Determinantes externos de la disponibilidad de sangre / External Determinants of Blood Availability

El acceso universal a las transfusiones de sangre depende de diversos factores localizados dentro y fuera de los servicios de salud. Motivados por ser este un tema infrecuente, el trabajo tiene el objetivo de analizar desde una perspectiva multidimensional y holística los determinantes externos de la disponibilidad de sangre para las transfusiones. El desarrollo socioeconómico constituye un importante factor dinamizador porque condiciona, de cierta manera, la infraestructura del sistema sanitario e incide sobre los factores epidemiológicos, sociodemográficos y jurídicos. A su vez, estos influyen en la organización de las actividades y la complejidad de la asistencia sanitaria, factores que otorgan un sentido positivo o negativo a la disponibilidad de sangre. Tomarlos en consideración al diseñar las políticas de salud relacionadas con el uso de la sangre permite una mayor precisión en las intervenciones locales que contribuyan a mejorar la seguridad de las transfusiones(AU)

Universal access to blood transfusions depends on a number of localized factors both inside and outside health services. Motivated by being an infrequent topic, this work aims to analyze from a multidimensional and holistic perspective the external determinants of the availability of blood for transfusions. Socio-economic development is an important dynamic factor because it conditions, in a certain way, the infrastructure of the health system and affects epidemiological, sociodemographic and legal factors. In turn, these influence the organization of activities and the complexity of health care, factors that give a positive or negative meaning to the availability of blood. Taking them into consideration when designing health policies related to the use of blood allows greater precision in local interventions that contribute to improving the safety of transfusions(AU)

Serological ineptitude in blood banks: is there an association with sexually transmitted infections? / Inaptidão sorológica em bancos de sangue: existe associação com infecções sexualmente transmissíveis?

Introduction: Sexually transmitted infections (STIs) are a serious public health problem, and some of these infections are also transmitted through blood transfusions. Objective: To identify publications in scientific journals in Brazil and in the world showing if there is an important association between serological inadequacy due to sexually transmitted infections traced in blood and blood products used for medical use. Methods: Systematic review of articles published from 2018 to 2023, using the LILACS, SciELO and PubMed databases, with a concomitant approach to the issues of serological disability and STI. Original studies or review articles in Portuguese, English and Spanish with Brazilian and international data were included. Editorial publications, letter to the editor, letter from the editor or comments on the subject were excluded. Results: The search found 571 articles, of which 106 (18.40%) met the inclusion criteria, that is, Serological disability and STI. In studies with international data, the prevalence of donors with hepatitis C ranged from 0.12 to 4.8%; with hepatitis B, from 1.3 to 8.2%; with HIV, from 0.0021 to 2.5%; with syphilis, from 1.73 to 2.4%; with HTLV, 0.66%; and with Chagas disease, from 0.017 to 2.76%. Among articles with Brazilian data, the prevalence of donors with seroreactive tests for hepatitis C ranged from 0.18 to 1.76%; with hepatitis B, from 0.05 to 7.9%; with HIV, from 0.03 to 0.82%; with syphilis, from 0.37 to 3.51%; with HTLV, from 0.02 to 0.3%, and with Chagas disease, from 0.8 to 0.5%. Conclusion: STIs are rarely discussed in the scientific literature in studies on serological inadequacy. In addition, a minority of articles were with Brazilian data. However, results show that STIs, despite being little discussed in the scientific literature in studies on the subject of serological inadequacy, have statistically significant percentages of seropositivity for STIs. Moreover, hepatitis C and B have a relevant seroprevalence, reaching 8.2% and 4.8%, respectively, in the international scenario. In Brazil, hepatitis B continues to occupy a prominent place with a seroprevalence of up to 7.9%. However, syphilis now holds a very important role, with a maximum percentage of 3.51%. More studies are needed for further reflection: although STIs are little addressed in studies about serological inadequacy in human blood banks, would they contribute to the maintenance and non-reduction of the general frequency of infections transmitted by blood transfusion

Introdução: As infecções sexualmente transmissíveis (IST) são um grave problema de saúde pública e algumas dessas infecções, também, transmitidas por intermédio de transfusões de sangue. Objetivo: Identificar publicações em periódicos científicos no Brasil e no mundo sobre se existe importante associação entre inaptidão sorológica por infecções sexualmente transmissíveis rastreadas em sangue e hemoderivados usados para uso médico. Métodos:Revisão sistemática de artigos publicados no período de 2018 a 2023, usando as bases de dados Literatura Latino-Americana e do Caribe em Ciências da Saúde (Lilacs), Scientific Electronic Library Online (SciELO) e United States National Library of Medicine (PubMed) com abordagem concomitante para os assuntos de inaptidão sorológica e IST. Incluíram-se estudos originais ou artigos de revisão nos idiomas português, inglês e espanhol com dados brasileiros e internacionais. Foram excluídas publicações do tipo editorial, carta ao editor, carta do editor ou comentários sobre o tema. Resultados:A busca localizou 571 artigos dos quais 106 (18,40%) se encaixavam nos critérios de inclusão, ou seja, inaptidão sorológica e IST. Em estudos com dados internacionais, a prevalência de doadores com hepatite C variou de 0,12 a 4,8%; com hepatite B de 1,3 a 8,2%; com HIV de 0,0021 a 2,5%; com sífilis de 1,73 a 2,4%; com HTLV 0,66%; e com doença de Chagas de 0,017 a 2,76 %. Já entre os artigos com dados brasileiros, a prevalência de doadores com exames soro-reatores para hepatite C variou de 0,18 a 1,76%; com hepatite B de 0,05 a 7,9%; com HIV de 0,03 a 0,82%; com sífilis de 0,37 a 3,51%; com HTLV 0,02 a 0,3%, e com doença de Chagas de 0,8 a 0,5%. Conclusão: As IST são pouco abordadas na literatura científica em estudos com o tema inaptidão sorológica. Além disso, uma minoria de artigos era com dados brasileiros. Entretanto, resultados demonstram que, apesar de pouco abordadas na literatura científica em estudos com o tema inaptidão sorológica, as IST possuem percentuais de soropositividade estatisticamente significativos. Além disso, as hepatites C e B possuem soroprevalência relevante, podendo chegar a 8,2 e 4,8%, respectivamente, no cenário internacional. Já no cenário nacional, brasileiro, a hepatite B continua ocupando um lugar de destaque, com soroprevalência de até 7,9%. Todavia, a sífilis passa a ocupar um papel de altíssima relevância, com percentual máximo de 3,51%. São necessários mais estudos para mais reflexão: apesar de as IST serem pouco abordadas em estudos acerca da inaptidão sorológica em bancos de sangue humano, seriam elas contribuintes para a manutenção e a não redução da frequência geral de infecções transmitidas por transfusão sanguínea?

