Rapid antibiotic susceptibility testing (RAST) of blood cultures in enterobacteria with inducible chromosomal AmpC-type ß-lactamase.

INTRODUCTION: Early and adequate treatment of bloodstream infections decreases patient morbidity and mortality. The objective is to develop a preliminary method for rapid antibiotic susceptibility testing (RAST) in enterobacteria with inducible chromosomal AmpC. METHODS: RAST was performed directly on spiked blood cultures of 49 enterobacteria with inducible chromosomal AmpC. Results were read at 4, 6 and 8h of incubation. Commercial broth microdilution was considered the reference method. Disks of 10 antibiotics were evaluated. RESULTS: The proportion of readable tests at 4h was 85%. All RAST could be read at 6 and 8h. For most antibiotics, the S or R result at 4, 6 and 8h was greater than 80% after tentative breakpoints were established and Area of Technical Uncertainty was defined. CONCLUSIONS: This preliminary method seems to be of practical use, although it should be extended to adjust the breakpoints and differentiate them by species.

Circulating PACAP levels are associated with altered imaging measures of entorhinal cortex neurite density in posttraumatic stress disorder.

Introduction: Pituitary adenylate cyclase-activating polypeptide (PACAP) regulates plasticity in brain systems underlying arousal and memory and is associated with posttraumatic stress disorder (PTSD). Research in animal models suggests that PACAP modulates entorhinal cortex (EC) input to the hippocampus, contributing to impaired contextual fear conditioning. In PTSD, PACAP is associated with higher activity of the amygdala to threat stimuli and lower functional connectivity of the amygdala and hippocampus. However, PACAP-affiliated structural alterations of these regions have not been investigated in PTSD. Here, we examined whether peripheral PACAP levels were associated with neuronal morphology of the amygdala and hippocampus (primary analyses), and EC (secondary) using Neurite Orientation Dispersion and Density Imaging.Methods: Sixty-four (44 female) adults (19 to 54 years old) with DSM-5 Criterion A trauma exposure completed the Clinician-Administered PTSD Scale (CAPS-5), a blood draw, and magnetic resonance imaging. PACAP38 radioimmunoassay was performed and T1-weighted and multi-shell diffusion-weighted images were acquired. Neurite Density Index (NDI) and Orientation Dispersion Index (ODI) were quantified in the amygdala, hippocampus, and EC. CAPS-5 total score and anxious arousal score were used to test for clinical associations with brain structure.Results: Higher PACAP levels were associated with greater EC NDI (ß = 0.0099, q = 0.032) and lower EC ODI (ß = -0.0073, q = 0.047), and not hippocampal or amygdala measures. Neither EC NDI nor ODI was associated with clinical measures.Conclusions: Circulating PACAP levels were associated with altered neuronal density of the EC but not the hippocampus or amygdala. These findings strengthen evidence that PACAP may impact arousal-associated memory circuits in PTSD.

PACAP was associated with altered entorhinal cortex neurite density in PTSD.PACAP was not associated with altered neurite density in amygdala or hippocampus.PACAP may impact arousal-associated memory circuits.

Los retos en la evaluación radiológica de las metástasis cerebrales, más allá de la progresión / Challenges in radiological evaluation of brain metastases, beyond progression

La resonancia magnética es la piedra angular en la evaluación de las metástasis cerebrales. Los retos clínicos residen en discriminar las metástasis de imitadores como infecciones o tumores primarios y en evaluar la respuesta al tratamiento. Este, en ocasiones, condiciona un crecimiento, que debe encuadrarse como una pseudoprogresión o una radionecrosis, ambos fenómenos inflamatorios atribuibles al mismo, o bien considerarse como una recurrencia. Para responder a estas necesidades, las técnicas de imagen son objeto de constantes investigaciones. No obstante, un crecimiento exponencial tras la radioterapia debe interpretarse con cautela, incluso ante resultados sospechosos de progresión por técnicas avanzadas, ya que puede tratarse de una radionecrosis. El objetivo de este trabajo es familiarizar al lector con los fenómenos inflamatorios de las metástasis cerebrales tratadas con radioterapia y describir dos signos radiológicos relacionados: la «nube inflamatoria» y el «realce en anillo incompleto», con el fin de adoptar un manejo conservador en estos casos.(AU)

MRI is the cornerstone in the evaluation of brain metastases. The clinical challenges lie in discriminating metastases from mimickers such as infections or primary tumors and in evaluating the response to treatment. The latter sometimes leads to growth, which must be framed as pseudo-progression or radionecrosis, both inflammatory phenomena attributable to treatment, or be considered as recurrence. To meet these needs, imaging techniques are the subject of constant research. However, an exponential growth after radiotherapy must be interpreted with caution, even in the presence of results suspicious of tumor progression by advanced techniques, because it may be due to inflammatory changes. The aim of this paper is to familiarize the reader with inflammatory phenomena of brain metastases treated with radiotherapy and to describe two related radiological signs: «the inflammatory cloud» and «incomplete ring enhancement», in order to adopt a conservative management with close follow-up.(AU)

