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To strengthen the ethical management of blood samples for scientific research in blood collection and supply institutions, promote the effective use of blood sample resources, and protect the rights and interests of blood donors. Drawing on the experience of the Finnish Red Cross Blood Center biobank which has rich experience in management and recruitment, this paper summarized from the aspects of extensive informed consent, management of sample data, application of biological samples and data, and ethical management of research projects, and put forward the enlightenment to improve the ethical management of blood samples in blood collection and supply institutions, including further improving the construction of ethical laws and regulations, strengthening the ethical review norms of the ethics committee, standardizing the use of informed consent, and enhancing the privacy protection of blood donors.
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【Objective】 To investigate the situation of whole blood collection in Tianjin after COVID-19 prevention and control measures were fully lifted. 【Methods】 The relevant data on whole blood collection of voluntary blood donors in Tianjin 15 days before Spring Festival (2023.01.07-2023.01.21, when China has managed COVID-19 with measures against Class B infectious disease instead of Class A infectious diseases) and 15 days before Spring Festival in 2018 (2018.02.01- 2018.02.15) and 2019 (2019.01.21-2019.02.04) before the breakout of COVID-19 were retrospectively collected and compared. 【Results】 The comparison between the above period in 2023, 2018 and 2019 was as follows: the number of blood donors was 6 124 vs 3 940 vs 4 069; blood collection volume (U) was 9 623 vs 7 378 vs 7 808; the proportion of first-time blood donors, local blood donors and group blood donors was 69.17% (4 236/6 124) vs 65.86% (2 595/3 940) vs 62.05% (2 525/4 069), 59.31% (3 632/6 124) vs 23.27% (9170) vs 18.19% (740/4 069) and 43.42% (2 659/6 124) vs 8.05% (317/2 595) vs 0.15% (6/4 069) (all P<0.05). 【Conclusion】 The adjustment of COVID-19 prevention and control policy has a significant impact on voluntary blood donation, and the corresponding adjustment of blood donor recruitment strategy in blood centers should be conducted to increase the whole blood collection.
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【Objective】 To establish a comprehensive performance appraisal system, in order to promote blood collection, preparation and supply. 【Methods】 The performance reform leading group headed by the central leader was set up to manage the overall work, with performance reform office set up to formulate the central performance reform plan and the target assessment plan. The operation effectiveness was evaluated by comparing the index changes in blood collection, preparation and supply. 【Results】 Compared with before the implementation of performance (from 2018 to 2019, a total of 24 months), except for the total monthly collection of street whole blood, the per person of street monthly blood collection and the total and per person monthly collection of apheresis platelets were significantly increased (P<0.05) during the process of blood collection. The total and per person monthly preparation of cryoprecipitates and virus inactivates plasma were significantly increased (P<0.05) during the process of blood preparation. The total and per person monthly supply of apheresis platelets, cryoprecipitates and virus inactivates plasma were significantly increased (P<0.05) during the process of blood supply. 【Conclusion】 The adjustment and implementation of performance reform program optimized the performance salary distribution system, and the formulation and implementation of target assessment program significantly promoted blood collection, preparation and supply.
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【Objective】 To establish a paper-free system of the total whole blood donation flow in constructing intelligent blood stations, and build digitalized whole blood donation system for practice. 【Methods】 A paper-free whole blood collection system was constructed through information process reforming, system frame designing and data network transportation constructing, and was applied in various blood donation scenario. 【Results】 Fixed blood collection sites carried out 49 063 donations via paper-free information system from November 2022 to July 2023, and 24 822 donations( group blood donation) were conducted via paper-free system from April to July 2022. Compared with the traditional paper-based model, paper-free system is safer, more standardized and more convenient, effectively enhancing the experience of blood donors. 【Conclusion】 The construction of paper-free whole blood collection system effectively enhances the experience of blood donors, improves the safety, accuracy, traceability of the data, and has good social value and economic value, which is worth popularizing.