Evaluación de la eficacia en la colecta de plaquetas por un separador celular / Evaluation of the efficacy in the collection of platelets by a cell separator / Avaliação da eficiência da coleta de plaquetas por um separador de células separador de células

La aféresis es el procedimiento más utilizado para la obtención de concentrados plaquetarios de alto rendimiento, calidad y para mejorar las terapias transfusionales en pacientes trombocitopénicos, oncohematológicos,cirugias e incluso, en pacientes con factores clínicos adversos a la refractariedad. Objetivo. Determinar la eficacia de un separador celular en la colecta de plaquetas en un Instituto Nacional de Salud de Lima. Material y métodos. Estudio descriptivo; la muestra fue de 80 concentrados plaquetarios, obtenidos por plaquetoaferesis y utilizando el equipo de separador celular americano. La colecta de plaquetas se realizó en un servicio de Hemoterapia y Banco de Sangre de una institución de salud de Lima, durante los meses de febrero a julio de 2018. La eficacia se realizó evaluando el rendimiento, la eficiencia y el cumplimiento de estándares de calidad aprobados. Uno de los parámetros utilizados fue el recuento de plaquetas y leucocitos residuales, procesados en el analizador hematológico. Resultados. Las evaluaciones fueron: concentración promedio de plaquetas por concentrado plaquetario (rendimiento)= 3,4 x 1011 plaquetas /ml, recuento de leucocitos residuales = 0,07 x 10 6 leucocitos/ml, volumen promedio de sangre procesado = 2480 ml, volumen final promedio = 217,5 ml, eficiencia en la colecta = 56,9 a 63,9 %, el tiempo medio por procedimiento de colecta = 72 minutos. Conclusiones. Los concentrados plaquetarios obtenidos con el procedimiento de plaquetoaferesis cumplen con los estándares de calidad nacional e internacionales, por lo que, se concluye que este procedimiento es eficaz en la colecta de productos de alta calidad que logran la eficacia en la transfusión.

Apheresis is the most widely used procedure to obtain high yield and quality platelet concentrates and to improve transfusion therapies in thrombocytopenic patients, oncohematological patients, surgical patients and even patients with adverse clinical factors to refractoriness. Objective. To determine the efficacy of a cell separator in the collection of platelets in a National Health Institute in Lima. Material and methods. Descriptive study; the sample consisted of 80 platelet concentrates, obtained by plateletpheresis and using American cell separator equipment. The platelet collection was performed in a Hemotherapy and Blood Bank service of a health institution in Lima, during the months of February to July 2018. Effectiveness was performed by evaluating performance, efficiency and compliance with approved quality standards. One of the parameters used was the residual platelet and leukocyte count, processed in the hematological analyzer. Results. The evaluations were: average platelet concentration per platelet concentrate (yield)= 3.4 x 1011 platelets/ml, residual leukocyte count = 0.07 x 10 6 leukocytes/ml, average volume of blood processed = 2480 ml, average final volume = 217.5 ml, collection efficiency = 56.9 to 63.9 %, average time per collection procedure = 72 minutes. Conclusions. The platelet concentrates obtained with the plateletpheresis procedure comply with national and international quality standards, therefore, it is concluded that this procedure is effective in the collection of high quality products that achieve transfusion efficiency.

A aférese é o procedimento mais utilizado para obter concentrados plaquetários de alto rendimento e alta qualidade e para melhorar as terapias transfusionais em pacientes trombocitopênicos, oncohematológicos, cirúrgicos e até mesmo pacientes com fatores clínicos adversos à refratariedade. Objetivo. Para determinar a eficácia de um separador de células na coleta de plaquetas em um Instituto Nacional de Saúde em Lima. Material e métodos. Estudo descritivo; a amostra consistiu de 80 concentrados de plaquetas, obtidos por plaquetaferese e utilizando equipamento separador de células americano. A coleta de plaquetas foi realizada em um serviço de Hemoterapia e Banco de Sangue de uma instituição de saúde em Lima, durante os meses de fevereiro a julho de 2018. A eficácia foi avaliada através da avaliação do desempenho, eficiência e conformidade com os padrões de qualidade aprovados. Um dos parâmetros utilizados foi a contagem residual de plaquetas e leucócitos, processada no analisador hematológico. Resultados. As avaliações foram: concentração média de plaquetas por concentrado de plaquetas (rendimento) = 3,4 x 1011 plaquetas/ml, contagem de leucócitos residuais = 0,07 x 10 6 leucócitos/ml, volume médio de sangue processado = 2480 ml, volume final médio = 217,5 ml, eficiência da coleta = 56,9 a 63,9%, tempo médio por procedimento de coleta = 72 minutos. Conclusões. Os concentrados de plaquetas obtidos com o procedimento de plaquetférese atendem aos padrões de qualidade nacionais e internacionais, portanto, conclui-se que este procedimento é eficaz na coleta de produtos de alta qualidade que alcançam eficiência transfusional.

