The development and implementation of a low-cost mechanical ventilator in a low-middle-income country during the COVID-19 pandemic: The Unisabana-HERONS.

Background: The COVID-19 pandemic in Latin America generated the need to develop low-cost, fast-manufacturing mechanical ventilators. The Universidad de La Sabana and the Fundacion Neumologica Colombiana designed and manufactured the Unisabana-HERONS (USH) ventilator. Here, we present the preclinical and clinical study results to evaluate its effectiveness and safety characteristics in an animal model (Yorkshire Sow) and five patients with acute respiratory failure receiving mechanical ventilatory support for 24 h. Methods: The effectiveness and safety outcomes included maintaining arterial blood gases and pulse oximetry saturation (SpO2), respiratory pressures and volumes (during continuous monitoring) in the range of ARDS and lung-protective strategy goals, and the occurrence of barotrauma. A significance level of 0.05 was used for statistical tests. This clinical trial was registered on Clinicaltrials.gov (NCT04497623) and approved by the ethics committee. Results: Among patients treated with the Unisabana-HERONS, the most frequent causes of acute respiratory failure were pneumonia in 3/5 (60 %) and ARDS in 2/5 (40 %). During the treatment, the ventilatory parameters related to lung protection protocols were kept within the safety range, and vital signs and blood gas were stable. The percentage of time that the respiratory pressures or volumes were out of safety range were plateau pressure >30 cm H2O: 0.00 %; driving pressure >15 cm H2O: 0.06 %; mechanical power >15 J/min: 0.00 %; and Tidal volume >8 mL/kg: 0.00 %. There were no adverse events related to the ventilator. The usability questionnaire retrieved a median score for all items between 9 and 10 (best score: 10), indicating great ease of use. Conclusion: The Unisabana-HERONS ventilator effectively provided adequate gas exchange and maintained the ventilatory parameters in the range of lung protection strategies in humans and an animal model. Furthermore, it is straightforward to use and is a low-cost medical device.

[Diffuse interstitial lung disease of possible occupational origin treated at the Navarra Health Service. Navarra, Spain, 2017-2022]. / Enfermedad pulmonar intersticial difusa de posible origen laboral atendida en el Servicio Navarro de Salud. Navarra, España, 2017-2022.

INTRODUCTION: Diffuse interstitial lung disease (ILD) describes a broad group of pulmonary inflammatory and fibrosis disorders. Asbestosis and silicosis are the main causes linked to occupational exposure. The aim of this study was to estimate the proportion of cases with possible occupational origin and describe their exposure, clinical, and occupational status. METHOD: We conducted a retrospective longitudinal study of ILD cases between 2017 - 2022 at the University Hospital of Navarra was conducted. Information was supplemented with interviews of cases with possible occupational origin. The occupational proportion was calculated, labor and clinical characteristics analyzed, by statistical comparison of percentages and means. RESULTS: Out of 1067 ILD cases, 56 had a possible occupational origin 5,2% (95% CI 3,9-6,6%). 36 (64,3%) corresponded to asbestosis, 15 (26,8%) to silicosis, and 5 (8,9%) to unspecified pneumoconiosis. The most frequent activities in silicosis were "stone cutting-carving" and in asbestosis "manufacture of iron products". The average age of asbestosis cases was higher than that of silicosis cases (78,2 vs. 67,3 years), as well as their clinical manifestation. Five cases (8,9%) had been recognized as occupational diseases. CONCLUSIONS: The implementation of a computer tool in medical records has made it possible to estimate the magnitude and assess the evolution of occupational ILD treated in the Public Health Service. Economic activities reflect the economic risk structure of the region. However, there is a lack of recognition of these diseases as occupational illnesses and they represent a preventable burden of respiratory disease.

Introducción: La enfermedad pulmonar intersticial difusa (EPID) describe un amplio grupo de trastornos con inflamación y fibrosis pulmonar. La asbestosis y la silicosis son las principales causas por exposición laboral. El objetivo de este trabajo fue estimar la proporción de casos de posible origen laboral y describir la exposición, situación clínica y laboral.  Método: Estudio longitudinal retrospectivo de los casos de EPID, en el período 2017-2022 en el Hospital Universitario de Navarra. Se completó la información con entrevista a los casos de posible origen laboral.  Resultados: De un total de 1067 casos de EPID, 56 tuvieron un posible origen laboral, 5,2% (3,9-6,6 IC 95%) 36 (64,3%) correspondieron a asbestosis, 15 (26,8%) a silicosis y 5 (8,9%) a neumoconiosis no especificada. Las actividades más frecuentes en silicosis fueron "corte-tallado de piedra" y para asbestosis "fabricación productos hierro". La media de edad de los casos de asbestosis fue superior a los de silicosis (78,2 vs. 67,3 años), así como su afectación clínica. Cinco casos (8,9%) habían sido reconocidos como enfermedad profesional  Conclusiones: La implementación de una herramienta informática en historia clínica ha hecho posible estimar la magnitud y valorar la evolución de las EPID laborales atendidas en el servicio nacional de salud. Las actividades económicas reflejan la estructura económica de riesgo de la región. Sin embargo, existe una falta de su reconocimiento como enfermedad profesional y suponen una carga de enfermedad respiratoria evitable.

