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Updated: Jul 6, 2026
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Direct Pressure Monitoring Accurately Predicts Pulmonary Vein Occlusion During Cryoballoon Ablation
Published on: February 26, 2013
Bigeminal pulmonary vein ectopy suppressed by pulmonary vein isolation
Takumi Yamada1, Yoshimasa Murakami, Junji Toyama
1Division of Cardiovascular Diseases, University of Alabama at Birmingham, Alabama 35294-0019, USA.
International Heart Journal
|March 25, 2008
Summary
Pulmonary vein isolation (PVI) for atrial fibrillation can be guided by basket catheter (BC) technology. This study observed that persistent ectopic beats resolved post-PVI, suggesting left atrial input influences triggers.
Area of Science:
- Electrophysiology
- Cardiac Arrhythmias
- Catheter Ablation
Background:
- Atrial fibrillation (AF) management often involves pulmonary vein isolation (PVI).
- Persistent atrial ectopy can complicate PVI procedures.
- Basket catheters (BC) offer detailed cardiac mapping during ablation.
Observation:
- A patient undergoing PVI for AF experienced persistent bigeminal atrial premature beats.
- Basket catheter recordings localized the ectopic origin to the distal right superior pulmonary vein.
- Successful PVI was confirmed, and surprisingly, the ectopic beats resolved immediately post-procedure.
Findings:
- The study identified the distal right superior pulmonary vein as the source of ectopy.
- Concealed ectopy confirmed successful PVI.
- The complete resolution of PV ectopy post-PVI suggests a dependency on left atrial input.
Implications:
- Pulmonary vein triggers may be influenced by left atrial electrical activity.
- The mechanism underlying PV ectopy could involve triggered activity or reentry.
- Basket catheter guidance enhances the precision of PVI and understanding of arrhythmogenic mechanisms.
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