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April 06, 2005

Medical Device Reduces Blood Pressure

Researchers at the University of Rochester Medical Center are the first in the nation to test an investigational medical device that lowers blood pressure by activating the body’s natural blood pressure regulation systems.

The landmark procedure, performed March 31, is part of a Phase II clinical research trial to be conducted by a limited number of medical centers in the United States. Called the Rheos Trial, it is funded by CVRx Inc. of Minneapolis. Karl A. Illig, M.D., chief of the Division of Vascular Surgery, is principal investigator for the Rochester trial site. Cardiologist John D. Bisognano, M.D., Ph.D., associate professor of Medicine, who has been involved in development of this technology, and nephrologist James A. Sloand, M.D., associate professor of Medicine, serve as primary co-investigators.

“The Rheos System works by electrically activating the baroreflex system based in the carotid arteries in the neck, regulating blood pressure in a manner similar to a pacemaker regulating heart rhythm,” Illig says. “Low-level electrical stimulation to this area sends signals to the brain, ‘telling’ it to take action to lower blood pressure through a variety of mechanisms, including blood vessel dilatation, heart rate reduction and promotion of fluid excretion by the kidneys. In this way, the Rheos System provides a physiologic approach to reducing high blood pressure by allowing the brain to direct the body’s own control mechanisms.” - more

Posted by Blogorithm at April 6, 2005 01:05 AM

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