September 1, 1996Circulation
Ventricular Rate During Atrial Fibrillation Before and After Slow-Pathway Ablation
Why the study?
Does slow-pathway ablation reduce ventricular rate during atrial fibrillation in patients with AVNRT?
Population
35 patients with AV nodal reentrant tachycardia (AVNRT) undergoing slow-pathway radiofrequency ablation
Comparison
Slow-pathway radiofrequency ablation vs Baseline state (before ablation)
Design
Cohort
Follow-up
Acute (during procedure)
Authors
Discussion
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Member takes
Implication
Slow-pathway ablation may slow AF ventricular rate only under autonomic blockade; leaves open its role in AV node modification.
Structured PICO
Does slow-pathway ablation reduce ventricular rate during atrial fibrillation in patients with AVNRT?
P
Population
35 patients with AV nodal reentrant tachycardia (AVNRT) undergoing slow-pathway radiofrequency ablation
I
Intervention
Slow-pathway radiofrequency ablation
C
Comparator
Baseline state (before ablation)
O
Outcome
Ventricular cycle length (mean, maximum, and minimum) during induced atrial fibrillation under autonomic blockade or sympathetic stimulationsurrogate
Slow-pathway ablation slows ventricular rate during atrial fibrillation under autonomic blockade but not sympathetic stimulation, suggesting it alone cannot account for the clinical results of AV node modification.
Cite This Study
Strickberger et al. (1996) studied this question.