The use of low-profile bioprostheses minimizes complications due to protrusion of the stent into the left ventricular cavity after mitral valve replacement.1,2 Recent experimental work, however, indicates that excessive reduction of the stent height during bioprosthetic manufacture results in an increased stress on the cusps.3 We report the pathologic findings in 6 low-profile Liotta porcine bioprostheses, which seem to confirm these results and suggest a peculiar mode of failure of such devices. © 1988.
Mode of late failure of the low-profile (Liotta) porcine bioprosthesis in the mitral position
A. Milano;
1988-01-01
Abstract
The use of low-profile bioprostheses minimizes complications due to protrusion of the stent into the left ventricular cavity after mitral valve replacement.1,2 Recent experimental work, however, indicates that excessive reduction of the stent height during bioprosthetic manufacture results in an increased stress on the cusps.3 We report the pathologic findings in 6 low-profile Liotta porcine bioprostheses, which seem to confirm these results and suggest a peculiar mode of failure of such devices. © 1988.File in questo prodotto:
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