Rapid antibiotic susceptibility testing (RAST) of blood cultures in enterobacteria with inducible chromosomal AmpC-type B-lactamase / Pruebas rápidas de sensibilidad antibiótica de hemocultivos con enterobacterias portadoras de B-lactamasa tipo AmpC cromosómica inducible

Introduction: Early and adequate treatment of bloodstream infections decreases patient morbidity and mortality. The objective is to develop a preliminary method for rapid antibiotic susceptibility testing (RAST) in enterobacteria with inducible chromosomal AmpC. Methods: RAST was performed directly on spiked blood cultures of 49 enterobacteria with inducible chromosomal AmpC. Results were read at 4, 6 and 8h of incubation. Commercial broth microdilution was considered the reference method. Disks of 10 antibiotics were evaluated. Results: The proportion of readable tests at 4h was 85%. All RAST could be read at 6 and 8h. For most antibiotics, the S or R result at 4, 6 and 8h was greater than 80% after tentative breakpoints were established and Area of Technical Uncertainty was defined. Conclusions: This preliminary method seems to be of practical use, although it should be extended to adjust the breakpoints and differentiate them by species.(AU)

Introducción: El tratamiento precoz y adecuado de las bacteriemias disminuye la morbilidad y mortalidad de los pacientes. El objetivo es desarrollar un método preliminar de pruebas rápidas de sensibilidad antibiótica (PRSA) en enterobacterias con AmpC cromosómica inducible. Métodos: Las PRSA se realizaron directamente de hemocultivos simulados positivos para 49 enterobacterias con AmpC cromosómica inducible. Los resultados se leyeron a las 4, 6 y 8 horas de incubación. La microdilución en caldo comercial se consideró el método de referencia. Se evaluaron discos de 10 antibióticos. Resultados: La proporción de pruebas legibles a las 4 horas fue del 85%. Todas las PRSA pudieron leerse a las 6 y 8 horas. Para la mayoría de los antibióticos, el resultado S o R a las 4, 6 y 8 horas fue superior al 80%, después de que se establecieran puntos de corte provisionales y se definiera el área de incertidumbre técnica. Conclusiones: Este método preliminar parece ser de utilidad práctica, aunque debería ampliarse para ajustar los puntos de corte y diferenciar por especies.(AU)

Challenges in radiological evaluation of brain metastases, beyond progression.

MRI is the cornerstone in the evaluation of brain metastases. The clinical challenges lie in discriminating metastases from mimickers such as infections or primary tumors and in evaluating the response to treatment. The latter sometimes leads to growth, which must be framed as pseudo-progression or radionecrosis, both inflammatory phenomena attributable to treatment, or be considered as recurrence. To meet these needs, imaging techniques are the subject of constant research. However, an exponential growth after radiotherapy must be interpreted with caution, even in the presence of results suspicious of tumor progression by advanced techniques, because it may be due to inflammatory changes. The aim of this paper is to familiarize the reader with inflammatory phenomena of brain metastases treated with radiotherapy and to describe two related radiological signs: "the inflammatory cloud" and "incomplete ring enhancement", in order to adopt a conservative management with close follow-up.

Publicação em inglês: um novo marco editorial dos Cadernos Ibero-Americanos de Direito Sanitário / Publication in English: a new editorial milestone for Cadernos Ibero-Americanos de Direito Sanitário / Publicación en Inglés: un nuevo hito editorial de los Cadernos Ibero-Americanos de Direito Sanitário

Os avanços tecnológicos impactaram diretamente a forma como a ciência é comunicada, reduzindo fronteiras e conectando indivíduos, mas a barreira linguística ainda persiste como um obstáculo significativo para a colaboração entre pesquisadores e a disseminação do conhecimento. Publicações em inglês têm alcance ampliado, viabilizando a difusão dos resultados dos estudos e pesquisas dos periódicos nacionais. Os Cadernos Ibero-Americanos de Direito Sanitário (CIADS), na esteira dessa vanguarda, passam a publicar seus artigos originais, resenhas e comunicações breves em inglês, sem custo para o autor, além da manutenção do idioma original. Este importante passo marca uma inovadora trajetória editorial do periódico, rumo à sua internacionalização.

Los avances tecnológicos han impactado directamente la forma en que se comunica la ciencia, reduciendo fronteras y conectando individuos, pero la barrera lingüística aún persiste como un obstáculo significativo para la colaboración entre investigadores y la difusión del conocimiento. Las publicaciones en inglés han ampliado su alcance, facilitando la difusión de los resultados de estudios e investigaciones en revistas nacionales. Siguiendo esta vanguardia, los Cadernos Ibero-Americanos de Direito Sanitário (CIADS) ahora publicarán sus artículos originales, reseñas y comunicaciones breves en inglés, sin costo para el autor, además de mantener el idioma original. Este importante paso marca una trayectoria editorial innovadora del periódico hacia su internacionalización.

Technological advances have directly impacted the way science is communicated, reducing borders and connecting individuals, but the language barrier still persists as a significant obstacle to collaboration between researchers and the dissemination of knowledge. Publications in English have a wider reach, making it possible to disseminate the results of studies and research in national journals. Cadernos Ibero-Americanos de Direito Sanitário (CIADS), in the wake of this vanguard, is now publishing its original articles, reviews and short communications in English, at no cost to the author, in addition to maintaining the original language. This important step marks the journal's innovative editorial path towards internationalization.

