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Figure 1: To-and-fro blood flows in the left atrial appendage aneurysm. Echocardiogram in the parasternal short-axis view (a) showing the ostium of the left atrial appendage aneurysm with to-and-fro flows from the left atrium in systole (b) and diastole (c). Apical view (d) showing a comparison of the large fifth chamber to the four chambers of the heart. Transesophageal three-dimensional volume rendered image (e) assisted ostial measurement. Spectral Doppler (f) showing systolic entry of blood into the aneurysm and diastolic exit

Figure 1:  To-and-fro blood flows in the left atrial appendage aneurysm. Echocardiogram in the parasternal short-axis view (a) showing the ostium of the left atrial appendage aneurysm with to-and-fro flows from the left atrium in systole (b) and diastole (c). Apical view (d) showing a comparison of the large fifth chamber to the four chambers of the heart. Transesophageal three-dimensional volume rendered image (e) assisted ostial measurement. Spectral Doppler (f) showing systolic entry of blood into the aneurysm and diastolic exit