RESUMEN Introducción: La Pandemia COVID-19, ha tenido impactos negativos en la salud física y mental de las personas, así como las medidas adoptadas por los gobiernos, para prevenir el contagio masivo de la población como el confinamiento, el aislamiento social, el trabajo y educación virtual. Dentro de los afectados por estos cambios, se encontrarían los estudiantes universitarios del área de la salud, que además de estudiar en estas condiciones de pandemia, no han podido hacer sus prácticas de los servicios de salud. Esta situación de exposición al aislamiento, podría afectar la salud mental de los jóvenes estudiantes universitarios. Objetivo: determinar los niveles de depresión, ansiedad y estrés en estudiantes universitarios y su relación con variables sociodemográficas y las características del aislamiento social durante la Pandemia COVID-19. Métodos: Se realizó un estudio descriptivo, observacional, de corte transversal y cuantitativo, con una muestra de 818 estudiantes universitarios de facultades de ciencias de la salud, mediante el cuestionario autoadministrado DASS-21. Resultados: Los principales hallazgos fueron: una mayor prevalencia en niveles altos (severos y extremadamente severos) en la ansiedad, alcanzado casi a 4 de cada 10 de los evaluados; por otro lado, en depresión y el estrés, 2 de cada 10 de los evaluados, se encontraron en los niveles mencionados. En relación con las variables sociodemográficas, las relacionadas con el COVID-19 y aislamiento social, se hallaron diferencias estadísticamente significativas con el género (mujeres > varones), el haber tenido COVID-19 (Sí > No) y vivir con familiares como antes de la pandemia (Sí > No) obtuvieron en promedio mayores puntajes en depresión, ansiedad y estrés. Conclusión: Los estudiantes que presentaron mayor depresión, ansiedad y estrés con una diferencia significativa fueron de género femenino, con antecedentes de haber tenido Covid-19, menor contacto con familiares y haber cumplido con aislamiento social total.

ABSTRACT Introduction: The COVID-19 Pandemic has had negative impacts on the physical and mental health of people, as well as the measures adopted by governments to prevent the massive contagion of the population, such as confinement, social isolation, virtual work, and virtual education. Among those affected by these changes would be university students in the health area who, in addition to studying in these pandemic conditions, have been unable to do their health service practices. This situation of exposure to isolation could affect the mental health of young university students. Objective: To determine the levels of depression, anxiety, and stress in university students, their relationship with sociodemographic variables, and the characteristics of social isolation during the COVID-19 Pandemic. Methods: A descriptive, observational, cross-sectional, and quantitative study was carried out with a sample of 818 university students from health sciences faculties using the DASS-21 self-administered questionnaire. Results: The main findings were a higher prevalence of high levels (severe and highly severe) in anxiety, reaching almost 4 out of 10 of those evaluated; On the other hand, in depression and stress, 2 out of 10 of those evaluated were found at the mentioned levels. Concerning the sociodemographic variables, those related to COVID-19 and social isolation, statistically significant differences were found with gender (women > men), having had COVID-19 (Yes > No), and living with relatives as before. On average, the pandemic (Yes > No) obtained higher scores in depression, anxiety, and stress. Conclusion: The students who presented greater depression, anxiety, and stress with a significant difference were female, with a history of having had Covid-19, less contact with family members, and having complied with total social isolation

RESUMEN El objetivo fue determinar la energía metabolizable aparente (EMAn) y digestibilidad íleal aparente (CDI) de aminoácidos en la harina de calamar gigante (Dosidicus gigas) (HCG), como alternativa proteica en dietas para pollos de engorda. Experimento 1: en la HCG se determinó la EMAn y el CDI de sus aminoácidos. A 96 pollos se les proporcionó dieta con 8 y 16% de HCG durante 21 días de edad. Experimento 2: 72 pollos fueron alimentados con 16 y 20% de HCG en la dieta, durante 42 días. Variables productivas, rendimiento de canal, color de piel y sabor fueron evaluados. Resultados: EMAn fue 3376.15 kcal/kg y CDI de los aminoácidos mayor a 68%, excepto histidina (21%) y cisteína (47%). Ganancia de peso y peso final se redujeron con 16% HCG (P < 0.05) respecto al testigo a los 21 días de edad, sin embargo, a los 42 días no se detectaron diferencias (P > 0.05) entre tratamientos con 16 y 20%, tanto en las variables productivas como en rendimiento de la canal y peso de pollos (P > 0.05). El sabor de la carne no se vio afectado por HCG (P > 0.05). Se concluye que la HCG es una fuente alterna de proteína en dietas para pollos de engorda.

