April 1, 2012Pacing and Clinical Electrophysiology
Electrical Isolation of Both Left Pulmonary Veins by a Single Left Atrial Endocardial Radiofrequency Energy Application: Ablation of Marshall Bundle Bypass
Population
A single patient undergoing pulmonary vein isolation
Design
Case_report
Authors
Discussion
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Member takes
Implication
Mitral isthmus ablation may enable left pulmonary vein isolation via Marshall bundle; hypothesis-generating and should not yet change practice.
Structured PICO
P
Population
A single patient undergoing pulmonary vein isolation (implied by context of atrial fibrillation and PV isolation attempts)
I
Intervention
Radiofrequency ablation at the mitral isthmus (single 14-second application targeting a complex continuous electrogram)
O
Outcome
Electrical isolation of both left pulmonary veinssurrogate
Demonstrates that a single RF application at the mitral isthmus can isolate both left pulmonary veins by targeting the Marshall Bundle bypass.
Cite This Study
Varma et al. (2012) studied this question.