Transfusion
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Randomized Controlled Trial
Impact of fresh-frozen plasma from male-only donors versus mixed-sex donors on postoperative respiratory function in surgical patients: a prospective case-controlled study.
To reduce the risk of transfusion-related acute lung injury (TRALI), plasma products are mainly made from male donors in some countries because of the lower possibility of alloimmunization; other countries are considering this policy. The advantage of male-only fresh-frozen plasma (FFP) should be examined in a prospective case-control study. ⋯ Our data suggests that the use of FFP derived from male donors may be advantageous for posttransfusion pulmonary function, although PD is also determined by background characteristics.
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Three of four prior studies suggested that warming platelets (PLTs) to 37 degrees C before transfusion into patients with thrombocytopenia gave improved corrected PLT count increments. ⋯ Based on these 5-day-stored autologous radiolabeled PLT recovery and survival measurements, there is no evidence that warming PLTs to 35 degrees C before infusion improves postinfusion PLT viability.
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The purpose of this study was to examine blood component therapy in the treatment of postpartum hemorrhage. ⋯ Among 12,476 deliveries at a major United States medical center with a modern blood bank and readily available blood component therapy, there were no deaths or organ dysfunction as a consequence of severe postpartum hemorrhage.
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Ex vivo storage of red blood cells (RBCS) for transfusions is associated with a "storage lesion," which decreases RBC deformability and increases RBC adhesiveness to vascular endothelium. This may impair microcirculatory flow with deleterious effects on oxygen delivery after transfusion. Previous studies have shown that human RBCs adhere to endothelial monolayers in vitro with prolonged storage and is reduced by prestorage leukoreduction (LR). The objective of this study was to determine whether duration of RBC storage and LR influence RBC adhesion in vivo in capillaries. ⋯ Rat RBCs stored under conditions that closely mimicked clinical transfusion adhere in capillaries. The decreased RBC adherence with LR suggest a direct effect of white blood cells or their byproducts on RBC deformability and/or adhesiveness to microvascular endothelium. Further study will examine the mechanism of adherence and the impact it has on microcirculatory flow and oxygen delivery in the critically ill host.