Saddle Shape of the Mitral Annulus Reduces Systolic Strains on the P2 Segment of the Posterior Mitral Leaflet

Nonplanar shape of the mitral annulus significantly reduced the mechanical strains on the posterior leaflet during systolic valve closure. Reduction in strain in both the radial and circumferential directions may reduce loading on the suture lines and potentially improve repair durability, and also inhibit progression of valve degeneration in patients with myxomatous valve disease.