Análisis de Red de la Ideación Suicida Pasiva y Activa en Adolescentes / Network analysis of passive and active suicidal ideation in adolescents

La ideación suicida es un problema psicológico complejo y ambivalente que fluctúa entre pensamientos pasivos y activos acerca de la propia muerte de la persona. La adolescencia es una etapa de desarrollo importante para el bienestar físico y psicológico, sin embargo, la presencia de problemas psicológicos puede afectar su salud y supervivencia. El objetivo del estudio fue analizar la asociación de la ideación suicida pasiva y activa en adolescentes peruanos de población general. Participaron 1444 adolescentes entre 11 a 19 años (56.6% mujeres; edad media = 14.03;DT = 1.54) que respondieron un cuestionario de ideación suicida. Se estimó un modelo de red gaussiano, examinando sus propiedades globales, locales y comparación según sexo. Los resultados indicaron que los deseos de no existir, creer que no merecía vivir y pensamientos de suicidarse fueron los nodos más centrales. La ideación suicida pasiva (deseos de no existir y creer que no merecía vivir) se relacionó con la ideación suicida activa (pensamientos en suicidarse y hacerse daño). Además, para las mujeres y hombres, el deseo de no existir tuvo la mayor centralidad, aunque los hombres mayormente se asociaron con pensamientos en suicidarse a comparación de las mujeres. En conclusión, la evaluación de la ideación suicida pasiva y activa, en su conjunto y no enfatizando solo un tipo, es una práctica recomendable para la valoración del riesgo de suicidio en población adolescente. En esta etapa, es oportuno considerar las diferencias de sexo sobre la gravedad de ideación suicida en las entrevistas psicológicas y actividades psicoterapéuticas. (AU)

Suicidal ideation is a complex and ambivalent psychological problem that fluctuates between passive and active thoughts about the person’s own death. Adolescence is an important developmental stage for physical and psychological well-being, however, the presence of psychological problems can affect their health and survival. The aim of the study was to analyze the association of passive and active suicidal ideation in Peruvian adolescents from the general population. The participants were 1444 adolescents between 11 to 19 years (56.6% female; mean age = 14.03; SD = 1.54) who responded to a suicidal ideation questionnaire. A Gaussian network model was estimated, examining its global and local properties and comparing according to sex. The results indicated that wishes of not existing, believing that one did not deserve to live, and thoughts of suicide were the most central nodes. Passive suicidal ideation (wishes of not existing and believing that one did not deserve to live) was related to active suicidal ideation (thoughts of committing suicide and hurting oneself). In addition, for women and men, the desire not to exist had the greatest centrality, although men were more likely to be associated with thoughts of suicide than women. In conclusion, the evaluation of passive and active suicidal ideation, as a whole and not emphasizing only one type, is a recommended practice for the assessment of suicide risk in the adolescent population. At this stage, it is appropriate to consider gender differences in the severityof suicidal ideation in psychological interviews and psychotherapeutic activities. (AU)

A Combined Ligand- and Structure-Based Virtual Screening To Identify Novel NaV1.2 Blockers: In Vitro Patch Clamp Validation and In Vivo Anticonvulsant Activity.

Epilepsy is a neurological disorder characterized by recurrent seizures that arise from abnormal electrical activity in the brain. Voltage-gated sodium channels (NaVs), responsible for the initiation and propagation of action potentials in neurons, play a critical role in the pathogenesis of epilepsy. This study sought to discover potential anticonvulsant compounds that interact with NaVs, specifically, the brain subtype hNaV1.2. A ligand-based QSAR model and a docking model were constructed, validated, and applied in a parallel virtual screening over the DrugBank database. Montelukast, Novobiocin, and Cinnarizine were selected for in vitro testing, using the patch-clamp technique, and all of them proved to inhibit hNaV1.2 channels heterologously expressed in HEK293 cells. Two hits were evaluated in the GASH/Sal model of audiogenic seizures and demonstrated promising activity, reducing the severity of sound-induced seizures at the doses tested. The combination of ligand- and structure-based models presents a valuable approach for identifying potential NaV inhibitors. These findings may provide a basis for further research into the development of new antiseizure drugs for the treatment of epilepsy.

Traducción y validez de la Stigma of Suicide Scale Short Form (SOSS-SF) en población peruana

Introducción: El estigma hacia las personas que mueren por suicidio o presentan conductas suicidas se considera una barrera para la búsqueda de apoyo profesional y porque tiene efectos en el bienestar psicológico, físico y social. La sociedad cumple un rol importante en la prevención y tratamiento del suicidio, siendo un apoyo necesario para las personas. Objetivo: Traducir al español y validar la Stigma of Suicide Scale Short Form en adultos peruanos de la población general. Métodos: Estudio transversal de enfoque cuantitativo e instrumental. Participaron 1013 adultos peruanos que respondieron la Escala de Estigma del Suicidio - Forma corta (SOSS-SF). El método de traducción inversa se utilizó para la versión de inglés al español. Los análisis se realizaron a partir de la teoría clásica de los test y teoría de respuesta al ítem. Resultados: Los participantes estuvieron de acuerdo en que las personas que mueren por suicidio eran solitarias (39,4 %), aisladas (39,3 %), cobardes (35,2 %) e irresponsables (35 %). La estructura de 3 factores fue adecuada, presentó buena confiabilidad (ωbayes > 0,77, H > 0,83) e invarianza según sexo. Además, todos los ítems discriminaron adecuadamente; el ítem 10 fue el más preciso para medir el estigma hacia el suicidio. Conclusiones: La versión en español del SOSS-SF presenta evidencias de validez basadas en el contenido, estructura interna, confiabilidad, invarianza y respuestas del ítem. Se recomienda su uso para la interpretación e inferencia de sus puntuaciones en la evaluación del estigma hacia el suicidio en población general adulta peruana.

