Here we report first 2 cases of patients with nonvalvular atrial fibrillation with acute cardioembolic stroke in whom thrombi in the left atrial appendage (LAA) were resolved by edoxaban administration. Case 1 reports an 86-year-old woman who suddenly showed right hemiparesis and aphasia due to occlusion of the left middle cerebral artery. She received mechanical thrombectomy and recovered neurologically. Transesophageal echocardiography (TEE) performed on day 1 demonstrated thrombus in the LAA. The thrombus was resolved on day 13 after initiation of edoxaban (30 mg once daily) instead of warfarin, which was administered before stroke onset. Case 2 reports a 49-year-old man who was admitted because of the sudden onset of left hemiparesis and aphasia. TEE demonstrated thrombus in the LAA on day 4, and edoxaban therapy (60 mg once daily) was initiated. The thrombus resolution was observed on day 16, and no embolic stroke occurred.
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