Journal
JOURNAL OF THE AMERICAN COLLEGE OF CARDIOLOGY
Volume 60, Issue 20, Pages 1993-2004Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.jacc.2011.12.063
Keywords
nonsustained; tachycardia; unsustained; ventricular
Categories
Funding
- Boston Scientific
- Pfizer
- Bristol-Myers Squibb
- Sanofi
- Boehringer Ingelheim
- Daiichi
- St. Jude Medical
- Merck
- Bayer
- Medtronic
- ESC Textbook of Cardiology
- Kumar and Clarke Textbook of Medicine
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Nonsustained ventricular tachycardia (NSVT) has been recorded in a wide range of conditions, from apparently healthy individuals to patients with significant heart disease. In the absence of heart disease, the prognostic significance of NSVT is debatable. When detected during exercise, and especially at recovery, NSVT indicates increased cardiovascular mortality within the next decades. In trained athletes, NSVT is considered benign when suppressed by exercise. In patients with non-ST-segment elevation acute coronary syndrome, NSVT occurring beyond 48 h after admission indicates an increased risk of cardiac and sudden death, especially when associated with myocardial ischemia. In acute myocardial infarction, in-hospital NSVT has an adverse prognostic significance when detected beyond the first 13 to 24 h. In patients with prior myocardial infarction treated with reperfusion and beta-blockers, NSVT is not an independent predictor of long-term mortality when other covariates such as left ventricular ejection fraction are taken into account. In patients with hypertrophic cardiomyopathy, and most probably genetic channelopathies, NSVT carries prognostic significance, whereas its independent prognostic ability in ischemic heart failure and dilated cardiomyopathy has not been established. The management of patients with NSVT is aimed at treating the underlying heart disease. (J Am Coll Cardiol 2012;60:1993-2004) (C) 2012 by the American College of Cardiology Foundation
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