Introduction: Stigma towards people who die by suicide or present suicidal behaviors, is considered a barrier for the search professional support and because it has effects on psychological, physical and social well-being. Society complies an important role in suicide prevention and treatment, being a necessary support for individuals. Objective: To translate into Spanish and validate the Stigma of Suicide Scale Short Form in Peruvian adults from the general population. Methods: Cross-sectional study of quantitative and instrumental approach. A total of 1013 Peruvian adults who responded the Suicide Stigma Scale - Short Form (SOSS-SF) participated. The reverse translation method was used for the English to Spanish version. Analyses were performed as from classical test theory and item response theory. Results: Participants agreed that people who die by suicide were lonely (39,4%), isolated (39,3%), cowardly (35,2%), and irresponsible (35%). The 3-factor structure was adequate, presented good reliability (ωbayes > 0,77, H > 0,83) and gender invariance. In addition, all items discriminated adequately, with item 10 being more accurate in measuring suicide stigma. Conclusions: The Spanish version of the SOSS-SF presents sources of evidence of validity based on content, internal structure, reliability, invariance and item responses. Its use is recommended for the interpretation and inference of its scores in the assessment of stigma towards the suicide in the general adult Peruvian population.

Has Arthroscopic Meniscectomy Use Changed in Response to the Evidence? A Large-database Study From Spain.

BACKGROUND: Several randomized clinical trials on the treatment of meniscal tears have shown that surgery is not superior to nonoperative treatment in middle-aged and older adults. However, clinical practice has not changed consistently worldwide in response to this evidence, and arthroscopic meniscectomy remains one of the most frequently performed operations. QUESTIONS/PURPOSES: (1) How has the use of arthroscopic meniscectomy changed in Spain between 2003 and 2018, particularly in middle-aged (35 to 59 years) and older patients (over 60 years) relative to younger patients? (2) How have surgical volumes changed across different healthcare areas in the same health system? (3) How has the proportion of outpatient versus inpatient arthroscopic procedures changed over time? METHODS: Data on all 420,228 arthroscopic meniscectomies performed in Spain between 2003 and 2018 were obtained through the Atlas of Variations in Medical Practice project (these years were chosen because data in that atlas for 2002 and 2019 were incomplete). This database has been promoted by the Spanish Health Ministry since 2002, and it collects basic information on all admissions to public and public-private partnership hospitals. The Spanish population of 2003 was used to calculate age- and sex-standardized rates of interventions per 10,000 inhabitants and year. To assess the change in standardized rates among the age groups over the study period, a linear regression analysis was used. Standard small-area variation statistics were used to analyze variation among healthcare areas. Data on outpatient surgery and length of stay for inpatient procedures were also included. RESULTS: The standardized rate of arthroscopic meniscectomy in Spain in 2003 was 4.8 procedures per 10,000 population (95% CI 3.9 to 5.6), while in 2018, there were 6.3 procedures per 10,000 population (95% CI 5.4 to 7.3), which represents an increase of 33%. Standardized rates increased slightly in the age group < 35 years (0.06 interventions per 10,000 inhabitants per year [95% CI 0.05 to 0.08]), whereas they increased more markedly in the age groups of 35 to 59 years (0.14 interventions per 10,000 inhabitants per year [95% CI 0.11 to 0.17]) and in those 60 years and older (0.13 interventions per 10,000 inhabitants per year [95% CI 0.09 to 0.17]). The variability among healthcare areas in the meniscectomy rate progressively decreased from 2003 to 2018. In 2003, 32% (6544 of 20,384) of knee arthroscopies were performed on an outpatient basis, while in 2018, these accounted for 67% (19,573 of 29,430). CONCLUSION: We observed a progressive increase in arthroscopic meniscectomies in Spain; this procedure was more prevalent in older patients presumed to have degenerative pathologic findings. This increase occurred despite increasing high-level evidence of a lack of the additional benefit of meniscectomy over other less-invasive treatments in middle-aged and older people. Our study highlights the need for action in health systems with the use of financial, regulatory, or incentive strategies to reduce the use of low-value procedures, as well as interventions to disseminate the available evidence to clinicians and patients. Research is needed to identify the barriers that are preventing the reversal of interventions that high-quality evidence shows are ineffective. LEVEL OF EVIDENCE: Level III, therapeutic study.

¿Es efectivo promover el ejercicio físico para facilitar la reincorporación al trabajo después de un cáncer? / Is it effective to promote physical exercise to facilitate return to work after cancer?

