Key result
Patients with previous anterior myocardial infarction and left ventricular dysfunction who had a history of ventricular tachycardia or fibrillation exhibited a significantly steeper QT/RR slope (0.195 vs 0.151, P<0.001) than those without.
Cohort (n=95)
No
Absolute Event Rate: 0.195% vs 0.151%
p-value: p=<0.001
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May aid arrhythmic risk stratification after anterior MI with LV dysfunction; hypothesis-generating and requires prospective validation.
Szydło et al. (2008) conducted a cohort in Remote anterior myocardial infarction with left ventricular dysfunction (n=95). History of ventricular tachycardia or fibrillation (VT/VF) vs. No history of ventricular tachycardia or fibrillation (NoVT/VF) was evaluated on QT/RR slope from the entire 24-hour Holter recording (p=<0.001). Patients with previous anterior myocardial infarction and left ventricular dysfunction who had a history of ventricular tachycardia or fibrillation exhibited a significantly steeper QT/RR slope (0.195 vs 0.151, P<0.001) than those without.
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