Undersized Ring Annuloplasty Increases Strain in the Left Ventricle:
Finite Element Analysis
Background: Undersized ring annuloplasty (RA) has been a standard treatment of severe ischemic mitral regurgitation (MR) for many years. Recent studies have identified a high rate of significant MR recurrence after annuloplasty, up to 60% within two years. The causes of this high failure rate are unknown.