M
Marek Malik
Researcher at National Institutes of Health
Publications - 548
Citations - 63023
Marek Malik is an academic researcher from National Institutes of Health. The author has contributed to research in topics: QT interval & Myocardial infarction. The author has an hindex of 78, co-authored 535 publications receiving 58778 citations. Previous affiliations of Marek Malik include St. George's University & Imperial College London.
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Short- and long-term reproducibility of QT, QTc, and QT dispersion measurement in healthy subjects.
TL;DR: The study investigated interobserver and intrasubject reproducibility of QT interval duration and dispersion measured in standard 12‐lead ECGs recorded at 25 mm/sec and showed that the measurement of the QT intervals from standard ECG recordings is feasible and not operator dependent.
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Analysis of 12-Lead T-Wave Morphology for Risk Stratification After Myocardial Infarction
TL;DR: Computerized T-wave morphology analysis of the 12-lead resting ECG permits independent assessment of post-MI risk and an improved risk stratification when combined with other risk markers.
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Heart rate turbulence-based predictors of fatal and nonfatal cardiac arrest (The autonomic tone and reflexes after myocardial infarction substudy)
Azad Ghuran,Fiona Reid,Maria Teresa La Rovere,Georg Schmidt,J. Thomas Bigger,A. John Camm,Peter J. Schwartz,Marek Malik +7 more
TL;DR: The independent value of HR turbulence is confirmed in predicting fatal cardiac arrest and nonfatal cardiac arrest in a low-risk post-acute myocardial infarction population.
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Distinction between arrhythmic and nonarrhythmic death after acute myocardial infarction based on heart rate variability, signal-averaged electrocardiogram, ventricular arrhythmias and left ventricular ejection fraction.
TL;DR: Heart rate variability, the signal-averaged electrocardiogram (ECG), ventricular arrhythmias and left ventricular ejection fraction predict the mechanism of cardiac death after myocardial infarction and a combination of risk factors identified patient groups in which a majority of deaths were either arrhythmic or nonarrhythmmic.
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Baroreflex sensitivity and electrophysiological correlates in patients after acute myocardial infarction
TL;DR: This study confirms that depressed BRS identifies a subgroup at high risk for arrhythmic events after myocardial infarction and that programmed ventricular stimulation may be safely limited to this group without any loss of predictive accuracy.