Abstract: A prosthetic aortic root replacement graft for preserving the native aortic valve that includes a biocompatible flexible material having a) a tubular superior segment (3), with an upper free edge (2) for anastomosis of the prosthesis to the aortic arch, and a lower edge (4); b) a hollow medial segment (5) with an upper edge (6) that is connected to the lower edge (4) of the superior segment (3) and a lower edge (8); and c) optionally a tubular inferior segment (10). The medial segment (5) includes three triangular-like tongues (7) tapering towards the upper edge (6) and three bulges (12). The bulges (12) and the tongues (7) are in an alternating arrangement.