

• Acute non-cardiovascular illness or systemic infection

• Thrombocytopenia (platelet count < 50,000/mm3) or coagulopathy unless corrected

• Cardiogenic shock unrelated to ventricular arrhythmias

• Pregnancy or anticipated pregnancy during study follow-up

• PVCs or VT, which are felt to be secondary to electrolyte imbalances active thyroiddisease or any reversible non-cardiac cause.