Age related, or degenerative valvular heart disease, represents the most common etiology of aortic stenosis in the elderly population. It occurs when the heart's aortic valve narrows. This narrowing prevents the valve from opening fully, which reduces or blocks blood flow from your heart into the main artery to your body and onward to the rest of your body. When the blood flow through the aortic valve is reduced or blocked, your heart needs to work harder to pump blood to your body. Once severe obstruction has developed, death occurs within 3 years unless the aortic valve is replaced.
For people with aortic valve problems, the usual treatment is open heart valve surgery. However, for people who are too ill or who are suffering from other medical conditions such as diabetes and hypertension, open heart surgery may be considered too risky. Transcatheter aortic valve implantation (TAVI) is a procedure that allows an aortic valve to be implanted using a long narrow tube called a catheter. This new surgical technique is less invasive, offers reduced recovery time, and reduced post-operative complications.
Signs and symptoms
Transcatheter Aortic Valve Implantation (TAVI)
Transcatheter Aortic Valve Implantation (TAVI) is a less invasive procedure to replace a narrowed aortic valve. The procedure is performed using one of the two different approaches:
(1) entering through the femoral artery (large artery in the groin), called the transfemoral approach, or
(2) using a minimally invasive surgical approach with a small incision in the chest and entering through a large artery in the chest or through the tip of the left ventricle (the apex), which is known as the transapical approach.
During the procedure, doctors insert a catheter in your leg or chest and guide it to your heart. A replacement valve is then inserted through the catheter and guided to your heart. A balloon may expand the valve, or some valves can self-expand. When the valve is implanted, doctors remove the catheter from your blood vessel.
Advantages of TAVI