Journal ArticleDOI
Impact of reduced heart rate variability on risk for cardiac events. The Framingham Heart Study.
Hisako Tsuji,Martin G. Larson,Ferdinand J. Venditti,Emily S. Manders,Jane C. Evans,Charles L. Feldman,Daniel Levy +6 more
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TLDR
The estimation of HRV by ambulatory monitoring offers prognostic information beyond that provided by the evaluation of traditional cardiovascular disease risk factors, as well as other relevant risk factors.Abstract:
Background Although heart rate variability (HRV) is altered in a variety of pathological conditions, the association of reduced HRV with risk for new cardiac events has not been studied in a large ...read more
Citations
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Journal ArticleDOI
An Overview of Heart Rate Variability Metrics and Norms.
Fred Shaffer,Jay P. Ginsberg +1 more
TL;DR: Current perspectives on the mechanisms that generate 24 h, short-term (<5 min), and ultra-short-term HRV are reviewed, and the importance of HRV, and its implications for health and performance are reviewed.
Journal ArticleDOI
Sudden death due to cardiac arrhythmias.
TL;DR: This review article summarizes important changes in the approach to the serious public health problem of sudden death from ventricular arrhythmias.
Journal ArticleDOI
The clinical significance of subclinical thyroid dysfunction.
TL;DR: The mechanisms underlying tissue alterations in SCTD and the effects of replacement therapy on progression and tissue parameters are examined, and the issue of the need to treat slight thyroid hormone deficiency or excess in relation to the patient's age is addressed.
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Arterial and Cardiac Aging: Major Shareholders in Cardiovascular Disease Enterprises: Part II: The Aging Heart in Health: Links to Heart Disease
Edward G. Lakatta,Daniel Levy +1 more
TL;DR: In this paper, the potential link between age-associated changes in the heart and clinical cardiac disease outcomes was discussed, and it was shown that left ventricular hypertrophy is associated with increased risk for coronary heart disease, sudden death, stroke, and overall cardiovascular disease.
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A healthy heart is not a metronome: an integrative review of the heart's anatomy and heart rate variability.
TL;DR: The authors conclude that a coherent heart is not a metronome because its rhythms are characterized by both complexity and stability over longer time scales.
References
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Regression models and life tables (with discussion
TL;DR: The drum mallets disclosed in this article are adjustable, by the percussion player, as to balance, overall weight, head characteristics and tone production of the mallet, whereby the adjustment can be readily obtained.
Journal ArticleDOI
Power spectrum analysis of heart rate fluctuation: a quantitative probe of beat-to-beat cardiovascular control
TL;DR: It is shown that sympathetic and parasympathetic nervous activity make frequency-specific contributions to the heart rate power spectrum, and that renin-angiotensin system activity strongly modulates the amplitude of the spectral peak located at 0.04 hertz.
Journal ArticleDOI
Power spectral analysis of heart rate and arterial pressure variabilities as a marker of sympatho-vagal interaction in man and conscious dog.
Massimo Pagani,Federico Lombardi,Stefano Guzzetti,Ornella Rimoldi,Raffaello Furlan,Paolo Pizzinelli,Giulia Sandrone,Gabriella Malfatto,Simonetta Dell’Orto,E Piccaluga +9 more
TL;DR: The spontaneous beat-to-beat oscillation in R-R interval during control recumbent position, 90° upright tilt, controlled respiration and acute and chronic β-adrenergic receptor blockade was analyzed, indicating that sympathetic nerves to the heart are instrumental in the genesis of low-frequency oscillations in R -R interval.
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Decreased heart rate variability and its association with increased mortality after acute myocardial infarction
Robert E. Kleiger,Robert E. Kleiger,Robert E. Kleiger,J. Philip Miller,J. Philip Miller,J. Philip Miller,J.Thomas Bigger,J.Thomas Bigger,J.Thomas Bigger,Arthur J. Moss,Arthur J. Moss,Arthur J. Moss +11 more
TL;DR: HR variability remained a significant predictor of mortality after adjusting for clinical, demographic, other Holter features and ejection fraction, and a hypothesis to explain this finding is that decreased HR variability correlates with increased sympathetic or decreased vagal tone, which may predispose to ventricular fibrillation.
Journal Article
Assessment of autonomic function in human by heart rate spectral analysis
B. Pomeranz,Robert J.B. Macaulay,M. A. Caudill,I. Kutz,Dan Adam,Deborah M. Gordon,K. M. Kilborn,A. C. Barger,Daniel C. Shannon,Richard J. Cohen,Herbert Benson +10 more
TL;DR: In this paper, the authors assessed spontaneous heart rate fluctuations by use of autonomic blocking agents and changes in posture, and found that low-frequency fluctuations (below 0.12 Hz) in the supine position are mediated entirely by the parasympathetic nervous system.