Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 1.131
Filtrar
Más filtros

Intervalo de año de publicación
1.
Br J Haematol ; 195(4): 507-517, 2021 11.
Artículo en Inglés | MEDLINE | ID: mdl-33877692

RESUMEN

Over the past three decades, cord blood transplantation (CBT) has established its role as an alternative allograft stem cell source. But the future of stored CB units should be to extend their use in updated transplant approaches and develop new CB applications. Thus, CBT will require a coordinated, multicentric, review of transplantation methods and an upgrade and realignment of banking resources and operations. Significant improvements have already been proposed to support the clinical perspective including definition of the cellular threshold for engraftment, development of transplantation methods for adult patients, engraftment acceleration with single cell expansion and homing technologies, personalised protocols to improve efficacy, use of adoptive cell therapy to mitigate delayed immune reconstitution, and further enhancement of the graft-versus-leukaemia effect using advanced therapies. The role of CB banks in improving transplantation results are also critical by optimizing the collection, processing, storage and characterization of CB units, and improving reproducibility, efficiency and cost of banking. But future developments beyond transplantation are needed. This implies the extension from transplantation banks to banks that support cell therapy, regenerative medicine and specialized transfusion medicine. This new "CB banking 2.0" concept will require promotion of international scientific and technical collaborations between bank specialists, clinical investigators and transplant physicians.


Asunto(s)
Bancos de Sangre , Sangre Fetal , Adulto , Aloinjertos , Bancos de Sangre/organización & administración , Bancos de Sangre/tendencias , Conservación de la Sangre/métodos , Trasplante de Células Madre de Sangre del Cordón Umbilical , Criopreservación/métodos , Predicción , Efecto Injerto vs Leucemia , Humanos , Inmunoterapia Adoptiva , Recién Nacido , Medicina de Precisión , Garantía de la Calidad de Atención de Salud , Medicina Regenerativa , Recolección de Tejidos y Órganos , Medicina Transfusional , Resultado del Tratamiento
2.
Br J Haematol ; 194(1): 14-27, 2021 07.
Artículo en Inglés | MEDLINE | ID: mdl-33529385

RESUMEN

Unrelated cord blood (CB) units, already manufactured, fully tested and stored, are high-quality products for haematopoietic stem cell transplantation and cell therapies, as well as an optimal starting material for cell expansion, cell engineering or cell re-programming technologies. CB banks have been pioneers in the development and implementation of Current Good Manufacturing Practices for cell-therapy products. Sharing their technological and regulatory experience will help advance all cell therapies, CB-derived or not, particularly as they transition from autologous, individually manufactured products to stored, 'off-the shelf' treatments. Such strategies will allow broader patient access and wide product utilisation.


Asunto(s)
Bancos de Sangre , Tratamiento Basado en Trasplante de Células y Tejidos/tendencias , Sangre Fetal , Acreditación/normas , Automatización , Bancos de Sangre/economía , Bancos de Sangre/legislación & jurisprudencia , Bancos de Sangre/organización & administración , Bancos de Sangre/normas , Conservación de la Sangre/métodos , Tratamiento Basado en Trasplante de Células y Tejidos/economía , Tratamiento Basado en Trasplante de Células y Tejidos/métodos , Ensayo de Unidades Formadoras de Colonias , Trasplante de Células Madre de Sangre del Cordón Umbilical , Criopreservación/métodos , Europa (Continente) , Femenino , Sangre Fetal/citología , Prueba de Histocompatibilidad , Humanos , Inmunoterapia Adoptiva/métodos , Células Madre Pluripotentes Inducidas/citología , Recién Nacido , Consentimiento Informado , Embarazo , Complicaciones Infecciosas del Embarazo/diagnóstico , Garantía de la Calidad de Atención de Salud , Medicina Regenerativa/métodos , Manejo de Especímenes/instrumentación , Manejo de Especímenes/métodos , Donantes de Tejidos , Obtención de Tejidos y Órganos/métodos , Obtención de Tejidos y Órganos/organización & administración , Obtención de Tejidos y Órganos/normas , Estados Unidos , United States Food and Drug Administration
3.
Transfusion ; 61(5): 1383-1388, 2021 05.
Artículo en Inglés | MEDLINE | ID: mdl-33569779

