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Unusual Events in Blood Donation B. Samuelsen, B. Aagaard, J. Jorgensen

Unusual Events in Blood Donation B. Samuelsen, B. Aagaard, J. Jorgensen. Betina Samuelsen M.D. Regional Transfusion Centre Dept. Of Clinical Immunology Aarhus University Hospital, Skejby Hospital Denmark. Materials. March - December 2003 Donations: 41,274 Unusual events: 2,406

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Unusual Events in Blood Donation B. Samuelsen, B. Aagaard, J. Jorgensen

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  1. Unusual Events in Blood DonationB. Samuelsen, B. Aagaard, J. Jorgensen Betina Samuelsen M.D. Regional Transfusion Centre Dept. Of Clinical Immunology Aarhus University Hospital, Skejby Hospital Denmark

  2. Materials • March- December 2003 • Donations: 41,274 • Unusual events: 2,406 • Occurrence /1,000 donations 58

  3. Groups of unusual events • The groups consisted of the following unusual events:

  4. Groups of unusual events • The groups consisted of the following unusual events:

  5. All groups

  6. All groups Occurrence of the 4 main groups

  7. Needle injury

  8. Needle injury • Donors with needle injury divided according to age and gender given as % of all donations with the same age and gender I

  9. Needle injury • Unusual events: • Haematoma: 73 % • Gender: • More women than men experienced a needle injury • Age: • In women occurrence increased with age

  10. Vasovagal reaction

  11. Vasovagal reaction • Donors with vasovagal reactions divided according to age and gender given as % of all donations with the same age and gender

  12. Vasovagal reaction • Unusual events: • Most of the vasovagal reactions were mild (83 %) • Gender: • More women than men had vasovagal reactions • Age: • More frequent occurrence in young donors

  13. Low Hb concentration • Donors with low Hb conc. divided according to age and gender given as % of all donations with the same age and gender.

  14. Low Hb concentration • Gender: • More women than men had a low Hb concentration • Age: • Occurrence increased in women age 18-49, • and decreased in women > 50 years (3-1 %)

  15. Difficult veinsAmong 403 donors with difficult veins 94 % wanted to stay in the donor file • Comments • Donors are highly motivated • However, ought we to accept these donors in spite of the increased risk of an unusual event?

  16. Conclusion 1A registration of all unusual events: • Revealed some unexpected results (the relatively large number of donors with low Hb conc. and difficult veins) • Revealed an exact number of the important/serious complications (needle injury and vasovagal reactions)

  17. Conclusion 2All kinds of unusual events occurred more often in women, and vasovagal reactions occurred especially in young donors Number of needle injuries were low (6 %) • Comments • The number is still unacceptably high • B. Aagaard et al (poster ISBT 2004) have shown a risk of prolonged symptoms in the event of severe complications

  18. Conclusion 3A registration of all unusual events gives a possibility to improve donor safety in a rational way • Comments • Improved needle insertion technique (since 2001) • Well-trained staff • If the Hb conc. is low in the normal range, the bleeding frequency should be lowered • Take care of the donors - make them feel comfortable, and give them plenty to drink and eat

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