what are the Recommendations for Intervention for Chronic Primary MR
Referenced studies that support the recommendations are
summarized in Online Data Supplement 30.?
In asymptomatic patients with severe primary MR and normal LV systolic function (LVEF ?60% and LVESD ?40 mm) (Stage C1), mitral valve repair is reasonable when the likelihood of a successful and durable repair without residual MR is >95% with an expected mortality rate of <1%, when it can be performed at a Primary or Comprehensive Valve Center.