RESUMEN

BACKGROUND: Platelets are the most commonly discarded blood product in Canada, with the most common cause of in-date product loss being improper storage. Transport containers to maintain temperature and extend acceptable return time may represent a method to reduce wastage. The objective of this study was to evaluate the impact of a validated Platelet Transport Bag (PTB) on platelet wastage. STUDY DESIGN AND METHODS: Thirty-six hospitals with the highest platelet discards were invited to participate in a before-after observational study. Hospitals were instructed to utilize a validated 4-h PTB for clinical situations where immediate transfusion was not planned. Five hospitals audited in-date platelet discards from July 2018 to November 2019 to characterize wastage causes. In-date platelet discard data 12 months before and after the start date for each site were analyzed to determine changes in wastage. RESULTS: Of 36 hospital sites, 16 agreed to participate. Pre- and postdiscards were 277 and 301, respectively, for all sites combined. There were no significant before-after change in wastage rate (+0.05%, p = .51). Fifty discards were included in the detailed audit; the most common reasons were return to the blood bank after more than 60 min outside a PTB (n = 17, 34%) and return in a red cell cooler (n = 10, 20%). CONCLUSION: Implementation of PTB did not improve wastage. Common causes of in-date discards were return after 1 h outside of a PTB and placement in a red cell cooler in error. Further research is required to investigate potential strategies to mitigate in-date platelet wastage.


Asunto(s)
Plaquetas , Conservación de la Sangre , Residuos Sanitarios , Bancos de Sangre/organización & administración , Plaquetas/citología , Canadá , Frío , Hospitales , Humanos
4.
Transfusion ; 61(2): 350-355, 2021 02.
Artículo en Inglés | MEDLINE | ID: mdl-33459378

RESUMEN

The now 5-year collaboration between the Indiana Blood Center, now Versiti Blood Center of Indiana, and The Milk Bank has increased the number of human milk donors, improved the collection and processing of donor milk, and improved awareness of this lifesaving resource. The Indiana Blood Center provides greater visibility for The Milk Bank, creating more opportunities to reach potential donors, and can provide the screening blood test for potential donors to become approved human milk donors. The resources of the multiple locations of the Indiana Blood Center permitted the formation of new milk depots in five different cities and quicker transportation of donated milk through their active courier system. This partnership most importantly has improved awareness for both lifesaving missions to the communities they serve.


Asunto(s)
Bancos de Sangre/organización & administración , Bancos de Leche Humana/organización & administración , Donantes de Tejidos , Adulto , Extracción de Leche Materna , Selección de Donante , Femenino , Humanos , Indiana , Lactante , Leche Humana , Pasteurización , Donantes de Tejidos/psicología , Donantes de Tejidos/provisión & distribución , Transportes
5.
Transfusion ; 61(2): 627-633, 2021 02.
Artículo en Inglés | MEDLINE | ID: mdl-33174258

RESUMEN

BACKGROUND: Buffy coat (BC) platelets (PLTs) have been used globally for many years. In 2004 Canadian Blood Services (CBS) made the decision to transition from PLT-rich plasma (PRP) to BC PLTs. We reviewed the benefits and manufacture process of BC and the implementation challenges involved. STUDY DESIGN AND METHODS: A literature review was performed in the following areas: BC efficacy, donor population shifts, production and good stewardship of PLTs, logistic considerations with overnight holds, advantages of the overnight hold, the CBS experience, licensure and standards, and changes needed to produce BC PLTs in the United States. The aim was to analyze current practice and identify possible actions for blood centers and hospitals. RESULTS: Implementation of BC would offer an additional source of PLTs to address the growing elderly population and the declining apheresis donor base. Substantial logistic, operational, and financial benefits were seen when CBS transitioned to BC with overnight hold. CONCLUSIONS: Buffy coat blood products are widely used throughout the world. Recent conversion from PRP to BC by CBS showed that conversion can be accomplished with planning, communication, and partnership from all stakeholders. In conclusion, BC PLTs are worth serious consideration in the United States, but regulatory barriers in the United States will need to be addressed.


Asunto(s)
Bancos de Sangre/organización & administración , Capa Leucocitaria de la Sangre/citología , Plaquetas , Transfusión de Plaquetas , Donantes de Sangre , Conservación de la Sangre , Canadá , Humanos , Concesión de Licencias , Transfusión de Plaquetas/legislación & jurisprudencia , Transfusión de Plaquetas/normas , Factores de Tiempo , Estados Unidos
6.
Transfusion ; 61(6): 1822-1829, 2021 06.
Artículo en Inglés | MEDLINE | ID: mdl-33634876

