Why the study?
Does analysis of QT dispersion from the 12-lead surface ECG predict mortality or arrhythmic events in post-myocardial infarction patients?
Population
280 consecutive post-myocardial infarction patients treated according to contemporary therapeutic guidelines
Comparison
Analysis of QT dispersion and 25 other… vs Established risk stratifiers
Design
Cohort
Follow-up
mean 32+/-10 months
Authors
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QT dispersion should not guide post-MI risk stratification; this cohort study leaves open any incremental value beyond LVEF and heart rate variability.
Does analysis of QT dispersion from the 12-lead surface ECG predict mortality or arrhythmic events in post-myocardial infarction patients?
QT dispersion from the surface ECG failed to predict subsequent mortality or arrhythmic risk in post-myocardial infarction patients, unlike established markers such as LVEF and heart rate variability.
Zabel et al. (1998) studied this question.
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