Why the study?
Does inducible ventricular flutter during electrophysiologic studies predict the risk of ventricular tachycardia or ventricular fibrillation in patients with old myocardial infarction?
Population
344 consecutive patients with old myocardial infarction undergoing electrophysiologic studies.
Comparison
Induction of ventricular flutter during… vs Inducible ventricular fibrillation, inducible…
Design
Cohort
Follow-up
5 +/- 8 years
Key result
Inducible ventricular flutter in old MI patients carried a 34% risk of ventricular tachycardia/fibrillation, comparable to SMVT (46%) and higher than noninducible patients (14%, P<0.005).
Authors
Loading...
Inducible ventricular flutter may indicate substantial arrhythmic risk in old MI; challenges consensus on its nonspecificity and leaves open need for prospective validation.
Cohort (n=344)
No
Does inducible ventricular flutter during electrophysiologic studies predict the risk of ventricular tachycardia or ventricular fibrillation in patients with old myocardial infarction?
Absolute Event Rate: 34% vs 14%
p-value: p=< 0.005
In patients with old myocardial infarction, inducible ventricular flutter during EP studies carries a prognostic value comparable to that of sustained monomorphic ventricular tachycardia, indicating a high risk for future ventricular arrhythmias.
Viskin et al. (2003) conducted a cohort in Myocardial infarction (n=344). Inducible ventricular flutter vs. Inducible SMVT, inducible VF, and noninducible patients was evaluated on Ventricular tachycardia/VF (p=< 0.005). Inducible ventricular flutter in old MI patients carried a 34% risk of ventricular tachycardia/fibrillation, comparable to SMVT (46%) and higher than noninducible patients (14%, P<0.005).