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. 1976 Jun;21(6):475-82.
doi: 10.1016/s0003-4975(10)63910-0.

Late clinical problems with Beall model 103 and 104 mitral valve prostheses: hemolysis and valve wear

R E Clark, F L Grubbs, R C McKnight, T B Ferguson, C L Roper, C S Weldon

Late clinical problems with Beall model 103 and 104 mitral valve prostheses: hemolysis and valve wear

R E Clark et al. Ann Thorac Surg. 1976 Jun.

Abstract

The purpose of this study was to determine the influence on hemolysis of the spatial orientation of the struts in the Beall mitral valve prosthesis, Models 103 and 104. Thirteen pairs of patients were selected to match struts oriented parallel and perpendicular to the left ventricular outflow tract axis. The average time after operation was 3.73 years. Complete blood counts and relative serum chemistry values were determined.

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