ABSTRACT The objective was to determine apparent metabolizable energy (AMEn) and apparent ileal digestibility (AID) of amino acids in giant squid (Dosidicus gigas) (GSM) meal, as a protein alternative in diets for broilers. Experiment 1: in GSM the AMEn and the AID of its amino acids were determined. Ninety-six chickens were fed a diet with 8 and 16% GSM for 21 days of age. Experiment 2: 72 chickens were fed with 16 and 20% GSM in the diet for 42 days. Productive parameters, carcass yield, skin color and flavor meat were evaluated. Results: AMEn was 3376.15 kcal/kg and AID of amino acids greater than 68%, except histidine (21%) and cysteine (47%). Weight gain and final weight were reduced with 16% GSM (P < 0.05) compared to the control at 21 days of age, however at 42 days no differences were detected (P > 0.05) between treatments with 16 and 20%, both in the productive parameters and in carcass yield and chicken weight (P > 0.05). The taste of the meat was not affected by GSM (P > 0.05). It is concluded that GSM is an alternate source of protein in diets for broilers.

Resumen Se realizó una comparación interanual de la producción mensual de hojarasca de un bosque seco tropical (BsT) tardío en el Parque Nacional Santa Rosa. La producción de hojarasca promedio anual para tres años (6.7 ton/ha/año) indica que el sitio tiene un valor de producción en los rangos medio para BsT tropical tardío según la literatura. También se encontró que la estación seca concentra un 57% de volumen de biomasa de hojarasca. La relación de biomasa de hojas y otros residuos foliares fue de 56% y 44% correspondientemente para un año de análisis. No se encontró una correlación significativa entre variables climáticas anuales con la producción de hojarasca, pero hay claras evidencias que los años con estación de crecimiento más larga y con los menores déficits hídricos de evapotranspiración fueron los de mayor productividad.

Abstract An interannual comparison of monthly litterfall production was conducted in a late successional stage of a tropical dry forest (TDF) in the Santa Rosa National Park. According to the literature, the annual average litterfall production of three years (6.7 tons/ha/year) indicates that the site has a production value in the intermediate ranges for TDF. It was also found that the dry season produces 57% of the volume of litterfall biomass. The biomass ratio of leaves and foliar components was 56% and 44%, correspondingly, for one year of analysis. No direct relationship was found between annual climatic variables and litterfall production. However, there is clear evidence that the years with the most extended growth season and the smaller evapotranspiration deficits have the highest litterfall productivity.

Resumen Introducción: la enfermedad oftálmica relacionada con IgG4 (EOR-IgG4) presenta una frecuencia del 11-59%. Pocos estudios describen las disparidades con los pacientes con ER-IgG4 extraoftálmica (NO EOR-IgG4). Objetivos: describir las características clínicas, imagenológicas, anatomopatológicas, resultados de laboratorio y tratamiento de la EOR-IgG4, y compararlas con las de los pacientes NO EOR-IgG4. Materiales y métodos: se realizó un estudio descriptivo sobre una cohorte de 54 pacientes con ER-IgG4. Se reclutaron 16 pacientes con EOR-IgG4 y 38 con NO EOR-IgG4. Se compararon ambos grupos. Resultados: la EOR-IgG4 predominó en mujeres. El 75% presentó afectación oftálmica bilateral. El antecedente de asma se asoció al grupo NO EOR-IgG4 (p=0,018). Los pacientes con EOR-IgG4 presentaron niveles séricos menores de IgE e IgG total, y la glándula lagrimal fue la estructura más afectada. Predominó el infiltrado linfoplasmocitario y eosinofílico, siendo la fibrosis estoriforme más frecuente que la no estoriforme en el grupo EOR-IgG4. Conclusiones: si bien los resultados fueron similares a lo reportado previamente, en discordancia con otras series, encontramos asociación negativa entre el asma y los niveles de IgG total sérica en los pacientes EOR-IgG4.

