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Demonstration of a circadian rhythm in two parameters of heart rate turbulence—turbulence onset (TO) and turbulence slope (TS)—has been difficult.The aim of this study was to devise a new method for detecting circadian rhythm in noisy data and to apply it to selected Holter recordings from two postmyocardial infarction databases: Cardiac Arrhythmia Suppression Trial (CAST, n = 684) and Innovative...
April 2004 marks the fifth anniversary of the first heart rate turbulence (HRT) publication, which demonstrated the usefulness of HRT in predicting cardiac death in postmyocardial infarction patients. Since then, HRT has been shown to predict prognosis of patients with dilated cardiomyopathy and of patients with heart failure of mixed etiology. HRT also has been shown to be predictive even in the...
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