Stereotactic radiotherapy for ventricular tachycardia: A study protocol

Background: Currently, the standard curative treatment for ventricular tachycardia (VT) and fibrillation (VF) is radiofrequency catheter ablation. However, when VT circuit deep in myocardium, may not be delivered, a new, minimally invasive using different energies desired. Methods: This protocol paper feasibility study designed to provide stereotactic radiotherapy refractory cured by ablation after at least one The primary end point evaluate short-term safety of this secondary endpoint its efficacy as assessed reduction episode. Cyberknife M6 radiosurgery system will used treatment, prescribed dose target 25Gy fraction. conducted on three patients. Conclusion: Since only option that covered insurance Japan, there currently no other VT/VF cannot We hope patients who are under stress ICD activation. Trial registration: has been registered Japan Registry Clinical Trials (jRCTs042230030).