Abstract Introduction: IgG4-related ophthalmic disease (IgG4-ROD) presents a frequency of 11-58.8%. Few studies describe the disparities with patients with extraophthalmic IgG4-related disease (NOT IgG4-ROD). Objectives: describe the clinical, imaging, pathological characteristics, laboratory results, and treatment of IgG4-ROD characteristics; and compare them with those of the NOT IgG4-ROD patients. Materials and methods: a descriptive study was carried out on a cohort of 54 patients with ER-IgG4. 16 patients with IgG4-ROD and 38 with NOT IgG4-ROD were recruited. The data was analyzed with the SPSS Statistics 19 software. Results: IgG4-ROD predominated in women. 75% presented bilateral ophthalmic involvement. A history of asthma was associated with the NOT IgG4-ROD group (p=0,018). Patients with IgG4-ROD presented lower serum levels of IgE and total IgG, and the lacrimal gland was the most affected structure. Lymphoplasmacytic and eosinophilic infiltrates predominated, with storiform fibrosis being more frequent than non-storiform in the IgG4-ROD group. Conclusions: although the results were similar to those previously reported, in disagreement with other series, we found a negative association between asthma and serum total IgG levels with EOR-IgG4 patients.

RESUMO A segurança do paciente na Atenção Primária à Saúde (APS) preocupa-se em reduzir erros e eventos adversos relacionados a assistência à saúde, porém há poucos estudos elaborados com aplicação de modelos avaliativos sobre a temática neste contexto. Este trabalho objetivou desenvolver e propor um modelo avaliativo da segurança do paciente na APS. Realizou-se um estudo de avaliabilidade por meio da análise documental, revisão de literatura, proposição dos modelos e validação dos modelos por meio da conferência de consenso. Idealmente, a teoria do programa, apresentada no Modelo Teórico, evidencia que os recursos, a cultura de segurança, os processos assistenciais e a educação permanente são componentes que viabilizam a implantação do programa, que precisam ser discutidos e aprimorados com envolvimento da gestão, dos profissionais e dos próprios pacientes/familiares e cuidadores, sendo, portanto, explorados no Modelo Lógico e assumidos como fundamentais para a oferta de cuidados mais seguros na APS quando interagem articuladamente. Na Matriz de Análise e Julgamento, esses quatro componentes assumem o mesmo peso no cálculo que determinará o grau de implantação da segurança do paciente na APS. A modelização apresentada pode ser utilizada por diversos atores, de diferentes contextos, para explorar e aprimorar a segurança do paciente na APS.

ABSTRACT Patient safety in Primary Health Care (PHC) is concerned with reducing errors and adverse events related to health care, but there are few studies developed with the application of evaluative models on the subject in this context. This study aimed to develop and propose an evaluation model of patient safety in PHC. An evaluability study was carried out through document analysis, literature review, proposition of models and validation of models through consensus conference. Ideally, the theory of the program, presented in the Theoretical Model, shows that resources, safety culture, care processes and permanent education are components that enable the implementation of the program, which need to be discussed and improved with the involvement of management, professionals and the patients/family members and caregivers themselves, being, therefore, explored in the Logical Model and assumed as fundamental for the provision of safer care in PHC when they interact articulately. In the Analysis and Judgment Matrix, these four components assume the same weight in the calculation that will determine the degree of implementation of patient safety in PHC. The modeling presented can be used by different actors, from different contexts, to explore and improve patient safety in PHC.