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【Objective】 To analyze the basic characteristics of whole blood donors from blood stations before and after the outbreak of COVID-19. 【Methods】 After excluding invalid data, data related to the basic characteristics of whole blood donors collected from 26 blood stations in China during 2018 to 2021 were statistically analyzed, including the trend of total whole blood donors, the number of repeated blood donors, the frequency of blood donation, the average age of donors and the recruitment of first-time blood donors. 【Results】 Affected by the epidemic, 8 out of 14 indicators were with large variations, accounting for 57%. The overall growth rate of total whole blood donors during the epidemic was higher than before the epidemic (P<0.05).The number of repeated blood donors has shown an increased trend, with a higher number during the epidemic than before (P<0.05). The frequency of blood donation was lower during the epidemic than before(P<0.05).Average ages of blood donors and female blood donors fluctuated widely during the epidemic, both higher than those before the epidemic(P<0.05).The donation rate of first-time blood donors <25 years old and ≥25 years old varied widely and irregularly during the epidemic (both P<0.05). The percentage of first-time blood donors fluctuated irregularly during the epidemic, with overall percentage lower than that before the epidemic(P<0.05). 【Conclusion】 Whole blood donors from 26 blood stations increased after the outbreak of COVID-19, and some indicators in certain areas showed significant fluctuations during the epidemic.
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A Fibrina Rica em Plaquetas (PRF) é caracterizada por sua abrangente aplicabilidade na Odontologia. Neste sentido, a venopunção é uma etapa fundamental para sua obtenção. Tal procedimento consiste na identificação das veias superficiais, localizadas na região da fossa antecubital dos membros superiores, para que através da utilização do sistema a vácuo de coleta seja obtido o sangue venoso do paciente. O objetivo deste trabalho é realizar um guia prático abordando cada etapa que compreende a coleta sanguínea para produção do PRF permitindo sua reprodutibilidade de forma segura e eficiente.
Platelet Rich Fibrin (PRF) is characterized by its wide applicability in Dentistry. In this sense, venipuncture is a fundamental step towards obtaining it. Such procedure consists of the identification of superficial veins, located in the region of the antecubital fossa of the upper limbs, so that through the use of the vacuum collection system, the patient's venous blood is obtained. The objective of this work is to carry out a practical guide covering each step that comprises the blood collection for the production of the PRF allowing its reproducibility in a safe and efficient way.
Subject(s)
Veins , Blood Specimen Collection , Dentistry , Platelet-Rich FibrinABSTRACT
Unpaid blood donation is the important way of clinical blood supply. The blood collection environment of blood stations mainly includes mobile blood collection vehicles, blood donation rooms and other mobile forms or fixed places to recruit blood donors and collect blood. During the process of blood collection, in addition to the individual organism of the blood donor, different blood collection sites have certain impact on the quality of the whole blood collected from the donor and the adverse reactions in blood donors. To further investigate the distribution characteristics of the collected whole blood, improve blood quality and reduce adverse reactions, we reviewed relevant studies worldwide to analyze the population characteristics, advantages and disadvantages in different blood collection places, which will help establish different blood collection sites as blood stations and increase the amount of collected blood and improve blood quality.
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Background: The coronavirus disease 2019 (COVID-19) pandemic affected blood supplies globally. Mobile blood drive campaigns halted, and voluntary blood donations reduced, challenging available blood supplies. Furthermore, fears of virus transmission led to deferrals of elective surgeries and non-urgent clinical procedures with noticeable declines in blood donations and transfusions. Aims: We aimed to assess the effect of the COVID-19 pandemic on the number of blood donations and transfusions across the country by blood product type across various hospital departments. Materials and Methods: A retrospective descriptive study was conducted to determine the impact of the COVID-19 pandemic on blood services in 34 tertiary hospitals in Nigeria, comparing January to July 2019 (pre-COVID-19) to January to July 2020 (peri-COVID-19). Data were collected from the country's web-based software District Health Information System, Version 2 (DHIS2). Results: A 17.1% decline in numbers of blood donations was observed over the study period, especially in April 2020 (44.3%), a 21.7% decline in numbers of blood transfusions, especially in April 2020 (44.3%). The largest declines in transfusion were noted in surgery department for fresh frozen plasma (80.1%) [p = 0.012] and accident and emergency department transfusion of platelets (78.3%) [p = 0.005]. The least decline of statistical significance was observed in internal medicine transfusions of whole blood (19.6%) [p = 0.011]. Conclusions: The COVID-19 pandemic significantly affected the numbers of blood donations and transfusions in Nigeria. Strengthening blood services to provide various blood components and secure safe blood supplies during public health emergencies is therefore critical.
