Patients at lower risk of arrhythmia recurrence: a subgroup in whom implantable defibrillators may not offer benefit
Alfred P. Hallstrom, PhD*,
John H. McAnulty, MD, FACC ,
Bruce L. Wilkoff, MD, FACC ,
Dean Follmann, PhD#,
Merritt H. Raitt, MD, FACC ,
Mark D. Carlson, MD, FACC ,
Anne M. Gillis, MD¶,
Hue-Teh Shih, MD, FACC||,
Judy L. Powell, RN*,
Hank Duff, MD¶,
Blair D. Halperin, MD, FACC the Antiarrhythmics Versus Implantable Defibrillator (AVID) Trial Investigators
* University of Washington, Seattle, Washington, USA
Oregon Health Sciences University/Collaborating Medical Centers, Portland, Oregon, USA
University Hospitals of Cleveland, Cleveland, Ohio, USA
Cleveland Clinic Foundation, Cleveland, Ohio, USA
|| University of Texas Medical School, Houston, Texas, USA
¶ University of Calgary/Calgary Regional Health Authority Hospitals, Calgary, Alberta, Canada
# National Heart, Lung and Blood Institute, Bethesda, Maryland, USA

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Figure 1 Survival free of ventricular tachyarrhythmia for the first and for the second through sixth sextiles. ICD = implantable cardioverter defibrillator.
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Figure 2 Survival (from death) by treatment arm for the first sextile (A) and for the second through sixth sextiles (B). AAD = antiarrhythmic drug; ICD = implantable cardioverter defibrillator.
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