Transkatheterklappenersatz

Transkatheterklappenersatz, often abbreviated as TAVI for Transcatheter Aortic Valve Implantation or TAVR for Transcatheter Aortic Valve Replacement, is a minimally invasive medical procedure used to replace a diseased or damaged heart valve, most commonly the aortic valve. This technique avoids the need for open-heart surgery, which typically involves a large incision in the chest and a heart-lung bypass machine.

The procedure involves inserting a new artificial valve, mounted on a collapsible catheter, through a small incision, usually in the groin or chest. The catheter is then guided through the blood vessels to the diseased heart valve. Once in position, the new valve is expanded, pushing the old, damaged valve leaflets aside and taking over their function. The catheter is then removed.

TAVI is primarily indicated for patients with severe aortic stenosis who are at high or intermediate risk for traditional surgical valve replacement, or for whom surgery is deemed too risky. It offers a less invasive alternative that can lead to faster recovery times and reduced complications compared to open-heart surgery for suitable candidates. The success of TAVI relies on precise imaging and catheter manipulation to ensure accurate valve placement and optimal function. Research continues to expand its application to lower-risk patient populations.