Occupational exposure level and requirements for radiation protection of nuclear medical staff / 中华劳动卫生职业病杂志

With the rapid development of nuclear medicine, the number of nuclear medical staff has increased a lot in the past few years in China. Close-range operations, such as preparation and injections of radiopharmaceuticals, are usually carried out in nuclear medicine department. And the use of unsealed radionuclides may also create internal exposure risk. So, occupational exposure of nuclear medical staff is a main issue of occupational health management in China. In this paper, the occupational exposure level and requirements for radiation protection of nuclear medical staff are introduced to provide references for the related work that radiological health technical institutions carry out.

Protecting healthcare workers during a pandemic: what can a WHO collaborating centre research partnership contribute? / Protección de los trabajadores de salud durante una pandemia: ¿qué puede aportar una alianza para la investigación entre centros colaboradores de la OMS? / Proteção dos trabalhadores da saúde em uma pandemia: qual seria a contribuição de uma parceria de pesquisa entre centros colaboradores da OMS?

ABSTRACT Objectives. To ascertain whether and how working as a partnership of two World Health Organization collaborating centres (WHOCCs), based respectively in the Global North and Global South, can add insights on "what works to protect healthcare workers (HCWs) during a pandemic, in what contexts, using what mechanism, to achieve what outcome". Methods. A realist synthesis of seven projects in this research program was carried out to characterize context (C) (including researcher positionality), mechanism (M) (including service relationships) and outcome (O) in each project. An assessment was then conducted of the role of the WHOCC partnership in each study and overall. Results. The research found that lower-resourced countries with higher economic disparity, including South Africa, incurred greater occupational health risk and had less acceptable measures to protect HCWs at the onset of the COVID-19 pandemic than higher-income more-equal counterpart countries. It showed that rigorously adopting occupational health measures can indeed protect the healthcare workforce; training and preventive initiatives can reduce workplace stress; information systems are valued; and HCWs most at-risk (including care aides in the Canadian setting) can be readily identified to trigger adoption of protective actions. The C-M-O analysis showed that various ways of working through a WHOCC partnership not only enabled knowledge sharing, but allowed for triangulating results and, ultimately, initiatives for worker protection. Conclusions. The value of an international partnership on a North-South axis especially lies in providing contextualized global evidence regarding protecting HCWs as a pandemic emerges, particularly with bi-directional cross-jurisdiction participation by researchers working with practitioners.

RESUMEN Objetivos. Determinar si la asociación de dos centros colaboradores de la Organización Mundial de la Salud, ubicados uno en el hemisferio norte y el otro en el hemisferio sur, puede aportar información sobre "qué es necesario para proteger a los trabajadores de salud durante una pandemia, en qué contextos, con qué mecanismos, con el objetivo de lograr qué resultados". Métodos. Se realizó una síntesis realista de siete proyectos en este programa de investigación para caracterizar el contexto (C) (incluida la posición del investigador), el mecanismo (M) (incluidas las relaciones de servicio) y el resultado (R) en cada proyecto. A continuación, se realizó una evaluación del papel que desempeñó la alianza de centros colaboradores de la OMS en términos generales y en cada estudio. Resultados. En la investigación se encontró que los países de escasos recursos con mayor disparidad económica, como Sudáfrica, incurrieron en un mayor riesgo para la salud ocupacional y tenían medidas menos aceptables para proteger a los trabajadores de salud al inicio de la pandemia de COVID-19 que los países homólogos de mayores ingresos y mayor equidad. Se de mostró que la adopción rigurosa de medidas de salud ocupacional puede proteger al personal de salud; la capacitación y las iniciativas preventivas pueden reducir el estrés en el lugar de trabajo; los sistemas de información se consideran valiosos; y los trabajadores de salud de mayor riesgo (como los asistentes de atención en el entorno canadiense) pueden identificarse con facilidad para la adopción de medidas de protección. El análisis de C-M-R mostró que las diferentes formas de trabajar por medio de una alianza de centros colaboradores de la OMS no solo facilitaron el intercambio de conocimientos, sino que además permitieron triangular los resultados y, en última instancia, las iniciativas para la protección de los trabajadores. Conclusiones. El valor de una alianza internacional radica especialmente en proporcionar evidencia mundial contextualizada sobre la protección de los trabajadores de salud cuando surge una situación de pandemia, particularmente con la participación bidireccional entre distintas jurisdicciones de investigadores que trabajan con el personal de salud.