Subject(s)
Blood Donors , Blood Transfusion , Blood Specimen Collection , Long Term Adverse Effects , COVID-19ABSTRACT
【Objective】 To investigate the environmental pollution of blood collection and supply institutions by using matrix-assisted laser desorption ionization time-of-flight mass spectrometry (MALDI-TOF MS) and evaluate its application value. 【Methods】 Colonies of air from blood donation sites, skin puncture sites of blood donors, platelet storage boxes, platelet collection equipment, object surfaces of related experimental consumables and cuff surfaces of staff after disinfection were collected, and typical colonies after cultivation were selected for microbial identification by microbial mass spectrometry and then compared with bacteria results detected in blood components from May 2017 to May 2021. 【Results】 Aseptic growth, the number of colonies ≤4.0 CFU/ dish, and the number of colonies > 4.0 CFU/dish accounted for 21.20%, 62.20% and 16.60%, respectively. The qualified rate from high to low was platelet storage box, bacteria settling in the air of blood donation room after disinfection, platelet collection equipment, skin puncture site of blood donors after disinfection, the surface of platelet consumables and the surface of medical staff's overalls. After disinfection, the blood donors' skin puncture sites were compared with other collection sites, and the t values were 2.0371, 1.508, 2.109, 1.961 and 1.778, respectively, with no significant difference (P>0.05). Thirty cases of bacterial contamination of blood components were detected from May 2017 to May 2021, among which the detection rate of apheresis platelets was the highest, and the t values were 1.731 and 2.272, relative to the contamination frequency of erythrocytes and plasma bacteria (P>0.05), while the t value was 2.875, relative to concentrated platelets, with significant difference (P<0.05). 【Conclusion】 Bacterial contamination of blood components mostly come from air bacteria settling, blood donors' arms and skin after disinfection, and surfaces of related equipment and materials. Therefore, it is of clinical significance to conduct strict disinfection of working sites, establish disinfection monitoring methods and formulate disinfection hygiene standards in blood stations.
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【Objective】 To explore the optimization of blood testing strategies for voluntary blood donors in military blood centers. 【Methods】 From January 2017 to December 2020, the testing results of five serological indicators of voluntary blood donors from our center were collected via the blood transfusion management system . The positive NAT results of HBV, HCV and HIV, as well as the unqualified serological indicators, including the unqualified rate over the years, unqualified rate of military/civilian blood donor, reactive rate of dual-ELISA-reagent or one-ELISA-reagent etc., were retrospectively analyzed. 【Results】 The ratio of military blood donors to civilian blood donors in our center was 1: 4 during 2017~2020. The total unqualified rate of blood testing indicators of military blood donors was ALT>anti-HCV>HBsAg>HIV antigen/anti-HIV>anti-TP>NAT, and that of civilian blood donors was HBsAg > anti-TP > ALT > anti-HCV > HIV antigen/anti-HIV > NAT. The total unqualified rate of HBsAg, anti-HCV and anti-TP in our center decreased year by year, the HIV antigen/anti-HIV fluctuated, and the ALT increased year by year (P<0.01). The ALT deferral rate among military blood donors was the highest, accounting for 65.85%(594/902) of the donation deferral. The reactive rate of dual-ELISA-reagent to HBsAg, anti-HCV, HIV antigen/anti-HIV and anti-TP in civilian blood donors were 72.87%, 33.02%, 16.56% and 67.67%, respectively (P<0.05). Among the 123 668 ELISA negative samples during 2017~2020, 56 cases of HBV DNA(+ ) were detected by NAT, including 3 cases of military blood donors. 【Conclusion】 The current blood screening strategy of military blood centers can basically guarantee the safety of blood use in clinical. For military blood donors, ALT deferral, caused by ALT results that are higher than the ALT threshold, was the main reason for blood scrapping. Strengthening the promotion and implementation of NAT, as well as adjusting the critical value of ALT is of positive significance for reducing the risk of blood transfusion-transmitted diseases and the waste of blood sources, thereby improving the safety and security level of the clinical blood supply for the troops, promoting the treatment capabilities of officers and soldiers, and even improving the combat effectiveness of the troops.
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In order to solve the difficulties and challenges in the implementation of the original blood distribution and collection regulations caused by the expansion of hospital area, the extension of blood transfer time, the changeability of blood transfer environment, and the strain of personnel due to the increase of workload, as well as to ensure the accuracy of the information throughout blood remote verification and distribution and the safety of clinical blood transfusion, , Shanghai experts related to clinical transfusion and blood management had made a systematic study on the applicable scope and management rules of remote verification of blood distribution and collection, and formulated this Expert Consensus combined with the development status of digital, intelligent and remote communication technologies, so as to provide corresponding guidance for clinical medical institutions in line with the changes in reality.