Use of podcasts for health education: a scoping review / Uso de podcasts para educación en salud: una revisión de alcance / Uso de podcasts para educação em saúde: uma revisão de escopo

ABSTRACT Objectives: to map the scientific evidence related to the characteristics, themes, and outcomes of using health education podcasts aimed at individuals over 18 years of age in intra or extrahospital environments. Methods: a scoping review, based on the Joanna Briggs Institute method, conducted in 11 databases, including studies from 2004 to 2022. Results: 11 studies were selected, categorized, highlighting the characteristics, evaluated outcomes, areas, and conditions of podcast application, indicating it as an effective tool for promoting behavioral change, health promotion, and social interaction, demonstrating its potential to improve well-being, quality of life, and user/client autonomy. Conclusions: the use of podcasts proves to be an effective, innovative, and low-cost tool, with a significant social impact, being effective for behavioral change, satisfaction, and social interaction. However, the lack of comprehensive studies on podcast development methodologies represents challenges to be overcome.

RESUMEN Objetivos: mapear las evidencias científicas relacionadas con las características, temáticas y resultados del uso de podcasts de educación en salud dirigidos a individuos mayores de 18 años en entornos intra o extrahospitalarios. Métodos: revisión de alcance, basada en el método del Joanna Briggs Institute, realizada en 11 bases de datos, incluyendo estudios de 2004 a 2022. Resultados: se seleccionaron 11 estudios, categorizados y destacando las características, resultados evaluados, áreas y condiciones de aplicación del podcast, señalándolo como una herramienta eficaz para promover el cambio de comportamiento, la promoción de la salud y la interacción social, evidenciando su potencial para mejorar el bienestar, la calidad de vida y la autonomía de los usuarios/clientes. Conclusiones: el uso del podcast demuestra ser una herramienta eficaz, innovadora y de bajo costo, con un impacto social significativo, siendo eficaz para el cambio de comportamiento, la satisfacción y la interacción social. Sin embargo, la falta de estudios exhaustivos sobre las metodologías de desarrollo de podcasts representa desafíos a superar.

RESUMO Objetivos: mapear as evidências científicas relacionadas às características, temáticas e desfechos do uso de podcasts de educação em saúde direcionados para indivíduos maiores de 18 anos nos ambientes intra ou extrahospitalares. Métodos: revisão de escopo, baseando-se no método do Joanna Briggs Institute, realizada em 11 bases de dados, incluindo estudos de 2004 a 2022. Resultados: foram selecionados 11 estudos, categorizados e destacando as características, desfechos avaliados, áreas e condições de aplicação do podcast, apontando-o como uma ferramenta eficaz para promover a mudança comportamental, a promoção da saúde e a interação social, evidenciando seu potencial para melhorar o bem-estar, qualidade de vida e autonomia dos usuários/clientes. Conclusões: o uso do podcast demonstra ser uma ferramenta eficaz, inovadora e de baixo custo, com impacto social significativo, sendo eficaz para mudança comportamental, satisfação e interação social. No entanto, a falta de estudos abrangentes sobre as metodologias de desenvolvimento de podcasts representam desafios a serem superados.

El renacimiento tecnológico de la Radiología: la revolución open source y la inteligencia artificial

El campo de la radiología ha experimentado avances notables en las últimas décadas, con desarrollos que van desde la mejora de la calidad y digitalización de las imágenes hasta la detección asistida por computadora. Particularmente, la aparición de técnicas de Inteligencia Artificial basadas en Deep Learning y Visión Computacional han promovido soluciones innovadoras en el diagnóstico y el análisis radiológico. Se explora la relevancia de los desarrollos y modelos open source en el progreso de estas técnicas, resaltando el impacto que la colaboración y el acceso abierto han tenido en el avance científico del campo. La investigación tiene un enfoque cualitativo, con alcance descriptivo y retrospectivo, de corte longitudinal. Se realizó un análisis documental de la evolución y el impacto del open source en la Radiología, poniendo de relieve la colaboración multidisciplinar. Se examinaron casos de uso, ventajas, desafíos y consideraciones éticas en relación con la implementación de soluciones basadas en Inteligencia Artificial en Radiología. El enfoque open source ha mostrado ser una influencia positiva en la Radiología, con potencial para influir en la atención médica, ofreciendo soluciones más precisas y accesibles. No obstante, se presentan desafíos éticos y técnicos que requieren atención.

The field of radiology has seen notable advances in recent decades, with developments ranging from image quality improvement and digitization to computer-aided detection. Particularly, the emergence of Artificial Intelligence techniques based on Deep Learning and Computer Vision have promoted innovative solutions in diagnosis and radiological analysis. This article explores the relevance of open source developments and models in the progress of these techniques, highlighting the impact that collaboration and open access have had on the scientific advancement in this field. This research has a qualitative approach, with a descriptive, retrospective, longitudinal scope. A documentary analysis of the evolution and impact of open source in Radiology was carried out, highlighting multidisciplinary collaboration. Use cases, advantages, challenges and ethical considerations were also examined in relation to the implementation of AI-based solutions in Radiology. The Open Source approach has been shown to be a positive influence in Radiology, with the potential to influence medical care, offering more precise and accessible solutions. However, there are ethical and technical challenges that require attention.

