Resumption of Electrical Conduction in Previously Isolated Pulmonary Veins
Why the study?
Does repeat pulmonary vein isolation improve clinical outcomes in patients with recurrent atrial fibrillation and resumed pulmonary vein conduction?
Population
15 patients with recurrent atrial fibrillation after initially successful pulmonary vein isolation
Comparison
Repeat pulmonary vein isolation using RF or… vs Initial pulmonary vein isolation procedure
Design
Cohort
Follow-up
15+/-6 months
Authors
Discussion
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Member takes
Implication
Supports repeat PVI consideration in recurrent AF with PV reconnection; leaves open efficacy pending randomized confirmation.
Structured PICO
Does repeat pulmonary vein isolation improve clinical outcomes in patients with recurrent atrial fibrillation and resumed pulmonary vein conduction?
P
Population
15 patients with recurrent atrial fibrillation after initially successful pulmonary vein isolation (analyzing 51 pulmonary veins)
I
Intervention
Repeat pulmonary vein isolation using RF (30 W, 50 degrees C, 60 seconds) or cryoablation (-80 degrees C for 5 minutes)
C
Comparator
Initial pulmonary vein isolation procedure
O
Outcome
Return of pulmonary vein conduction and clinical outcome after repeat proceduresurrogate
Recurrent atrial fibrillation after pulmonary vein isolation is strongly associated with resumption of PV conduction, and repeat isolation provides significant clinical benefit.
Cite This Study
Nanthakumar et al. (2004) studied this question.