Pacing and clinical electrophysiology : PACE
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Pacing Clin Electrophysiol · Oct 2010
Case ReportsLeft-sided atrial flutter originating in the coronary sinus after radiofrequency ablation of atrial fibrillation.
We describe a case of atypical atrial flutter presenting 1 year after radiofrequency ablation for atrial fibrillation (AF). Electrophysiologic study showed a reentry circuit involving the inferolateral aspect of the mitral annulus and the coronary sinus (CS); however, a mitral isthmus line did not terminate the arrhythmia. ⋯ Radiofrequency energy applications from within the CS terminated the tachycardia. Mapping and ablation within the CS should be considered in patients with post-AF ablation arrhythmias, particularly when the mitral annulus appears to be involved in the tachycardia circuit.
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Pacing Clin Electrophysiol · Oct 2010
Randomized Controlled TrialComparison of surgical cut and sew versus radiofrequency pulmonary veins isolation for chronic permanent atrial fibrillation: a randomized study.
Surgical pulmonary veins isolation (PVI) is done to restore sinus rhythm (SR) in patients with chronic permanent atrial fibrillation (CPAF) and mitral valve disease. Here we compare the efficacy of electrical block lines performed with radiofrequency (RF) compared with conventional surgery. ⋯ PVI by SURG formed more effective block lines than RF. SR at hospital discharge was similar among the groups, but more amiodarone was used in RF. During follow-up, incidence of recurrent AF was higher in the RF group.