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【Objective】 To investigate the voluntary blood donation status across China under COVID-19 epidemic in 2020 and the corresponding countermeasures, so as to provide reference for blood center staff. 【Methods】 A questionnaire of Survey of Blood Collection and Supply under COVID-19 Epidemic in 2020 was issued by Blood Donor Mobilization Committee of Chinese Blood Transfusion Association to conduct the data survey on blood collection and supply institutions nationwide. 【Results】 The valid data of 115 cities were collected, and detailed data of whole blood and platelet collection, clinical blood consumption, and measures taken to ensure clinical blood use under COVID-19 epidemic from 2019 to 2020 were obtained. The total volume of whole blood collection in the 115 blood supply institutions in 2020 (13 262 724.36 U)decreased by 4.83% compared with the same period in 2019(13 935 131.5 U), and the total units of platelet collection(1 582 494.5 U)was basically the same as that in 2019(1 581 139.5 U). The total clinical consumption of RBCs from the 115 blood banks in 2020(14 257 441.67 U)decreased by 3.68% compared with that in 2019(1 4801 404.19 U), and the total clinical consumption of platelets(1 738 546.42 U)was basically the same as that in 2019(1 731 037.70 U). With the support of governments at all levels, blood banks have basically guaranteed the clinical blood supply under the epidemic by organizing group blood donation for emergency, making appointments for blood donation, recruiting regular blood donors by phone and text messages, strengthening media publicity and launching haemovigilance. 【Conclusion】 The government attaches great importance to blood safety in public emergencies and plays a leading role. Making appointments for blood donation, recruiting regular blood donors through telephone and text messages and strengthening media publicity play an important role in emergency blood donation. Blood banks should cooperate closely with hospitals to coordinate emergency management of clinical blood, and took various measures to broaden sources and reduce transfusions, so as to effectively guarantee clinical blood supply during the epidemic.
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@#Blood collection tubes containing separator gel are widely used in many clinical laboratories because of easy to use, convenience and several other advantages. However, they are not void of limitation. We describe an unusual case with a floating separator gel in the primary blood collection tube. The blood sample was collected into a BD Vacutainer SST II Advance tube, from a 51 years old man admitted for community acquired pneumonia and had history of hyperproteinaemia. Inappropriate positioning of the separator gel was observed after centrifugation, whereby the separator gel floated above the serum. Detection of abnormal separator gel floatation pattern in this patient’s sample before analysis had prevented potential technical problem and production of erroneous result caused by aspiration of separator gel. The limitation of blood collection tube with separator gel especially in patients with hyperproteinaemia should be made aware among laboratory personnel and physicians.
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【Objective】 To analyze and characterize the trend of blood collection and supply in Tianjin from 2010 to 2019, so as to provide references for respective working plans in Tianjin Blood Center. 【Methods】 Through the blood information management system, the issued amount of various blood components from Tianjin Blood Center from 2010 to 2019 was statistically analyzed; the number and respective data of blood donors in Tianjin in recent 10 years were sorted out and analyzed. 【Results】 From 2010 to 2019, the amount of issued blood components in Tianjin Blood Center increased year by year, with an average annual growth rate of 3.22%(×100%). The utilization rate of blood components in clinical increased year by year, reaching 99.99%(642 240.2/642 250.2)by the end of 2019.The consumption of platelets and cryoprecipitated coagulation factor increased rapidly, accounting for 8.89%(57 111.0/642 250.2)and 2.65%(16 989.0/642 250.2), respectively. In recent 10 years, a total of 1 473 172 blood donors have donated blood voluntarily, and the number increased steadily. Among the blood donors, those aged 18-35 took up the largest proportion, reaching 79.13%(116 5548/1 473 172). The ratio of male to female was about 3∶1, with male blood donors accounting for the vast majority.The main blood donors were students, staff and workers. In 2018, the blood donation rate in Tianjin was only 12.2‰, which lagged behind provincial capital cities and economically developed areas in terms of blood collection units per capita and other indicators. 【Conclusion】 Although blood collection and supply in Tianjin is generally developing scientifically and reasonably, the current situation is still very serious.It is necessary to formulate and improve blood donation strategies according to actual situations. The data in this study is helpful inguiding advance planning, overall construction and scientific development of future blood collection and supply in Tianjin.
