February 1, 1997Pacing and Clinical Electrophysiology
Ventricular Fibrillation and Sudden Death After Radiofrequency Catheter Ablation of the Atrioventricular Junction
Why the study?
Does postablation pacing at 90 beats/min prevent ventricular fibrillation and sudden death in patients undergoing RF catheter ablation of the AV junction?
Population
235 patients undergoing radiofrequency catheter ablation of atrioventricular conduction for symptomatic…
Comparison
Postablation pacing prospectively set at 90… vs Postablation pacing not prospectively set at any…
Design
Cohort
Authors
Discussion
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Member takes
Implication
Supports 90 bpm pacing to reduce post-AV ablation VF risk; hypothesis-generating pending randomized confirmation.
Structured PICO
Does postablation pacing at 90 beats/min prevent ventricular fibrillation and sudden death in patients undergoing RF catheter ablation of the AV junction?
P
Population
235 patients undergoing radiofrequency catheter ablation of atrioventricular conduction for symptomatic drug-refractory atrial fibrillation (84%), atrial flutter (9%), or atrial tachycardia (7%)
I
Intervention
Postablation pacing prospectively set at 90 beats/min for 1-3 months
C
Comparator
Postablation pacing not prospectively set at any specific rate and always ≤ 70 beats/min
O
Outcome
Ventricular fibrillation or sudden death after the RF procedurehard clinical
Temporarily pacing the heart at 90 beats/min immediately after AV junction ablation significantly prevents bradycardia-dependent malignant ventricular arrhythmias and sudden death.
Cite This Study
Geelen et al. (1997) studied this question.