Venous Ethanol for Ventricular Tachycardia

This study is testing whether injecting ethanol into a specific heart vein (venous ethanol ablation) can stop dangerous heart rhythm problems (ventricular tachycardia or VT) in patients with a history of heart attack who also have an implantable defibrillator (ICD). It is tested as an alternative or add-on to standard radiofrequency ablation. You may be eligible if: - You are between 18 and 85 years old with an ICD - You have ischemic cardiomyopathy (heart damage from a prior heart attack) - You have had 3 or more VT episodes in the past 6 months, or at least 1 appropriate ICD shock, or other criteria indicating VT burden - You are a candidate for RF (radiofrequency) ablation for VT You may NOT be eligible if: - Your kidney function is severely reduced (creatinine > 1.5 mg/dL or clearance < 30 ml/min) - Your heart's pumping function is extremely poor (ejection fraction 10% or less) - You have had cardiac surgery in the past 2 months - You are pregnant - You have a blood clot in the heart - You have New York Heart Association Class IV heart failure Talk to your doctor to see if this trial is right for you.