Resumen Introducción y objetivo. El cáncer de mama es la neoplasia maligna con mayor incidencia y prevalencia mundial (excluyendo tumores cutáneos no melanoma), con cifras crecientes. Por ello, cualquier tejido extraído de la mama, con independencia del motivo, debe ser enviado a estudio anatomopatológico. El objetivo de este estudio es determinar la prevalencia de lesiones premalignas y carcinoma oculto en las piezas de resección de mamas intervenidas por motivos no oncológicos durante 5 años en el Servicio de Cirugía Plástica, Estética y Reparadora del Hospital Universitario Río Hortega de Valladolid, España. Material y método. Analizamos las piezas de resección mamaria de 253 pacientes sin diagnóstico clínico de cáncer de mama clasificadas previamente en grupos de riesgo teórico creciente de neoplasia asociada, con el objetivo de identificar la prevalencia de lesiones premalignas y carcinoma oculto en nuestra población. Resultados. La prevalencia de lesiones malignas mostró un incremento progresivo desde el grupo control (2.25%): pacientes sin antecedente personal de neoplasia mamaria ni factor de riesgo genético, a los grupos A (7.07%): pacientes con antecedente de neoplasia mamaria; B (11.43%): pacientes con factor de riesgo genético; y C (16.67%): pacientes con antecedente de neoplasia mamaria y factor de riesgo genético, con una edad media al diagnóstico de 48.11 años. Conclusiones. Los resultados obtenidos se correlacionan con la literatura existente y ponen de manifiesto que el hallazgo casual de lesiones premalignas y malignas en pacientes sin diagnóstico de cáncer de mama es una realidad relativamente común, especialmente en mujeres con factores de riesgo genético y/o diagnóstico de neoplasia mamaria previa.

Abstract Background and objective. Breast cancer is the malignancy with the highest incidence and prevalence worldwide (excluding non-melanoma skin cancer), with growing rates. This is why any tissue removed from a breast (whatever the cause) must be properly analyzed. The aim of this study is to determine the prevalence of premalignant lesions and occult carcinoma in resected breast specimens operated for non-oncological reasons over a period of 5 years in the Plastic, Aesthetic, and Reconstructive Surgery Department at the Río Hortega University Hospital in Valladolid, Spain. Methods. We analyzed the breast resection specimens belonging to 253 patients without a clinical diagnosis of breast cancer, previously classified in groups of increasing theoretical risk of breast cancer, with the aim of identifying the prevalence of premalignant lesions and occult carcinoma in our population. Results. The prevalence of malignant lesions showed a progressive increase from the control group (2.25%): patients without personal history of breast neoplasia or genetic risk factor; to groups A (7,07%): patients with history of breast neoplasia; B (11.43%): patients with genetic risk factor; and C (16.67%): patients with history of breast neoplasia and genetic risk factor, with an average age at diagnosis of 48.11 years. Conclusions. The results correlate with the existing literature show that the casual finding of premalignant and malignant lesions in patients without a diagnosis of breast cancer is relatively common, especially in women with genetic risk factors and/or a prior diagnosis of breast cancer.

Resumen Objetivo: Poner en práctica y optimizar una metodología para evaluar los riesgos implicados en la elaboración de medicamentos en Servicios de Farmacia Hospitalaria con el fin de priorizar la validación de métodos analíticos de control de calidad. Método: Se han diseñado dos métodos para el cálculo del Número de Prioridad de Riesgo. Para el análisis y comparación entre ambos, se seleccionaron 3 parámetros a evaluar en cada medicamento: vía de administración, frecuencia de dispensación y complejidad del proceso de elaboración. A cada uno se asignó 4 niveles de gravedad, siendo 1 el más bajo y 4 el más alto. Se modificaron los criterios para la asignación de la gravedad en cada parámetro evaluado en el Método 2 con respecto al Método 1. Ambos métodos se han ensayado sobre 65 fórmulas. Resultados: El Método 1 segrega las formulaciones en 8 grupos según su Número de Prioridad de Riesgo. El Método 2 las separa en 14 grupos de 16 posibles. La frecuencia, en el Método 1 agrupa el 92,31% de las fórmulas en el primer nivel; la complejidad acumula el 86,15% en los niveles 2 y 4. Mientras el Método 2 separa el 25% de fórmulas en cada nivel según frecuencia, al segregar por cuartiles. La complejidad, al diferenciar las fórmulas asépticas con esterilización final de las elaboradas mediante llenado aséptico, separa las formulaciones en grupos más homogéneos. Conclusiones: El Método 2 es capaz de priorizar de forma más eficaz la validación de los métodos analíticos de las fórmulas analizadas, mejorando la consecución del objetivo propuesto.

