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Margrete Stenehjem1, Dorte Kinggaard Holm2, Lars Riber1

  • 1Hjerte-, Lunge- og Karkirurgisk Afdeling, Odense Universitetshospital.

Ugeskrift for Laeger
|May 6, 2024
PubMed
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Homografts, initially limited, expanded use in the 1990s due to improved freezing techniques. This review covers the history and experiences of the first Scandinavian homograft biobank.

Area of Science:

  • Vascular Surgery
  • Tissue Engineering
  • Cryobiology

Background:

  • Homografts were historically limited to complex arterial repairs and aortic valve replacements due to degeneration concerns.
  • Advancements in cryopreservation during the 1990s, including rate-differentiated freezing and anti-crystallization agents, mitigated tissue damage.
  • These innovations enabled expanded indications for homografts, such as coronary and lower limb bypasses, with positive midterm outcomes.

Purpose of the Study:

  • To review the historical evolution of homograft utilization in vascular surgery.
  • To summarize the establishment and operational experiences of the first Scandinavian homograft biobank.
  • To highlight the impact of improved cryopreservation techniques on homograft applications.

Main Methods:

Related Experiment Videos

  • Historical literature review of homograft usage and cryopreservation techniques.
  • Analysis of data and experiences from the Scandinavian homograft biobank (founded 2021).
  • Evaluation of midterm clinical outcomes for expanded homograft indications.

Main Results:

  • Homograft use evolved from niche applications to broader vascular reconstructions, including bypass surgeries.
  • Cryopreservation advancements significantly improved homograft viability and reduced crystallization.
  • The Scandinavian homograft biobank provides a centralized resource for tissue banking and research.

Conclusions:

  • Improved cryopreservation has revitalized homograft use in vascular surgery.
  • The Scandinavian homograft biobank represents a significant step in tissue banking infrastructure.
  • Continued research and biobanking are crucial for optimizing homograft applications and patient outcomes.