<unk>  (also known as the David procedure) is a cardiac surgery procedure which is used to treat Aortic aneurysms and to prevent Aortic dissection. It involves<unk>  of the aortic<unk>  without<unk>  of the aortic valve. Two similar procedures were developed, one by Sir Magdi Yacoub, and another by Tirone David.
Valve-sparing aortic root replacement
Tissue engineering of heart valves
Percutaneous aortic valve replacement
Aortic valve repair
Mitral valve repair
Mitral valve replacement
Robot-assisted double heart valve replacement
Aortic valve replacement