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December 1, 1989Journal of Cardiac Surgery

Mechanical Factors in the Degeneration of Porcine Bioprosthetic Valves: An Overview

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Why the study?

How do design factors and mechanical stresses affect the degeneration of porcine bioprosthetic valves?

Population

Porcine bioprosthetic valves (PBVs) evaluated via computer-based numerical models

Design

Review

Authors

HSHani N. SabbahMHMohamed S. HamidPSPaul D. Stein

Discussion

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Overview

Does not support immediate design or selection changes; extends computational evidence on stent parameters to degeneration risk.

Structured PICO

How do design factors and mechanical stresses affect the degeneration of porcine bioprosthetic valves?

P
Population
Porcine bioprosthetic valves (PBVs) evaluated via computer-based numerical models
I
Intervention
Design modifications (e.g., increasing stent flexibility, reducing stent height)
O
Outcome
Mechanical stresses, leaflet calcification, and tissue disruptionsurrogate

Computer-based numerical models demonstrate that mechanical stresses contribute to porcine bioprosthetic valve degeneration, and design optimizations like increased stent flexibility can reduce these stresses.

Limitations

  • More research is needed to further elucidate means by which structural integrity can be preserved

Cite This Study

Sabbah et al. (1989) studied this question.

synapsesocial.com/papers/6a1941b1ac919e0a4888d4a9https://doi.org/10.1111/j.1540-8191.1989.tb00294.x
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Stress analysis of porcine bioprosthetic heart valves <i>in vivo</i>1982 · 54 citations
  2. 2Leaflet stress quantification of porcine vs bovine surgical bioprostheses: an <i>in vitro</i> study2021 · 7 citations
  3. 3The analysis of oauses of bioprosthetio valve dysfunction: the example of «UniLine» bioprosthesis2019
  4. 4Modern understanding of mechanisms of bioprosthetic valve structural degeneration: a literature review2018 · 7 citations
  5. 5Pathology of Substitute Heart Valves: New Concepts and Developments1994 · 85 citations