RESUMO Objetivo. Determinar se, e como, o trabalho em parceria entre dois centros colaboradores da Organização Mundial da Saúde (OMS), localizados no Norte e no Sul global, pode contribuir com conhecimento sobre "o que é eficaz para proteger os trabalhadores da saúde em uma pandemia, em que contextos, com que mecanismos e para obter quais resultados". Métodos. Foi realizada uma síntese realista de sete projetos de pesquisa do programa da OMS para determinar o contexto (C) (incluindo a posicionalidade dos pesquisadores), o mecanismo (M) (incluindo as relações entre os serviços) e o resultado (O, do inglês outcome) de cada projeto e avaliar o papel da parceria entre os centros colaboradores em cada estudo e em geral. Resultados. Este estudo demonstrou que, nos países de baixa renda com maior desigualdade econômica (por exemplo, na África do Sul), o risco à saúde ocupacional foi maior e as medidas adotadas para proteger os trabalhadores da saúde na pandemia de COVID-19 foram menos adequadas em comparação ao observado em países comparáveis de alta renda com menor desigualdade. Verificou-se que a adoção rigorosa de medidas de saúde ocupacional efetivamente protege os trabalhadores da saúde, e que iniciativas de prevenção e capacitação dos profissionais reduzem o estresse no trabalho. Também se reconhece a importância dos sistemas de informação e que o pessoal com maior risco de exposição ao vírus (incluindo os cuidadores auxiliares, no caso do Canadá) pode ser prontamente identificado para que sejam adotadas medidas de proteção. A análise do tipo C-M-O indicou que as diferentes formas de trabalho em parceria entre os centros colaboradores possibilitaram não apenas dividir conhecimentos, mas também compartilhar resultados e, sobretudo, iniciativas para a proteção dos trabalhadores da saúde. Conclusões. A parceria internacional no eixo Norte-Sul é particularmente importante para obter evidências globais contextualizadas relativas à proteção dos trabalhadores da saúde em uma situação de pandemia, com a participação bidirecional entre foros de pesquisadores que trabalham com o pessoal da saúde.

Study on the diffusion of hydrogen fluoride in an electrolytic fluoride plant based on CFD numerical simulation method / 中华劳动卫生职业病杂志

Objective: Using CFD technology to grasp the distribution and diffusion of hydrogen fluoride in an electrolytic fluorine plant, provide guidance and scientific basis for enterprises to carry out occupational health management in enterprises, install hazardous substance alarm devices, and protect workers' occupational health. Methods: In July 2019, the diffusion law of hydrogen fluoride gas produced in an electrolytic fluorine plant is selected as the research object. Through the establishment of models and grids, the Fluent numerical simulation method is finally used to simulate the diffusion and distribution of hydrogen fluoride gas under ventilation conditions. Results: The results showed that the average concentration of hydrogen fluoride was 0.045 mg/m(3) in the workplace, and the absorbed zone height (1.5 m) was 0.02 mg/m(3) in the inspection channel, which was in accordance with the national standard. However, there is eddy current above the electrolyzer near the inlet, may lead to the accumulation of hydrogen fluoride gas. Conclusion: The research of CFD numerical simulation method on the distribution and diffusion of hydrogen fluoride concentration in electrolytic fluorine plant can be applied to the prevention, control and management of occupational hazards in electrolytic fluorine plant.

Risk factors analysis and intervention of blood-borne occupational exposure in medical staff / 中华劳动卫生职业病杂志

Objective: To analyze the risk factors of blood-borne occupational exposure among medical staff and explore the relevant intervention measures. Methods: In June 2020, the data of blood-borne occupational exposure and related factors reported by medical staff in a grade Ⅲ, Grade A general hospital from 2011 to 2019 were analyzed by retrospective investigation. Results: Among 431 cases of blood-borne occupational exposure, 69.37% were nurses. It mainly occurred in medical staff with 0-4 years of service, accounting for 63.57%; The main place of occupational exposure was in the ward 47.56%; Sharp instrument injury was the main occupational exposure route 91.65%. Occupational exposure department was mainly surgery department 17.87%; The main source of exposure was hepatitis B virus (HBV) 37.12%, followed by treponema pallidum 20.19%. Statistical analysis results show that: Exposure sites (χ(2)=43.585, P<0.01) , exposure sources (χ(2)=22.693, P<0.01) , treatment methods after exposure (χ(2)=18.866, P<0.01) , Flushing (χ(2)=31.963, P<0.01) and disinfection (χ(2)=14.216, P<0.01) were significantly different. Conclusion: The effective measures to reduce blood-borne occupational exposure are to strengthen occupational protection training of medical staff, standardize operation procedures, strengthen supervision of key groups and departments, improve reporting, monitoring and follow-up systems to realize informatization, and do a good job in risk control.