Recommendations of the Spanish Antibiogram Committee (COESANT) for in vitro susceptibility testing of antimicrobial agents by disk diffusion / Recomendaciones del Comité Español del Antibiograma (COESANT) para el estudio de sensibilidad in vitro a los antimicrobianos por difusión con discos

Disk diffusion is a well standardized method that provides reliable categorical results to guide antimicrobial therapy in numerous types of infections. Based on the guidelines of the European Committee on Antimicrobial Susceptibility Testing (EUCAST), which are widely implemented in Spain, the Spanish Antibiogram Committee (COESANT) has drawn up recommendations for antimicrobial selection by the disk diffusion technique, including selective reporting and its use for the detection of resistance mechanisms. Factors affecting disk diffusion results, along with advantages and shortcomings of the method, are also discussed.(AU)

La difusión con discos es un método estandarizado que proporciona resultados fiables para guiar la terapia antimicrobiana en numerosos tipos de infecciones. En base a las directrices del European Committee on Antimicrobial Susceptibility Testing (EUCAST), ampliamente implantadas en España, el Comité Español del Antibiograma (COESANT) ha elaborado recomendaciones para la selección de antimicrobianos para ser estudiados mediante la técnica de difusión con discos, su notificación selectiva en el informe de sensibilidad y su uso para la detección de mecanismos de resistencia. También se discuten los factores que afectan los resultados obtenidos mediante la técnica de difusión con discos junto con las ventajas y desventajas del método.(AU)

Utilidad de la secuencia de susceptibilidad como predictor de penumbra en la isquemia cerebral aguda / Utility of susceptibility sequence as a predictor of penumbra in acute cerebral ischemia

Resumen Objetivo: El objetivo del tratamiento en accidente cerebrovascular (ACV) isquémico agudo es restablecer la circulación en el área de la penumbra isquémica. La secuencia de susceptibilidad (SWI) puede detectar cambios en el calibre de las venas intracraneanas cuando se altera la relación desoxiHb/oxiHb en áreas hipoperfundidas, lo que permitiría una detección temprana de penumbra isquémica. Material y métodos: Estudio de cohorte retrospectivo. Se incluyeron pacientes con infartos agudos en territorio de la arteria cerebral media. Se evaluaron las secuencias difusión y SWI iniciales y un estudio de control a los siete días. La extensión del ACV se midió con la escala ASPECT en difusión y SWI del ingreso, y en el estudio de control. Se estableció una discordancia SWI/difusión > 2 puntos como variable predictora y la extensión final del infarto como variable de resultado. Resultados: Se incluyeron 31 pacientes, mediana de edad de 72 años (RIC: 61-81). En 13 pacientes se detectó una oclusión vascular proximal, ocho de los cuales tenían discordancia SWI/difusión > 2 puntos (p < 0,0001). En cinco pacientes encontramos incremento del infarto, cuatro con discordancia SWI/difusión (p = 0,01). Conclusión: La presencia de discordancia SWI/difusión puede ser un biomarcador de penumbra isquémica en pacientes con oclusión vascular proximal.

Abstract Objective: The goal of treatment in acute ischemic stroke is to restore circulation in the area of the ischemic penumbra. Susceptibility weighted imaging (SWI) can detect changes in the caliber of intracranial veins when the deoxyHb/oxyHb ratio is altered in hypoperfused areas, which would allow early detection of ischemic penumbra. Material and methods: Retrospective cohort study. Patients with acute infarcts in the territory of the middle cerebral artery were included. Initial diffusion and SWI sequences and a control study at seven days were evaluated. Stroke extension was measured with the ASPECT scale in diffusion and SWI on admission, and in the control study. An SWI/diffusion discrepancy > 2 points was established as a predictor variable and the final extension of the infarct as a result variable. Results: Thirty-one patients were included, median age 72 years (IQR: 61-81). Proximal vascular occlusion was detected in 13 patients, 8 of whom had SWI/diffusion discordance > 2 points (p < 0.0001). In 5 patients we found increased infarction, 4 with SWI/diffusion mismatch (p = 0.01). Conclusion: The presence of SWI/diffusion mismatch may be a biomarker of ischemic penumbra in patients with proximal vascular occlusion.

