title: [Percutaneous balloon valvuloplasty of a stenosed bioprosthesis (Carpentier-Edwards xenograft) in the tricuspid valve position].
abstract: Two patients with increasing stenosis of a bioprosthesis in the tricuspid valve position were treated by percutaneous balloon valvuloplasty (PBV). Tricuspid valve replacement with a Carpentier-Edwards xenograft and mitral valve replacement with a Duromedics mechanical valve had been performed in both of them 2 to 3 years prior to PBV. Echocardiographic studies revealed tricuspid bioprosthetic stenosis with a prolonged pressure half time. After PBV, the calculated valve area and cardiac index increased and the pressure half time was shortened, although improvement of clinical symptoms was not apparent. Complications related to the procedure did not occur. Further studies are required to determine the indications and to see the long term results of PBV on stenosed bioprosthesis in the tricuspid valve position, but for the moment, we consider PBV be tried with caution for a stenosed bioprosthesis in the tricuspid valve position before the decision for re-replacement of the prosthesis.
authors: Department of Surgery III, Nara Medical College.
authors: J
authors: J
authors: Hasegawa
authors: K
authors: K
authors: Kawachi
authors: R
authors: R
authors: Morita
authors: T
authors: T
authors: Seki
authors: T
authors: T
authors: Kawata
authors: K
authors: K
authors: Mizuguchi
authors: H
authors: H
authors: Nishioka
authors: Y
authors: Y
authors: Kameda
authors: Y
authors: Y
authors: Yoshida
authors: S
authors: S
authors: Kitamura
mesh_terms: D001705:Bioprosthesis; D002404:Catheterization; D003251:Constriction, Pathologic; D005260:Female; D006350:Heart Valve Prosthesis; D006801:Humans; D008297:Male; D008875:Middle Aged; D014261:Tricuspid Valve