Severe calcification of a Shelhigh stentless valved conduit.

A 74-year old patient developed severe aortic valve regurgitation 11 years following root replacement using a stentless Shelhigh tube-graft. Computed tomography scan showed a heavily calcified aortic conduit (Fig. 1), although the company claims that detoxification process eliminates residual glutaraldehyde and ensures less calcification in the long term. The patient underwent successful transapical transcatheter aortic valve implantation.