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  1. Article ; Online: Use of O RhD-negative red blood cells: A nationwide, prospective audit.

    Ilmakunnas, Minna / Salmela, Katja / Kivipuro, Tiia / Sareneva, Hannele / Sainio, Susanna

    Vox sanguinis

    2022  Volume 117, Issue 11, Page(s) 1279–1286

    Abstract: Background and objectives: Despite declining transfusion rates, overuse of O RhD-negative red blood cells (RBCs) risks the secure supply of this limited resource. A nationwide prospective audit was performed in Finland to understand the clinical use and ...

    Abstract Background and objectives: Despite declining transfusion rates, overuse of O RhD-negative red blood cells (RBCs) risks the secure supply of this limited resource. A nationwide prospective audit was performed in Finland to understand the clinical use and inventory management of O RhD-negative units. Our aim was to identify areas where policy changes could help alleviate the shortage of O RhD-negative RBCs.
    Materials and methods: The use of every O RhD-negative unit in Finland during a period of 1 month was reviewed. For each issued unit (n = 1105), unit age, urgency of transfusion, hospital and patient demographics, and specific reasons for issuing O RhD-negative units were recorded.
    Results: Almost half of the O RhD-negative units (n = 529, 47.9%) were issued to non-O RhD-negative patients. Only 22.3% (n = 118) were issued for females under the age of 50. Of the units for ABO-nonidentical transfusion, one-third (32.5%, n = 172) were issued for emergency transfusion, two-thirds (67.5%, n = 357) for non-urgent transfusions. The most common reason for issuing an O RhD-negative unit was inventory management (n = 172, 48.2% of units issued for non-urgent transfusion). Most of these units were issued close to the unit expiry date.
    Conclusion: This nationwide audit revealed that a significant proportion of O RhD-negative RBCs are used inappropriately. Clinicians should be educated on the appropriate use of O RhD-negative RBCs, and blood banks should develop strategies for inventory management to avoid issuing O RhD-negative units purely to prevent outdating.
    MeSH term(s) Female ; Humans ; Erythrocyte Transfusion ; Erythrocytes ; Blood Banks ; Blood Transfusion ; Erythrocyte Count
    Language English
    Publishing date 2022-09-14
    Publishing country England
    Document type Journal Article
    ZDB-ID 80313-3
    ISSN 1423-0410 ; 0042-9007
    ISSN (online) 1423-0410
    ISSN 0042-9007
    DOI 10.1111/vox.13357
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: ABO and D typing and alloantibody screening in marrow samples: relevance to intraosseous blood transfusion.

    Bäckman, Sari / Ångerman-Haasmaa, Susanne / Jousi, Milla / Siitonen, Sanna / Salmela, Katja

    Transfusion

    2018  Volume 58, Issue 6, Page(s) 1372–1376

    Abstract: Background: Blood transfusion through the intraosseous route is gaining popularity in emergency medicine. Pretransfusion peripheral blood (PB) samples are usually not available in these patients, leading to discrepancies in blood group typing and a ... ...

    Abstract Background: Blood transfusion through the intraosseous route is gaining popularity in emergency medicine. Pretransfusion peripheral blood (PB) samples are usually not available in these patients, leading to discrepancies in blood group typing and a possible delay in transferring to group-specific blood products. The aim of this study was to assess the feasibility of ABO and D typing and red blood cell alloantibody screening in marrow (BM) samples.
    Study design and methods: Direct and reverse ABO typing, D typing, and a two-cell alloantibody screen were performed in EDTA-anticoagulated BM samples with standard manual column agglutination techniques. EDTA-anticoagulated PB samples were used as controls.
    Results: The mean age of the study subjects (n = 71) was 47 years (range, 1-82 years). All ABO groups and both D+ and D- types were represented. In all subjects, concordant results were observed for all analyses in BM and PB samples. In 15 (21%) of the samples, a discrepancy of one reaction strength step (1+) was observed in at least one of the analyses (Cohen's weighted κ = 0.993); this did not affect interpretation of the results.
    Conclusion: Blood group typing and alloantibody screening are feasible in BM samples, providing proof-of-concept that intraosseous samples for blood group serologic analyses can be collected from emergency patients before intraosseous blood transfusion. This will enable a timely transfer to group-specific blood products and enable conservation of the valuable universal-donor blood products.
    MeSH term(s) ABO Blood-Group System ; Adolescent ; Adult ; Aged ; Aged, 80 and over ; Blood Grouping and Crossmatching/methods ; Blood Transfusion/methods ; Bone Marrow/immunology ; Child ; Child, Preschool ; Emergency Medical Services ; Humans ; Infant ; Infusions, Intraosseous ; Isoantibodies/analysis ; Middle Aged ; Rh-Hr Blood-Group System ; Young Adult
    Chemical Substances ABO Blood-Group System ; Isoantibodies ; Rh-Hr Blood-Group System
    Language English
    Publishing date 2018-03-01
    Publishing country United States
    Document type Journal Article
    ZDB-ID 208417-x
    ISSN 1537-2995 ; 0041-1132
    ISSN (online) 1537-2995
    ISSN 0041-1132
    DOI 10.1111/trf.14557
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Book ; Thesis: Biochemical studies on ethanol metabolism of Helicobacter pylori

    Salmela, Katja

    1994  

    Author's details Katja Salmela
    Language Undetermined
    Size Getr. Zählung, graph. Darst
    Publishing place Helsinki
    Document type Book ; Thesis
    Thesis / German Habilitation thesis Zugl.: Helsinki, Univ., Diss. : 1994
    ISBN 9529060122 ; 9789529060122
    Database Former special subject collection: coastal and deep sea fishing

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