ArticlePloS one2021
Cryopreservation moderates the thrombogenicity of arterial allografts during storage.
Article in PloS one, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed, 10 citations in OpenAlex.
- Functional Aspects of Fibrin Structure Alterations by Tranexamic Acid in the Inhibition of Fibrinolysis.Biomolecules · 2026Article
- Cell-dependent antithrombotic effect of tranexamic acid.Frontiers in immunology · 2026Article
- Meso-Rex shunt revisited: are cryopreserved arterial allografts an alternative to autologous venous conduits?Pediatric surgery international · 2025Article
- Multi-Scale Mechanics of Cryopreserved Human Arterial Allografts Across a Six-Month Period.Journal of functional biomaterials · 2025Article
- A Tubular Vena Cava Conduit Used to Lengthen a Kidney Transplant Renal Artery Injured During Organ Procurement.EJVES vascular forum · 2024Article
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Authors and funding
10 authors at 2 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
introductionManagement of vascular infections represents a major challenge in vascular surgery. The use of cryopreserved vascular allografts could be a feasible therapeutic option, but the optimal conditions for their production and use are not precisely defined.
aimsTo evaluate the effects of cryopreservation and the duration of storage on the thrombogenicity of femoral artery allografts.
methodsIn our prospective study, eleven multi-organ-donation-harvested human femoral arteries were examined at five time points during storage at -80°C: before cryopreservation as a fresh native sample and immediately, one, twelve and twenty-four weeks after the cryopreservation. Cross-sections of allografts were perfused with heparin-anticoagulated blood at shear-rates relevant to medium-sized arteries. The deposited platelets and fibrin were immunostained. The thrombogenicity of the intima, media and adventitia layers of the artery grafts was assessed quantitatively from the relative area covered by fibrin- and platelet-related fluorescent signal in the confocal micrographs.
resultsRegression analysis of the fibrin and platelet coverage in the course of the 24-week storage excluded the possibility for increase in the graft thrombogenicity in the course of time and supported the hypothesis for a descending trend in fibrin generation and platelet deposition on the arterial wall. The fibrin deposition in the cryopreserved samples did not exceed the level detected in any of the three layers of the native graft. However, an early (up to week 12) shift above the native sample level was observed in the platelet adhesion to the media.
conclusionsThe hemostatic potential of cryopreserved arterial allografts was retained, whereas their thrombogenic potential declined during the 6-month storage. The only transient prothrombotic change was observed in the media layer, where the platelet deposition exceeded that of the fresh native grafts in the initial twelve weeks after cryopreservation, suggesting a potential clinical benefit from antiplatelet therapy in this time-window.
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