Here's a recent article, based on a study published in the New England Journal of Medicine this month (3/05), regarding when Mitral valves with regurgitation are ready for surgery, symptoms or not...
http://www.npr.org/templates/story/story.php?storyId=4520181
Best wishes,
http://www.npr.org/templates/story/story.php?storyId=4520181
Best wishes,