Key result
Aspirin and heparin both significantly reduced acute platelet deposition in a baboon ex vivo shunt model at 2.5 hours compared to controls, with no difference between the two treatments.
Why the study?
Does aspirin or heparin reduce acute platelet deposition in a baboon ex vivo shunt model with vascular grafts?
Population
Baboon ex vivo shunt model with two grafts exposed to a flow rate of 25 mL/min
Comparison
Aspirin or heparin vs Controls (no aspirin or heparin)
Design
Preclinical
Follow-up
2 1/2 hours
Authors
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Should not change human antithrombotic practice; leaves open translation of baboon graft findings to clinical use.
Does aspirin or heparin reduce acute platelet deposition in a baboon ex vivo shunt model with vascular grafts?
In a baboon ex vivo shunt model, heparin inhibited platelet deposition on vascular grafts comparably to aspirin, suggesting intraoperative heparinization may suffice without preoperative antiplatelet therapy.
Jens Eldrup‐Jorgensen (1986) studied Small-caliber vascular grafts. Aspirin or heparin vs. Control was evaluated on Acute platelet deposition (Indium 111-labeled platelet uptake). Aspirin and heparin both significantly reduced acute platelet deposition in a baboon ex vivo shunt model at 2.5 hours compared to controls, with no difference between the two treatments.
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