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【Objective】 To evaluate the quality of platelet concentrates prepared by two different blood collection bags, so as to provide references for the development of high-quality platelet preparation. 【Methods】 Platelet concentrates were prepared using buffy coating from the whole blood collected by conventional and optimized single-use blood collection bags with leukoreduction filter, respectively. The volume of whole blood collected was 400 mL, and 60 bags in total. They were divided into group A (conventional collection bags, n=30), and the size of buffy coating pouch was 15 cm×12 cm; group B (optimized collection bags, n=30), and the size of buffy coating pouch was 11 cm×9 cm. 【Results】 There were significant differences between group A and group B in the amount of red blood cells contamination, platelet content, and platelet yielding rate (P<0.05), which were (2.62±0.57)×109/mL vs (1.37±0.35)×109/mL, (4.41±0.31)×1010/mL vs (6.21±0.63)×1010/mL, and (55.03±0.06)% vs (79.23±0.09)%, respectively. 【Conclusion】 The buffy coating pouch with the size of 11 cm×9 cm can produce better platelet concentrates, thus improves the safety and efficacy of clinical blood transfusion.
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【Objective】 To explore the application value of narrative nursing in blood collection nursing. 【Methods】 The quantitative questionnaire covering three periods, i. e. prior to narrative nursing intervention, January to June 2019 and July to December 2019, was designed. The pre-, 6-month-post-, and 12-month-post-intervention differences of 10 medical and nursing staff were scored by 100 donors, concerning active listening, reflective writing skill, empathy skill, communication skill and professionalism. 980 valid questionnaires out of 1 000 were returned and analyzed statistically, with P0.05). After 12 months of narrative nursing, active listening, reflective writing, empathy skill, communication skills and professionalism increased to 97.46%, 96.44%, 97.97%, 98.73% and 99.24%, respectively, and all items increased significantly (P<0.01). 【Conclusion】 The empathy between medical staff and blood donors as well as the lack of humanistic care during the blood collection nursing could be promoted by the application of narrative nursing, which is helpful for providing high-quality nursing service for blood donors.
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【Objective】 To investigate and analyze the current situation of the human resources as well as blood collection and supply of blood banks of Zhejiang Province, so as to understand the problems existing in the development of human resources and put forward suggestions. 【Methods】 Questionnaires were issued to Blood Center of Zhejiang Province, municipal central blood stations, and county-level central blood banks to investigate the relevant data in 2015 and 2019. Meanwhile, some data were obtained through the Zhejiang Blood Management Information System (BIS3.0), symposiums, and querying medical service data. Statistical analysis was carried out. 【Results】 Among the 28 blood banks, filled the questionnaires, 927 personnel were in accordance with the authorized strength, accounting for 62.26% (927/1 489), and 1069 health technicians, accounting for 71.519% (1 060/1 489). From 2015 to 2019, the annual growth rate of human resources in blood banks was 2.02%, lower than the annual growth rate of whole blood collection volume 4.83% and the annual growth rate of clinical blood supply (red blood cell) 4.82%, lagging behind the annual growth rate of 6.55%, 8.71% and 12.36% in the number of diagnoses, inpatients and surgeries in the hospitals across the province. The average annual growth rate of doctors and nurses in blood banks was 0.17% and 1.67%, lower than that of licebsed doctors and registered nurses of the province, which was 6.78% and 8.27%, respectively. 【Conclusion】 With the development trend of blood collection and supply, the personnel allocation and the proportion of health technicians of blood banks across Zhejiang Province is insufficient. It is suggested to establish a manpower allocation standard suitable to the business volume, give priority to properly solvement of the current employment, strengthen training, and improve the efficiency of physical examination consultation, testing and phlebotomy positions.