Análisis de la problemática resultante de los tipos de donación de sangre, producida en el Banco de Sangre de la Seguridad Social en La Paz durante la gestión 2020 / Analysis of the problems resulting from the types of blood donation, produced at the social security Blood Bank in La Paz during the 2020 administration

INTRODUCCIÓN: actualmente la sangre continúa siendo un elemento vital para la vida, su fabricación aún no ha sido optimizada, por lo tanto, solo puede obtenerse a través de donaciones humanas. Por ello, para los Bancos de Sangre, contar con personas de confianza que aporten sangre constituye uno de los principales problemas éticos. Actualmente existen tres tipos de donación de sangre: la donación voluntaria y altruista, la donación de reposición o familiar y la donación remunerada, siendo esta última inaceptable en términos económicos y sanitarios, además de estar prohibida en el marco legal vigente en nuestro país. OBJETIVOS: analizar la problemática de la donación de sangre, haciendo énfasis en los tipos de donaciones que existen en nuestro país, considerando cuál es el tipo de donación más seguro para el receptor y cuáles son los menores de las pruebas de tamizaje inmunoserológico. MATERIALES Y MÉTODOS: se realizó un estudio transversal analítico, retrospectivo, en el que se revisaron las historias clínicas y los formularios electrónicos de trabajo utilizados en la recolección de datos de las donaciones de sangre obtenidas en el Banco de Sangre. de la seguridad social. Para el análisis estadístico se realizó la media y la varianza. RESULTADOS: de un total de 7787 personas que se presentaron a donar sangre, solo 5166 realizaron una donación efectiva. El resto fueron diferidos temporalmente por causas subsanables, 147 fueron diferidos definitivamente por enfermedades e infecciones que pudieran suponer un riesgo para el receptor y en 19 de ellos la extracción de sangre fue difícil por dificultad de acceso venoso. Según el tipo de donaciones, el 52,8 % fueron donaciones solidarias de reposición, el 43,3 % donación exijida y el 3,71 % donación voluntaria. Finalmente, el 68 % del total de las donaciones de sangre provino de hombres. CONCLUIONES: los datos obtenidos demuestran porcentajes muy bajos de donantes voluntarios y valores altos de donantes obligados a donar, muy en relación a países con programas deficientes de donación voluntaria y altruista de sangre.

INTRODUCTION: currently blood is a vital element for life, its manufacture has not yet been optimized, therefore, it can only be obtained through human donations. For this reason, for Blood Banks, having reliable people who provide blood constitutes one of the main ethical problems. There are currently three types of blood donation: voluntary and altruistic donation, replacement or family donation, and paid donation, the latter being unacceptable in economic and health terms, as well as being prohibited under the current legal framework in our country. OBJECTIVES: analyze the problem of blood donation, emphasizing the types of donations that exist in our country, considering what is the safest type of donation for the recipient and what are the minors of immunoserological screening tests. MATERIALS AND METHODS: this was a retrospective, analytical cross-sectional study, in which, we reviewed clinical histories and electronic work forms used in the collection of data on blood donations obtained in the Blood Bank. of social security. For statistical analysis we performed the mean and variance. RESULTS: in a total of 7787 people who presented themselves to donate blood, only 5166 made an effective donation. The rest were temporarily deferred for rectifiable reasons, 147 were permanently deferred due to diseases and infections that could cause a risk to the recipient and in 19 of them it was difficult to draw blood due to difficult venous access. According to the type of donations, 52.8 % were solidarity replacement donations, 43.3 % required donation, and 3.71 % voluntary donation. Finally, 68 % of the total blood donations came from men. CONCLUSIONS: the data obtained show very low percentages of voluntary donors and high values of required donors, these results are in accordance with countries with deficient voluntary and altruistic blood donation programs.

Implementation of a patient blood management program based on a low-income country-adapted clinical decision support system

ABSTRACT Introduction: Patient blood management (PBM) programs are associated with better patient outcomes, a reduced number of transfusions and cost-savings The Clinical Decision Support (CDS) systems are valuable tools in this process, but their availability is limited in developing countries This study assesses the feasibility and effectiveness of an adapted CDS system for low-income countries. Methods: This was a prospective study of the PBM program implementation, in a 200-bed tertiary hospital, between February 2019 and May 2020. Outcome measures were red blood cell (RBC), fresh frozen plasma (FFP) and platelet unit transfusions, the transfusion of a single unit of red blood cells and an RBC adequacy index (RAI). Results: Comparing the post-PBM program era with the pre-PBM system era, there was a decrease in red blood cell transfusions (p = 0.05), with an increase in single unit red blood cell transfusions (p = 0.005) and RAI (p < 0.001). Conclusions: The PBM programs, including electronic transfusion guidelines with pre-transfusion medical auditing, was associated with improved transfusion practices and reduced product acquisition-related costs.

Calidad de vida relacionada con la salud de personas con hemofilia en el noreste de Brasil / Quality of life related to the health of people with hemophilia in Northeast Brazil

Introducción: La hemofilia se caracteriza por la ocurrencia de hemorragias frecuentes y afecciones del aparato locomotor graves en los pacientes que causan daños físicos, sociales y psicológicos y afecta directamente su calidad de vida relacionada con la salud. Objetivo: Evaluar la calidad de vida de personas con hemofilia en el noreste de Brasil. Métodos: Estudio epidemiológico transversal cuantitativo realizado con 13 personas con hemofilia de un Banco de Sangre en el noreste de Brasil. La recolección de datos se realizó mediante la aplicación de un cuestionario sociodemográfico y clínico y de Haem-A-Qol, utilizado para evaluar la calidad de vida de las personas con hemofilia. Los valores brutos y medios se calcularon en general para todos los dominios y luego para cada dominio para que pudieran mostrarse. Resultados: Se obtuvo un promedio total de 30,94 en relación a los diez dominios evaluados. Los dominios con los promedios más altos fueron "salud física" con 49,23 y "afrontamiento" con 35,89 y con el promedio más bajo fue "planificación familiar". Conclusiones: Los participantes de la investigación tienen una calidad de vida insatisfactoria en relación con la salud física y el afrontamiento y, satisfactoria en relación con las relaciones y la sexualidad(AU)

