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European Heart Journal 1980 1(4):281-286;
Copyright © 1980 by the European Society of Cardiology.
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© 1980 The European Society of Cardiology

Eight year experience with the Björk-Shiley prosthesis in 833 patients

F. SCHWARZ*, P. WALTER, M. SESTO, F. HEHRLEIN and M. SCHLEPPER

Zenirum für Innere Medizin und Zentrum für Chirurgie der Justus Liebig Universität Giessen Kerckhoff-Klinik Bad Nauheim, West Germany

Received 8 January 1980; .

Between December 1970 and June 1978, 833 patients were operated upon for isolated mitral valve replacement (MVR: 361 patients), isolated aortic valve replacement (AVR: 345 patients) and aortic plus mitral valve replacement (DVR: 127 patients) by use of the Björk-Shiley valve. Operative mortality for the entire series was 15%. The five year survival rate, including operative mortality, calculated by the actuarial method was 81.4% for MVR, 73.1% for AVR and 66.8% for DVR. The five year survival rate of operative survivors was 94.9% for MVR, 85% for AVR and 83.2% for DVR. The five year complication-free survival rate (death/removal/embolus-free survival rate) including operative mortality was 69.7% for MVR, 71.8% for AVR and 62.8% for DVR. The postoperative hemodynamic result was evaluated in 58 consecutive patients with AVR and DVR. End-diastolic volume fell after operation from 161 to 104 ml/m2 in AVR and from 156 to 103 ml/m2 in DVR. Ejection fraction increased from 54 to 65% in AVR and from 50 to 61% in DVR.

We conclude: (1) actuarial analysis of prosthesis related death and complications suggests that the Björk-Shiley valve is an excellent choice when using a mechanical device; (2) a significant improvement of left ventricular function results after Björk-Shiley valve implantation.

Key Words: Heart valve replacement • Björk-Shiley prosthesis


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