Actualización sobre el meningioma: correlación clínico-radiológica y radio-patológica / Update on meningioma: Clinical-radiological and radio-pathological correlation

Los meningiomas son tumores que se originan en las vellosidades aracnoideas y que constituyen la neoplasia no glial más común en el sistema nervioso central. Las manifestaciones clínicas asociadas al meningioma dependen, fundamentalmente, de su localización. La ubicación en la convexidad cerebral es las más frecuente, especialmente en lóbulos frontales, manifestándose con cefalea, alteraciones motoras, convulsiones e, incluso, con trastornos neurocognitivos. Existen 15 subtipos histológicos de meningioma y 3 grados histológicos. Dentro de estos, los grados 2 y 3 tienen un peor pronóstico y una mayor tasa de recurrencia, así como un comportamiento radiológico, por lo general, más agresivo. Aunque existen algunas características de imagen que pueden permitir demostrar un subtipo concreto, el diagnóstico definitivo siempre requerirá la confirmación histológica/molecular.(AU)

Meningiomas are tumors that originate in the arachnoid villi and are the most common non-glial neoplasm in the central nervous system. The clinical manifestations associated with meningioma depend, fundamentally, on its location. The location in the cerebral convexity is the most frequent, especially in the frontal lobes, manifesting with headache, motor disturbances, seizures and even neurocognitive disorders. There are 15 histologic subtypes of meningioma and three histologic grades. Within these, grades two and three have a worse prognosis and a higher rate of recurrence, as well as a radiological behavior that is generally more aggressive. Although there are some imaging features that can suggest a specific subtype, the definitive diagnosis will always require histological/molecular confirmation.(AU)

Update on meningioma: Clinical-radiological and radio-pathological correlation.

Meningiomas are tumors that originate in the arachnoid villi and are the most common non-glial neoplasm in the central nervous system. The clinical manifestations associated with meningioma depend, fundamentally, on its location. The location in the cerebral convexity is the most frequent, especially in the frontal lobes, manifesting with headache, motor disturbances, seizures and even neurocognitive disorders. There are 15 histologic subtypes of meningioma and three histologic grades. Within these, grades two and three have a worse prognosis and a higher rate of recurrence, as well as a radiological behavior that is generally more aggressive. Although there are some imaging features that can suggest a specific subtype, the definitive diagnosis will always require histological/molecular confirmation.

Lung diffusing capacity after different modalities of exercise at sea level and hypobaric simulated altitude of 4.000 m / Capacidad de difusión pulmonar bajo diferentes modalidades de ejercicio a nivel del mar y en hipoxia hipobárica simulada de 4.000 m

Introduction: Lung diffusion capacity of carbon monoxide (DLCO) provides a measure of gas transfer in the lungs, which increase in relation to exercise and decrease in the presence of lung interstitial disease. The aim of this study is to evaluate the changes in lung diffusion after anaerobic and aerobic exercise in a cycle ergometer. Material and method: The participants were 9 healthy active subjects, including six females and three males (age: 24.3 ± 3.1 years). Lung diffusion capacity for carbon monoxide (DLCO) was studied under two different protocols: In the first day, DLCO was measured at SL at rest (SL-R), after 30-s maximal exercise (SL-ANA), and after 15-min moderate continuous exercise (SL-AER). In the second day, DLCO was evaluated at rest at SL, and then at HA (4,000 m) at rest (HA-R) and after 30-min of moderate interval exercise (HA-AER). Results: There was an increase in DLCO from rest to after SL-ANA (32.5 ± 6.4 to 40.3 ± 11.6 mL·min-1·mmHg-1, P = 0.027). In the second day, DLCO was evaluated at rest at SL, and then at HA (4,000 m) at rest (HA-R) and after 30-min of moderate interval exercise (HA-AER). During HA exposure, there was no changes in DLCO, either at HA-R, or after HA-AER. Conclusions: Lung diffusion capacity largely increased after 30-s maximal exercise in a cycle ergometer, although the O2-dependence is small during this type of anaerobic exercise. Thus, exercise intensity may be a key modulator of the changes in lung diffusing capacity in relation to exercise.(AU)

Introducción: La difusión pulmonar para el monóxido de carbono (DLCO) proporciona una medida de la transferencia de gas en los pulmones, que aumenta con relación al ejercicio y disminuye en presencia de una lesión intersticial pulmonar. El objetivo de este estudio es fue evaluar los cambios en la difusión pulmonar después de un ejercicio aeróbico y anaeróbico en cicloergómetro. Material y método: Los participantes fueron 9 sujetos físicamente activos, incluyendo seis mujeres (edad: 24,6 ± 3,6 años) y tres hombres (edad: 23,7 ± 1,5 años). La DLCO se estudió bajo dos protocolos diferentes: El primer día, la DLCO fue medida a nivel del mar en reposo (SL-R), después de un esfuerzo máximo de 30 segundos (SL-ANA), y después de un ejercicio moderado continuo de 15-min (SL-AER). El segundo día, la DLCO fue evaluada a nivel del mar en reposo (SL-R, y luego en altitud (4.000 m) en reposo (HA-R) y después de un ejercicio interválico de 30 minutos (HA-AER). Resultados: Se produjo un aumento de la DLCO de la SL-R a la SL-ANA (32,5 ± 6,4 a 40,3 ± 11,6 mL·min-1·mmHg-1, p = 0,027). En el segundo día, la DLCO no se modificó después de la exposición en altitud, ya sea en reposo a 4.000 m (HA-R) o después del ejercicio interválico moderado a dicha intensidad (HA-AER). Conclusiones: La difusión pulmonar aumentó ampliamente después de un esfuerzo máximo de 30 segundos en cicloergómetro, aunque la dependencia del oxígeno en este tipo de esfuerzos es pequeña. La intensidad del esfuerzo es un modulador determinante en las modificaciones de la difusión pulmonar con relación al ejercicio.(AU)

