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- W4387458664 abstract "Medical planning for space exploration is based on the “floating” blood bank model to store life-saving red blood cells (RBCs) for emergencies. The “floating” blood bank approach is not sufficient in cases where multiple crewmembers are affected by space anemia. In these situations, long-term preserved RBCs will be vital to guarantee the health and safety of crew members. Transfusable RBC units can only be refrigerated for 42 days or frozen at −80 °C. However, storing frozen RBCs at −80 °C is challenging during the confined condition of long-duration space flight. Freeze-dried, viable RBCs would be an appropriate alternative because they can be stored without cooling, are predicted to have a shelf-life of years, and could be transfused immediately after rehydration. This study explores if freeze-dried RBCs can be rehydrated and transfused in reduced gravity with similar outcomes in recovery as observed at Earth gravity. Experiments analyzing freeze-dried RBC recoveries, rehydration fluid dynamics, and transfusion flow rates were analyzed utilizing an experimental glovebox in simulated 0 g during parabolic flights. RBC recoveries and rehydration fluid dynamics for volumes of 5 mL and 10 mL were the same in simulated 0 g compared to results obtained at 1 g. A clinically acceptable range of flow rates for slow intravenous infusion and rapid fluid resuscitation was possible with the simple augmentation of a hand-pumped clinical pressure bag around a unit of rehydrated RBCs. The results demonstrate the potential feasibility of using freeze-dried cells for healthcare during deep-space exploration." @default.
- W4387458664 created "2023-10-10" @default.
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- W4387458664 date "2023-10-01" @default.
- W4387458664 modified "2023-10-15" @default.
- W4387458664 title "Rehydration outcomes for freeze-dried red blood cells in reduced gravity" @default.
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- W4387458664 doi "https://doi.org/10.1016/j.actaastro.2023.10.006" @default.
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