September 25, 2008- The use of the CVRx Rheos System in treating early-stage heart failure patients shows Rheos Therapy significantly improved heart structure and function, according to clinical data presented this week by John D. Bisognano, M.D, Ph.D., associate professor of medicine at the University of Rochester School of Medicine and Dentistry, New York, at the Heart Failure Society of America (HFSA) 12th Annual Scientific Meeting in Toronto.