Giant left atrial thrombus successfully treated with anticoagulation
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Updated: Jul 19, 2026

Catheter Ablation in Combination With Left Atrial Appendage Closure for Atrial Fibrillation
Published on: February 26, 2013
Constantin B Marcu1, Clifford Kramer, Thomas J Donohue
1Section of Cardiology, P-207, Hospital of Saint Raphael, Yale University, 1450 Chapel St., New Haven, CT 06511, USA. bmarcu@srhs.org
Abstract:
A giant left atrial mass (6 cm x 4 cm) was visualised on a transoesophageal echocardiogram in an elderly woman who had a history of nonvalvular atrial fibrillation. The surgical removal of the mass, presumed to be a thrombus, was declined by the patient, and oral anticoagulation with warfarin was initiated. After eight weeks of anticoagulation, a repeat echocardiogram demonstrated complete resolution of the mass, without systemic embolisation.
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