Low prevalence of left atrial thrombus detected by transoesphageal echocardiogram in patients with arrhythmia prior to DC cardioversion

Patients requiring acute DC cardioversion (DCCV) for atrial fibrillation (AF) or flutter (AFlt) require exclusion of left atrial appendage (LAA) thrombus to reduce their risk of stroke. Transoesophageal echocardiography (TOE) is the gold standard modality but is invasive. Cardiac CT has a high negative predictive value for LA thrombus and is potentially an alternative to TOE in this population. We studied the prevalence of LAA thrombus and spontaneous echo contrast (SEC) in patients who required acute DCCV to determine the feasibility of using CT in this setting.

D. Hare, A. Pope, S. Kueh, J. Looi, N. van Pelt, R. Gabriel
Department of Cardiology, Middlemore Hospital, Auckland
Heart, Lung and Circulation – Volume 23, Supplement 1, e1-e48
Abstract & full-text available.

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