Evaluación biológica de la exposición laboral al plomo / Biological assessment of the work-related exposure to lead

Introducción: El plomo, por su amplio uso causa una gran contaminación ambiental y problemas de salud en muchas partes del mundo. La Organización Mundial de la Salud incluyó el plomo dentro de una lista de diez productos químicos causantes de graves efectos sobre la salud. Objetivo: Evaluar los niveles de plomo en sangre y de protoporfirina libre eritrocitaria en un grupo de trabajadores expuestos a plomo inorgánico. Métodos: Estudio descriptivo de corte transversal donde se evaluaron 776 casos que acudieron a los laboratorios del Instituto Nacional de Salud de los Trabajadores en el año 2018, provenientes de diferentes sectores industriales. Se les realizó la determinación de plomo en sangre a 288 y la de protoporfirina a 488, según métodos establecidos en el laboratorio. Los datos obtenidos fueron procesados utilizando Microsoft Excel® y el paquete estadístico Statgraphics Centurion XVI.II. Resultados: El 92 por ciento de los pacientes fue del sexo masculino. La concentración de plomo en sangre osciló entre 5 µg/dL y 89 µg/dL para un promedio en hombres de 24 µg/dL ± 21 µg/dL y en las mujeres de 11 µg/dL ± 9 µg/dL. Para la protoporfirina, esta fluctuó entre 21 µg/dL y 274 µg/dL, con un promedio de 47 µg/dL ± 22 µg/dL en hombres y 66 µg/dL ± 32 µg/dL en las mujeres. El 8 por ciento de los casos evaluados tuvo valores de plomo en sangre mayores de 60 µg/dL y para la protoporfirina el 5 por ciento de los casos presentaron valores por encima de 85 μg/dL. Conclusiones: Algunos casos evaluados presentaron niveles elevados de plomo que superan los límites permitidos, lo que pone en evidencia la necesidad de reforzar las medidas de protección aplicadas a los trabajadores y la importancia de detectar precozmente el problema en el ámbito laboral, antes de que aparezcan repercusiones derivadas de una intoxicación por plomo(AU)

Introduction: Lead, due to its large use, causes a major environmental pollution and health problems in many places around the world. The World Health Organization included lead in a list of ten chemical products causing severe effects in health. Objective: To assess lead levels in blood and free-erythtocyte protoporphyrin (FEP) levels in groups of workers exposed to inorganic lead. Methods: Descriptive. cross-sectional study where 776 cases coming from different industrial sectors were assessed in the laboratories of the National Institute of Workers Health in the year 2018. It was conducted to 288 of the cases a test to determine if there was lead in blood and a test for FEP to 488 cases, according to the methods established in the laboratory. The data collected were processed using Microsoft Excel® and the statistical program called Statgraphics Centurion XVI.II. Results: 92 percent of the patients were males. Lead concentration in blood ranged from 5 µg/dL and 89 µg/dL, for an average in men of 24 µg/dL ± 21 µg/dL, and in women of 11 µg/dL ± µg/dL. FEP concentration swung from 21 µg/dL to 274 µg/dL, with an average of 47 µg/dL ± 22 µg/dL in men, and 66 µg/dL ± 32 µg/dL in women. 8 percent of the assessed cases presented values of lead in blood higher than 60 µg/dL and for FEP, 5 percent of the cases presented values higher than 85 µg/dL. Conclusions: Some of the assessed cases presented high levels of lead which exceed the permitted levels; so, this demonstrates the need of reinforzing the protection measures applied to the workers and the importance of early detecting this problem in work-related environments prior to the onset of repercutions derived from lead poisoning(AU)

A vulnerabilidade de agentes comunitários de saúde frente ao risco biológico / The vulnerability of community health workers to biological risk

Os objetivos foram identificar as exposições ocupacionais a material biológico entre agentes comunitários de saúde; caracterizar os modos de exposição, as secreções orgânicas e as circunstâncias envolvidas; descrever as condutas adotadas e verificar a participação desses trabalhadores em capacitações sobre risco biológico e biossegurança. Estudo transversal descritivo. Participaram 80 agentes dos 89 integrantes de equipes de saúde da família de um distrito sanitário do município de Goiânia. Resultados: 23 (28,8%) referiram exposição ocupacional, 10 (43,5%) citaram mais de uma exposição. A maioria envolveu saliva em pele íntegra ou em mucosa. Menos da metade deles referiu participação em capacitações abordando risco biológico e biossegurança. Agentes comunitários de saúde foram expostos a material biológico e, predominantemente, não estavam preparados. Políticas públicas direcionadas a estes trabalhadores devem contemplar claramente o risco biológico e seu controle para direcionar estratégias, conferir proteção trabalhista e garantir a incorporação desta temática na formação desse grupo.

The objectives were to identify occupational exposure of community health workers to biological material; to characterize the means of exposure, organic secretions and circumstances involved; to describe the behaviors adopted, and verify the participation of these workers in training on biological risk and biosafety. Descriptive cross-sectional study. Participants comprised 80 workers of the 89 members of family health teams from a sanitary district of the municipality of Goiânia. Results: 23 (28.8%) reported occupational exposure and 10 (43.5%) reported more than one exposure. Most exposures involved saliva on intact skin or mucous membrane. Less than half reported participating in any form of training that addressed biological risk and biosafety. The community health workers were exposed to biological material and they were predominantly unprepared. Public policies for these workers must clearly observe biological risk and its control as a strategy guideline, provide worker protection, and ensure this subject is included in the education of community health workers.