Introduction: Hemophilia is characterized by the occurrence of frequent bleeding and serious musculoskeletal conditions in patients that cause physical, social and psychological damage and directly affect their health-related quality of life. Objective: To evaluate the quality of life of people with hemophilia in the northeast of Brazil. Methods: Quantitative cross-sectional epidemiological study conducted with 13 people with hemophilia from a Blood Bank in northeastern Brazil. Data collection was performed by applying a sociodemographic and clinical questionnaire and Haem-A-Qol, used to assess the quality of life of people with hemophilia. Raw and mean values were calculated overall for all domains and then for each domain so that they could be displayed. Results: A total average of 30,94 was obtained in relation to the ten domains evaluated. The domains with the highest averages were "physical health" with 49,23 and "coping" with 35,89 and with the lowest average was "family planning". Conclusions: The research participants have an unsatisfactory quality of life in relation to physical health and coping, and satisfactory in relation to relationships and sexuality(AU)

Advances in the recruitment and loyalty of blood donors: A critical outlook over the Brazilian scenario / Avanços no recrutamento e fidelização de doadores de sangue: um olhar crítico sobre o panorama brasileiro

The growing need for more stringent methods of safe blood transfusion has engendered blood banks in Brazil. The transfusion appears, then, as an alternative path for blood-related pathologies and their components. Followed by the enforcement of altruistic principles, blood donation has become resistant within society due to its myths and prejudices. Thus, the implementation of public policies became more evident in tracing the social profile of blood donors, and the public power started regulating, supervising and controlling the rational use of blood and blood products. This way, the indices of blood donation in the Unified Health System (SUS) result from various means of interaction with both the potential donor and with the loyal donor, through digital media, school lectures, symposia, congresses and visual media. This process hitched the recruitment to the peculiarities of potential donors, mostly promoted by Health professionals. There is a need to gradually increase such measures to facilitate the donation process, adapting it to the reality of these people, to amplify the number of loyal donors (AU)

A crescente necessidade de métodos mais rígidos de segurança na transfusão sanguínea engendrou os bancos de sangue no Brasil. A transfusão aparece, então, como via alternativa para tratamento de patologias relacionadas ao sangue e aos seus componentes. A partir da aplicação de princípios altruístas, a doação de sangue tornou-se mais resistente pela sociedade, devido aos mitos e preconceitos. A aplicação de políticas públicas, dessa forma, tornaram-se mais evidentes para traçar o perfil social do doador de sangue, e o poder público passou a regulamentar, fiscalizar e controlar o uso racional de hemoderivados e hemocomponentes. Nesse sentido, os índices de doação de sangue no Sistema Único de Saúde (SUS) são resultados de diversos meios de interação tanto com o potencial doador quanto com o fidelizado, por intermédio de mídias digitais, palestras em centros escolares, simpósios, congressos e meios audiovisuais. Esse processo atrelou o recrutamento às peculiaridades dos potenciais doadores, promovido principalmente pelos profissionais da saúde. Surge a necessidade de aumentar, cada vez mais, tais medidas de modo a facilitar e flexibilizar o processo de doação, adaptando-o, assim, à realidade dessas pessoas, para amplificar o número de doadores fidelizados (AU)

COVID-19 pandemic and blood transfusion services: The impact, response and preparedness experience of a tertiary care blood center in southern Karnataka, India

Abstract Introduction With the outbreak of COVID-19 and its containment measures, blood centers faced a huge challenge in balancing blood demand and supply and devising a preparedness plan to withstand the uncertain situation. This study assesses the effect of the COVID-19 pandemic on blood transfusion services and discusses the appropriate mitigation strategies adopted. Methods We analyzed our center's blood transfusion services during the first half-period of the pandemic (Y3) and non-pandemic years 2018(Y1) and 2019(Y2) in two-quarters Q1 (pre-lockdown), from January to March and Q2 (post-lockdown), from April to June. The blood donation variables, the packed red blood cells (PRBCs) demand and the utilization pattern were compared between pandemic (Y3) and non-pandemic years (Y1 and Y2) in each quarter. The mitigation strategy adopted at every step of the transfusion service is highlighted. Results During post-lockdown (Q2) of the pandemic year (Y3), the blood donation was majorly by repeat donors (83%) from the in-house site (82.5%). Furthermore, the proportion of outdoor donation, deferral, blood collection, demand and issue demonstrated a significant drop of 50%, 32.6%, 33%, 31.8% and 32.3%, respectively, in comparison to Q2 of the non-pandemic years (Y1 and Y2), with a statistically significant difference for surgical and hemorrhagic indications (p < 0.05). Coping strategies, such as blood donor education and motivation using e-platforms emphasizing eligibility during the pandemic, staggering of donor in-flow, postponement of elective surgeries and donor and staff' COVID-19 safety assurance, were followed. Conclusion The timely adoption of coping strategies played a crucial role in the better handling of shortcomings at our center's blood transfusion services caused by the COVID-19 pandemic.

Prevalencia de marcadores infecciosos y factores asociados en donantes de un banco de sangre peruano / Prevalence of infection markers and associated factors in donors of a peruvian blood bank

RESUMEN Se buscó determinar la prevalencia de marcadores infecciosos en donantes de un banco de sangre en Perú y valorar si las variables sociodemográficas del donante se asocian con la presencia de estos marcadores. Se realizó un estudio transversal analítico en 5942 donantes de un banco de sangre durante el 2018. Se determinó la positividad a inmunodeficiencia humana (VIH), hepatitis B (VHB), hepatitis C (VHC) y HTLV I-II; además de sífilis y enfermedad de Chagas. La prevalencia de VIH fue 0,81%, VHB 6,19%, VHC 0,12%, HTLV I-II 0,66%, enfermedad de Chagas 2,76% y sífilis 1,73%. Diversos factores sociodemográficos se asociaron con la positividad de marcadores infecciosos. El tipo de donación predominante fue no voluntaria (96%) y el 53% presentó historia de donación previa. Las prevalencias de marcadores infecciosos de VIH, VHB, enfermedad de Chagas y sífilis en los donantes de sangre fueron altas comparadas con otros países de la región.