Summary Aim: To implement an optimise a methodology to evaluate the risks involved in the compounding of drug products in Hospital Pharmacy Services with the objective of prioritise the validation of analytical methods for quality control. Method: Two different methods were designed to assess the Risk Priority Number. For their analysis and comparison, 3 parameters were evaluated in each drug product: administration route, dispensing rate and compounding process complexity. To each parameter 4 levels of severity were allotted, being 1 the lowest and 4 the highest. The criteria to assign the level of severity for each parameter differ in both methods used. 65 drug products were evaluated with each method. Results: The use of Método 1 segregates drug products in 8 groups as per the Risk Priority Number, whilst Método 2 separates them in 14 groups out of the 16 feasible ones. Dispensing rate in Método 1 lumps together in the first level 92,31% of the drug products; complexity, by its side, clusters 86,15% in levels 2 and 4. On the other hand, Método 2 divides drug products in groups of 25% per severity level according to dispensing rate, since they are distributed in quartiles. Complexity, since it separates aseptic drug products exposed to final sterilisation from the ones compounded by aseptic processing, sets products apart in a more homogeneous groups. Conclusions: Método 2 is capable to prioritise in a more effective way the validation of analytical methods for quality control of analysed drug products; with a slightly higher convolution, it accomplishes the aim of these methods to a larger extent.

RESUMO A segurança do paciente na Atenção Primária à Saúde (APS) preocupa-se em reduzir erros e eventos adversos relacionados a assistência à saúde, porém há poucos estudos elaborados com aplicação de modelos avaliativos sobre a temática neste contexto. Este trabalho objetivou desenvolver e propor um modelo avaliativo da segurança do paciente na APS. Realizou-se um estudo de avaliabilidade por meio da análise documental, revisão de literatura, proposição dos modelos e validação dos modelos por meio da conferência de consenso. Idealmente, a teoria do programa, apresentada no Modelo Teórico, evidencia que os recursos, a cultura de segurança, os processos assistenciais e a educação permanente são componentes que viabilizam a implantação do programa, que precisam ser discutidos e aprimorados com envolvimento da gestão, dos profissionais e dos próprios pacientes/familiares e cuidadores, sendo, portanto, explorados no Modelo Lógico e assumidos como fundamentais para a oferta de cuidados mais seguros na APS quando interagem articuladamente. Na Matriz de Análise e Julgamento, esses quatro componentes assumem o mesmo peso no cálculo que determinará o grau de implantação da segurança do paciente na APS. A modelização apresentada pode ser utilizada por diversos atores, de diferentes contextos, para explorar e aprimorar a segurança do paciente na APS. (APS preocupase preocupa se saúde contexto Realizouse Realizou documental literatura consenso Idealmente programa Teórico recursos gestão pacientesfamiliares pacientes familiares cuidadores sendo portanto articuladamente Julgamento atores contextos

ABSTRACT Patient safety in Primary Health Care (PHC) is concerned with reducing errors and adverse events related to health care, but there are few studies developed with the application of evaluative models on the subject in this context. This study aimed to develop and propose an evaluation model of patient safety in PHC. An evaluability study was carried out through document analysis, literature review, proposition of models and validation of models through consensus conference. Ideally, the theory of the program, presented in the Theoretical Model, shows that resources, safety culture, care processes and permanent education are components that enable the implementation of the program, which need to be discussed and improved with the involvement of management, professionals and the patients/family members and caregivers themselves, being, therefore, explored in the Logical Model and assumed as fundamental for the provision of safer care in PHC when they interact articulately. In the Analysis and Judgment Matrix, these four components assume the same weight in the calculation that will determine the degree of implementation of patient safety in PHC. The modeling presented can be used by different actors, from different contexts, to explore and improve patient safety in PHC. (PHC context analysis review conference Ideally program resources culture management patientsfamily patients family themselves being therefore articulately Matrix actors contexts

