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Effect of local hemostatics on platelet aggregation.
E Solheim1, O G Anfinsen, H Holmsen
1Department of Biochemistry, University of Bergen, Norway.
Summary
Certain hemostatic agents, specifically bovine collagen and bone wax, can activate platelets. Other tested hemostatics like polyorthoester, oxidized cellulose, and gelatin sponge did not show platelet aggregating effects.
Area of Science:
- Biomedical Engineering
- Hematology
- Materials Science
Background:
- Platelets are crucial for hemostasis.
- Natural and synthetic macromolecules can trigger platelet activation and aggregation.
- Understanding hemostatic agent interactions with platelets is vital for clinical safety.
Purpose of the Study:
- To evaluate the platelet aggregating potential of five distinct local hemostatic agents.
- To compare the effects of different hemostatic materials on platelet function.
Main Methods:
- Platelet aggregation was measured using aggregometry.
- The study assessed the response of platelets to hemostatic agents in the presence of agonists like adenosine diphosphate (ADP) and adrenaline.
Main Results:
- Fibrillar bovine collagen induced platelet aggregation with low concentrations of agonists.
- Nonabsorbable bone wax also caused aggregation, but required higher agonist concentrations.
- Bioerodible polyorthoester, oxidized cellulose, and gelatin sponge did not promote platelet aggregation.
Conclusions:
- Bovine collagen and bone wax possess platelet-aggregating properties.
- Polyorthoester, oxidized cellulose, and gelatin sponge appear to be non-thrombogenic in this context.
- These findings have implications for selecting safe and effective hemostatic agents in surgical procedures.