Este trabajo es un comentario del artículo: Wilson TN, Nambiema A, Porro B, Descatha A, Aublet-Cuvelier A, Evanoff B, Roquelaure Y. Effectiveness of Physical Activity Interventions on Return to Work After a Cancer Diagnosis: A Systematic Review and Meta-analysis. J Occup Rehabil. 2022. doi: 10.1007/s10926-022-10052-9. (AU)

This text is a commentary on the article: Wilson TN, Nambiema A, Porro B, Descatha A, Au-blet-Cuvelier A, Evanoff B, Roquelaure Y. Effectiveness of Physical Activity Interventions on Return to Work After a Cancer Diagnosis: A Systematic Review and Meta-analysis. J Occup Rehabil. 2022. doi: 10.1007/s10926-022-10052-9 (AU)

[Self-perceived health status in health workers 3 and 6 months after a SARS-CoV-2 infection (COVID-19).] / Estado de salud autopercibido del personal sanitario 3 y 6 meses después de infección por el virus SARS-CoV-2 (COVID-19).

OBJECTIVE: After the acute period of infection by the SARS-CoV-2 virus (COVID-19), multi-organ signs and symptoms may remain. This study tried to compare the perception of the state of health and the sequelae in Navarra-Osasunbidea health workers after COVID-19, with the previous situation through the Health Survey. METHODS: Through a descriptive cross-sectional study, using a reduced questionnaire from the 2017 National Health Survey sent to health workers from the Navarre-Osasunbidea Health Service COVID-19 cases after 3 and 6 months, from April to July 2021 and compared with 2017. Differences were described through means, percentages and prevalence ratio, with 95% confidence intervals. RESULTS: Of 938 surveys sent, 93 of 3 months (46.3%) and 305 of 6 months (41.4%) were received, 87% of women and 13% of men and 43 years of average age and 64.3% were from nursing and 19.1% from medicine. The percentage that assessed their health status as good or very good was significantly lower at 6 months than health workers and the general population in 2017 (70.2% vs 80.4% and 75.5%), the limitation for the habitual activity (39.8% and 35.1% vs 18.3%), headache 2.7 times more frequent, the days of activity restriction (41.5 and 26.7 vs 7.5) and on bed. Mental health problems, concentration (45.2% and 43.9%), loss of sleep (44.1% and 43.3%) and consumption of tranquilizers and antidepressants (2 and 3 times more) stood out, although not of medical consultations. CONCLUSIONS: Navarre health workers diagnosed with COVID-19 in 2020 and early 2021 refer to the worst assessment of their health status at 3 and 6 months, greater limitation for usual activities, more frequent headaches and mental health problems, compared to the pre-pandemic period.

OBJETIVO: Pasado el período agudo de infección por el virus SARS-CoV-2 (COVID-19), pueden permanecer signos y síntomas multiorgánicos. Este estudio trató de comparar la percepción del estado de salud y las secuelas en los sanitarios navarros pasada la COVID-19, con la situación previa mediante Encuesta de Salud. METODOS: Estudio descriptivo transversal, mediante un cuestionario reducido de la Encuesta Nacional de Salud 2017 remitido a los sanitarios del Servicio Navarro de Salud-Osasunbidea, casos de COVID-19 pasados 3 y 6 meses, de abril a julio de 2021 y se comparó con 2017. Se describieron diferencias mediante medias, porcentajes y razón de prevalencia, con intervalos de confianza al 95%. RESULTADOS: De 938 encuestas enviadas, se recibieron 93 de 3 meses (46,3%) y 305 de 6 meses (41,4%), 87% de mujeres y 13% de hombres y 43 años de media de edad. El 64,3% fueron de enfermería y 19,1% de medicina. El porcentaje que valoró su estado de salud como bueno o muy bueno fue significativamente inferior a los 6 meses que sanitarios y población general en 2017 (70,2 % vs. 80,4% y 75,5%), mayor el de limitación para la actividad habitual (39,8% y 35,1% vs 18,3%), 2,7 veces más frecuente el dolor de cabeza y más los días de restricción de actividad (41,5 y 26,7 vs. 7,5) y en cama. Destacaron los problemas de salud mental, concentración (45,2% y 43,9%), pérdida de sueño (44,1% y 43,3%) y consumo de tranquilizantes y antidepresivos (2 y 3 veces más), aunque no de consultas médicas. CONCLUSIONES: Los sanitarios navarros diagnosticados de COVID-19 en 2020 y principios de 2021 refieren a los 3 y 6 meses peor valoración de su estado de salud, mayor limitación para las actividades habituales, más frecuente dolor de cabeza y problemas de salud mental, respecto a período prepandemia.