Resumen La fístula aortoentérica es una patología poco frecuente, pero de riesgo vital, asociada a alta morbimortalidad. Puede ser primaria (aneurisma, neoplasia, radioterapia, infección) o secundaria a prótesis vascular. El diagnóstico precoz y el tratamiento quirúrgico agresivo son los pilares fundamentales para lograr buenos resultados en estos pacientes. El objetivo de este trabajo es destacar la importancia del diagnóstico precoz de la fístula aortoentérica y su manejo multidisciplinar, mediante la presentación de un caso clínico.

Abstract Aortoenteric fistula is an uncommun life-threatening condition which remains associated with significant morbidity and mortality. It can be primary (aneurysm, neoplasms, radiation therapy, infection) or secondary to vascular prosthesis. Early diagnosis and aggressive surgical treatment are very important to achieve optimal outcomes in these patients. The aim of this article is to highlight the importance of early diagnosis and multidisciplinary approach of aortoenteric fistula through the presentation of a clinical case.

ABSTRACT Background: Central venous catheter (CVC) related infection is associated with high morbidity and mortality. It has also been linked to CVC-associated bacteremia, catheter dysfunctions, as well as handling and hygienic measures taken during that time. Objective: The aim of the present study is to compare the bacteremia rate between 2019 and 2020, the last one during which the SARS-CoV-2 virus pandemic started. The study was accomplished in a hemodialysis unit at the Comunidad Autonoma de Madrid hospital. Material and Method: An observational retrospective cross-sectional study has been carried out in which data related to the management and functioning of the catheter were compared to the bacteremia rate linked to the catheter between 2019 and 2020 through the unit's database. Results: In 2019, thirty-five patients were included, who had a bacteraemia rate of 1.42/1,000 catheter days, and twenty-nine patients in 2020, with a bacteraemia rate of 1.82/1,000 catheter days, finding no significant differences (p=0.54), as well as not finding an increased or decreased bacteremia risk during the first year of the pandemic caused by the SARS-CoV-2 virus. Conclusions: As the main conclusion of this case of study, we are able to confirm that there is no evidence of the coronavirus pandemic and the measures adopted against the SARS-CoV-2 virus (both organizational and preventives), being a risk or protection factor in regard to the bacteraemia rate, most likely due to the low number of events found.

RESUMEN Antecedentes: La infección relacionada con catéter venoso central (CVC) está asociada a una elevada morbimortalidad y se ha relacionado con la bacteriemia asociada a CVC, disfunciones de catéter, la manipulación y las medidas higiénicas tomadas durante la misma. Objetivo: El objetivo del presente estudio fue comparar la tasa de bacteriemia entre los años 2019 y 2020, primer año de pandemia por el virus SARS-CoV-2, en una unidad de hemodiálisis de un hospital de la Comunidad Autónoma de Madrid. Material y Método: Se ha llevado a cabo un estudio observacional retrospectivo transversal en el que se compararon datos relativos a la manipulación y al funcionamiento del catéter, y tasa de bacteriemias relacionadas con el catéter entre los años 2019 y 2020 a través de la base de datos de la unidad. Resultados: En 2019 se incluyeron 35 pacientes, que presentaron una tasa de bacteriemia de 1,42/1.000 días de catéter y 29 pacientes en 2020, con una tasa de bacteriemia de 1,82/1.000 días de catéter, no encontrándose diferencias significativas (p=0,54), no encontrando un riesgo de bacteriemia incrementado o disminuido durante el primer año de pandemia producida por el virus SARS-CoV-2. Conclusiones: Como principal conclusión de este estudio, podemos afirmar que no se ha evidenciado que la llegada de la pandemia producida por la enfermedad del coronavirus y las medidas adoptadas frente al virus SARS-CoV-2, tanto organizacionales como de prevención, sean un factor de riesgo o protección respecto a la tasa de bacteriemia, probablemente debido al bajo número de eventos encontrados.

