November 18, 1997Circulation
Radiofrequency Catheter Ablation of Postinfarction Ventricular Tachycardia
Why the study?
Does radiofrequency catheter ablation targeting all inducible VT morphologies improve freedom from recurrent arrhythmias in patients with previous myocardial infarction and recurrent, hemodynamically tolerated VT?
Population
35 patients with a previous myocardial infarction and recurrent, hemodynamically tolerated ventricular…
Comparison
Radiofrequency catheter ablation targeting all… vs Patients with persistently inducible…
Design
Cohort
Follow-up
mean 17+/-12 months and 12+/-11 months
Authors
Discussion
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Member takes
Implication
Noninducibility after ablation was associated with higher arrhythmia-free survival in post-MI VT; supports targeting all inducible morphologies but leaves open need for RCTs.
Structured PICO
Does radiofrequency catheter ablation targeting all inducible VT morphologies improve freedom from recurrent arrhythmias in patients with previous myocardial infarction and recurrent, hemodynamically tolerated VT?
P
Population
35 patients with a previous myocardial infarction and recurrent, hemodynamically tolerated ventricular tachycardia (VT).
I
Intervention
Radiofrequency (RF) catheter ablation targeting all inducible, sustained VT morphologies.
C
Comparator
Patients with persistently inducible 'nonclinical' arrhythmias on follow-up testing (internal comparison based on procedural success).
O
Outcome
Freedom from recurrent arrhythmias, including sudden death.hard clinical
Radiofrequency catheter ablation can serve as a primary cure for postinfarction VT if all inducible ventricular arrhythmias are successfully ablated, significantly reducing arrhythmia recurrence and sudden death.
Cite This Study
Rothman et al. (1997) studied this question.