IRVINE, Calif.--(BUSINESS WIRE)--CoreValve (www.corevalve.com) announced today that the expanded clinical evaluation of its ReValving® System for percutaneous aortic valve replacement (PAVR) in high-risk patients with aortic stenosis is enrolling patients at 32 sites in 11 European countries. The ReValving® System procedures can be performed under local anesthesia, without the need for surgical cut-down/repair, and without hemodynamic support or artificially accelerating the heart rate.