RESUMEN. Objetivos: El presente estudio describe las enfermedades musculoesqueléticas (EME) de una cohorte de trabajadores de tipo manual, así como el uso de los fármacos indicados para el control del dolor. Estudio observacional retrospectivo llevado a cabo en el ámbito del Aragon Workers' Health Study (AWHS). Se ha analizado la prevalencia de las diferentes EME, la tasa de utilización de fármacos empleados en el tratamiento del dolor y el número de dosis diarias definidas (DDD) consumidas. El 15,4% de los trabajadores estudiados fueron diagnosticados de, al menos, una EME. De ellos, el 54,1% tenía sobrepeso y el 74,0% eran mayores de 55 años. La tasa de utilización de los antiinflamatorios no esteroideos (AINE) fue del 69,5%, y de los analgésicos no opiáceos, del 29,9%. Los datos presentados ponen de manifiesto la utilización elevada y, en algunos casos, continuada que existe de tratamientos analgésicos y antiinflamatorios.

ABSTRACT Objectives: The present study describes the musculoskeletal diseases (MSD) of a cohort of manual workers, as well as the use of drugs indicated for pain control. Retrospective observational study carried out within the framework of the Aragon Workers' Health Study (AWHS). The prevalence of the different EMEs, the rate of use of drugs used in the treatment of pain and the number of defined daily doses (DDD) consumed have been analysed. 15.4% of the workers studied were diagnosed with at least one EME. Of them, 54.1% were overweight and 74.0% were older than 55 years. The utilization rate of non-steroidal anti-inflammatory drugs (NSAIDs) was 69.5%, and of non-opioid analgesics, 29.9%. The data presented show the high use and, in some cases, the continuous use of analgesic and anti-inflammatory treatments.

Abstract Background Recessive Dystrophic Epidermolysis Bullosa (RDEB) is a rare inherited skin disease caused by variants in the COL7A1 gene, coding for type VII collagen (C7), an important component of anchoring fibrils in the basement membrane of the epidermis. RDEB patients suffer from skin fragility starting with blister formation and evolving into chronic wounds, inflammation and skin fibrosis, with a high risk of developing aggressive skin carcinomas. Restricted therapeutic options are limited by the lack of in vitro models of defective wound healing in RDEB patients. Results In order to explore a more efficient, non-invasive in vitro model for RDEB studies, we obtained patient fibroblasts derived from discarded dressings) and examined their phenotypic features compared with fibroblasts derived from non-injured skin of RDEB and healthy-donor skin biopsies. Our results demonstrate that fibroblasts derived from RDEB chronic wounds (RDEB-CW) displayed characteristics of senescent cells, increased myofibroblast differentiation, and augmented levels of TGF-β1 signaling components compared to fibroblasts derived from RDEB acute wounds and unaffected RDEB skin as well as skin from healthy-donors. Furthermore, RDEB-CW fibroblasts exhibited an increased pattern of inflammatory cytokine secretion (IL-1β and IL-6) when compared with RDEB and control fibroblasts. Interestingly, these aberrant patterns were found specifically in RDEB-CW fibroblasts independent of the culturing method, since fibroblasts obtained from dressing of acute wounds displayed a phenotype more similar to fibroblasts obtained from RDEB normal skin biopsies. Conclusions Our results show that in vitro cultured RDEB-CW fibroblasts maintain distinctive cellular and molecular characteristics resembling the inflammatory and fibrotic microenvironment observed in RDEB patients’ chronic wounds. This work describes a novel, non-invasive and painless strategy to obtain human fibroblasts chronically subjected to an inflammatory and fibrotic environment, supporting their use as an accessible model for in vitro studies of RDEB wound healing pathogenesis. As such, this approach is well suited to testing new therapeutic strategies under controlled laboratory conditions.