Estado de salud autopercibido del personal sanitario 3 y 6 meses después de infección por el virus SARS-CoV-2 (COVID-19) / Self-perceived health status in health workers 3 and 6 months after a SARS-CoV-2 infection (COVID-19)

Fundamentos: Pasado el período agudo de infección por el virus SARS-CoV-2 (COVID-19), pueden permanecer signos y síntomas multiorgánicos. Este estudio trató de comparar la percepción del estado de salud y las secuelas en los sanitarios navarros pasada la COVID-19, con la situación previa mediante Encuesta de Salud. Métodos: Estudio descriptivo transversal, mediante un cuestionario reducido de la Encuesta Nacional de Salud 2017 remitido a los sanitarios del Servicio Navarro de Salud-Osasunbidea, casos de COVID-19 pasados 3 y 6 meses, de abril a julio de 2021 y se comparó con 2017. Se describieron diferencias mediante medias, porcentajes y razón de prevalencia, con intervalos de confianza al 95%. Resultados: De 938 encuestas enviadas, se recibieron 93 de 3 meses (46,3%) y 305 de 6 meses (41,4%), 87% de mujeres y 13% de hombres y 43 años de media de edad. El 64,3% fueron de enfermería y 19,1% de medicina. El porcentaje que valoró su estado de salud como bueno o muy bueno fue significativamente inferior a los 6 meses que sanitarios y población general en 2017 (70,2 % vs. 80,4% y 75,5%), mayor el de limitación para la actividad habitual (39,8% y 35,1% vs 18,3%), 2,7 veces más frecuente el dolor de cabeza y más los días de restricción de actividad (41,5 y 26,7 vs. 7,5) y en cama. Destacaron los problemas de salud mental, concentración (45,2% y 43,9%), pérdida de sueño (44,1% y 43,3%) y consumo de tranquilizantes y antidepresivos (2 y 3 veces más), aunque no de consultas médicas. Conclusiones: Los sanitarios navarros diagnosticados de COVID-19 en 2020 y principios de 2021 refieren a los 3 y 6 meses peor valoración de su estado de salud, mayor limitación para las actividades habituales, más frecuente dolor de cabeza y problemas de salud mental, respecto a período prepandemia.(AU)

Background: After the acute period of infection by the SARS-CoV-2 virus (COVID-19), multirgan signs and symptoms may remain. This study tried to compare the perception of the state of health and the sequelae in Navarra-Osasunbidea health workers after COVID-19, with the previous situation through the Health Survey. Methods: Through a descriptive cross-sectional stuy, using a reduced questionnaire from the 2017 NationalHealth Survey sent to health workers from the Navarre-Osasunbidea Health Service COVID-19 cases after 3 and 6 months, from April to July 2021 and compared with 2017. Differences were described through means, percentages and prevalence ratio, with 95% confidence intervals. Results: Of 938 surveys sent, 93 of 3 months (46.3%) and 305 of 6 months (41.4%) were received, 87% of women and 13% of men and 43 years of average age and 64.3% were from nursing and 19.1% from medicine. The percentage that assessed their health status as good or very good was significantly lower at 6 months th an health workers and the general population in 2017 (70.2% vs 80.4% and 75.5%), the limitation for the habitual activity (39.8% and 35.1% vs 18.3%), headache 2.7 times more frequent, the days of activity restriction (41.5 and 26.7 vs 7.5) and on bed. Mental health problems, concentration (45.2% and 43.9%), loss of sleep (44.1% and 43.3%) and consumption of tranquilizers and antidepressants (2 and 3 times more) stood out, although not of medical consultations. Conclusions: Navarre health workers diagnosed with COVID-19 in 2020 and early 2021 refer to the worst assessment of their health status at 3 and 6 months, greater limitation for usual activities, more frequent headaches and mental health problems, compared to the prepandemic period.(AU)

Study of the Evolution of the Plastic Zone and Residual Stress in a Notched T-6061 Aluminum Sample.

Using experimental measurements and numerical computations, this paper focuses on studying the evolution of the plastic zone and how the residual stresses change in a notched T-6061 aluminum sample. Before the crack initiation, digital image measurements were taken to visualize the evolution of the plastic zone. After the sample was fractured, the material microstructure and the residual stresses around the cracked zone were characterized through optical microscopy and X-ray diffractometry. This article describes in detail how the plastic zone evolved around the notch before the crack initiation and shows the close agreement between experimental and numerical data during the load increment. The surface residual stress values around the tip of the notched sample were also measured and computed to give a better understanding of the affected region during the fracture process.

[Impact of covid-19 vaccination on hospitalization in a third-level hospital.] / Impacto de la vacunación frente a la covid-19 sobre la hospitalización en un hospital de tercer nivel.

OBJECTIVE: This study presents information on the evolution of severe cases of SARS-CoV-2 infection that required hospitalization since the beginning of vaccination in Spain. The objective was to know the impact of vaccination against COVID-19 on the hospitalization of patients with SARS-CoV-2 infection, hospital mortality and readmissions for this cause, and to describe the characteristics of vaccinated patients who required admission. METHODS: A retrospective, observational epidemiological study was conducted of all patients admitted with SARS-CoV-2 infection confirmed by a diagnostic test for active infection (PDIA) in a tertiary hospital, from January 2021 to June 2021. The incidence of admissions was calculated based on the vaccination status of the patients and age groups at different times according to the progress of the strategy of vaccination COVID-19. RESULTS: Between December 27, 2020 and June 30, 2021, 1,308 patients with positive PDIA were admitted to the University Hospital of Salamanca, of which 1,167 (89.2%) were not vaccinated, 129 (9.9%) had received one dose of vaccine and 12 (0.9%) were fully vaccinated. Of the latter, none were admitted to the ICU and 2 died. CONCLUSIONS: Vaccination against COVID-19 has contributed to the decrease in hospitalizations, since February 2021, of older and institutionalized people. Fully vaccinated people have a lower risk of admission to the ICU and death. These data, together with the information available on recent cases of new SARS-CoV-2 infections in unvaccinated young people, are in favor of achieving high vaccination coverage of the entire population in the shortest possible time.