RESUMEN

BACKGROUND: Traditionally, during crises the number of new blood donors increases. However, the current coronavirus disease 2019 (COVID-19) pandemic created additional barriers to donate due to governmental prevention measures and increased personal health risks. In this report, we examined how the pandemic affected new donor registrations in the Netherlands, especially among groups with higher risk profiles for severe COVID-19. Additionally, we explored the role of media for blood donation and new donor registrations. STUDY DESIGN AND METHODS: We analyzed new donor registrations and attention for blood donation in newspapers and on social media from January until May 2020, in comparison to the same period in 2017 to 2019. RESULTS: After the introduction of nationwide prevention measures, several peaks in new donor registrations occurred, which coincided with peaks in media attention. Interestingly, people with a higher risk profile for COVID-19 (e.g., due to age or region of residence) were overrepresented among new registrants. DISCUSSION: In sum, the first peak of the current pandemic has led to increased new blood donor registrations, despite the associated increased health risks. Time and future studies will have to tell whether these new donors are one-off 'pandemic' donors or if they will become regular, loyal donors.


Asunto(s)
Donantes de Sangre/provisión & distribución , COVID-19 , Selección de Donante , Adolescente , Adulto , Publicidad , Bancos de Sangre/organización & administración , Bancos de Sangre/normas , Bancos de Sangre/estadística & datos numéricos , Donantes de Sangre/psicología , Donantes de Sangre/estadística & datos numéricos , Seguridad de la Sangre/métodos , Seguridad de la Sangre/estadística & datos numéricos , COVID-19/sangre , COVID-19/epidemiología , COVID-19/patología , COVID-19/prevención & control , Selección de Donante/métodos , Selección de Donante/organización & administración , Selección de Donante/estadística & datos numéricos , Femenino , Humanos , Masculino , Registros Médicos/normas , Persona de Mediana Edad , Motivación , Países Bajos/epidemiología , Periódicos como Asunto , Pandemias , Factores de Riesgo , SARS-CoV-2/fisiología , Índice de Severidad de la Enfermedad , Medios de Comunicación Sociales , Adulto Joven
7.
Vox Sang ; 116(5): 497-503, 2021 May.
Artículo en Inglés | MEDLINE | ID: mdl-33103772

RESUMEN

INTRODUCTION: Numerous concerns regarding maintenance of blood inventory have been raised after SARS-CoV-2 pandemic outbreak. These concerns were based on the experience of blood centres in previous pandemics where shortage of blood components was reported. The present study had tried to understand the impact of SARS-CoV-2 pandemic on blood collection and demand as well as the impact of disaster planning in maintaining an adequate inventory. METHODS: Data related to blood supply and demand were collected retrospectively using blood bank management software for pre-COVID-19 and COVID-19 time period and compared. Strategies adopted and effects of changes in existing disaster plans to maintain an adequate inventory were studied. RESULTS: A drastic fall in the red cell inventory was observed as compared to pre-COVID-19 time period was observed due to disproportionate decrease in blood collection (1/6 to 1/9 of the previous collection) and demand (1/2 of the previous demand). The buffer stock fell gradually over a period of three weeks with cancellation of planned blood donation drives. A buffer stock equivalent to 2-week inventory led to adequate inventory in the initial lockdown periods. Similar fall was observed in the platelet inventory with reduction in the blood collection but almost a proportionate reduction in the platelet demand led to adequate inventory. No increase in wastage was observed for both red cells and platelets during this period. DISCUSSION: A buffer stock of blood and blood components, strict adherence to the transfusion triggers, good coordination with the clinical staff and a prospective review of blood transfusion requests to ensure rational blood transfusion were some of the steps which helped us to successfully maintain transfusion requirements in the initial phases of the COVID-19 pandemic. Use of first-in-first-out policy prevented any wastage due to outdating of blood.


Asunto(s)
Bancos de Sangre/organización & administración , Seguridad de la Sangre/normas , COVID-19/epidemiología , Bancos de Sangre/normas , Donantes de Sangre/provisión & distribución , Seguridad de la Sangre/métodos , Hospitales/normas , Humanos
8.
Vox Sang ; 116(3): 296-304, 2021 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-33165917

