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.