ABSTRACT We aimed to determine the prevalence of infection markers in donors of a Peruvian blood bank and to assess whether donor sociodemographic variables are associated with the presence of these markers. An analytical cross-sectional study was carried out in 5942 donors of a blood bank, whose data was collected during 2018. Positivity to human immunodeficiency virus (HIV), hepatitis B virus (HBV), hepatitis C virus (HCV) and HTLV I-II was determined, in addition to syphilis and Chagas disease. The prevalence of HIV was 0.81%; for HBV it was 6.19%; for HCV, 0.12%; for HTLV I-II, 0.66%; for Chagas disease, 2.76% and for syphilis it was 1.73%. Several sociodemographic factors were associated with infection markers positivity. The predominant donation type was non-voluntary (96%) and 53% had history of previous donation. The prevalence of infection markers for HIV, HBV, Chagas disease and syphilis in blood donors was high compared to other countries in the region.

Correlação entre os métodos sorológico e molecular para detecção do HIV na triagem de doadores de sangue na Fundação HEMOPA / Correlation between sorological and molecular methods for HIV detection in blood donor screening in HEMOPA Foundation

Objetivo: Buscar a correlação entre os métodos sorológico e molecular para detecção do HIV na triagem de doadores de sangue na Fundação HEMOPA. Métodos: Realizou-se a busca das amostras reagentes para HIV, referente aos anos de 2015 a 2019 no Sistema de Banco de Sangue da Fundação HEMOPA. Para análise estatística, utilizou-se o programa SPSS para a comparação das medianas dos valores de S/CO com NAT detectável e indetectável. O teste de X² foi utilizado para apontar a correlação dos valores de S/CO com a presença do RNA viral. Resultados: Obtiveram-se para o estudo 910 amostras reagentes, na qual 75,60% (688/910) positivas (S/CO >1,2) e 24,40% (222/910) inconclusivas (S/CO 0,8-1,2). A mediana de S/CO das amostras detectáveis foi de 503,93 e das indetectáveis foi de 1,22 no NAT. Conclusão: Estabelecemos que na triagem sorológica-molecular há uma correlação estatisticamente significante, na qual a presença de anticorpos e/ou antígenos no teste ARCHITECH HIV Ag/Ab Combo orienta a predição de viremia no NAT.

Objective: Search for the correlation between serological and molecular methods of HIV detection in screening blood donors at the HEMOPA Foundation. Methods: The HIV reagent samples were searched for the years 2015 to 2019 in the Blood Bank System of the HEMOPA Foundation. For statistical analysis, the SPSS program was used to compare the medians of the S / CO values with detectable and undetectable NAT. The X² test was used to point out the correlation between S / CO values and the presence of viral RNA. Results: 910 reagent samples were obtained for the study, in which 75.60% (688/910) positive (S / CO> 1.2) and 24.40% (222/910) inconclusive (S / CO 0.8) -1.2). The median S / CO of the detectable samples was 503.93 and the undetectable was 1.22 in NAT. Conclusion: We established that in serological-molecular screening there is a statistically significant correlation, in which the presence of antibodies and / or antigens in the ARCHITECH HIV Ag / Ab Combo test guides the prediction of viremia in NAT.

Optimization of red blood cell unit storage during SARS-COV-2 Pandemic: adopting new strategies to ensure supply in a decentralized blood bank in Brazil

ABSTRACT Introduction: As coronavirus disease-2019 (COVID-19) spread worldwide and social restrictions were intensified, difficulties in blood supply were expected to result in a shortage of blood donors, logistic issues and a change in blood consumption. Consequences could be detrimental to the meeting of the blood supply demand, especially in a decentralized blood bank in the State of São Paulo responsible for providing blood to more than 100 hospitals, mostly of the public health system. Aiming to minimize negative effects and focusing on maintenance of the blood supply, a different approach was discussed and adopted. Materials and methods: Briefly, strategies were related to monitoring and promoting measures to achieve a positive RBC unit balance. Thus, the number of donors, transfusions, RBC unit inventory, RBC unit loss and RBC units within up to 5 days from the expiration date were evaluated. Results: Several strategies were adopted to ensure sufficient availability of RBC units: blood donation was improved with social media and extra blood collections, a restrictive transfusion protocol was implemented, a new logistic process to use RBC units closer to the expiration date was established and non-isogroup transfusions were avoided. Conclusion: Altogether, described strategies were crucial to optimize blood storage during the pandemic. Investing in monitoring and logistics contributed to a positive RBC unit balance and conserving these strategies could be useful.

Prevalencia de Infección por Trypanosoma Cruzi en donantes de un banco de sangre de Boyacá, Colombia / Prevalence of Trypanosoma cruzi infection in donors from a blood bank in Boyacá, Colombia

Resumen Introducción: La Enfermedad de Chagas también conocida como Tripanosomiasis americana es un problema de salud pública. Se calcula que en el mundo hay entre 6 y 7 millones de personas infectadas por Trypanosoma cruzi, la mayoría de ellas en América Latina. Objetivo: Identificar la prevalencia de infección por Trypanosoma cruzi en donantes de un banco de sangre del departamento de Boyacá 2016-2018. Materiales y métodos: Estudio descriptivo retrospectivo realizado en 25.920 donantes de sangre del departamento de Boyacá. La fuente de información fue secundaria. Se determinó la prevalencia de la infección por Trypanosoma cruzi y se compararon según sexo, grupo etario y tipo de donante a través de análisis de frecuencias. Resultados: Se evaluaron 9187 donantes durante el año 2016; 8517 en el 2017 y 8216 en el 2018, de los cuales 56,1% eran de sexo femenino y 43,9% masculino. La prevalencia de la infección por Trypanosoma cruzi fue 0,17 % en la tamización y 0,08 % con las pruebas confirmatorias de las cuales el 70,0% eran mujeres, el 85,0% donantes voluntarios por primera vez, el rango de edad en el que se presentó mayor prevalencia de este marcador serológico fue de 41 a 50 y de 51 a 65 años con un 35,0% cada uno . La prevalencia de la infección de Chagas presentó asociación estadísticamente significativa con la edad (p < 0,05). Conclusiones: Los bancos de sangre resultan ser una de las fuentes de información disponibles para monitorear el comportamiento de la enfermedad de Chagas y evaluar la toma de decisiones en salud pública, teniendo en cuenta que la enfermedad se caracteriza de manera asintomática y sin compromiso clínico en la mayoría de los casos.