RESUMEN

BACKGROUND AND OBJECTIVES: While coronavirus (COVID-19) is not transfusion-transmitted, the impact of the global pandemic on blood services worldwide is complex. Convalescent plasma may offer treatment, but efficacy and safety are not established. Measuring seroprevalence in donors would inform public health policy. Here, we survey blood services around the world to assess the different research programmes related to COVID-19 planned or in progress. MATERIALS AND METHODS: Blood collection services were surveyed in June 2020 to determine whether they were participating in serosurveys or convalescent plasma collection and clinical trials. RESULTS: A total of 48 countries (77% of those contacted) responded. Seroprevalence studies are planned or in progress in 73% of countries surveyed and in all continents, including low- and middle-income countries. Most aimed to inform public health policy. Convalescent plasma programmes have been initiated around the globe (79% of surveyed), about three quarters as clinical trials in high-, middle- and low-income countries. CONCLUSION: Blood services around the world have drawn upon their operational capacity to provide much-needed seroprevalence data to inform public health. They have rapidly implemented preparation of potential treatment when few treatments are available and mostly as clinical trials. At the same time, they must continue to provide blood products for recipients despite challenges of working in a state of emergency. It is important to track and coordinate research efforts across jurisdictions to gain a composite evidence-based view that will influence future practice and preparative strategies.


Asunto(s)
Bancos de Sangre/organización & administración , Seguridad de la Sangre , COVID-19/sangre , COVID-19/terapia , COVID-19/transmisión , Donantes de Sangre , COVID-19/prevención & control , Geografía , Política de Salud , Humanos , Inmunización Pasiva/métodos , Pandemias , Flebotomía , Salud Pública , Estudios Seroepidemiológicos , Encuestas y Cuestionarios , Sueroterapia para COVID-19
10.
Transfus Apher Sci ; 60(5): 103199, 2021 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-34187773

RESUMEN

BACKGROUND: Transfusion safety officers (TSO) function as liaisons between the blood bank and clinical staff, utilizing audits, quality improvement, reviews, communication, education, and general vigilance to enhance transfusion safety. While hospitals in Europe and Canada have long employed TSOs, a majority of institutions in the United States (US) have yet to implement this resource, despite the mounting evidence to support their effectiveness. STUDY DESIGN AND METHODS: An anonymous 20-question survey was administered to 104 hospitals with valid email contact information. Survey questions addressed the presence of a TSO, characteristics, backgrounds, and education of TSOs, the reporting and funding structure of the position, and role responsibilities. RESULTS: 53 responses were received, with 52 surveys completed (51 % response rate). The majority of responding institutions have a patient blood management (PBM) program (n = 40, 77 %) and 33 (63 %) have at least 1 TSO. 61 % of TSOs report an educational background in nursing, with 11 additional unique training backgrounds identified. TSO responsibilities are varied and include quality improvement, education, transfusion safety event analysis, and participation in PBM initiatives. Barriers to implementing a TSO position include lack of resources, financial impediments, and a lack of understanding of the position and its value by administrators and clinicians. DISCUSSION: The results of this survey highlight how TSOs contribute to transfusion safety and PBM and may provide guidance to hospitals interested in implementing a TSO position. It also elucidates the range of TSO responsibilities and approaches that institutions utilize to advocate for, and implement, this position in the US.


Asunto(s)
Bancos de Sangre/organización & administración , Seguridad de la Sangre/normas , Transfusión Sanguínea/normas , Bancos de Sangre/normas , Hospitales , Humanos , Control de Calidad , Encuestas y Cuestionarios , Estados Unidos
11.
Transfus Apher Sci ; 60(3): 103131, 2021 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-33865716

RESUMEN

India has almost 3,000 blood centres collecting more than 11 million units annually. Maintaining blood supply during the COVID-19 pandemic is a huge challenge. We conducted a cross-sectional study by an online survey to analyse the variation of practices across blood centers of India during this pandemic. A total of 196 blood centers completely responded to the online survey. Most of the blood centres who responded were part of Government hospitals (60 %), part of an academic institutes (55.6 %) and were directly supporting a COVID hospital (67.5 %). Almost 95.4 % blood centers reported reduction of blood donation mainly due to lockdown (50 %) and inability to conduct camps (17.3 %). Scheduling blood donations was one of the most difficult to implement strategy for maintaining adequate blood donation (40.2 %). Blood center manpower management was also a challenge and upto 48 % blood centers operated in two batches to ensure social distancing in blood banks and reduce the risk of exposure. Hemato-oncology (36.8 %) and obstetrics (33.7 %) were major utilizer of blood during the pandemic. There were marked variations in use of PPE by blood banks staff as well as strategies adopted while conducting immunohematology tests on COVID-19 positive patients samples. This pandemic has highlighted some of the major limitations of the health services but blood services have risen to the challenge and strived to maintain the blood supply chain while ensuring blood donor and staff safety. The wide variations in the practices adopted highlights the need for uniform guidelines for blood services in future pandemics.


