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News_022008 10-09-2009-Different mechanisms underlying consecutive, postoperative atrial tachyarrhythmias in a Fontan patient. 

 

Pacing Clin Electrophysiol. 2009 Nov;32(11):e18-20. Epub 2009 Sep 10.
PMID: 19744281 [PubMed - indexed for MEDLINE]

 

Different mechanisms underlying consecutive, postoperative atrial tachyarrhythmias in a Fontan patient.

 

Department of Cardiology, Leiden University Medical Center, Leiden, The Netherlands.

 

INTRODUCTION: Atrial tachyarrhythmias (AT) frequently develop later after a Fontan operation and can be successfully treated by ablative therapy. However, new arrhythmias often develop. METHODS AND RESULTS: Consecutive AT emerging in a Fontan patient were ablated using three-dimensional electro-anatomical mapping. During a 6-year period, nine different AT were ablated, including intraatrial reentrant AT (N=5), focal AT (N=3), and focal atrial fibrillation (N=1) originating from distinct right atrial sites. CONCLUSION: In a Fontan patient, successive AT can be caused by different mechanisms. These AT are most likely the result of progressive atrial cardiomyopathy and can be treated by catheter ablation.

 

 

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