[Full root replacement with a Freestyle bioprosthesis for prosthetic valve endocarditis complicated by aortic-root pseudoaneurysm after subcoronary technique; report of a case].

We report a surgical case of prosthetic valve endocarditis( PVE) after aortic valve replacement with a Freestyle stentless bioprosthesis, which was successfully treated with full root replacement using a Freestyle valve. A 80-year-old man underwent aortic valve replacement with a Freestyle stentless bioprosthesis, using subcoronary technique for aortic stenosis in 2004. Three years later he had late PVE, and we found the aortic-root pseudoaneurysm. Although homografts are the optimal for cases of severe aortic annular destruction, availability of these are limited in Japan. We chose a Freestyle valve with full root technique, which fitted well to the destroyed annulus. The postoperative course was uneventful. Freestyle stentless bioprosthesis can be useful option for PVE, meanwhile care should be taken to dead cavity between prosthesis and aortic wall in the subcoronary technique.