Asunto(s)
Almacenamiento de Sangre/métodos , COVID-19/epidemiología , Bancos de Sangre/organización & administración , Estudios Transversales , Humanos , India/epidemiología , Pandemias , SARS-CoV-2/aislamiento & purificación , Encuestas y Cuestionarios
12.
Transfus Apher Sci ; 60(4): 103207, 2021 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-34353706

RESUMEN

Blood transfusions come with risks and high costs, and should be utilized only when clinically indicated. Decisions to transfuse are however not always well informed, and lack of clinician knowledge and education on good clinical transfusion practices contribute to the inappropriate use of blood. Low and middle-income countries in particular take much strain in their efforts to address blood safety challenges, demand-supply imbalances, high blood costs as well as high disease burdens, all of which impact blood usage and blood collections. Patient blood management (PBM), which is a patient-focused approach aimed at improving patient outcomes by preemptively diagnosing and correcting anaemia and limiting blood loss by cell salvage, coagulation optimization and other measures, has become a major approach to addressing many of the challenges mentioned. The associated decrease in the use of blood and blood products may be perceived as being in competition with blood conservation measures, which is the more traditional, but primarily product-focused approach. In this article, we hope to convey the message that PBM and blood conservation should not be seen as competing concepts, but rather complimentary strategies with the common goal of improving patient care. This offers opportunity to improve the culture of transfusion practices with relief to blood establishments and clinical services, not only in South Africa and LMICs, but everywhere. With the COVID-19 pandemic impacting blood supplies worldwide, this is an ideal time to call for educational interventions and awareness as an active strategy to improve transfusion practices, immediately and beyond.


Asunto(s)
Bancos de Sangre/organización & administración , Transfusión Sanguínea , Procedimientos Médicos y Quirúrgicos sin Sangre , Anemia/terapia , Bancos de Sangre/economía , Pérdida de Sangre Quirúrgica , Seguridad de la Sangre , Transfusión Sanguínea/economía , Infecciones de Transmisión Sanguínea/prevención & control , Procedimientos Médicos y Quirúrgicos sin Sangre/economía , COVID-19 , Toma de Decisiones Clínicas , Países en Desarrollo , Selección de Donante/economía , Medicina Basada en la Evidencia , Femenino , Infecciones por VIH/epidemiología , Infecciones por VIH/prevención & control , Necesidades y Demandas de Servicios de Salud , Humanos , Masculino , Pandemias , Hemorragia Posparto/terapia , Guías de Práctica Clínica como Asunto , Embarazo , Prevalencia , Utilización de Procedimientos y Técnicas , SARS-CoV-2 , Sudáfrica/epidemiología , Medicina Transfusional/educación
13.
Transfus Apher Sci ; 60(4): 103154, 2021 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-33994107

RESUMEN

BACKGROUND: Convalescent plasma (CP) has been used in the past in various pandemics, in particular in H1N1, SARS and MERS infections. In Spring 2020, when ongoing the SARS-CoV-2 pandemics, the Veneto Region (V-R) has proposed setting-up an anti-SARS-CoV-2 CP (CCP) Bank, with the aim of preparing a supply of CCP immediately available in case of subsequest epidemic waves. MATERIALS AND METHODS: Key-points to be developed for a quick set-up of the V-R CCP Bank have been recruitment of donors recovered from COVID-19 infection, laboratory analysis for the biological qualification of the CCP units, including titre of neutralizing antibodies and reduction of pathogens, according to National Blood Centre (CNS) Directives, adaptation of the V-R Information Technology systems and cost analysis. Some activities, including diagnostic and viral inactivation processes, have been centralized in 2 or 3 sites. Laboratory analysis upon preliminary admission of the donor included all tests required by the Italian laws and the CNS directives. RESULTS: From April to August 2020, 3,298 people have contacted the V-R Blood Transfusion Services: of these, 1,632 have been evaluated and examined as first time donors and those found to be suitable have carried out 955 donations, from which 2,626 therapeutic fractions have been obtained, at a cost around 215,00 Euro. Since October 2020, the number of COVID-19 inpatients has had a surge with a heavy hospital overload. Moreover, the high request of CCP therapy by clinicians has been just as unexpected, showing a wide therapeutic use. CONCLUSIONS: The organizational model here presented, which has allowed the rapid collection of a large amount of CCP, could be useful when facing new pandemic outbreaks, especially in low and middle income countries, with generally acceptable costs.