OBJETIVO: Este estudio presenta información sobre la evolución de los casos graves de infección SARS-CoV-2 que requirieron hospitalización desde el inicio de la vacunación en España. El objetivo fue conocer el impacto de la vacunación frente a COVID-19 sobre la hospitalización de pacientes con infección SARS-CoV-2, la mortalidad intrahospitalaria y los reingresos por esta causa, y describir las características de los pacientes vacunados que precisaron ingreso. METODOS: Se realizó un estudio epidemiológico observacional retrospectivo, de todos los pacientes ingresados con infección por SARS-CoV-2 confirmada mediante una prueba de diagnóstico de infección activa (PDIA) en un hospital de tercer nivel, de enero de 2021 a junio de 2021. Se calculó la incidencia de ingresos en función del estado vacunal de los pacientes y grupos de edad en diferentes momentos según el avance de la campaña de vacunación. RESULTADOS: Entre el 27 de diciembre de 2020 y el 30 de junio de 2021 ingresaron en el Hospital Universitario de Salamanca 1.308 pacientes con PDIA positiva, de los cuales 1.167 (89,2%) no estaban vacunados, 129 (9,9%) habían recibido una dosis de vacuna y 12 (0,9%) estaban completamente vacunados. De estos últimos, ninguno ingresó en UCI y 2 fallecieron. CONCLUSIONES: La vacunación frente a COVID-19 ha contribuido al descenso de las hospitalizaciones desde el mes de febrero de 2021, sobre todo en personas mayores e institucionalizadas. Las personas completamente vacunadas parecen tener menor riesgo de ingreso en UCI y fallecimiento. Estos datos, junto con la información disponible de los casos recientes de nuevas infecciones por SARS-CoV-2 en personas jóvenes no vacunadas, están a favor de conseguir una cobertura vacunal elevada de toda la población en el menor tiempo posible.

Impacto de la vacunación frente a la COVID-19 sobre la hospitalización en un hospital de tercer nivel / Impact of COVID-19 vaccination on hospitalization in a third-level hospital

Fundamentos: Este estudio presenta información sobre la evolución de los casos graves de infección SARS-CoV-2 que requirieron hospitalización desde el inicio de la vacunación en España. El objetivo fue conocer el impacto de la vacunación frente a COVID-19 sobre la hospitalización de pacientes con infección SARS-CoV-2, la mortalidad intrahospitalaria y los reingresos por esta causa, y describir las características de los pacientes vacunados que precisaron ingreso. Métodos: Se realizó un estudio epidemiológico observacional retrospectivo, de todos los pacientes ingresados con infección por SARS-CoV-2 confirmada mediante una prueba de diagnóstico de infección activa (PDIA) en un hospital de tercer nivel, de enero de 2021 a junio de 2021. Se calculó la incidencia de ingresos en función del estado vacunal de los pacientes y grupos de edad en diferentes momentos según el avance de la campaña de vacunación. Resultados: Entre el 27 de diciembre de 2020 y el 30 de junio de 2021 ingresaron en el Hospital Universitario de Salamanca 1.308 pacientes con PDIA positiva, de los cuales 1.167 (89,2%) no estaban vacunados, 129 (9,9%) habían recibido una dosis de vacuna y 12 (0,9%) estaban completamente vacunados. De estos últimos, ninguno ingresó en UCI y 2 fallecieron. Conclusiones: La vacunación frente a COVID-19 ha contribuido al descenso de las hospitalizaciones desde el mes de febrero de 2021, sobre todo en personas mayores e institucionalizadas. Las personas completamente vacunadas parecen tener menor riesgo de ingreso en UCI y fallecimiento. Estos datos, junto con la información disponible de los casos recientes de nuevas infecciones por SARS-CoV-2 en personas jóvenes no vacunadas, están a favor de conseguir una cobertura vacunal elevada de toda la población en el menor tiempo posible.(AU)

Background: This study presents information on the evolution of severe cases of SARS-CoV-2 infection that required hospitalization since the beginning of vaccination in Spain. The objective was to know the impact of vaccination against COVID-19 on the hospitalization of patients with SARS-CoV-2 infection, hospital mortality and readmissions for this cause, and to describe the characteristics of vaccinated patients who required admission. Methods: A retrospective, observational epidemiological study was conducted of all patients admitted with SARS-CoV-2 infection confirmed by a diagnostic test for active infection (PDIA) in a tertiary hospital, from January 2021 to June 2021. The incidence of admissions was calculated based on the vaccination status of the patients and age groups at different times according to the progress of the strategy of vaccination COVID-19. Results: Between December 27, 2020 and June 30, 2021, 1,308 patients with positive PDIA were admitted to the University Hospital of Salamanca, of which 1,167 (89.2%) were not vaccinated, 129 (9.9%) had received one dose of vaccine and 12 (0.9%) were fully vaccinated. Of the latter, none were admitted to the ICU and 2 died. Conclusions: Vaccination against COVID-19 has contributed to the decrease in hospitalizations, since February 2021, of older and institutionalized people. Fully vaccinated people have a lower risk of admission to the ICU and death. These data, together with the information available on recent cases of new SARS-CoV-2 infections in unvaccinated young people, are in favor of achieving high vaccination coverage of the entire population in the shortest possible time.(AU)

[Impact of the variability of criteria for the return to work of healthcare workers with COVID-19 disease: Multicenter study in Navarra, La Rioja and Galicia. March-September 2020.] / Impacto de la variabilidad de criterios para el retorno al trabajo del personal sanitario con enfermedad COVID-19: Estudio multicéntrico en Navarra, La Rioja y Galicia. Marzo-septiembre de 2020.