Abstract Introduction: Chagas Disease, also known as American Trypanosomiasis, is a public health problem. It is estimated that in the world there are between 6 and 7 million people infected with Trypanosoma cruzi, most of them in Latin America. Objectives: To identify the prevalence of Trypanosoma cruzi infection in donors from a blood bank in the department of Boyacá 2016-2018. Materials and methods: Retrospective-descriptive study carried out in 25,920 blood donors from the department of Boyacá (Colombia). The source of information was secondary. The prevalence of Trypanosoma cruzi infection was determined and compared according to sex, age group and type of donor through frequency analysis. Results: 9187 donors were evaluated during 2016; 8,517 in 2017 and 8,216 in 2018, of which 56.1% were female and 43.9% male. The prevalence of Trypanosoma cruzi infection was 0.17% in screening and 0.08% with confirmatory tests of which 70.0% were women, 85.0% first-time volunteer donors, the range of The age at which the highest prevalence of this serological marker was found was 41 to 50 and 51 to 65 years with 35.0% each. The prevalence of Chagas infection showed a statistically significant association with age (p <0.05). Conclusions: Blood banks turn out to be one of the sources of information available to monitor the behavior of Chagas disease and evaluate decision-making in public health, taking into account the characteristics of the disease in which the majority of cases they are asymptomatic and without clinical compromise.

HCAM la historia de un grande / HCAM the story of a great

Prólogo. La obra recopiló los hitos históricos, las acciones en gestión y la visión futura de las Unidades Médicas, Administrativas y de Enfermería, en homenaje a los 50 años de función del Hospital de Especialidades Carlos Andrade Marín como ícono de la Seguridad Social del Ecuador, entre el periodo 1970 a diciembre 2020. Cada autor registró el título entrelazado un pensamiento, previo a la cronología de los hechos suscitados en los servicios brindados en beneficio de los pacientes que se atendieron en esta casa de salud. La obra se clasificó en capítulos por Unidades Médicas: Críticas, Clínicas, Quirúrgicas, Administrativas y de Enfermería, se incluyeron tablas, figuras, producción médica, patologías, cambios de técnicas o procedimientos y sustentó su accionar con citas textuales y referen-cias bibliográficas. Además, se narraron mejoras continuas transmitidas de los ilustres y legados maestros, especialistas médicos por varias generaciones, en conjunto con el personal de salud con vocación de servicio, en una reflexión profunda con mensajes vivos de su accionar. En las modalidades de publicación se realizaron aportes de visión nacional e internacional en los ámbitos asistenciales, administrativos, docente, de investigación y producción científica de alto nivel del contexto y naturaleza del emblemático hospital. Finalmente, se agradece a los funcionarios y ex trabajadores que colaboraron durante el proceso de construcción de la obra, así como a ex colaboradores que motivaron aportes de experiencias y la apreciación personal.

Prologue. The work compiled the historical milestones, management actions and future vision of the Medical, Administrative and Nursing Units, in tribute to the 50 years of function of the Carlos Andrade Marin Specialty Hospital as an icon of the Social Security of Ecuador, between 1970 and December 2020. Each author recorded the title intertwined with a thought, prior to the chronology of the events that took place in the services provided for the benefit of patients who were treated in this health center. The work was classified in chapters by Medical Units: Critical, Clinical, Surgical, Administrative and Nursing, and included tables, figures, medical production, pathologies, changes in techniques or procedures, and supported his actions with textual quotations and bibliographical references. In addition, continuous improvements were narrated and transmitted from the illustrious and legacy masters, medical specialists for several generations, together with the health personnel with vocation of service, in a deep reflection with living messages of their actions. In the publication modalities, contributions of national and international vision were made in the care, administrative, teaching, research and scientific production of high level of the context and nature of the emblematic hospital. Finally, we would like to thank the employees and former workers who collaborated during the construction process, as well as former collaborators who contributed with their experiences and personal appreciation.

Células madre mesenquimatosas y sus diferentes usos / Mesenchymal stem cells and their different uses

Introducción: las células madre mesenquimatosas (CMM) se diferencian de diversos tipos celulares para la regeneración de tejidos, esta característica sumada con la versatilidad del antígeno leucocitario humano (HLA) representan una eficaz alternativa para el tratamiento de enfermedades con tejidos deteriorados. Se pueden obtener a partir de médula ósea, cordón umbilical (CU) y sangre fetal. Objetivo: analizar los tipos de diferenciación de las CMM, sus métodos de extracción y su relación con bancos de sangre de cordón umbilical (BSCU), a fin de demostrar la eficacia de las CMM, en patologías que impliquen alteración de algún tejido u órgano. Metodología: se revisaron varias publicaciones en español e inglés en Pubmed, Clinicalkey y Science Direct; desde 2013 hasta 2020. Se usaron los términos sangre fetal, células madre mesenquimatosas, trasplante de Células Madre de Sangre del Cordón Umbilical y bancos de sangre. Con dicha información se redactó un panorama amplio sobre las células mesenquimales y como estas participan en diversas áreas de la salud, con un énfasis importante en sus usos terapéuticos y lo referente a de donde provienen. Conclusión: a través de la pluripotencialidad de las CMM, se han podido emplear en múltiples patologías pues reestablece tejidos o líneas celulares exitosamente. Así mismo, los recursos para su obtención son claves en la tolerancia de los pacientes, por lo cual una gran opción para su obtención es el CU, que actualmente cuenta con bancos exclusivos para esto. (AU)

Introduction: mesenchymal stem cells (MSC) differentiate into multiple cell types for tissue regeneration, this characteristic added with the versatility of human leukocyte antigen (HLA) represent an effective alternative for the treatment of diseases with damaged tissues. They can be obtained from bone marrow, umbilical cord (UC), and fetal blood. Objetive: analyze the types of differentiation of MSC, their extraction methods and their relationship with umbilical cord blood banks (UCBB), in order to demonstrate the efficacy of MSC, in pathologies that involve alteration of a tissue or organ. Methodology: several publications in Spanish and English in Pubmed, Clinicalkey and Science Direct were reviewed; from 2013 to 2020. The terms fetal blood, mesenchymal stem cells, Umbilical Cord Blood Stem Cell transplantation and blood banks were used. With this information, a broad overview of mesenchymal cells and how they participate in various areas of health was drawn up, with an important emphasis on their therapeutic uses and where they come from. Conclusion: through the pluripotentiality of MSC, they have been used in multiple pathologies as it successfully re-establishes tissues or cell lines. Also, the resources for obtaining it are key in the tolerance of patients, which is why a great option for obtaining it is the UC, which currently has exclusive banks for this.