Asunto(s)
Bancos de Sangre/organización & administración , COVID-19/terapia , Defensa Civil/organización & administración , Pandemias , Anticuerpos Neutralizantes/sangre , Anticuerpos Antivirales/sangre , Bancos de Sangre/economía , Donantes de Sangre , Seguridad de la Sangre/métodos , Infecciones de Transmisión Sanguínea/prevención & control , Costos y Análisis de Costo , Selección de Donante/legislación & jurisprudencia , Humanos , Inmunización Pasiva/estadística & datos numéricos , Italia , Modelos Organizacionales , Plasma , SARS-CoV-2/inmunología , Inactivación de Virus , Sueroterapia para COVID-19
14.
Transfusion ; 60 Suppl 1: S28-S34, 2020 02.
Artículo en Inglés | MEDLINE | ID: mdl-32009238

RESUMEN

Replacement blood donations are a major source of blood in KSA. This presentation highlights "the peace time and war experiences," where the voluntary donor potential was tested. THE "PEACETIME EXPERIENCE"-KING SAUD UNIVERSITY STUDENT DONOR DRIVE: This donor drive commenced in 1983 with 13 donors in its first and the annual collection reached 4500 blood units in the academic session 1995-1996, when the student enrollment was around 30,000. In 2018 the enrollment jumped to 120,000 students. If we add the staff and auxiliary personnel, the population of potential voluntary blood donors will be enough to cover the current and future blood needs of King Khalid University Hospital. Unfortunately, this drive did not survive due to administrative and organizational difficulties. THE "FIRST" GULF WAR EXPERIENCE: At the end of 1990, when the Allied Forces started to end the Iraqi occupation of Kuwait, the Saudi Ministry of Health waged a publicity campaign asking healthy individuals to donate their blood. The response was phenomenal, and the blood inventory in blood banks swelled about five- to sevenfold. First-time donors broke the "fear barrier," went through the donation experience, and it is hoped they will return to donate voluntarily. CONCLUSIONS: The major lesson learned from the King Saud University student donor drive and Gulf War experience is the enormous voluntary donor potential in Saudi Arabia. There is a need for forward planning to shift the current partial involuntary donor system to a voluntary system based on nonremunerated donors.


Asunto(s)
Donantes de Sangre/estadística & datos numéricos , Bancos de Sangre/organización & administración , Transfusión Sanguínea , Humanos , Arabia Saudita
15.
Transfusion ; 60(8): 1793-1803, 2020 08.
Artículo en Inglés | MEDLINE | ID: mdl-32510607

RESUMEN

INTRODUCTION: Low-titer group O+ whole blood (LTOWB) is becoming commonly used in massive bleeding resuscitation, but the impact on blood center O+ RBCs has not been studied. This in silico model simulated a variety of different LTOWB production and utilization patterns. METHODS: Collections and distributions data from a large blood collector were scaled to vary the total number of O+ red blood cell (RBC) collections, the O+ RBC collection: import ratio, and the O+ RBC apheresis: whole blood (WB) collection ratio. Daily LTOWB demand was determined by the daily number of LTOWB recipients, average number of LTOWB units transfused per patient, maximum number of LTOWB units a single patient can receive, and seasonality of LTOWB use. LTOWB program factors included the high-titer exclusion %, the LTOWB expiry, and whether LTOWB units were reclaimed as O+ RBC units on the date of expiry. Simulations using unique combinations of the above input parameters were performed. RESULTS: For the 1,224,720 unique combinations of input parameters simulated, the average increase in the fraction of additional O+ RBC units required to meet hospital demand was only 0.02%. Higher daily LTOWB demand resulted in more LTOWB shortages. Increasing the minimum LTOWB inventory threshold reduced LTOWB shortages without increasing the number of required additional RBC units. LTOWB wastage was minimal but was lower with longer LTOWB shelf life or manufacture of RBC units from unused LTOWB on Day 14. CONCLUSION: Implementing an LTOWB program does not have a major impact on the blood collectors' needs for additional RBC units to meet hospital demands.


Asunto(s)
Sistema del Grupo Sanguíneo ABO , Bancos de Sangre , Simulación por Computador , Bancos de Sangre/organización & administración , Bancos de Sangre/normas , Humanos
16.
Transfusion ; 60(5): 889-891, 2020 05.
Artículo en Inglés | MEDLINE | ID: mdl-32208533

RESUMEN

Umbilical cord blood is an important cellular therapy product used for hematopoietic stem cell transplantation, but the US Food and Drug Administration guidance regarding donor screening to reduce the risk of Zika transmission has decreased the number of licensed, eligible cord blood units available for transplantation. There is a crucial need for updated travel risk assessment for Zika virus transmission, validated screening tests for Zika virus in umbilical cord blood, and further research on Zika virus transmissibility due to umbilical cord blood products to ensure that umbilical cord blood and related tissues are safe and available for transplantation.