Impacto de una intervención educativa en el conocimiento de la prevención de la neoplasia del cuello uterino en estudiantes de enfermería y sus familias / Impact of an educational intervention on the knowledge of cervical cancer prevention in nursing students and their families

Resumen El objetivo fue evaluar el impacto de una intervención educativa en el conocimiento de la prevención de la neoplasia del cuello uterino en un grupo de estudiantes de enfermería y sus familias bajo el modelo de Nola Pender. El método fue un estudio cuasi-experimental con muestra no probabilística; se evaluó el conocimiento sobre la prevención y el control de la neoplasia del cuello uterino antes y después de una intervención educativa utilizando la encuesta validada por la Dra. Dina Rubio en 2009 con su previo consentimiento. La información fue tabulada mediante una hoja de cálculo del programa Microsoft Excel; se calcularon frecuencias específicas y frecuencias absolutas, y para el análisis se tomó el modelo de Nola Pender. Los resultados desde el punto de vista estadístico fueron que hay una información instalada en la estructura mental de las participantes sobre lo que es, implica y comporta como riesgo la neoplasia del cuello uterino. La percepción que está en el fondo de sus creencias denota un nivel favorable de conciencia y claridad, lo que posibilita que en las prácticas de autocuidado y la aplicación de la citología se reconozca frecuencia de uso, regularidad en el tiempo y atención a los resultados. En conclusión, al evaluar el impacto de la intervención educativa a través del modelo de Nola Pender se encontraron cambios en los conocimientos y un modelo ideal para utilizarse en grupos poblacionales heterogéneos en edades, niveles educativos, formación profesional y hábitos sexuales, porque integra la experiencia personal, el entorno y las prácticas de salud como tres elementos sin los cuales no es posible practicar el autocuidado y la cultura de intervención.

Abstract A large number of factors influence the level of information that people may have regarding cervical cancer and the way to prevent it, since education is not only provided by health personnel but also by the family. When making important decisions regarding self-care, people must have effective sex education, in which protection is of vital importance, since misinformation is one of the main factors that promotes cervical cancer. The objective of this study was to evaluate the impact of an educational intervention on the knowledge of cervical cancer prevention in a group of nursing students and their families under the Nola Pender model. The method used in the study was a quasi-experimental, non-probabilistic sample; the knowledge about cervical cancer prevention and control was evaluated before and after the intervention, using the survey validated by Dr. Dina Rubio in 2009 (with her consent). The information was included in a Microsoft Excel spreadsheet: the items were placed in columns and the subjects were included in the rows. Specific frequencies and absolute frequencies were calculated, the Nola Pender model was used for the analysis. The units of analysis were selected manually or randomly and these selections do not depend on probability but are generated based on the criteria of the researcher or the specific needs of the research. From a statistical point of view, information about what cervical cancer is, what it implies and how it behaves as a risk is engrained in the mental structure of the participants. To these implications of a technical and methodological nature, others of a structural and conceptual nature are added to build an integrative analysis of the results obtained in the field work. In this case, they include opinions, appraisals, judgments, and evaluations about cervical cancer. This research was organized in the following stages: (1) Evaluation of prior knowledge on cervical cancer prevention and control. The starting point of the investigation was the recognition that the participating women had a basic conceptual scaffolding, acquired through their own experience and self-training or by going to sources such as academia, social networks, specialized magazines, health institutions, medical staff and other specialists who help in the creation of an important background to consolidate an individual perspective. (2) Application of an educational intervention. In this stage, designed workshops were implemented and evaluated by the students with the advice of a teacher, and included the following topics: general concepts, signs and symptoms, associated risk factors, screening techniques, benefits, and exam precautions. The students contributed a theoretical, methodological and evaluative foundation to the design of each workshop, considering the expected training objectives, the characteristics included in its development, and a diversity of pedagogical actions that guarantee the efficiency of the transmitted message. (3) Reevaluation of the knowledge acquired. By applying a post-test, the knowledge acquired during the implementation of the workshops was recovered and resized. In this stage, the variability of the responses measured the transforming effect of the training, either by improving the knowledge acquired or by introducing new knowledge into the participant's cognitive model. The perception that participants have about self-care practices is linked to their beliefs, denoting a favorable level of awareness and clarity, which makes it possible for the application of cytology to recognize the frequency of use, regularity over time, and attention to the results. In conclusion, when evaluating the impact of educational intervention through the Nola Pender model, changes in knowledge were found. Results also indicate that this is an ideal model for employees in heterogeneous popu lation groups in ages, educational levels, professional training, and sexual habits, because it integrates personal experience, the environment and health practices as three elements without which it is not possible to practice self-care and the culture of intervention.

