Unexpectedly large thrombi in the left atrium detected with intracardiac echocardiography in a case after left atrial appendage ligation

Figures

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  Figure 1. A: Intracardiac echocardiography revealed large thrombi (asterix) in the LA before the atrial septal puncture. B: Transesophageal echocardiography was performed to evaluate the LA thrombi; the 2 thrombi were 40.5 mm × 23.9 mm and 26.7 mm × 15.8 mm, respectively. RA = right atrium; LA = left atrium.

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  Figure 2. A–F: The CT images show that the thrombus is extensively attached from the posterior wall to the lateral wall of the LA. G, H: The 3D image of the thrombus: the red color represents the thrombus, extending from the posterior to the lateral wall. CT = computed tomography; LA = left atrium.

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  Figure 3. The computed tomography images obtained 3 months later revealed partial thrombus remnants on the lateral and posterior walls, but a reduction in thrombus size was observed.