1,600
Participants
Start Date
January 1, 2005
Primary Completion Date
November 1, 2021
Study Completion Date
November 1, 2021
Bentall
Bentall procedure: include replacement of both aortic valve and root
David
David procedure: include replacement of aortic root and aortic valvuloplasty
ARR
Aortic root reconstruction: reconstruction instead of replacement of aortic root, without surgery of the valve. include sandwich procedure, adventitia invertion procedure, etc.
Shanghai Zhongshan Hospital
OTHER