Cumprimento às precauções-padrão por profissionais de enfermagem e fatores associados / Observancia de precauciones estándar por parte de profesionales de enfermería y factores asociados / Compliance with standard precautions by nursing professionals and related factors

Resumo Objetivo Verificar o cumprimento às Precauções-Padrão por profissionais de enfermagem e fatores associados. Método Estudo descritivo, transversal, com 522 profissionais de enfermagem, realizado em dois hospitais brasileiros, entre janeiro de 2017 a março de 2018. Os dados foram coletados por meio de um formulário contendo variáveis demográficas e profissionais e a Compliance with Standard Precautions Scale (versão Português-Brasil); posteriormente, analisados por estatísticas descritivas e exploratórias e um modelo de regressão linear múltiplo. Resultados O escore médio global 12,9 (DP=2,5). Técnicos de enfermagem tiveram escores médios estatisticamente significativos maiores (p <0,01) do que enfermeiros. Houve diferença significativa quanto à categoria profissional (p <0,01) e escolaridade (p <0,01), e, marginalmente significativa em relação à idade (p = 0,06). Não houve diferenças quanto à experiência profissional (p = 077), participação em treinamentos (p = 0,79), tipo de hospital (p = 0,13), respectivamente. A escolaridade não contribuiu para um maior cumprimento às medidas (p <0,01), assim como o ensino superior (p ≤ 0,01). Conclusão e Implicações para a prática O aumento na escolaridade e experiência profissional não contribuiu para maior cumprimento às Precações. Por contemplar aspectos da prática de enfermagem, estratégias de prevenção de exposição ocupacional podem ser revistas e aperfeiçoadas.

Resumen Objetivo Verificar la observancia de las Precauciones Estándar por parte de profesionales de enfermería, y sus factores asociados. Método Estudio descriptivo, transversal, con 522 profesionales de enfermería, realizado en dos hospitales brasileños entre enero de 2017 y marzo de 2018. Datos recolectados mediante formulario incluyendo variables sociodemográficas y profesionales, y Compliance with Standard Precautions Scale (versión Portugués-Brasil); analizados por estadística descriptiva y exploratoria y un modelo de regresión lineal múltiple. Resultados Puntaje medio global de 12,9 (DS=2,5). Los auxiliares de enfermería obtuvieron puntajes promedio mayores, estadísticamente significantes (p<0,01) respecto de los enfermeros. Existió diferencia significante respecto de la categoría profesional (p<0,01) y la escolarización (p<0,01); y marginalmente significante en relación a la edad (p=0,06). No hubo diferencias relativas a la experiencia profesional (p=0,77), participación en capacitaciones (p=0,79) y tipos de hospital (p=0,13). La escolarización no contribuyó a una mayor observancia de las medidas (p<0,01), al igual que los estudios superiores (p≤0,01). Conclusión e Implicaciones para la práctica Mayores grados de escolarización y experiencia profesional no contribuyeron a la observancia de las Precauciones. En razón de contemplar aspectos de la práctica de enfermería, las estrategias de prevención y exposición profesional merecen ser revisadas y perfeccionadas.

Abstract Objective To verify compliance with the Standard Precautions by nursing professionals and associated factors. Method A descriptive, cross-sectional study was carried out with 522 nursing professionals, in two Brazilian hospitals, between January 2017 and March 2018. Data were collected using a form containing demographic and professional variables and the Compliance with Standard Precautions Scale (Portuguese-Brazilian version); later, analyzed by descriptive and exploratory statistics and a multiple linear regression model. Results The global mean score was 12.9 (SD = 2.5). Nursing professionals had statistically significant higher scores (p <0.01) than nurses. There was a significant difference in terms of professional category (p < 0.01)) and education (p <0.01), and marginally significant in relation to age (p = 0.06). There were no differences regarding professional experience (p = 077), participation in training (p = 0.79), and type of hospital (p = 0.13), respectively. Education did not contribute to greater compliance with the measures (p <0.01), nor did higher education (p ≤ 0.01). Conclusion and implications for practice Increased education and professional experience did not contribute to greater compliance with the Standards Precautions. By considering aspects of nursing practice, occupational exposure prevention strategies can be reviewed and improved.

