Novel TAVI designs

TAVI (Transcathether Aortic Valve Implantation) procedure developed over last 15 years into fully accepted treatment of severe aortic stenosis in patients deemed to be higher risk for conventional open heart aortic valve replacement. since First in Man Trials in 2002, there is now well established clinical evidence for this therapy. Apart from growing experience of Heart Teams and implanters, there has been considerable engineering effort resulting in development of novel valves designs adressing precision and ease of implantation, hopefully resulting in better clinical outcomes. Features and initial clinical results of Symetis, Direct Flow and Venus Valves are described.