FIGURE LEGENDS
Figure 1A. Transesophageal echocardiography assessment of
unicuspid aortic valve. Upper left, Mid-esophageal 2D short-axis
transesophageal echocardiography view of the aortic valve. LA, Left
atrium; PV, Pulmonic valve; TV, Tricuspid valve. Upper right,Mid-esophageal 3D short-axis transesophageal echocardiography view of
the aortic valve. LA, Left atrium; PV, Pulmonic valve; TV, Tricuspid
valve. Lower left, Mid-esophageal 2D long-axis transesophageal
echocardiography view of the aortic valve, showing the vegetation
(yellow arrow). AA, Ascending aorta; LVOT, Left ventricular outflow
tract. Lower right, Mid-esophageal 3D long-axis transesophageal
echocardiography view of the aortic valve, showing the vegetation
(yellow arrow). AA, Ascending aorta.
Figure 1B. Schematic of echocardiographic features to detect
unicuspid aortic valve morphology. Four criteria can be used to detect
unicuspid aortic valve: (I) mean aortic transvalvular gradient
>15 mmHg and patient age of <20 years, (II)
single commissural zone of attachment, (III) eccentric valvular orifice
during systole, and (IV) rounded leaflet-free edge on opposite side of
the commissural attachment zone.