One aspect of the invention is a method of treating mitral valve regurgitation in a patient. The method includes the steps of delivering a tissue shaping device to a patent's coronary sinus in an unexpanded configuration within a catheter having an outer diameter no more than nine or ten French, with the tissue shaping device including a connector disposed between a distal expandable anchor comprising flexible wire and a proximal expandable anchor comprising flexible wire, the device having a length of 60mm or less； and deploying the device to reduce mitral valve regurgitation, such as by anchoring the distal expandable anchor by placing the distal expandable anchor flexible wire in contact with a wall of the coronary sinus e.g., by permitting the distal expandable anchor to self-expand or by applying an actuating force to the distal expandable anchor and possibly locking the distal expandable anchor after performing the applying step. The invention also includes a device for performing the method.
