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Trauma
Lab work targets haemolysis in stored whole blood
Improving the safety and efficacy of whole blood resuscitation from hemorrhagic shock with a novel scavenger protein cocktail
Resuscitation Plus · 2026-10 · Added 1 November 2026
A US-led laboratory study in hamsters found that haemolysis in stored whole blood correlated with worse microvascular flow and more organ injury after shock resuscitation, and pre-treating the blood with an experimental scavenger protein cocktail binding haemoglobin, heme and iron mitigated capillary collapse and tissue injury in moderate- and high-haemolysis blood.
- Study type
- Other
- Design
- Animal laboratory study — haemorrhagic shock and transfusion in hamster dorsal window chamber model
- Participants
- Adult male Golden Syrian hamsters across stored-blood groups with low, moderate or severe haemolysis
- Main finding
- Stored whole-blood haemolysis correlated negatively with haematocrit, microvascular flow and functional capillary density, and positively with organ injury markers and lactate; the scavenger protein cocktail mitigated capillary collapse and tissue injury but caused haemodilution without recovery of haematocrit, pH or lactate to baseline
- Caveat
- Animal model with an experimental additive — a long way from clinical transfusion, and the cocktail's own haemodilution is unresolved
- Bottom line
- Context only
Why it matters in Australia (Medium relevance). Prehospital blood is carried by a handful of Australian services, most don't, and this is early animal work — it informs the stored-blood safety question those programs face rather than anything usable on the road now.
Learning goal
Weigh the risks of haemolysis in stored whole blood when considering prehospital transfusion in major haemorrhage.
More
- Topic: Trauma
- Daily scan: 1 November 2026
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