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Fractal correlation properties of R-R interval dynamics and mortality in patients with depressed left ventricular function after an acute myocardial infarctionBACKGROUND: Preliminary data suggest that the analysis of R-R interval variability by fractal analysis methods may provide clinically useful information on patients with heart failure. The purpose of this study was to compare the prognostic power of new fractal and traditional measures of R-R interval variability as predictors of death after acute myocardial infarction. METHODS AND RESULTS: Time and frequency domain heart rate (HR) variability measures, along with short- and long-term correlation (fractal) properties of R-R intervals (exponents alpha(1) and alpha(2)) and power-law scaling of the power spectra (exponent beta), were assessed from 24-hour Holter recordings in 446 survivors of acute myocardial infarction with a depressed left ventricular function (ejection fraction
Document ID
20040141719
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Huikuri, H. V.
(University of Oulu Finland)
Makikallio, T. H.
Peng, C. K.
Goldberger, A. L.
Hintze, U.
Moller, M.
Date Acquired
August 22, 2013
Publication Date
January 4, 2000
Publication Information
Publication: Circulation
Volume: 101
Issue: 1
ISSN: 0009-7322
Subject Category
Life Sciences (General)
Distribution Limits
Public
Copyright
Other
Keywords
Non-NASA Center
NASA Discipline Cardiopulmonary
NASA Program Biomedical Research and Countermeasures
Multicenter Study

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