Importance of Anterior Mitral Basal Stay Chords for Left Ventricular Outflow Hemodynamics: A Computational Study

Aortomitral angle affects cardiovascular events after mitral valve repair for atrial functional mitral regurgitation

“…Furthermore, a narrow AM angle remarkably altered diastolic inflow angle, which led to excessive inflow and disturbed left ventricular hemodynamics 20 There are some other explanations for the negative effect of the narrow AM angle. Xiong et al 21 demonstrated that the AM angle altered left ventricular dynamics and wall shear stress. Akiyama et al 22 demonstrated that the mitral‐septal angle is an important factor influencing the energy loss change.…”

“…Xiong et al 21 demonstrated that the AM angle altered left ventricular dynamics and wall shear stress. Akiyama et al 22 demonstrated that the mitral-septal angle is an important factor influencing the energy loss change.…”

The Impact of Aorto-Mitral Angle on New-Onset Atrial Arrhythmia after Mitral Valve Repair in Patients with Mitral Regurgitation

“…It has been reported that the aorto-mitral angle can influence LV dynamics and wall shear stress. 15) Changes of angle indicating relationships between the left ventricle and the mitral valve, such as the mitral-septal angle or the diastolic inflow angle, influenced the vortex direction and the energy loss change. [16][17][18] Further studies will be needed to address this issue.…”

Bioprosthetic interstrut distance subtending the preserved anterior mitral leaflet mitigates left ventricular outflow tract obstruction

“…However, the valvular-ventricular interactions have an essential role in the maintenance of normal left ventricular (LV) systolic pump function, and transection of the AML chordae has been associated with deleterious effects on LV geometry and contractility. [3][4][5] The objectives of this study were to develop an ovine model of LVOTO by a retained AML following bioprosthetic valve insertion and to assess the effect of interstrut distance on the predisposition to LVOTO. This model will allow research into methods to prevent LVOTO following bioprosthetic valve insertion and transcatheter mitral valve insertion when the AML is fully retained.…”

“…However, the valvular–ventricular interactions have an essential role in the maintenance of normal left ventricular (LV) systolic pump function, and transection of the AML chordae has been associated with deleterious effects on LV geometry and contractility. 3 , 4 , 5…”