Abstract: A prosthetic conduit for the surgical treatment of cardiovascular pathologies, that can be attached in particular to each of the coronary ostia, left and right (D, S) and to the aortic valved conduit (H), respectively, comprising two hollow terminal elements (2, 3) implantable, by means of respective sewing rings (9, 10), on a coronary ostium (D, S) and on the aortic valved conduit (H), and at least one removable tubular element (4) for the connection between said terminal elements (2, 3), that can be rotated through 360.degree. with respect to them.