WHAT IS TRANS-AORTIC AORTIC VALVE REPLACEMENT?
In this procedure aortic valve is replaced by a new valve introduced to the heart over a catheter wire . This catheter is introduced either via the femoral aretery,axillary artery or through the apex of the heart. If it is introduced through the femoral artery it is called trans-femoral aortic valve replacement and if it is introduced throgh left ventricular apex ,it is called the trans-apical aortic valve replacement.
WHAT ARE THE ADVANTAGES OF TAVAR?
If it can be successfully performed,a major disease is treated without an otherwise complicated operation.No need of cuts, no blood loss, no chance of infection,no long hospital stay, no pain,etc
WHAT ARE THE RISKS OF TAVAR?
Higher incidence of heart block, chance of didplacement, non suitability in bicuspid aortic valves, damage to the perpheral vessels ,these are some of the risks of the TAVAR.
WHAT ARE THE OTHER METHODS OF AORTIC VALVE REPLACEMENT?
Open aortic replacement, key hole aortic replacement,etc are the other forms of treatment.
HOW IS TAVAR DONE?
A catheter is passed via the femoral artery up to the heart and then across the aortic valve . A balloon at the tip of the catheter is inflated at the stenotic valve to dilate the narrowed valve. Then the valve mounted on the catheter is passed to the aortic valve position. By a mechanism,the valve is dis-engaged and implanted and furthur adjusted with balloon.