Electrophysiological Features of Atrial Flutter in Cardiac Sarcoidosis: A Report of Two Cases |
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Authors: | Narayanan Namboodiri Martin K Stiles Glenn D Young Prashanthan Sanders |
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Affiliation: | Centre for Heart Rhythm Disorders, University of Adelaide and Royal Adelaide Hospital, Adelaide, Australia |
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Abstract: | We report two cases of systemic sarcoidosis with atrial flutter as the clinical manifestation. In one patient, who had symptoms of shorter duration, the arrhythmia was no longer inducible after a course of glucocorticoid therapy. Electroanatomical mapping in the other case revealed patchy fibrosis of the left atrial myocardium and multiple macro-reentrant circuits. Sinus rhythm could be restored with ablation of these reentrant circuits. To our knowledge, this is the first report on the demonstration of atrial scarring in a patient with sarcoidosis using 3-D electroanatomical mapping. These two cases illustrate that the inflammation of atrial myocardium is the primary mechanism of atrial arrhythmias in patients with cardiac sarcoidosis. |
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Keywords: | atrial flutter sarcoidosis radiofrequency ablation |
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