Técnicas de Neuroimagenología en la Cuantificación de la Neuroplasticidad en Pacientes con Enfermedad Vascular Cerebral / Neuroimaging Techniques for Neuroplasticity Quantification in Stroke Patients

RESUMEN Las técnicas de neuroimagenología otorgan información relevante del estado funcional y anatómico del cerebro humano. Esta información es particularmente importante cuando existe una lesión cerebral causada por alguna patología, tal como la enfermedad vascular cerebral (EVC). En pacientes afectados por esta enfermedad, se ha determinado que la neuroplasticidad es el mecanismo principal de recuperación de la función motora perdida. Debido a la alta prevalencia de la EVC a nivel mundial y especialmente en países en vías de desarrollo, es necesario continuar investigando los mecanismos de recuperación involucrados en esta patología. La resonancia magnética funcional (RMF) y la imagenología por tensor de difusión (ITD) son dos de las técnicas de neuroimagenología más utilizadas con este fin. La RMF permite analizar la actividad neuronal generada al ejecutar tareas de movimiento, mientras que la ITD proporciona información estructural de la anatomía cerebral. En esta revisión narrativa, se presentan diversos estudios que han utilizado estas técnicas de neuroimagenología en la cuantificación de los cambios de neuroplasticidad en pacientes con EVC tras participar en algún programa de neurorrehabilitación. Comprender mejor estos cambios de neuroplasticidad permitiría diseñar esquemas de rehabilitación que proporcionen un mayor beneficio a los pacientes con EVC.

ABSTRACT Neuroimaging techniques provide relevant information of the functional and anatomical status of the human brain. This information is of particular importance when a pathology, like stroke, produces a brain injury. In stroke patients, it has been determined that neuroplasticity is the primary recovery mechanism of the lost motor function. Due to worldwide high prevalence, especially in developing countries, it is necessary to continue the research of the recovery mechanisms involved in this pathology. To this end, functional magnetic resonance imaging (fMRI) and diffusion tensor imaging (DTI) are two of the most used neuroimaging techniques. In stroke patients, fMRI allows the analysis of the neural activity produced by the execution of motor tasks, whereas DTI provides structural information of the brain anatomy. In this narrative review, multiple studies that employ these neuroimaging techniques for quantification of neuroplasticity changes in stroke patients after undergoing a neurorehabilitation program are presented. Better understanding of these neuroplasticity changes would allow researchers to design and provide more beneficial rehabilitation schemes to stroke patients.

Is structural connectivity different in child and adolescent relatives of patients with bipolar disorder? A narrative review according to studies with DTI.

INTRODUCTION: Bipolar disorder (BD) has been associated with a decrease in white matter integrity. Diffusion tensor imaging (DTI) studies have enabled these changes to be elucidated with higher quality. Due to BD's high heritability, some studies have been conducted in relatives of BD patients looking at white matter integrity, and have found that structural connectivity may also be affected. This alteration has been proposed as a potential BD biomarker of vulnerability. However, there are few studies in children and adolescents. OBJECTIVE: To conduct a review of the literature on changes in white matter integrity determined by DTI in high-risk children and adolescents. RESULTS: Brain structural connectivity in the paediatric population is described in studies using DTI. Changes in the myelination process from its evolution within normal neurodevelopment to the findings in fractional anisotropy (FA) in BD patients and their high-risk relatives are also described. CONCLUSIONS: Studies show that both BD patients and their at-risk relatives present a decrease in FA in specific brain regions. Studies in children and adolescents with a high risk of BD, indicate a reduced FA in axonal tracts involved in emotional and cognitive functions. Decreased FA can be considered as a vulnerability biomarker for BD.

Imaging of low-energy vertebral fractures.

Low-energy vertebral fractures pose a diagnostic challenge for the radiologist due to their often-inadvertent nature and often subtle imaging semiology. However, the diagnosis of this type of fractures can be decisive, not only because it allows targeted treatment to prevent complications, but also because of the possibility of diagnosing systemic pathologies such as osteoporosis or metastatic disease. Pharmacological treatment in the first case has been shown to prevent the development of other fractures and complications, while percutaneous treatments and various oncological therapies can be an alternative in the second case. Therefore, it is necessary to know the epidemiology and typical imaging findings of this type of fractures. The objective of this work is to review the imaging diagnosis of low-energy fractures, with special emphasis on the characteristics that should be outlined in the radiological report to guide a specific diagnosis that favours and optimizes the treatment of patients suffering of low energy fractures.

¿Es diferente la conectividad estructural en niños y adolescentes familiares de pacientes con trastorno bipolar? Una revisión narrativa según estudios con DTI

Introducción: El trastorno afectivo bipolar (TAB) se ha asociado con una disminución de la integridad de la sustancia blanca. Los estudios con imágenes con tensor de difusión (DTI) han permitido elucidar con una mayor calidad estos cambios. Debido a la gran heredabilidad del TAB, se han realizado estudios en familiares de pacientes con TAB acerca de la integridad de la sustancia blanca, y se ha encontrado que la conectividad estructural también puede estar afectada. Dicha alteración se ha propuesto como un potencial biomarcador de vulnerabilidad a este trastorno. Sin embargo, los estudios en niños y adolescentes son pocos. Objetivo: Revisar la literatura sobre los cambios en la integridad de la sustancia blanca determinados mediante DTI en niños y adolescentes con alto riesgo. Resultados: Se describe la conectividad estructural cerebral en la población pediátrica en estudios que utilizaron DTI. Se describen los cambios en el proceso de mielinización desde su evolución dentro del neurodesarrollo normal hasta los hallazgos en la anisotropía fraccional (AF) en pacientes con TAB y los familiares en alto riesgo. Conclusiones: Los estudios demuestran que tanto pacientes con TAB como sus familiares en riesgo presentan disminución de la AF en regiones cerebrales específicas. Los estudios en niños y adolescentes con riesgo familiar de TAB señalan una AF reducida en tractos axonales implicados en funciones emocionales y cognitivas. La disminución de la AF puede considerarse como un biomarcador de vulnerabilidad al TAB.