Asunto(s)
Almacenamiento de Sangre , Bancos de Sangre , Trasplante de Células Madre de Sangre del Cordón Umbilical , Selección de Donante , Trasplante de Células Madre Hematopoyéticas , Infección por el Virus Zika/sangre , Infección por el Virus Zika/epidemiología , Bancos de Sangre/organización & administración , Bancos de Sangre/normas , Trasplante de Células Madre de Sangre del Cordón Umbilical/efectos adversos , Trasplante de Células Madre de Sangre del Cordón Umbilical/métodos , Trasplante de Células Madre de Sangre del Cordón Umbilical/normas , Selección de Donante/organización & administración , Selección de Donante/normas , Femenino , Sangre Fetal/trasplante , Sangre Fetal/virología , Trasplante de Células Madre Hematopoyéticas/efectos adversos , Trasplante de Células Madre Hematopoyéticas/métodos , Trasplante de Células Madre Hematopoyéticas/normas , Humanos , Recién Nacido , Transmisión Vertical de Enfermedad Infecciosa/estadística & datos numéricos , Masculino , Embarazo , Complicaciones Infecciosas del Embarazo/sangre , Complicaciones Infecciosas del Embarazo/virología , Medición de Riesgo , Virus Zika/fisiología , Infección por el Virus Zika/transmisión , Almacenamiento de Sangre/métodos
17.
Transfusion ; 60(5): 947-954, 2020 05.
Artículo en Inglés | MEDLINE | ID: mdl-32176332

RESUMEN

BACKGROUND: Blood donors receiving testosterone replacement therapy (TRT) often require therapeutic phlebotomy due to erythrocytosis. Red blood cells (RBCs) donated by eligible TRT donors are approved for collection and transfusion. This study was aimed at defining the prevalence and demographic determinants of TRT donors at a large USA blood service organization. STUDY DESIGN: Donation data from TRT donors and matched controls was collected from a de-identified electronic donor database across 16 blood centers in 2017-2018. Demographic determinants included race, sex, age, hemoglobin (Hb), body mass index (BMI), mean arterial pressure (MAP), and the frequency of donations in the 2-year period. RESULTS: TRT donors comprised 1.6% of the donor population and produced 2.2% of RBC units during 2018. TRT donors were likely to be middle-aged white or Hispanic men, with high prevalence of obesity (50.8% of TRT donors had BMI ≥30 kg/m2 compared with 36.2% in controls) and intensive donation frequency (1 to 29 donations in 2 years vs. 1 to 12 in controls). TRT donors had significantly (p < 0.0001) higher MAP and Hb compared with controls (MAP 99.9 ± 9.81 vs. 96.5 ± 10.1 mmHg; Hb 17.8 ± 1.44 vs. 15.6 ± 1.37 g/dL). One year of donations was associated with significant decreases in MAP and Hb for TRT donors. CONCLUSIONS: TRT is associated with high prevalence of erythrocytosis and obesity that may explain the intensive donation frequency, high MAP, and Hb. Frequent phlebotomies had a moderately positive effect on blood pressure and Hb levels. Potential implications of TRT on the quality of the RBC products require further evaluation.


Asunto(s)
Donantes de Sangre/estadística & datos numéricos , Terapia de Reemplazo de Hormonas/estadística & datos numéricos , Testosterona/uso terapéutico , Adulto , Anciano , Bancos de Sangre/organización & administración , Bancos de Sangre/estadística & datos numéricos , Donantes de Sangre/provisión & distribución , Estudios de Casos y Controles , Femenino , Humanos , Hipogonadismo/sangre , Hipogonadismo/tratamiento farmacológico , Hipogonadismo/epidemiología , Masculino , Persona de Mediana Edad , Obesidad/sangre , Obesidad/epidemiología , Policitemia/sangre , Policitemia/epidemiología , Prevalencia , Factores Socioeconómicos , Estados Unidos/epidemiología
18.
Transfusion ; 60(12): 2828-2833, 2020 12.
Artículo en Inglés | MEDLINE | ID: mdl-32989778

