Figure legends
Figure 1. Measurement of the aorto-mitral angle in transthoracic
echocardiography.
Figure 2. The receiver operating characteristic curve of postoperative
aorto-mitral angle to predict new onset atrial arrhythmia.
Figure 3. The Kaplan-Meier curve estimating the freedom from new onset
atrial arrhythmia in the cohort.
Figure 4. An example of a post-operative aorto-mitral angle narrowed
after surgery. The dashed arrow indicates the direction of the
transmitral flow (TMF) during diastole. The small aorto-mitral angle
represents the tilting of the mitral annular plane and the angle between
the direction of the TMF, sharpening the mitral annular plane.
Consequently, the diastolic mitral orifice is functionally narrowed.
Table 1. Baseline patients’ characteristics and pre-operative
echocardiography.