Quantitative anatomic analysis of "stent creep" of explanted Hancock standard porcine bioprostheses used for cardiac valve replacement.

@article{Schoen1985QuantitativeAA,
  title={Quantitative anatomic analysis of "stent creep" of explanted Hancock standard porcine bioprostheses used for cardiac valve replacement.},
  author={Frederick J. Schoen and Leonard J. Schulman and Lawrence Harvey Cohn},
  journal={The American journal of cardiology},
  year={1985},
  volume={56 1},
  pages={110-4}
}
The degree of progressive inward deflection of the stent posts ("stent creep") during function of Hancock standard orifice porcine aortic valve bioprostheses is unknown. The present investigation determines, using a quantitative geometric analysis of clinically removed bioprostheses, the contribution of stent creep to progressive reduction in the outflow orifice area of these valves. Fifty-four Hancock standard orifice porcine aortic valve bioprostheses obtained at reoperation or at autopsy of… CONTINUE READING