[Optimized transseptal approach for left ventricular tachycardia ablation in a patient with a mechanical prosthetic aortic valve].

Prosthetic valves may make ventricular access difficult in radiofrequency catheter ablation. This case report describes an optimized atrial transseptal approach to access the ventricle in a patient with left ventricular tachycardia and a mechanical prosthetic aortic valve.