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【Objective】 To evaluate the influence of establishing " blood station-hospital" information management system, based on the concept of Internet, on blood supply and use. 【Methods】 Blood information management system was established in our blood station, and connected to 21 secondary and above hospitals with blood storage function in Maoming to achieve interconnection and timely observation and recording of blood collection, supply and use. The working intensity, blood appointment, incidence of adverse reactions of clinical blood transfusion and satisfaction rate of clinical blood consumption before (April 2017 to March 2018) and after (April 2018 to March 2019) the application of the blood station-hospital information system were compared. 【Results】 In the same period before and after the implementation of blood station-hospital information system, the blood volume (U) collected was 78 249 vs 87 044.5, and the total blood supplied (U) was 225 276.5 vs 249 303, with growth rates at 11.24% and 10.67%, respectively; The average daily working intensity (s) of blood supply staff was 68.68±4.13 vs 41.71±3.76 (P<0.01), and average daily area (m2) was 9.82±3.51 vs 3.31±3.49 (P<0.05). The appointment time of clinical blood by telephone (s) was 110.34±6.79 vs 56.38±4.18 (P< 0.01), by network was 28.55±2.27 vs 13.48±2.76 (P<0.01); The incidence of transfusion adverse reactions was 0.035% (11/31 250) vs 0.012% (5/42 314) P<0.05); The satisfaction rates of clinical blood consumption were 85.71% (18/21) vs 100% (21/21) (P<0.01). 【Conclusion】 The implementation of blood station-hospital information system improved the efficiency of blood collection and supply in blood stations, and reduced the work intensity of blood supply staff. It is beneficial to reduce the incidence of adverse reactions of clinical blood transfusion and improve the satisfaction rate of blood consumption.
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【Objective】 To evaluate the impact of COVID-19 epidemic prevention and control on blood collection and supply, so as to accumulate experience for future similar public events. 【Methods】 The annual inventory before Spring Festival holiday, the supply of red blood cells and apheresis platelets during Spring Festival (from New year′s Eve to lunar January 6th) and the collection and supply units 3 months after the Spring Festival (the lunar January 7th to April 8th) during 2017 to 2020 were analyzed to evaluate the impact of the epidemic on blood collection, supply and inventory management. 【Results】 The inventory and its proportion in 2020 decreased to 14 594 U and 23.89%, compared with those in 2018 (16 095 U, 26.34%) and 2019 (16 301 U, 26.68%), with significant differences (P<0.05). The COVID-19 epidemic(3-month-post Spring Festival in 2019 and 2020) reduced the blood collection in urban areas(28 613 U and 19 901 U) and group donation (17 443 U and 5 332 U), but rasied blood collection in towns (43 184 U and 50 963 U). The clinical blood consumption in year 2017, 2018, 2019 and 2020 was 80 339 U, 79 359 U, 87 581 U and 74 986 U, respectively, decreasing due to the epidemic (P<0.05), with a small amount(229 U) of red blood cell discarding owing to expiration. The collection and supply of apheresis platelets were minimally affected by the epidemic. 【Conclusion】 The epidemic had a direct/indirect impact on blood collection, blood supply and inventory management, except for apheresis platelets collection and supply. It suggests that the characteristics of COVID-19 prevention and control measures can be used as references for future precise organization and targeted recruitment of blood resources in case of the similar emergencies. Close communication with clinical departments contributes to the safeguard of emergency transfusion and the prevention of blood expiration.
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【Objective】 To explore the effects of blood routine parameters on the peripheral blood hematopoietic stem cell collection of healthy donors, and predict collection timing based on these parameters. 【Methods】 The blood routine parameters pre-donation and the total number of mononuclear cells post-donation of 249 donors who applied blood cell separator to collect peripheral blood hematopoietic stem cells in our hospital from January 2018 to August 2020 were collected. Taking total nucleated cells of circulating blood per litre as the main evaluation index, and its collection with blood routine parameters pre-collection was analyzed. The relevant influencing factors were analyzed using multiple linear regression analysis. The blood routine parameters of healthy donors who donated peripheral blood hematopoietic stem cells in our hospital from September 2020 to October 2020 were substituted into the equation to obtain the predicted values, which were then compared with the actual values obtained from actual product using t test for verification. 【Results】 The analysis showed that the parameters of Hb, RBC, Hct, leukocyte count, neutrophil, lymphocyte, monocyte and Plt were statistically correlated with the total number of mononuclear cells of circulating blood per liter volume (P<0.05). There was a linear relationship between lymphocyte, monocyte, Plt and leukocyte count and the total number of mononuclear cells of circulating blood per liter. The total number of mononuclear cells of circulating blood per liter was set to (Y), and the variables such as lymphocyte (X1), monocyte (X2), Plt (X3), leukocyte count (X), and neutrophil were used as dependent variables for multiple linear regression, and the equation was: Y=9.814+ 3.131X1+ 1.666X2+ 0.020X3+ 0.124X4. There was no statistical difference between the predicted value and the calculated value (P>0.05). 【Conclusion】 The blood routine parameters of lymphocyte, monocyte, platelet count and leukocyte count of donors before collection can effectively predict the collection efficiency, therefore help predict the collection time.