OBJECTIVE: The COVID-19 pandemic caused by the SARS-CoV-2 virus has generated a great burden on health systems, and healthcare workers have been the most affected. In Spain, the Health Ministry issued common protocols regarding the return-to-work of healthcare workers presenting a negative PCR (Polymerase Chain Reaction) test result and complete resolution of symptoms. Some autonomous communities decided to include a CT (Cycle Threshold) value criterion as well. The aim of this paper was to compare the time intervals required to obtain a negative PCR result by means of both criteria. METHODS: A multicenter, cross-sectional study was performed from March to September of 2020, in the health areas of Navarra, La Rioja and Vigo (Galicia), managed by their own Occupational Risk Prevention Units. The PCR negativization time intervals were analyzed according to gender, age, professional category and the PCR repetition criteria used (clinical or defined by CT). Mean difference calculation by Student's t-test and Kaplan-Meier survival analyzes were conducted. RESULTS: The sample amounted to a total of 1,052 workers: 673 from Navarra, 335 from La Rioja and 44 from Vigo, with an average age of 46 years, and of which 81% were women, 35.48% nursing personnel and 23.65% physicians. No statistically significant differences were found between the PCR negativization time periods with any of the variables, except with the CT criterion, which presented a mean of 6.49 days (95% CI, 4.96-8.02), longer and displaying positively displaced survival curves. CONCLUSIONS: The CT criterion for carrying out the control PCR test lengthened the reincorporation of essential personnel in the fight against the pandemic.

OBJETIVO: La pandemia de COVID-19 por el virus SARS-CoV-2 ha supuesto un gran compromiso de los sistemas sanitarios y sus profesionales han sido los más afectados. En España, desde el Ministerio de Sanidad se aprobaron protocolos comunes para la reincorporación laboral de los profesionales afectados con una prueba PCR (Polymerase Chain Reaction) negativa y resolución de síntomas. Algunas comunidades autónomas decidieron incorporar el umbral de ciclo o CT (Cycle Thresholdi>) para esta determinación. El objetivo de este estudio fue comparar el tiempo requerido para la negativización de la PCR según ambos criterios. METODOS: Se realizó un estudio multicéntrico transversal de marzo a septiembre de 2020, de los profesionales sanitarios de 3 áreas sanitarias, Navarra, La Rioja y Vigo (Galicia) atendidos por sus Servicios de Prevención de Riesgo Laborales. Se analizó la diferencia de tiempo de negativización de la PCR según edad y sexo, categoría profesional y criterio de repetición de PCR (CT o clínico). Se calcularon diferencia de medias mediante t-Student y Kaplan-Meier de análisis de supervivencia. RESULTADOS: La muestra comprendió 1.052 trabajadores, 673 de Navarra, 335 de La Rioja y 44 de Vigo (Galicia) de 46 años de media de edad, 81% mujeres, 35,48% de enfermería y 23,65% médicos. No se encontraron diferencias estadísticamente significativas entre el tiempo de negativización de la PCR con ninguna variable excepto con el criterio CT, de media 6,49 días (IC95% 4,96-8,02) más prolongado y curvas de supervivencia desplazadas positivamente. CONCLUSIONES: El criterio CT para la realización de la PCR de control para el retorno laboral supuso una prolongación en la reincorporación del personal esencial en la lucha contra la pandemia.

Early Imaging and Molecular Changes with Neoadjuvant Bevacizumab in Stage II/III Breast Cancer.

This prospective, phase II study evaluated novel biomarkers as predictors of response to bevacizumab in patients with breast cancer (BC), using serial imaging methods and gene expression analysis. Patients with primary stage II/III BC received bevacizumab 15 mg/kg (cycle 1; C1), then four cycles of neoadjuvant docetaxel doxorubicin, and bevacizumab every 3 weeks (C2-C5). Tumour proliferation and hypoxic status were evaluated using 18F-fluoro-3'-deoxy-3'-L-fluorothymidine (FLT)- and 18F-fluoromisonidazole (FMISO)-positron emission tomography (PET) at baseline, and during C1 and C5. Pre- and post-bevacizumab vascular changes were evaluated using dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI). Molecular biomarkers were assessed using microarray analysis. A total of 70 patients were assessed for treatment efficacy. Significant decreases from baseline in tumour proliferation (FLT-PET), vascularity, and perfusion (DCE-MRI) were observed during C1 (p ≤ 0.001), independent of tumour subtype. Bevacizumab treatment did not affect hypoxic tumour status (FMISO-PET). Significant changes in the expression of 28 genes were observed after C1. Changes in vascular endothelial growth factor receptor (VEGFR)-2p levels were observed in 65 patients, with a > 20% decrease in VEGFR-2p observed in 13/65. Serial imaging techniques and molecular gene profiling identified several potentially predictive biomarkers that may predict response to neoadjuvant bevacizumab therapy in BC patients.