Descripción de elementos de radioprotección y dosimetría en unidades de cardiología intervencionista sudamericanas: un estudio piloto / Radioprotection and dosimetry in Interventional cardiology units in South America. a pilot study

ANTECEDENTES: Las unidades de Cardiología intervencional han evidenciado un número creciente de procedimientos, cada vez más variados y complejos, lo cual podría eventualmente generar daños a los profesionales ocupacionalmente expuestos a radiaciones ionizantes (POEs) de no contar con los adecuados elementos de radioprotección y un uso correcto de ellos. OBJETIVO: Caracterizar la disponibilidad y utilización de los elementos de radioprotección y dosimetría de unidades de cardiología intervencionista de centros Sudamericanos. MATERIAL Y MÉTODOS: Se realizó una encuesta autoaplicada a 139 POEs, de ambos sexos de 7 países, a través de una plataforma on-line, se les consultó sobre características demográficas, dosimétricas y de radioprotección. RESULTADOS: Los elementos de radioprotección más tradicionales; delantales y cuellos plomados se utilizaron un 99,5 % y 98,4 % respectivamente, aquellos elementos más recientes como gafas, gorros y paños plomados solo alcanzaron un 36,8 %, 6,8 % y 34,2%, de utilización respectivamente, en cuanto a la utilización de los dosímetros, solo un 7,9 % lo hace apegado a las normas de la Organización Internacional de Energía Atómica (OIEA). CONCLUSIÓN: Se constató en la muestra analizada una falta de elementos de radioprotección y un uso inadecuado de ellos, urge realizar intervenciones educativas y técnicas para mejorar estos datos.

BACKGROUND: Due to the increasing number of interventional cardiology procedures currently performed, health professionals (POE) are exposed to ionizing radiation unless adequate protective elements are used. AIM: to describe the use of radioprotection elements and dosimetry in interventional cardiology laboratories in South America. METHODS: A self-administered survey was performed on 139 POE of both sexes and 7 countries using an online platform. Demographic data, dosimetry and characteristics of radioprotection analyzed. RESULTS: Commonly used radioprotective elements (lead aprons and collars) were used in 99.5% and 98% respectively. Recently introduced protection elements like lead goggles, caps and drapery were used in 36.8, 6.8 and 34.2% , respectively. Dosimetry according to the International Atomic Energy Commission (OIAE) was performed in only 7.9% of the procedures. CONCLUSION: there is a severe lack of adequate radioprotection during interventional cardiology procedures. Urgent measures, including technical implementation and educational interventions are needed to improve radioprotection in interventional cardiology.

Evaluación de riesgo de cáncer en personas expuestas ocupacionalmente a solventes orgánicos / Cancer risk evaluation in individuals occupationally exposed to organic solvents

RESUMEN Objetivo Evaluar la frecuencia de micronúcleos (MN) e influencia de los polimorfismos en los genes del metabolismo GSTM1 y GSTT1 como biomarcadores de riesgo de cáncer en pintores de carros (n=152) con respecto a individuos no expuestos (n=152). Métodos Estudio Epidemiológico Molecular, tipo Corte Transversal analítico, interacción gen-ambiente. La evaluación de MNs y polimorfismos genéticos se determinó con pruebas moleculares en linfocitos de los individuos objeto de estudio. Resultados Se determinó que la frecuencia de MNs es 1.6 más alta en el grupo expuesto con relación al grupo referente (1.39±0.92 versus 0,87±0.78, p<0,0001). No se determinó un incremento en la frecuencia de MNs asociado a los polimorfismos en GSTM1 y GSTT1. Conclusiones El incremento de MNs en pintores de carros sirve para alertar al incremento de riesgo de cáncer en esta población expuesta a solventes orgánicos. Estos resultados pueden servir en Programas de Vigilancia Epidemiológica Ocupacional, como estrategia de prevención y en otros países con un amplio sector informal de individuos expuestos a estos químicos para reducir el riesgo de cáncer.(AU)

ABSTRACT Objective To evaluate the frequency of micronuclei (MNs) and influence of GSTM1 and GSTT1 gene polymorphisms as biomarkers of cancer risk in car painters (n=152) compared to unexposed individuals (n=152). Methods Molecular epidemiology study, cross-sectional analysis of gen and environment interaction. The evaluation of MN and genetic polymorphisms was determined by molecular tests in lymphocytes from subjects involved in the study. Results It was determined that the frequency of MNs is 1.6 higher in the exposed group compared to the reference group (1.39 ± 0.92 versus 0.87 ± 0.78, p<0.0001). There was no increase in the frequency of MNs associated with the polymorphisms in GSTM1 and GSTT1. Conclusions The increase of MNs in car painters serves to alert the increased risk of cancer in this population exposed to organic solvents. These results can be used in Occupational Epidemiological Surveillance Programs, as a prevention strategy and policies to regulate and control the use of solvents at a national level and in other countries with a large informal sector of individuals exposed to these chemicals to reduce the risk of cancer.(AU)

Occupational health in the framework of the COVID-19 pandemic: a scoping review / Seguridad y salud en el trabajo en el marco de la pandemia por COVID-19: una revisión exploratoria

