Preserving a Well-Functioning 33-Year-Old Starr-Edwards Aortic Prosthesis in Repeat Aortic Root Aneurysm Repair.

We report the case of a 61-year-old obese male patient in whom we found a well-functioning 33-year-old Starr-Edwards aortic prosthesis during repeat aortic surgery. Rather than explant the prosthesis, we remodeled the aortic root, almost completely removing the aortic sinuses and leaving only a pillar of aortic tissue around the coronary ostia. The proximal end of a Hemashield tube-graft was then scalloped to accommodate the remaining aortic tissue.

A Technique for Avoiding Patient-Prosthesis Mismatch in the Small Aortic Root.

In the small aortic root, extremely weakened tissue and extensive calcification predispose toward the implantation of small prostheses, anastomotic bleeding, and paravalvular leaks. We describe a procedure in which a "homemade" composite mechanical prosthesis-conduit is implanted in a supra-annular position in two patients with a small aortic root. This technique facilitates the placement of a larger prosthesis, thus avoiding patient-prosthesis mismatch.