La educación alimentaria y nutricional: un estudio descriptivo en la formación del docente de Biología / Food and nutritional education: descriptive study in the training of Biology teachers

RESUMEN Introducción: el docente de Biología debe contribuir a la educación para la salud, y dentro de ella a la educación alimentaria y nutricional de los estudiantes, mediante el proceso de enseñanza-aprendizaje de los contenidos relacionados con la Biología. Objetivo: describir los conocimientos y comportamientos sobre educación alimentaria y nutricional que poseen los estudiantes de la carrera de Licenciatura en Educación, especialidad Biología, en la Universidad de Matanzas. Materiales y métodos: se realizó un estudio descriptivo de los conocimientos y comportamientos sobre educación alimentaria y nutricional en 21 estudiantes de la carrera de Licenciatura en Educación, especialidad Biología, de la Universidad de Matanzas, en enero de 2020. Los métodos teóricos empleados fueron el histórico-lógico, el analítico-sintético y el inductivo-deductivo. Como método empírico se utilizó la encuesta. Resultados: los estudiantes presentan insuficientes conocimientos sobre los nutrientes que aportan diversos alimentos, y desconocimiento sobre las biomoléculas y su importancia para el correcto funcionamiento del organismo. Muestran interés por el consumo de la comida denominada chatarra, y obvian la necesidad del consumo de vegetales, frutas y viandas hervidas. Conclusiones: los estudiantes encuestados presentaron limitados conocimientos sobre alimentación y nutrición como procesos inherentes a la vida humana, que determinan la educación alimentaria y nutricional como un factor básico para evitar enfermedades que repercuten en su salud, e impiden que puedan realizar su labor educativa como docentes de Biología, líderes de la promoción de salud en la escuela y la comunidad (AU).

ABSTRACT Introduction: the teacher who teaches Biology must make good use of the different curricular contents to contribute to health education and within it to food and nutritional education of students. Objective: to describe the knowledge and behaviors on food and nutrition education that students of the degree course of Education in Biology of the University of Matanzas have. Materials and methods: a descriptive study of the knowledge and behavior on food and nutritional education in 21 students of the degree course of Education in Biology of the University of Matanzas, in January 2020. The theoretical methods used were the historic-logical, the analytical-synthetic, and the inductive-deductive one. The survey was used as empiric method. Results: the students showed not enough knowledge on the nutrients provided by different foods, not knowing about biomolecules and their importance for the proper functioning of the body. They evidenced their preference for the consumption of the so called junk food, obviating the need of green vegetables, fruits and boiled vegetables. Conclusions: the surveyed students presented limited knowledge on food and nutrition as processes inherent to human life, which determine food and nutritional education as a basic factor to avoid diseases that affect their health. It is a constraint for carrying out an adequate educative work as Biology teachers and future leaders of health promotion at school and in the community (AU).

[Programs for Asbestos Abatement. Lessons from Poland]. / Programas de eliminación del Amianto. Lecciones desde Polonia.

The commercialization of asbestos in Europe in the second half of the 20th century translated into consumption of millions of tons of this material. Occupational exposure to asbestos is controlled under the 2009 European Union Directive. Currently, through epidemiological surveillance and pathology registries (mainly mesotheliomas), it is possible to record past exposures. Despite prohibiting its use, large amounts of asbestos remain in buildings, infrastructures and vehicles, among others. The road to elimination of existing asbestos began with a 2013 European Parliament Resolution and the Opinion of the European Economic and Social Committee (2015 / C 251/03).To better understand barriers to implementing these plans, we reviewed the experience in Poland the only country that to date has implemented an action plan with great financial support, together with actions carried out in Spain generally, and Navarre specifically, given the latter's exhaustive registry of exposed workers.The enormous economic effort required to implement these plans, along with the environmental risks associated with asbestos abatement, require detailed planning, which should consider understanding why the objectives set by Poland, a benchmark country, have not been achieved to date.

La exposición laboral se ha controlado a partir de la Directiva de 2009 y, en la actualidad, mediante vigilancia epidemiológica, se registran las patologías, mesoteliomas fundamentalmente, por exposiciones pasadas.  Después de prohibida su utilización, aún permanecen cantidades ingentes en edificios, infraestructuras y vehículos, entre otros. Con el objetivo de conocer las dificultades de estos planes se ha revisado el de Polonia, único país que hasta la fecha, ha implementado un plan de acción con un gran respaldo financiero y las actuaciones llevadas a cabo en relación con la exposición a amianto en España y, Navarra en concreto por contar con un registro exhaustivo de trabajadores expuestos.  El enorme esfuerzo económico que precisan estos planes y los riesgos medioambientales que suponen, merecen una precisa planificación, que exige conocer el no alcance hasta la fecha actual de los objetivos planteados en Polonia, país referente.