An implantable technology to control high blood pressure in patients not responding to available medicines has demonstrated initial favorable results in a study conducted at the University Hospital Berne in Switzerland. Developed by Minneapolis-based CVRx in 2002 and entering a clinical trial in the U.S., the tiny device - called the Rheos system - was first implanted in 11 patients undergoing surgery for carotid stenosis. Dr. Jurg Schmidli and colleagues placed electrodes outside the carotid wall and applied electrical stimulation.
