Structural valvular deterioration of Hancock standard valve in the mitral position 33 years after initial implantation
Tóm tắt
A 77-year-old woman who had undergone mitral valve replacement (MVR) with a 29 mm Hancock standard (H–S) bioprosthesis (Model 242) and tricuspid annuloplasty (Kay’s method) at the age of 44 years was admitted urgently with acute heart failure. Echocardiography showed severe transvalvular leakage of the prosthesis and moderate tricuspid regurgitation. The patient underwent reMVR with a 29 mm Carpentier-Edwards Perimount Magna Mitral bioprosthesis and tricuspid annuloplasty with a 30 mm MC3 ring. The explanted bioprosthesis showed mild calcification and a tear in the leaflet, dehisced commissures and pannus overgrowth. To our knowledge there are no reports describing H–S valves that were still functioning over 30 years after implantation. Herein, we report a case of reMVR in a patient with an H–S valve that had been implanted 33 years previously.
Tài liệu tham khảo
Santini F, Luciani GB, Restivo S, et al. Over twenty-year follow-up of the standard Hancock porcine bioprosthesis implanted in the mitral position. Ann Thorac Surg. 2001;71:S232–5.
Nishida T, Sonoda H, Oishi Y, et al. Mechanical prosthesis is reasonable for mitral valve replacement in patients approximately 65 years of age. Ann Thorac Surg. 2013;96:1614–20.
Shimazaki Y, Kuraoka S, Takeda F, et al. Mitral valve re-replacement for impaired bioprosthesis after 19 years in a patient undergoing steroid treatment. J Heart Valve Dis. 2004;12:45–7.
Niinami H, Naito Y, Koyanagi H, et al. Malfunction of a Hancock bioprosthesis in the mitral position 24 years after initial implantation. J Heart Valve Dis. 2000;9:810–2.
Wilbring M, Alexiou K, Tugtekin SM, et al. Transapical transcatheter valve-in-valve implantation for deteriorated mitral valve bioprostheses. Ann Thorac Surg. 2013;95:111–7.
Valente M, Minarini M, Thiene G, et al. The pathology of Hancock standard porcine valve prosthesis: a 20-year span of experience. J Card Surg. 1990;5:328–35.
Eishi K, Ishibashi-Ueda H, Nakano K, et al. Calcific degeneration of bioprosthetic aortic valves in patients receiving steroid therapy. J Heart Valve Dis. 1996;5:668–72.