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Left‐Sided Atrial Flutter Originating in the Coronary Sinus after Radiofrequency Ablation of Atrial Fibrillation
Author(s) -
JIMENEZ ALEJANDRO,
SHOROFSKY STEPHEN R.,
DICKFELD TIMM M.,
ANAND RISHI,
SALIARIS ANASTASIOS P.,
SABA MAGDI
Publication year - 2010
Publication title -
pacing and clinical electrophysiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.686
H-Index - 101
eISSN - 1540-8159
pISSN - 0147-8389
DOI - 10.1111/j.1540-8159.2010.02718.x
Subject(s) - medicine , cardiology , coronary sinus , atrial flutter , ablation , radiofrequency ablation , mitral annulus , atrial fibrillation , reentry , atrial tachycardia , tachycardia , catheter ablation , diastole , blood pressure
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. Participation of the proximal CS musculature in the circuit suggested a possible target for ablation. 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. (PACE 2010; 33:e96–e99)