Mitral Regurgitation

What is Mitral Regurgitation?

Mitral regurgitation, also called mitral insufficiency, is a condition in which blood flows backwards through the mitral valve and back into the left atrium as a result of the valve not closing all the way. Normally, blood flows from the left atrium through the mitral valve and into the left ventricle. When mitral regurgitation goes untreated, the left ventricle has to work harder to provide the body with enough blood, which can lead to heart failure.

Risk Factors

  • Mitral valve prolapse 
  • History of heart infections (such as rheumatic fever)
  • Heart defects from birth 
  • Heart attack


  • Shortness of breath
  • Fatigue 
  • Swelling of the feet and ankles 

Diagnosis and Tests

  • Electrocardiogram (ECG)
  • Chest x-ray 
  • Echocardiogram 


  • Mitral valve repair surgery
  • Mitral valve replacement surgery