Significación de los marcadores infecciosos para identificar portadores de hepatitis B en donantes de sangre / Significance of hepatitis B surface antigen, IgM/IgG core antibody and hepatitis B virus DNA in blood donors

Resumen Introducción: La identificación de portadores del virus de la hepatitis B en donantes de sangre es imperativo para evitar la transmisión de la enfermedad a través de transfusiones sanguíneas. Objetivo: Determinar si los donantes de sangre con resultados positivos de los marcadores serológicos HbsAg y anti-HBc eran portadores de ADN del virus de la hepatitis B. Métodos: Se recolectaron 12 745 muestras de seis bancos de sangre ecuatorianos, las cuales fueron analizadas con pruebas serológicas para identificar los marcadores infecciosos HBsAg, anti-HBc, anti-HBs mediante prueba ELISA automatizada. Todas las muestras positivas para uno, dos o los tres marcadores fueron analizadas con técnica molecular para determinar la presencia de ADN viral. Resultados: Se identificó que 27.5 % de las muestras reactivas solo a anti-HBc y 100 % de las muestras con resultados positivos de HBsAg/anti-HBc-IgM/IgG presentaron ADN del virus de la hepatitis B (p = 0.001). Conclusiones: La elección de los marcadores de infección y los métodos de detección definen los resultados. Es importante la realización de dos pruebas serológicas y una molecular para identificar a los portadores del virus de la hepatitis B y evitar su transmisión.

Abstract Introduction: Identification of hepatitis B virus carriers in blood donors is imperative in order to avoid transmission of the disease via blood transfusion. Objective: To determine if blood donors with positive results for serological markers HBsAg and anti-HBc were hepatitis B virus DNA carriers. Methods: 12,745 samples were collected from six Ecuadorian blood banks and analyzed for HBsAg, anti-HBc and anti-HBs infectious markers by automated ELISA. All samples that tested positive for one, two or all three markers were analyzed with molecular techniques to determine the presence of viral DNA. Results: 27.5 % of the samples that were reactive for anti-HBc alone and 100 % of those with positive results for HbsAg and IgM/IgG anti-HBc were identified to contain hepatitis B virus DNA (p = 0.001). Conclusions: The selection of infection markers, as well as the detection methods define the results. Performing two serological and one molecular test is important in order to identify hepatitis B virus carriers and prevent its transmission.

Manual de Organización y Funciones de la Unidad de Servicios de Apoyo Diagnóstico / Organization and Functions Manual of the Diagnostic Support Services Unit

La Unidad de servicios de apoyo diagnostico tiene la finalidad de elaborar y actualizar la normativa técnica para la prestación de los servicios de apoyo diagnóstico: Laboratorio Clínico, Banco de Sangre, Patología, Imagenología y Rayos X, que contribuyen con el plan terapéutico del paciente en cualquiera de los establecimientos de salud de los tres niveles de atención del MINSAL. En este sentido y a fin de establecer la herramienta administrativa que sirva de guía para el desarrollo de las funciones de dicha Unidad, se ha elaborado el presente Manual que describe la estructura organizativa, objetivos, funciones y relaciones de trabajo que orientan y delimitan el campo de acción de los diferentes elementos que intervienen en esa Unidad

The Diagnostic Support Services Unit has the purpose of developing and updating the technical regulations for the provision of diagnostic support services: Clinical Laboratory, Blood Bank, Pathology, Imaging and X-rays, which contribute to the therapeutic plan of the patient in any of the health establishments of the three levels of MINSAL care. In this sense and in order to establish the administrative tool that serves as a guide for the development of the functions of said Unit, this Manual has been prepared that describes the organizational structure, objectives, functions and work relationships that guide and delimit the field of action of the different elements that intervene in that Unit

Análise do perfil de doadores de sangue positivos para hemoglobina S em hemocentro do estado do Rio Grande do Sul / Profile assessment of blood donors with sickle cell trait in a public blood bank in Southern Brazil

Introdução: Portadores do traço falciforme podem doar sangue, porém requerem maior atenção ao direcionamento da sua transfusão. Considerando o perfil étnico- racial da região sul do Brasil, o presente artigo teve como objetivo analisar o perfil e a prevalência de Hemoglobina S em um hemocentro público de Porto Alegre. Métodos: Estudo transversal retrospectivo realizado através de uma pesquisa em banco de dados cadastrais e de resultados de testes imunológicos no período de janeiro de 2015 a dezembro de 2019. Resultados: Foram obtidos um total de 8.2363 registros cadastrais e 6.7184 testes imunológicos. Dos testes, 467 foram positivos para Hemoglobina S de 134 doadores distintos. O percentual de Hb S positiva apresentou uma média de 0,7% anual entre todos os doadores. Entre doadores autodeclarados "Negros" a prevalência é de 0,92% e "Caucasianos" é de 0,13%. Conclusão: Os dados corroboram com a literatura, porém o espectro social que abrange as denominações "Caucasiano Brasileiro" e "Mestiço" permanecem em questionamento dentro da relevância do marcador étnico da Hemoglobina S no Rio Grande do Sul. (AU)

