Additional Study Information: The purpose of this study is to evaluate a new device to treat patients who may benefit from the repair of their mitral heart valve due to mitral regurgitation. The device is called the Edwards Cardioband System (Edwards Cardioband System or the device). The device is investigational in the United States but has been approved in Europe. This clinical study is expected to take approximately 5 years to complete if you are eligible. You will need to return to your doctors office at 1 month, 6 months, and 1, 2, 3, 4 and 5 years after the device implant procedure. Once you have completed the 5-year follow up, your participation in the study is complete.