Biology (Dec 2020)

The Effects of Pre-Storage Leukoreduction on the Conservation of Bovine Whole Blood in Plastic Bags

  • Brena Peleja Vinholte,
  • Rejane dos Santos Sousa,
  • Francisco Flávio Vieira Assis,
  • Osvaldo Gato Nunes Neto,
  • Juliana Machado Portela,
  • Gilson Andrey Siqueira Pinto,
  • Enrico Lippi Ortolani,
  • Fernando José Benesi,
  • Raimundo Alves Barrêto Júnior,
  • Antonio Humberto Hamad Minervino

DOI
https://doi.org/10.3390/biology9120444
Journal volume & issue
Vol. 9, no. 12
p. 444

Abstract

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Leukoreduction (LR) is a technique that consists of reducing the number of leukocytes in whole blood or blood components that can contribute to decreasing storage lesions and the occurrence of post-transfusion complications. We propose that using a blood bag with pre-storage leukocyte filtration is sufficient for blood conservation under field conditions. Ten healthy Nelore cows were used. Whole blood was sampled from each animal and stored at 2 to 6 °C in CPD/SAG-M (citrate phosphate dextrose bag with a saline, adenine, glucose, mannitol satellite bag) triple bags (Control) and in CPD/SAG-M quadruple bags with a leukocyte filter (Filter). At baseline and after 7, 14, 21, 28, 35, and 42 days (D0, D7, D14, D21, D28, D35, and D42, respectively), complete hematological, blood gas, and biochemical evaluations were determined. The filtered bag removed 99.3% of white blood cells from cattle blood, and the entire filtration process was performed in the field. There was a reduction in the number of red blood cells (RBCs) in both groups from D14 onward, with a decrease of 19.7% and 17.1% at D42 for the Control and Filter bags, respectively. The hemoglobin (Hb) concentration had variation in both groups. Potassium, pO2, pCO2, and sO2 increased, and sodium, bicarbonate, and pH decreased during storage. The filtered bag was efficient in removing white cells from cattle whole blood and could be used under field conditions. Blood stored after LR showed differences (p 2, higher sO2). Further experimental studies are required to prove that blood without white cells results in a decrease in transfusion reactions in cattle.

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