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Medline ® Abstract for Reference 5

of 'Hydralazine plus nitrate therapy in patients with heart failure with reduced ejection fraction'

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Potential impact of optimal implementation of evidence-based heart failure therapies on mortality.
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Fonarow GC, Yancy CW, Hernandez AF, Peterson ED, Spertus JA, Heidenreich PA
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Am Heart J. 2011;161(6):1024.
 
BACKGROUND: Although multiple therapies have been shown to lower mortality in patients with heart failure (HF) and reduced left ventricular ejection fraction, their application in clinical practice has been less than ideal. To date, empiric estimation of the potential benefits that could be gained from eliminating these existing treatment gaps with optimal implementation has not been quantified.
METHODS: Eligibility criteria for each evidence-based HF therapy, the estimated frequency of use/nonuse of specific treatments, the case fatality rates, and the risk reductions due to treatment were obtained from published sources. The numbers of deaths prevented or postponed because of each guideline-recommended therapy and overall were determined.
RESULTS: Among patients with HF with reduced left ventricular ejection fraction in the United States (n = 2,644,800), the number eligible but not currently treated ranged from 139,749 for hydralazine/isorbide dinitrate to 852,512 for implantable cardioverter defibrillators. The comparative number of deaths that could potentially beprevented per year with optimal implementation of angiotensin-converting enzyme inhibitor/angiotensin receptor antagonist is 6,516;β-blockers, 12,922; aldosterone antagonists, 21,407; hydralazine/isorbide dinitrate, 6,655; cardiac resynchronization therapy, 8,317; and implantable cardioverter defibrillators, 12,179. If these treatment benefits were additive, optimal implementation of all 6 therapies could potentially prevent 67,996 deaths a year.
CONCLUSIONS: A substantial number of HF deaths in this country could potentially be prevented by optimal implementation of evidence-based therapies. These data may underscore the importance of performance improvement efforts to translate evidence-based therapy to routine clinical practice so as to reduce contemporary HF mortality.
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Ahmanson-UCLA Cardiomyopathy Center, Ronald Reagan-UCLA Medical Center, Los Angeles, CA 90095-1679, USA. gfonarow@mednet.ucla.edu
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