Key Words: AHA Scientific Statements acute coronary syndrome ambulatory ECG monitoring antiarrhythmic drug therapy arrhythmogenic cardiomyopathy athletes cardiac electrophysiology cardiac resynchronization therapy cardiomyopathy catheter ablation congenital heart disease CT imaging ECG echocardiography electrophysiological testing genetic arrhythmias guidelines heart failure imaging implantable cardioverter- defibrillator implantable and external cardioverter devices medication- induced arrhythmias MR imaging myocardial infarction premature ventricular beats resuscitation sarcoidosis specific pathology (eg, congenital heart disease, myocarditis, renal failure) stable coronary artery disease sudden cardiac arrest sudden cardiac death torsades de pointes ventricular fibrillation ventricular tachycardia WRITING COMMITTEE MEMBERS Sana M. Al-Khatib, MD, MHS, FACC, FAHA, FHRS, Chair William G. Stevenson, MD, FACC, FAHA, FHRS, Vice Chair* Michael J. Ackerman, MD, PhD* William J. Bryant, JD, LLM David J. Callans, MD, FACC, FHRS* Anne B. Curtis, MD, FACC, FAHA, FHRS* Barbara J. Deal, MD, FACC, FAHA Timm Dickfeld, MD, PhD, FHRS* Michael E. Field, MD, FACC, FAHA, FHRS Gregg C. Fonarow, MD, FACC, FAHA, FHFSA* Anne M. Gillis, MD, FHRS* Christopher B. Granger, MD, FACC, FAHA* Stephen C. Hammill, MD, FACC, FHRS Mark A. Hlatky, MD, FACC, FAHA Jos A. Joglar, MD, FACC, FAHA, FHRS G. Neal Kay, MD Daniel D. Matlock, MD, MPH Robert J. Myerburg, MD, FACC Richard L. Page, MD, FACC, FAHA, FHRS 2017 by the American College of Cardiology Foundation, the American Heart Association, Inc., and the Heart Rhythm Society. AHA/ACC/HRS GUIDELINE 2017 AHA/ACC/HRS Guideline for Management of Patients With Ventricular Arrhythmias and the Prevention of Sudden Cardiac Death A Report of the American College of Cardiology/American Heart Association Task Force on Clinical Practice Guidelines and the Heart Rhythm Society Circulation *Writing committee members are required to recuse themselves from voting on sections to which their specific rela- tionships with industry may apply; see Appendix 1 for detailed information. ACC/AHA Representative. HRS Rep- resentative. 