Surgical Repair of Congenital Mitral Valve Malformations

  • Dr Pedro Curi-Curi, “Ignacio Chávez” National Cardiology Institute of Mexico, Mexico
  • Dr Samuel Ramirez-Marroquin, “Ignacio Chávez” National Cardiology Institute of Mexico, Mexico
  • Dr Jorge Cervantes, “Ignacio Chávez” National Cardiology Institute of Mexico, Mexico
  • Dr Mauricio Soule, “Ignacio Chávez” National Cardiology Institute of Mexico, Mexico
  • Dr Julio Erdmenger, “Ignacio Chávez” National Cardiology Institute of Mexico, Mexico
  • Dr Juan Calderon-Colmenero, “Ignacio Chávez” National Cardiology Institute of Mexico, Mexico

    • Objective. Surgical developement of mitral valve repair techniques in pediatric patients has been slow because of the great variety in the presentation of congenital mitral valve malformations and the still unknown growing effect over the complex mitral valve apparatus. The aim of this study is to review our early an mid term institutional outcomes in surgical repair of congenital mitral valve malformations.
    Methods. We studied retrospectively 14 patients with surgical repair of congenital mitral valve malformations in a 5 year period. Clinical and echocardiographic follow-up at a mean of 25 months was performed in all cases.
    Results. Operative morbility was 77% and operative mortality 7%. There were no late deaths. Clinical functional class stratification in the mid term improved in 73% of the survivors and persisted in the restant 27%. Freedom from reoperation for mitral valve prosthetic replacement survival rate because of mitral valve repair failure was 84% at 30 days and 77% at 3.5 years.
    Conclusions. Surgical reapair is the best technique option in the treatment of congenital malformations of the mitral valve, and transesophageal intraoperatory echocardiography is highly recommended for evaluation of the results.