RESUMEN

BACKGROUND: Arkansas is a rural state of 3 million people. It is ranked fifth for poverty nationally. The first case of coronavirus disease 2019 (COVID-19) in Arkansas occurred on 11 March 2020. Since then, approximately 8% of all Arkansans have tested positive. Given the resource limitations of Arkansas, COVID-19 convalescent plasma (CCP) was explored as a potentially lifesaving, therapeutic option. Therefore, the Arkansas Initiative for Convalescent Plasma was developed to ensure that every Arkansan has access to this therapy. STUDY DESIGN AND METHOD: This brief report describes the statewide collaborative response from hospitals, blood collectors, and the Arkansas Department of Health (ADH) to ensure that CCP was available in a resource-limited state. RESULTS: Early contact tracing by ADH identified individuals who had come into contact with "patient zero" in early March. Within the first week, 32 patients tested positive for COVID-19. The first set of CCP collections occurred on 9 April 2020. Donors had to be triaged carefully in the initial period, as many had recently resolved their symptoms. From our first collections, with appropriate resource and inventory management, we collected sufficient CCP to provide the requested number of units for every patient treated with CCP in Arkansas. CONCLUSIONS: The Arkansas Initiative, a statewide effort to ensure CCP for every patient in a resource-limited state, required careful coordination among key players. Collaboration and resource management was crucial to meet the demand of CCP products and potentially save lives.


Asunto(s)
COVID-19/terapia , Recursos en Salud/provisión & distribución , Accesibilidad a los Servicios de Salud/organización & administración , Pandemias , Asignación de Recursos/organización & administración , SARS-CoV-2/inmunología , Anticuerpos Antivirales/sangre , Arkansas/epidemiología , Bancos de Sangre/economía , Bancos de Sangre/organización & administración , Donantes de Sangre/provisión & distribución , COVID-19/sangre , COVID-19/economía , COVID-19/epidemiología , Planificación en Salud Comunitaria/economía , Planificación en Salud Comunitaria/organización & administración , Trazado de Contacto , Convalecencia , Recursos en Salud/economía , Accesibilidad a los Servicios de Salud/economía , Humanos , Inmunización Pasiva , Colaboración Intersectorial , Pobreza , Asignación de Recursos/economía , Población Rural , Sueroterapia para COVID-19
19.
Vox Sang ; 115(7): 548-554, 2020 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-32364276

RESUMEN

BACKGROUND: In Argentina, with the aim of moving to a safe supportive and inclusive National Blood System, in September 2015 the Ministry of Health stipulated that eligibility criteria for blood donation should only take into account the so-called 'risk practices', focusing on a 'gender-neutral' policy. The aim of this study is to demonstrate the impact of such regulation on the prevalence of STI in the population of blood donors in Argentina, through the analysis of the scientific evidence obtained from 174 074 donors from a large central region of the country, focused on a regional Blood Bank for a 6-year period (pre- and post-entry into force of the regulations). MATERIALS AND METHODS: To analyse the evolution of prevalence rates of STI, two periods of 3 years each were evaluated: The first period (P1) lasted from 16 September 2012 to 15 September 2015 (prior to the entry into force of the law) and the second one (P2) from 16 September 2015 to 15 September 2018 (after the entry into force of the law). RESULTS: A total of 82 838 subjects were enrolled in P1 and 91 236 in P2. The results show a significantly lower prevalence of HCV (P = 0·029), HBV (P = 0·028) and syphilis (P = 0·001) in P2, while no difference was observed for HIV infection (P = 0·60). CONCLUSION: This study evidenced that the implementation of a 'gender-neutral' policy based on individual risk-assessment deferral criteria maintained the safety of blood supply and decreased the prevalence of STI among blood donors.


Asunto(s)
Bancos de Sangre/organización & administración , Donantes de Sangre/estadística & datos numéricos , Infecciones por VIH/epidemiología , Política Organizacional , Sexismo , Sífilis/epidemiología , Adulto , Argentina , Femenino , Humanos , Masculino , Persona de Mediana Edad , Medición de Riesgo
20.
Transfus Apher Sci ; 59(5): 102878, 2020 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-32690366

RESUMEN

The conduct of blood donation drives became difficult amid novel coronavirus disease pandemic and national lockdown. Despite no restriction for the outdoor blood donation drives, voluntary blood donor organizations (VBDOs) and individual donors became apprehensive regarding the possible risk of spread of the infection during blood donation. Various confidence-building measures were taken to decrease this hesitation. Numerous preventive measures were taken at the blood bank and at the donation venue to limit the possible risk of the spread of infection. With the help of these measures, the confidence of the individual blood donors and the VBDOs was restored and multiple blood drives were organized.


Asunto(s)
Bancos de Sangre/organización & administración , Donantes de Sangre , COVID-19/epidemiología , Oncología Médica , Pandemias , Centros de Atención Terciaria , Personal de Salud/educación , Humanos , India/epidemiología , Distanciamiento Físico
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA