Articles with tag: «blood collection»
2022 № 9 Features of national account of donor platelets collection
Based on the analysis of the practice of collection and the volume of units of donor red blood cells, plasma and cryoprecipitate in 13 Russian blood service organizations, it was established:
- volumes of units of 9 received types of erythrocytes differ significantly: H-test of Kruskal-Wallis – 32,071 with a critical value of 15,507 (p < 0,001);
- the volume of red blood cells suspension exceeds the volume of red blood cells suspension mass by 28,8% (p = 0,004);
- removal of the buffy-coat reduces the volume of red blood cells suspension suspension – by 14,8% (p = 0,002);
- leukodepletion does not reduce the volume of red blood cells suspension and mass;
- the volume of washed red blood cells is the most variable (median absolute deviation = 33), since it is determined by an arbitrary amount of saline added to the final product;
- pathogen inactivation does not affect the plasma volume, which allows us to recommend the production of pathogen-reduced cryoprecipitate;
- there is no unequivocal qualification of cryosupernatant plasma as a therapeutic product or a vastage in cryoprecipitate production (out of 12 organizations collected cryoprecipitate, 5 indicated the preparation of cryosupernatant plasma);
- 3 out of 13 participants in the study have already implemented the production of pooled cryoprecipitate – a technology that significantly reduces labor costs and 92% – unproductive consumption of the medical product (p < 0,001);
- the current system for accounting for the volume of red blood cells and plasma collection does not allow estimating the number of prepared therapeutic units;
- it is proposed to account donor red blood cells, plasma for transfusion and cryoprecipitate in units, and plasma for the production of medicines – in liters.
2020 № 5 Blood collection during the period of COVID‑19 infection
We evaluated the work of the Samara Regional Clinical Blood Transfusion Station, the collection and delivery
of blood components in January-April 2019 and 2020 changes in activity at the beginning of the COVID‑19 pandemic
infection. The need for blood components decreased: red blood cells – by 16,7%, platelets – by 13,0%, plasma – by 25,6%, cryoprecipitate – by 32,5%. SOKPSK provides the needs of the region’s healthcare in blood components and preparations, as well as the safety of donors and staff. For this: a) new donor recruitment methods have been introduced; b) plasma donors have been transferred to blood and platelet donors. A common pattern is the reduction in the use of medical technologies that require transfusion of blood components. According to the results of the first 4 decades of work, such a reduction in the Samara region is two time less than in other developed countries.
2021 № 5 Error in the regulation of bacteria screening in donor blood components
We searched for standards for monitoring the sterility of donor blood and blood components. The legal nullity of the “Instructions for the control of the sterility of canned blood, its components, preparations, canned bone marrow, blood substitutes and preservative solutions” was established. For proper sterility control of donor blood and its components, the “Standard for equipping a blood transfusion station (blood center)” (approved by Order of the Ministry of Health of Russia No. 1167n dated October 28, 2020) needs to be amended by replacing the “Bacteriological analyzer for the identification of microorganisms” with “Analyzer of blood cultures“.
2020 № 9 Donor platelets collection in a pandemic of COVID‑19 infection
The work of the Samara Regional Clinical Blood Transfusion Station, the collection and delivery of platelet concentrates in
2018, 2019 and in the first 6 months of 2020 was assessed. The annual demand for platelet concentrates in 2019 increased by 22.9%, and in the first half of 2020 the issue of platelet concentrate decreased by 12.1%, which is associated with a change in treatment work during the period of infection COVID‑19. The proportion of platelets isolated from whole blood in the first half of 2020 decreased from 24.7% (the end of 2019) to 17.4%, (p <0.001). This maneuver made it possible to accept all donors wishing to donate apheresis platelets.
2020 № 6 Blood collection during the period of COVID-19 infection
We searched Google Trends using terms in Russian and English: “coronavirus”, “blood transfusion”, “plasma transfusion”, “donate blood”. Object of study – requests submitted from February 15 to May 25, 2020 in the world, Russia and the USA. Anomalous increase in demand in the USA was revealed corresponding to the booming demand for plasma donors – convalescents of COVID-19: a) for “plasma transfusion” – March 30 – May 2, b) for “donate blood” March 17 – April 7. The studied Russian Google Trends indicators correspond to the reliable work of the blood service, which during the pandemic period solved the main task to provide hospitals with effective and safe components of donated blood. These data provide additional evidence of differences in the scientific validity of blood services in developed countries, and show that Google Trends can serve as a tool to track trends in blood donation.