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Leaflet Gaussian curvatures after mitral valve repair. Average Gaussian curvature with standard error are presented for each leaflet region (A1-P3) for patients repaired with flat or saddle-shaped annuloplasty rings. Patients repaired with saddle-shaped rings show increases in the Gaussian curvature compared with patients repaired with flat rings. These differences are significant in all regions except the P1 region.
