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The MADIT II Trial

The MADIT II Trial. Multicenter Autonomic Defibrillator Implantation Trial II Presented at the American College of Cardiology 51st Annual Scientific Session Atlanta, GA Arthur J. Moss, M.D. for the MADIT II investigators.

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The MADIT II Trial

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  1. The MADIT II Trial Multicenter Autonomic Defibrillator Implantation Trial II Presented at theAmerican College of Cardiology 51st Annual Scientific Session Atlanta, GA Arthur J. Moss, M.D. for the MADIT II investigators

  2. Multicenter Autonomic Defibrillator Implantation Trial II (MADIT II):Background • MADIT & Multicenter Unsustained Tachycardia Trial (MUSTT): Demonstrated a benefit from ICD implantation in patients with CAD, reduced ventricular function, unsustained ventricular tachycardia, and inducible ventricular tachycardia on EP testing. • In MADIT II: No EP study required, inclusion criteria included a prior MI at least 30 days previous to implantation, and EF of 30% or less. • MADITT randomized 1232 patients from 71 US centers and 5 European centers to receive either an ICD, or to continue on conventional medical therapy • 3 to 4 million patients fit the entry criteria • 400,000 new cases annually

  3. MADIT II: Study Design Patients with prior MI within 30 days and LVEF < 30% randomized in a 3:2 ratio 71 US centers and 5 European centers Conventional medical therapy (n=490) Implantable defibrillator (n=742) All Cause Mortality - Average follow-up of 20 months Stopped early by Data Safety Monitoring Board

  4. MADIT II: All-Cause Mortality Death Avg. follow-up=20 months P=0.016 Hazard Ratio = 0.65 Conventional Therapy ICD

  5. MADIT II: Mortality Events Non Cardiac Cardiac Arrhythmic Non Arrhythmic Conv Therapy Conv Therapy Conv Therapy Conv Therapy ICD ICD ICD ICD

  6. MADIT II: CHF New or Worsening Heart Failure P=0.09 Conventional Therapy ICD

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