August 1, 1988European Heart Journal
Modification of a left-sided accessory atrioventricular pathway by radiofrequency current using a bipolar epicardial-endocardial electrode configuration
Key result
Bipolar epicardial-endocardial ablation safely increases anterograde ERP to 460 ms in a case report.
- n=1
Why the study?
Does transcatheter ablation using a bipolar epicardial-endocardial electrode configuration increase the anterograde effective refractory period in a patient with a left-sided accessory pathway?
Population
19-year-old woman with a left posterolateral free wall accessory atrioventricular pathway and recurrent…
Design
Case_report
Authors
Discussion
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Implication
May safely modify left-sided pathways in select cases; hypothesis-generating and should not yet change practice.
Study Design
Type
Case Report (n=1)
Structured PICO
Does transcatheter ablation using a bipolar epicardial-endocardial electrode configuration increase the anterograde effective refractory period in a patient with a left-sided accessory pathway?
P
Population
A 19-year-old woman with recurrent syncope due to atrial fibrillation with rapid conduction to the ventricles.
I
Intervention
Transcatheter ablation using radiofrequency current and a bipolar epicardial-endocardial electrode configuration (one electrode in the coronary sinus and another in the left ventricle placed high against the mitral annulus)
O
Outcome
Anterograde effective refractory periodsurrogate
Bipolar epicardial-endocardial radiofrequency ablation successfully modified the anterograde effective refractory period of a left-sided accessory pathway without side effects in a single patient.
Cite This Study
Kück et al. (1988) conducted a case report in Left posterolateral free wall accessory atrioventricular pathway with recurrent syncope due to atrial fibrillation (n=1). Transcatheter ablation using radiofrequency current and a bipolar epicardial-endocardial electrode configuration was evaluated on Anterograde effective refractory period. Transcatheter ablation using a bipolar epicardial-endocardial electrode configuration increased the anterograde effective refractory period from <205 ms to 460 ms without side-effects.