vCJD Initiatives

There is a high probability that vCJD can be transmitted via blood transfusion, with a number of likely cases having been described (see references below). There remains therefore a theoretical possibility that tissue grafts could also be vectors of infection. To this end Tissue Services has introduced and is evaluating a number of steps to reduce or mitigate risk. These are as follows:

Surgical Instruments

Wherever possible, disposable instruments are used in the retrieval of tissues and all subsequent processing within the tissue bank. Where this is not possible advice has been taken on the appropriate washing and sterilisation procedures to minimise risks from prions.

Donor Testing

Tissue Services is currently undertaking a feasibility study for the removal and testing of spleen tissue from deceased donors. There is evidence that vCJD prions become detectable in spleen and other lymphoid tissues before clinical onset of disease.

Tissue Services is the only tissue bank in the UK to undertake spleen testing for vCJD of donors. Use of other lymph reticular and ocular tissues as analytes for testing is under consideration.

Blood Removal from Tissues

Tissue Services has been in the vanguard of research to remove blood and marrow from bone grafts thereby reducing the risk of prion transmission.

References

Title Author Journal Details Year
Evaluation of NaOH treatment of human dura mater implants to obviate Creutzfeldt-Jakob Disease transmission J N Kearney, C Johnson Biomaterials 12: 431-432 1991
Processing of whole femoral head allografts: A method for improving clinical efficacy and safety R Lomas, O DrummondJ N Kearney Cell and Tissue Banking 1: 193-200 2000
Possible transmission of variant Creutzfeldt-Jakob disease by blood transfusion C A Llewelyn, P E Hewitt, R S G Knight, K Amar, S Clousens, J Mackenzie, R G Will Lancet 363: 417-421 2004
Preclinical vCJD after blood transfusion in a PRNP codon 129 heterozygous patient A H Peden, M W Head, D L Ritchie, J E Bell, J W Ironside Lancet 364: 527-529 2004
Health Protection Agency New case of transfusion-associated variant-CJD   CDR weekly 2006:16
Should Deceased Donors be Tested for vCJD? R M Warwick, R Eglin Cell and Tissue Banking 6 (4): 263 - 270 2005
Creutzfeldt-Jakob disease and blood transfusion: results of the UK Transfusion Medicine Epidemiological Review study.

National Order Line:
0845 607 6820

National Fax Line:
0845 607 6819

Tissue Services

Product Quick Links

If you know exactly what product you are looking for, use the quick link drop down below

  
© NHS Blood and Transplant    Privacy | Accessibility | Sitemap | Careers | Cookie Information