ABSTRACT Objective To collect the available evidence related to occupational health in the face of the introduction of the new SARS-CoV-2 coronavirus pandemic. Methods Scoping review developed from the Arksey and O'Malley framework. The search was performed in the databases PubMed, Academic Search Complete, Science Direct, Medline, Scopus, Web of Science and Google Scholar. Documents on COVID-19 and its relationship with occupational health published in English, Portuguese and Spanish were included. The review, selection and characterization of the studies was carried out by five reviewers. Results The search and selection identified 43 documents published between December 2019 and April 2020. The topics covered include occupational exposure, protection measures, psychosocial affectations of workers, particularly health, as well as conditions of work organization that can influence contagion. Conclusions Health workers are the most exposed workforce. Accompaniment, coaching and training in relation to patient care and the use of personal protection equipment are essential to reduce contagion among health personnel. In other work activities, social distancing is the standard measure for the mitigation of transmission, as well as the continuous disinfection of workplaces.(AU)

RESUMEN Objetivo Recopilar la evidencia disponible relacionada con la salud laboral frente a la introducción de la nueva pandemia por el coronavirus SARS-CoV-2. Métodos Revisión exploratoria desarrollada a partir del marco de Arksey y O'Malley. La búsqueda se realizó en las bases de datos PubMed, Academic Search Complete, Science Direct, Medline, Scopus, Web of Science y Google Scholar. Se incluyeron documentos sobre COVID-19 y su relación con la salud ocupacional publicados en inglés, portugués y español. La revisión, selección y caracterización de los estudios fue desarrollada por cinco revisores. Resultados La búsqueda y selección identificó 43 documentos publicados entre diciembre de 2019 y abril de 2020. Las temáticas abordadas incluyen exposición ocupacional, medidas de protección, afectaciones psicosociales de los trabajadores, particularmente de la salud, así como condiciones de la organización del trabajo que pueden influir en el contagio. Conclusiones Los trabajadores de la salud son la fuerza laboral más expuesta. El acompañamiento, entrenamiento y la capacitación en relación con la atención de pacientes y el uso de elementos de protección personal son fundamentales para disminuir el contagio entre personal de salud. En otras actividades laborales el distanciamiento social es la medida estándar para la mitigación de la transmisión, así como la desinfección continua de los lugares de trabajo.(AU)

Prevención de la infección por SARS-COV-2 en procedimientos terapéuticos y/o diagnósticos / Prevention of infection against SARS-CoV-2 in therapeutic and diagnostic procedures

The SARS-CoV-2 pandemic has spread rapidly throughout the world. Its main transmission mechanisms are through droplets and by contact with contaminated surfaces. At the in-hospital level, the formation of bioaerosols becomes important when carrying out therapeutic and diagnostic procedures, facilitating air transmission. This condition could be associated with the significant number of deceased health officials. Physical distancing, frequent hand washing, and permanent use of a mask are useful tools to control the disease. Among the aerosol-generating procedures (PGAs) are endotracheal intubation, bronchoscopy, open aspiration of secretions, nebulizations, manual ventilation, prone positioning, disconnection of the mechanical ventilator, non-invasive positive pressure ventilation, tracheostomy and cardiopulmonary resuscitation. The correct use of personal protection elements (PPE) and the realization of these in rooms with negative pressure or with frequent air changes considerably reduce the risk of becoming ill.

La pandemia del SARS-CoV-2 se ha diseminado rápidamente por el mundo. Sus principales mecanismos de transmisión son a través de gotitas y por contacto con superficies contaminadas. A nivel intrahospitalario, cobra importancia la formación de bioaerosoles al realizar procedimientos terapéuticos y de diagnóstico facilitando la transmisión aérea. Esta condición podría estar asociada al importante número de funcionarios de la salud fallecidos. El distanciamiento físico, el lavado frecuente de manos y el uso permanente de mascarilla son útiles herramientas para controlar la enfermedad. Dentro de los procedimientos generadores de aerosoles (PGAs) están la intubación endotraqueal, broncoscopía, aspiración abierta de secreciones, nebulizaciones, ventilación manual, posicionamiento en prono, desconección del ventilador mecánico, ventilación no invasiva a presión positiva, traqueostomía y reanimación cardiopulmonar. El uso correcto de los elementos de protección personal (EPP) y la realización de éstos en salas con presión negativa o con recambios frecuentes del aire disminuyen considerablemente el riesgo de enfermar.

