Key result
PDMAA-grafted PU showed the lowest extent of platelet deposition among the tested polymeric materials in a rabbit ex vivo shunt model, with no trace of aggregate detachment.
Why the study?
Does surface modification of polymeric tubes reduce platelet deposition in a rabbit ex vivo shunt model?
Population
Rabbit ex vivo shunt model
Comparison
Polymeric materials for blood-contacting tubes… vs Comparison among the different polymeric materials
Design
Preclinical
Authors
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Supports evaluation for heparin-free devices; hypothesis-generating from Level 5 animal data.
Does surface modification of polymeric tubes reduce platelet deposition in a rabbit ex vivo shunt model?
PDMAA-grafted PU surfaces significantly reduce platelet deposition compared to standard polymeric materials in an ex vivo shunt model, suggesting potential for heparin-free short-term blood-contacting devices.
Fujimoto et al. (1993) studied Blood compatibility of polymeric materials. Polymeric materials (silicone, PVC, PU, PVA-coated PVC, PDMAA-grafted PU) vs. Compared against each other was evaluated on Platelet deposition and blood compatibility. PDMAA-grafted PU showed the lowest extent of platelet deposition among the tested polymeric materials in a rabbit ex vivo shunt model, with no trace of aggregate detachment.
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