When Should the Mitral Valve Be Repaired or Replaced in Patients With Ischemic Mitral Regurgitation?

Surgical correction of chronic ischemic MR can be performed with favorable early and late results, although recurrent MR occurred more often after repair. Among patients who underwent repair of ischemic MR, a preoperative posterior leaflet tethering angle of 22 degrees or greater was associated with worse late outcomes.