Introduction: People with sickle cell trait can donate blood, but special attention should be paid to the transfusion recipient. Considering the ethnic-racial profile of Southern Brazil, this article aimed to analyze the profile and prevalence of hemoglobin S in a public blood bank in Porto Alegre. Methods: A quantitative, retrospective, and cross-sectional study was conducted to assess the profile of blood donors positively screened for hemoglobin S from January 2015 to December 2019 in a public blood bank in Southern Brazil. Results: A total of 82,363 records and 67,184 immunohematological tests were obtained. Regarding the tests, 467 were positive for hemoglobin S among 134 different donors. The percentage of positive hemoglobin S has remained stable over the years, with an annual average of 0.7%. The prevalence of self-reported "black" and "Brazilian Caucasian" blood donors was 0.92% and 0.13%, respectively. Conclusions: The data are in accordance with the literature; however, the social spectrum that comprises the terms "Brazilian Caucasian" and "mixed-race" remains in question regarding the relevance of the ethnic marker of hemoglobin S in Southern Brazil. (AU)

Prevalência do descarte de bolsas de sangue por sífilis em um serviço de hemoterapia no estado de Sergipe, Brasil / Prevalence of disposal of blood units due to syphilis in a hemotherapy service in the state of Sergipe, Brazil

Introdução: A doação de sangue é um ato capaz de salvar vidas. Quando a triagem sorológica é positiva, a bolsa de sangue é descartada. Este trabalho teve como objetivo avaliar a prevalência de descarte de bolsas de sangue em razão da positividade dos testes de triagem para sífilis. Métodos: Foi realizado um estudo epidemiológico observacional, com avaliação transversal e da tendência temporal da positividade do VDRL de acordo com as variáveis epidemiológicas, a partir de dados coletados no banco de sangue do Hemocentro de Sergipe das doações ocorridas de 1 de janeiro de 2007 a 31 de dezembro de 2018. Resultados: Do total de 308.953 doações de sangue, 4.594 bolsas (1,48%) foram descartadas devido a positividade para sífilis. A positividade foi significativamente maior no sexo masculino (OR = 1,14). Houve aumento significativo da prevalência com o aumento da faixa etária, de 0,63% (IC95% 0,51-0,760 em menores de 20 anos até 4,54% (IC95% 3,88-5,30) em pessoas com 60 anos e mais. Entre o período de 2007-2011 foi identificada uma tendência de crescimento da soroprevalência para sífilis (APC = 31,4) seguida pela estabilização do número de descarte de bolsas nos últimos anos. Discussão: O estudo identifica que, apesar de ter havido um aumento significativo no período inicial, a tendência foi de estabilidade nos últimos anos avaliados. É importante destacar a falta de um exame que indique concretamente a presença ativa da sífilis, pois todos os testes podem permanecer como cicatrizes por longos períodos, mesmos em pessoas com o tratamento adequado. (AU)

Introduction: Blood donation is an act that can save lives. When serological screening is positive, the blood bag is discarded. This study aimed to assess the prevalence of blood bag disposal due to positive screening tests for syphilis. Methods: An observational epidemiological study was carried out, with cross-sectional temporal trend assessment of VDRL positivity according to epidemiological variables, based on data collected in the blood bank of the Sergipe Blood Center, from the donations that occurred from 1 st January, 2007 to December 31 st , 2018. Results: Of the total of 308,953 blood donations, 4,594 bags (1.48%) were discarded due to positive serology for syphilis. Positivity was significantly higher in males (odds ratio = 1.14). There was a significant increase in prevalence with age, from 0.63% (95% CI 0.51-0.76) in individuals under 20 years old to 4.54% (95% CI 3.88-5.30) in those with 60 years and over. Between 2007-2011, a trend of increase in seroprevalence for syphilis was identified (annual percent change = 31.4), followed by stabilization in the disposal of bags in recent years. Discussion: Despite the increase in syphilis reported in society, the study identified that, although there was a significant increase in the initial period, it has been followed by stability in the last years evaluated. What is important is the lack of a test that in fact indicates the active presence of syphilis, since all tests can identify serological scars that remain for long periods, even in people with proper treatment. (AU)

Medidas de distanciamento social e demandas para reorganização dos serviços hemoterápicos no contexto da Covid-19 / Social distancing measures and demands for the reorganization of hemotherapy services in the context of Covid-19

Resumo O artigo tem por objetivo discutir as consequências das medidas de distanciamento social sobre a disponibilidade de sangue e a organização dos serviços hemoterápicos no início da pandemia de Covid-19 no Brasil. A partir do acesso às notícias publicadas no mês de abril de 2020 nos sites das Hemorredes estaduais do país e organizadas em matriz Excel, foram elaborados quadros-síntese e descrição de resultados. A situação crítica de abastecimento de sangue, em especial para alguns tipos sanguíneos, foi constatada em muitos estados, devido à circulação do novo coronavírus. A adoção de medidas de distanciamento social e a manutenção das demandas por transfusão para tratamentos, urgência e emergência, requereram a implantação e a implementação de estratégias e ações para reorganização dos serviços. Medidas de proteção foram incorporadas, fluxos alterados e rotinas estabelecidas. Este estudo evidencia o quanto a situação epidemiológica da Covid-19 e as medidas necessárias para o seu controle influenciaram sobre a situação dos estoques e disponibilidade de sangue, e, demandaram, mudanças na organização dos serviços hemoterápicos a fim de assegurar a proteção, mitigar os riscos de propagação do vírus e garantir o suprimento de sangue para o atendimento às necessidades do sistema de saúde.

Abstract The article aims to discuss the consequences of social distancing measures on the availability of blood and organization of blood therapy services at the beginning of the Covid-19 pandemic in Brazil. News published in April 2020 on the websites of the country's state Blood Service Networks were consulted and organized in an Excel spreadsheet, presented in summary charts, and descriptions of results were prepared. A critical situation of blood supply, especially of some blood types, has been observed in many states. This situation is influenced by the circulation of the new coronavirus. The adoption of social distancing measures associated with unchanged transfusion demands for outpatient, urgency and emergency care required the implementation of strategies and actions for the reorganization of the services. Protection measures were incorporated, flows were changed and new routines were established. This study shows the extent to which the epidemiological situation of Covid-19 and the necessary measures for its control influenced the stocks and availability of blood. Changes in the organization of blood therapy services were fundamental in order to ensure protection, mitigate the risks of spreading the virus, and ensure the blood supply to meet the needs of the health system.