The present invention relates to a medical device and uses thereof that
supports or changes the shape of tissue near a vessel in which the device
is placed. The present invention is particularly useful in reducing
mitral valve regurgitation by changing the shape of or supporting a
mitral valve annulus. The device includes a support structure, a proximal
anchor adapted to be positioned in a superior vena cava, and a distal
anchor adapted to be positioned in a coronary sinus. The support
structure engages a vessel wall to change the shape of tissue adjacent
the vessel in which the intravascular support is placed.