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Eur J Cardiothorac Surg 1998;13:685-693
© 1998 Elsevier Science NL

Bicarbon valve - European multicenter clinical evaluation

^a Bikur Cholim Hospital, Jerusalem, Israel
^b Hadassah University Hospital, Jerusalem, Israel
^c Medisch Centrum de Klokkenberg, Breda, The Netherlands
^d Centre Hospitalier Universitaire, Clermond Ferrand, France
^e Azienda Ospedaliera Ospedale Monaldi, Napoli, Italy
^f Gasthuisberg University Hospital, Leuven, Belgium
^g Hopital La Pitié Salpetrière, Paris, France
^h Hospital Virgin Macarena, Seville, Spain
ⁱ Hôpital Côte de Nacre, Caen, France
^j L'Institut Mutualiste Montsouris, Paris, France
^k Ospedale Niguarda Ca Granda, Milan, Italy
^l Hôpital Lariboisière, Paris, France
^m Grosshadern Klinikum, Munich, Germany
ⁿ Carmel Medical Center, Haifa, Israel
^o London Chest Hospital, London, UK
^p Hôpital Cardiologique, Lille, France

Received 28 July 1997; received in revised form 26 January 1998; accepted 10 March 1998.

^* Corresponding author. Tel.: +972 2 6776790; fax: +972 2 6780927; e-mail: Borman@cc.huji.ac.il

Objective: Fifteen collaborating centers in eight countries present their pooled experience with the new Bicarbon^TM bileaflet valve. Methods: Between 4/90 and 4/96, 1351 patients, 806 males and 545 females, aged 10 to 83, mean 58.4±12.4, underwent valve implantation. Operations: AVR, 726; MVR, 475; DVR, 150. Additional procedures: CABG, 211; TV repair, 64; other, 152. Results: Mortality: 67 early (seven valve related) and 56 late (40 valve related). Valve thrombosis: six obstructive, three non-obstructive; embolism: nine major cerebral, 37 other. Major bleeding: 29. Hemolysis: two clinically significant. Non-structural dysfunction: 24 paravalvular leaks, one leaflet interference. No structural failure! Endocarditis: 24. Reoperation 48: 22 non-structural dysfunctions, 14 endocarditis, seven thrombosis and embolism, five other. Estimated 5-year freedom from valve-related deaths is 97.2% for AVR and 92.4% for MVR; 4-year freedom from valve related deaths for DVR is 90.5%. Mean calculated NYHA improvement is 1.24. Conclusions: The Bicarbon mechanical prosthesis is well designed, durable, has good hemodynamic features and an acceptably low incidence of complications.

Key Words: Bicarbon valve • Heart valve replacement • Bileaflet hinged mechanical prosthesis • Results

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