Why the study?
Does QTe/RR interval analysis compared to QTa/RR interval analysis better identify patients at high risk for life-threatening ventricular arrhythmias?
Does QTe/RR interval analysis compared to QTa/RR interval analysis better identify patients at high risk for life-threatening ventricular arrhythmias?
Analysis of the QTe/RR slope, rather than QTa/RR, can identify deranged rate dependence of QT intervals and indicate a higher risk of life-threatening ventricular arrhythmias.
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QTe/RR slope was associated with VT/VF history; hypothesis-generating for repolarization dynamics in arrhythmia risk stratification.
Kiuge et al. (1997) studied this question.
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