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Left atrial thrombus formation immediately after cardioversion of atrial fibrillation despite adequate anticoagulant
K Tanabe1, H Yoshitomi, T Asanuma
1Fourth Department of Internal Medicine, Shimane Medical University, Izumo, Japan.
Abstract:
We observed a patient who exhibited de novo left atrial thrombus formation after cardioversion, despite administration of adequate anticoagulant therapy. Preexisting atrial thrombus was excluded by transesophageal echocardiography. Preexisting severe left atrial mechanical dysfunction may be considered as a risk factor for de novo thrombus formation after cardioversion, as well as the poor outcome of cardioversion.