Why the study?
Does increased QT dynamicity predict sudden cardiac death in patients with chronic heart failure?
Population
175 patients with chronic heart failure (CHF) in sinus rhythm
Design
Cohort
Follow-up
Mean 29.9+/-17.9 months
Authors
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QTe/RR slope >0.28 was associated with sudden death in HF; leaves open utility for risk stratification pending validation.
Does increased QT dynamicity predict sudden cardiac death in patients with chronic heart failure?
Increased 24-h QTe dynamicity is an independent predictor of sudden death in heart failure patients, potentially aiding in risk stratification for antiarrhythmic prophylaxis.
Pathak et al. (2005) studied this question.
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