Lineamientos técnicos para el manejo y disposición final de cadáveres de casos COVID-19 (Segunda Edición) / Technical guidelines for the management and final disposal of cadavers of COVID-19 cases (Second Edition)

Las directrices para el manejo y disposición final de cadáveres por COVID­2019, requieren de medidas de bioseguridad y precaución estándar encaminadas para este fin y lograr la prevención de esta infección en el personal responsable del manejo y disposición final de cadáveres. Los presentes lineamientos técnicos contienen las actividades que el personal de salud debe cumplir para el manejo y disposición final de cadáveres en los diferentes escenarios y durante el traslado en busca de atención. Asimismo se establecen las indicaciones para la inhumación ante el fallecimiento por caso confirmado o sospecho de COVID-19. Todo lo anterior con el objetivo de proteger la salud de la población en general fortaleciendo la prevención y evitando la transmisibilidad. Objetivo general: Establecer las disposiciones técnicas y de bioseguridad para la prevención de infecciones en el personal responsable del manejo y disposición final de cadáveres por COVID­19, familiares, comunidad en general y otros actores que intervengan en estos procesos por mandato legal. Objetivos específicos: a)Brindar las directrices sobre el manejo y disposición final del cadáver dentro y fuera de los establecimientos de salud. b)Orientar a las instituciones funerarias sobre el procedimiento a seguir durante la pandemia COVID-19. c)Disponer de un instrumento legal que garantice evitar la transmisibilidad de la enfermedad COVID-19 por la manipulación de cadáveres. Ámbito de aplicación: Están sujetos al cumplimiento de los presentes Lineamientos técnicos el personal del Sistema Nacional Integrado de Salud, municipalidades, personas naturales y jurídicas que estén vinculadas al manejo y disposición final de cadáveres por COVID-19

Investigation of protective exposure risk events in nurses against corona virus disease 2019 in Wuhan / 北京大学学报(医学版)

OBJECTIVE@#To investigate the current situation of virus exposure risk incidents of nurses against corona virus disease 2019 (COVID-19) in Wuhan, and to provide reference evidence for nursing managers to protect nursing staff who were working in the isolation ward.@*METHODS@#In the study, 308 nursing staff against COVID-19 working in the isolation ward in Wuhan were conveniently selected to participate in the investigation. The designed questionnaires including 7 kinds of protective exposure risk events were made by the team of researchers on the basis of literature review and interview with the nurses in Wuhan. All the participants recalled their working experience in the status of dressing in personal protective equipment and filled in the questionnaires online by WeChat according to the same instruction.@*RESULTS@#The questionnaires were filled in validly by a total of 304 nursing staff, of whom 88.8% received emergency training on the prevention and dealing measurement of exposure risk events. The incidence of shoe cover contamination, falling off or torn was relatively high, about 53.6%. Due to the protection of gloves, the incidence of hand or skin contamination was relatively low, about 14.1%. The most nervousness of protective exposure risk event for nurses was N95 mask contamination, falling off or shifting, with a score of 8.2±2.3, showing a higher psychiatric burden. Single factor analysis found that the number of days in Wuhan was different, the number of the types of protective risk events occurred was different (χ2=14.562, P=0.024), orderly multivariate Logistic regression found that men were the independent protective factor for the number of the types of protective exposure risk events that occurred (P=0.019).@*CONCLUSION@#Protective exposure risk events may occur in the work of nursing staff working in the isolation ward in Wuhan. It is necessary to guide nurses to prevent the occurrence of protective exposure risk events and effectively deal with them, so as to prevent virus exposure and reduce psycholo-gical burden.

Alternativas para o estabelecimento de via aérea cirúrgica durante a pandemia de COVID-19 / Alternatives for establishing a surgical airway during the COVID-19 pandemic

RESUMO Atualmente médicos e profissionais da saúde encontram-se frente a uma pandemia desafiadora causada por uma nova cepa denominada 2019 Novel Coronavírus (COVID-19). A infecção humana pelo COVID-19 ainda não tem o espectro clínico completamente descrito, bem como não se sabe com precisão o padrão de letalidade, mortalidade, infectividade e transmissibilidade. Não há vacina ou medicamento específico disponível. O tratamento é de suporte e inespecífico. No Brasil, assim como no restante do mundo o número de casos de COVID-19 tem crescido de maneira alarmante levando a um aumento do número de internações assim como da mortalidade pela doença. Atualmente os estados com maior número de casos são, respectivamente, São Paulo, Rio de Janeiro, Distrito Federal e Ceará. O objetivo deste trabalho é oferecer alternativas a fim de orientar cirurgiões quanto ao manejo cirúrgico das vias aéreas em pacientes com suspeita e/ou confirmação para infecção pelo COVID-19.

ABSTRACT Currently doctors and health professionals are facing a challenging pandemic caused by a new strain called 2019 Novel Coronavirus (COVID-19). Human infection with COVID-19 does not yet have the clinical spectrum fully described, and the pattern of lethality, mortality, infectivity and transmissibility is not known with precision. There is no specific vaccine or medication available. Treatment is supportive and nonspecific. In Brazil, as in the rest of the world, the number of COVID-19 cases has grown alarmingly, leading to an increase in the number of hospitalizations as well as in mortality from the disease. Currently, the states with the highest number of cases are, respectively, São Paulo, Rio de Janeiro, Distrito Federal and Ceará. The objective of this work is to offer alternatives in order to guide surgeons regarding the surgical management of the airways in patients with suspicion and / or confirmation for COVID-19 infection.