Introduction: Bipolar disorder (BD) has been associated with a decrease in white matter integrity. Diffusion tensor imaging (DTI) studies have enabled these changes to be elucidated with higher quality. Due to BD's high heritability, some studies have been conducted in relatives of BD patients looking at white matter integrity, and have found that structural connectivity may also be affected. This alteration has been proposed as a potential BD biomarker of vulnerability. However, there are few studies in children and adolescents. Objective: To conduct a review of the literature on changes in white matter integrity determined by DTI in high-risk children and adolescents. Results: Brain structural connectivity in the paediatric population is described in studies using DTI. Changes in the myelination process from its evolution within normal neurodevelopment to the findings in fractional anisotropy (FA) in BD patients and their high-risk relatives are also described. Conclusions: Studies show that both BD patients and their at-risk relatives present a decrease in FA in specific brain regions. Studies in children and adolescents with a high risk of BD, indicate a reduced FA in axonal tracts involved in emotional and cognitive functions. Decreased FA can be considered as a vulnerability biomarker for BD.

Fuentes utilizadas para obtener información sobre la COVID-19 y su impacto en la salud mental / ources used to obtain information on COVID-19 and its impact on mental health

Con la aparición de la COVID-19, la sociedad ha tenido la necesidad de buscar información sobre la pandemia y las fuentes de informa-ción usadas para ello han sido muy diversas, con un mayor predominio de las redes sociales, los medios tradicionales y la consulta alas personas allegadas. Además, se ha observado un exceso de información en los medios de comunicación que dificultaba el accesoy el entendimiento, así como una constante preocupación y ansiedad por la salud, lo cual provocaba una necesidad de búsquedade información excesiva o repetida sobre la salud y la enfermedad. Esta información no siempre estaba avalada por la comunidadcientífica y durante la pandemia se han sucedido la difusión de información errónea, de las llamadasfake news y de las teorías deconspiración sobre la COVID-19 difundidas, principalmente, a través de las redes sociales. En este sentido, tanto los conocimientoscomo las creencias aprehendidas han podido impactar en la salud mental de la población.(AU)

With the rise of COVID-19, the society has had the need to search for information about the pandemic and the sources used to obtaininformation have been very diverse, with a greater predominance of social media, traditional media and consultation with lovedones. In addition, an excess of information has been observed in the media that made access and understanding difficult, as well asa constant concern and anxiety about health that caused a need to search excessively or repeatedly for information on health anddisease. This information was not always endorsed by the scientific community and during the pandemic there has been the spreadof misinformation, fake news and conspiracy theories about COVID-19 disseminated, mainly through social media. In this sense, boththe knowledge and the beliefs apprehended have been able to impact the mental health of the population.(AU)

Diagnóstico por imagen de las fracturas vertebrales de baja energía / Imaging of low-energy vertebral fractures

Las fracturas vertebrales de baja energía suponen un reto diagnóstico para el radiólogo debido a su naturaleza, frecuentemente inadvertida, y a su semiología en imagen, a menudo sutil. Sin embargo, el diagnóstico de este tipo de fracturas puede resultar determinante, no solo por permitir realizar un tratamiento dirigido que evite complicaciones, sino también por la posibilidad de diagnosticar patologías sistémicas como la osteoporosis o la enfermedad metastásica. El tratamiento farmacológico en el primer caso ha demostrado evitar el desarrollo de otras fracturas y complicaciones, mientras que los tratamientos percutáneos y las diversas terapias oncológicas pueden ser una alternativa en el segundo caso. Por lo tanto, es preciso conocer la epidemiología y los hallazgos por imagen de este tipo de fracturas. El objetivo de este trabajo es revisar el diagnóstico por imagen de las fracturas de baja energía, con especial énfasis en las características que deben reseñarse en el informe radiológico para orientar a un diagnóstico específico que favorezca y optimice el tratamiento de los pacientes que padecen este tipo de fracturas.(AU)

Low-energy vertebral fractures pose a diagnostic challenge for the radiologist due to their often-inadvertent nature and often subtle imaging semiology. However, the diagnosis of this type of fractures can be decisive, not only because it allows targeted treatment to prevent complications, but also because of the possibility of diagnosing systemic pathologies such as osteoporosis or metastatic disease. Pharmacological treatment in the first case has been shown to prevent the development of other fractures and complications, while percutaneous treatments and various oncological therapies can be an alternative in the second case. Therefore, it is necessary to know the epidemiology and typical imaging findings of this type of fractures. The objective of this work is to review the imaging diagnosis of low-energy fractures, with special emphasis on the characteristics that should be outlined in the radiological report to guide a specific diagnosis that favours and optimizes the treatment of patients suffering of low energy fractures.(AU)