Transcatheter Aortic Valve Implantation (TAVI) is a minimally invasive procedure used to treat aortic valve stenosis. During this procedure, a new aortic valve is implanted into the heart via a catheter. TAVI allows for valve replacement without the need for open-heart surgery, making it a preferred option for patients who are at high risk or not suitable for traditional surgery. The procedure shortens recovery time and improves heart function.