Surgical cancer care in the COVID-19 era: front line views and consensus / A assistência cirúrgica oncológica na era COVID-19: opiniões e consenso do campo de batalha

ABSTRACT Objective: to suggest a script for surgical oncology assistance in COVID-19 pandemic in Brazil. Method: a narrative review and a "brainstorming" consensus were carried out after discussion with more than 350 Brazilian specialists and renowned surgeons from Portugal, France, Italy and United States of America. Results: consensus on testing for COVID-19: 1- All patients to be operated should be tested between 24 and 48 before the procedure; 2- The team that has contact with sick or symptomatic patients should be tested; 3 - Chest tomography was suggested to investigate pulmonary changes. Consensus on protection of care teams: 1 - Use of surgical masks inside the hospitals. Use of N95 masks for all professionals in the operating room; 2 - Selection of cases for minimally invasive surgery and maximum pneumoperitoneal aspiration before removal of the surgical specimen; 2 - Optimization of the number of people in teams, with a minimum number of professionals, reducing their occupational exposure, the consumption of protective equipment and the circulation of people in the hospital environment; 3 - Isolation of contaminated patients. Priority consensus: 1- Construction of service priorities; 2 - Interdisciplinary discussion on minimally invasive or conventional pathways. Conclusion: the Brazilian Society of Surgical Oncology (BSSO) suggests a script for coping with oncological treatment, remembering that the impoundment in the assistance of these cases, can configure a new wave of overload in health systems.

RESUMO Objetivo: sugerir roteiro de assistência oncológica cirúrgica em meio à pandemia COVID-19 no Brasil. Método: foi realizada revisão narrativa da literatura e consenso tipo "brainstorming" após discussão com mais de 350 especialistas brasileiros e cirurgiões renomados de Portugal, França, Itália e Estados Unidos da América. Resultados: consenso sobre testagem para COVID-19: 1-Todos os pacientes a serem operados devem ser testados entre 24 e 48 antes do procedimento; 2-Equipe que tenha contato com doentes ou sintomáticos deve ser testada; 3-Tomografia de tórax foi sugerida para pesquisa de alterações pulmonares. Consenso sobre proteção das equipes de assistência: 1-Uso de máscaras cirúrgicas dentro de hospitais. Uso de máscaras N95 para todos os profissionais na sala cirúrgica; 2-Seleção dos casos para cirurgia minimamente invasiva e aspiração máxima do pneumoperitônio antes da retirada da peça cirúrgica; 2-Otimização das equipes, com número mínimo de profissionais, reduzindo a exposição ocupacional, o consumo de equipamento de proteção e a circulação de pessoas no ambiente hospitalar; 3 -Isolamento de pacientes contaminados. Consenso sobre priorizações: 1-Construção de prioridades de atendimento; 2- Discussão interdisciplinar sobre via minimamente invasiva ou convencional. Conclusão: a Sociedade Brasileira de Cirurgia Oncológica (SBCO) sugere roteiro de enfrentamento para o tratamento oncológico, lembrando que o represamento na assistência desses casos, pode configurar uma nova onda de sobrecarga em sistemas de saúde.

Estudios de imagen cardiaca en la pandemia COVID-19 / Cardiac imaging studies in the COVID-19 pandemic

Resumen El COVID-19 es un síndrome respiratorio agudo ocasionado por el coronavirus-2 (SARS COV2). Los diferentes métodos de imagen cardiaca han dictado recomendaciones específicas de los diferentes métodos de imagen en esta pandemia, por lo que es indispensable recalcar las recomendaciones para la realización de estos estudios.

Abstract COVID-19 is an acute respiratory syndrome caused by coronavirus-2 (SARS COV2). The different cardiac imaging methods have issued specific recommendations for the different imaging methods in this pandemic, so it is essential to emphasize the recommendations for carrying out these studies.

Analysis of Key Points of Radiation Sources in Proton and Carbon Ion Radiotherapy Facilities in Shanghai / 中国医疗器械杂志

Compared with conventional high energy X-ray radiotherapy, proton/carbon ion has obvious advantages because of its Bragg peak dose distribution. However, proton heavy ion facility has complex structure, high energy and various radiation types due to various nuclear reaction processes, the radiation protection safety brought by the operation of facilities has gradually attracted attention. Taking the proton/carbon ion radiotherapy facility of Shanghai Proton and Heavy Ion Center as an example, the author mainly analyzed the operation principle of proton/carbon ion treatment facility, the basis of radiation protection, analysis of key radiation source points, etc., so as to provide theoretical support and experience for radiation protection.