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24.02.2016 | Ausgabe 4/2016

Heart Failure Reviews 4/2016

Roles and indications for use of implantable defibrillator and resynchronization therapy in the prevention of sudden cardiac death in heart failure

Zeitschrift:
Heart Failure Reviews > Ausgabe 4/2016
Autoren:
Yitschak Biton, Jayson R. Baman, Bronislava Polonsky
Wichtige Hinweise
Yitschak Biton and Jayson R. Baman have contributed equally to this work.

Abstract

Implantable devices are indicated in the primary and secondary prevention of potentially life-threatening ventricular tachyarrhythmias in patients with heart failure. Early studies, including the landmark MADIT trials, showed that implantable cardioverter–defibrillator (ICD) and cardiac resynchronization therapy (CRT) devices can play a significant role in aborting and preventing ventricular arrhythmias, respectively, that can cause sudden cardiac death. To this day, there have been a number of randomized controlled trials, with respective substudy analyses, that have attempted to better understand the indications for these interventions in patient care. Here, we summarize the major results of these studies, and we discuss the role of ICD therapy for both ischemic and non-ischemic cardiomyopathy, emerging evidence in support of wearable defibrillators, and the impact of modified ICD programming strategies on patient outcomes. Regarding CRT therapy, the phenomenon of ventricular reverse remodeling is an important prognostic indicator in preventing future ventricular tachyarrhythmia episodes. In summation, we provide an overview of the possible selection criteria that can be used in identifying appropriate patients for ICD and/or CRT therapy, as supported by the data.

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