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A comprehensive ovine model of blood transfusion
Region Östergötland, Anaesthetics, Operations and Specialty Surgery Center, Department of Anaesthesiology and Intensive Care in Linköping. (IMH)ORCID iD: 0000-0003-2888-4111
2014 (English)In: Vox Sanguinis, ISSN 0042-9007, E-ISSN 1423-0410, Vol. 106, p. 153-160Article in journal (Refereed) Published
Abstract [en]

Background

The growing awareness of transfusion-associated morbidity and mortality necessitates investigations into the underlying mechanisms. Small animals have been the dominant transfusion model but have associated limitations. This study aimed to develop a comprehensive large animal (ovine) model of transfusion encompassing: blood collection, processing and storage, compatibility testing right through to post-transfusion outcomes.

Materials and methods

Two units of blood were collected from each of 12 adult male Merino sheep and processed into 24 ovine-packed red blood cell (PRBC) units. Baseline haematological parameters of ovine blood and PRBC cells were analysed. Biochemical changes in ovine PRBCs were characterized during the 42-day storage period. Immunological compatibility of the blood was confirmed with sera from potential recipient sheep, using a saline and albumin agglutination cross-match. Following confirmation of compatibility, each recipient sheep (n = 12) was transfused with two units of ovine PRBC.

Results

Procedures for collecting, processing, cross-matching and transfusing ovine blood were established. Although ovine red blood cells are smaller and higher in number, their mean cell haemoglobin concentration is similar to human red blood cells. Ovine PRBC showed improved storage properties in saline–adenine–glucose–mannitol (SAG-M) compared with previous human PRBC studies. Seventy-six compatibility tests were performed and 17·1% were incompatible. Only cross-match compatible ovine PRBC were transfused and no adverse reactions were observed.

Conclusion

These findings demonstrate the utility of the ovine model for future blood transfusion studies and highlight the importance of compatibility testing in animal models involving homologous transfusions.

Place, publisher, year, edition, pages
Wiley-Blackwell Publishing Inc., 2014. Vol. 106, p. 153-160
National Category
Basic Medicine
Identifiers
URN: urn:nbn:se:liu:diva-145331DOI: 10.1111/vox.12076ISI: 000331086300008PubMedID: 23992472Scopus ID: 2-s2.0-84892890048OAI: oai:DiVA.org:liu-145331DiVA, id: diva2:1185108
Available from: 2018-02-23 Created: 2018-02-23 Last updated: 2018-03-01Bibliographically approved

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  • apa
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