A minimally invasive method of performing mitral annuloplasty is disclosed. An implantable device is positioned within the coronary sinus and tightened around the mitral annulus. Mitral valve regurgitation is monitored before, during, and/or after the tightening step. An on-going drug therapy may be...http://www.google.ca/patents/US6709456?utm_source=gb-gplus-sharePatent US6709456 - Percutaneous mitral annuloplasty with hemodynamic monitoring
