Metastatic Hepatoblastoma in Adolescence: A Clinical Case Report and Literature Review.

Hepatoblastoma is the most common hepatic neoplasm in children. However, its incidence is infrequent beyond age five. We present the case of a 15-year-old female diagnosed with metastatic hepatoblastoma during hospitalization for liver function deterioration. The patient presented with abdominal distension, jaundice, and other symptoms indicative of advanced disease. Imaging and biopsy confirmed stage IV epithelial hepatoblastoma with pulmonary metastases. This case underscores the importance of considering hepatoblastoma in older pediatric patients or young adults presenting with hepatic masses despite lacking traditional risk factors for liver malignancies.

Rituximab as a First-line Treatment for Autoimmune Hemolytic Anemia in Multicentric Castleman's Disease.

Castleman´s disease (CD) is a rare lymphoproliferative disorder. Concurrent autoimmune disease and CD are uncommon, but even more so, comorbid CD and autoimmune hemolytic anemia (AIHA). To the best of our knowledge, this case represents the first successful AIHA and multicentric CD (MCD) treatment using rituximab as first-line treatment. We present the case of a 53-year-old woman with a 10-year history of plasma cell variant CD who arrived at the emergency department with signs and symptoms of anemia. On admission, we made a preliminary diagnosis of hemolytic anemia and initiated immunosuppressive therapy with rituximab and steroids. After seven days, the patient recovered according to clinical and laboratory parameters, and we discharged her early. We portray a rare occurrence of CD and AIHA successfully treated with rituximab and steroid therapy, which makes our case unique.

Vitamin A Status Modulates Epithelial Mesenchymal Transition in the Lung: The Role of Furin.

Vitamin A deficiency (VAD) induced TGF-ß hyperactivation and reduced expression of cell adhesion proteins in the lung, suggesting that the disruption of retinoic acid (RA) signaling leads to epithelial-mesenchymal transition (EMT). To elucidate the role of lung vitamin A status in EMT, several EMT markers and the expression of the proprotein convertase furin, which activates TGF-ß, were analyzed in two experimental models. Our in vivo model included control rats, VAD rats, and both control rats and VAD rats, treated with RA. For the in vitro studies, human bronchoalveolar epithelial cells treated with RA were used. Our data show that EMT and furin are induced in VAD rats. Furthermore, furin expression continues to increase much more markedly after treatment of VAD rats with RA. In control rats and cell lines, an acute RA treatment induced a significant increase in furin expression, concomitant with changes in EMT markers. A ChIP assay demonstrated that RA directly regulates furin transcription. These results emphasize the importance of maintaining vitamin A levels within the physiological range since both levels below and above this range can cause adverse effects that, paradoxically, could be similar. The role of furin in EMT is discussed.

Efecto de la "ley de residentes" sobre el bienestar laboral en cirugía: resultados de un estudio nacional de métodos mixtos en Colombia / Effect of the "residents' law" on occupational well-being in surgery: Results of a national mixed methods study in Colombia

Introducción. El efecto de las políticas para el mejoramiento del bienestar de los residentes, en términos de desgaste profesional y compromiso laboral, es controversial y su resultado tras la implementación de la "ley de residentes" (1917/2018) en Colombia es desconocido. Este estudio explora el efecto de esta ley en médicos residentes de cirugía colombianos. Métodos. Estudio de métodos mixtos secuencial explicativo. Inicialmente, se invitó a todos los residentes de cirugía del país a autodiligenciar los cuestionarios UWES-17 y MBI-HSS para evaluar el compromiso laboral (vigor, dedicación y absorción) y desgaste profesional (agotamiento emocional, despersonalización y baja realización personal) antes (2019) y después (2022) de la implementación de la ley. Se probaron diferentes hipótesis mediante modelos de ecuaciones estructurales. Los resultados fueron explorados con cirujanos mediante grupos focales. La información cualitativa fue analizada manualmente y por inteligencia artificial, y reportada en temas principales. Resultados. Participaron en el estudio 400 residentes. La tasa de desgaste profesional fue de 24,8 % antes y 15,8 % después (p=0,032). El análisis de ecuaciones estructurales confirmó que el agotamiento emocional sobre el desgaste profesional fue menor en 2022 (p=0,022). No se identificaron cambios significativos en el compromiso laboral. La principal explicación fue atribuida a los beneficios económicos de la ley. Conclusión. La tasa de desgaste profesional en médicos residentes de cirugía colombianos se redujo significativamente tras la implementación de la "ley de residentes". Estos hallazgos tienen implicaciones para la practica y el mejoramiento de la calidad de la educación.

Introduction. The effect of policies to improve residents' well-being, in terms of professional burnout and work commitment is controversial, and its result after the implementation of the "residents' law" (1917/2018) in Colombia is unknown. This study explores the effect of this law on Colombian surgical residents. Methods. Explanatory sequential mixed methods study. Initially, all surgical residents in the country were invited to self-complete the UWES-17 and MBI-HSS questionnaires to evaluate work commitment (vigor, dedication, and absorption) and professional burnout (emotional exhaustion, depersonalization, and low personal accomplishment) before (2019) and after (2022) the implementation of the law. Different hypotheses were tested using structural equation models. The results were explored with surgeons through focus groups. Qualitative information was analyzed manually and by artificial intelligence, and reported into main themes. Results. 400 residents participated in the study. Burnout rates were 24.8% before and 15.8% after (p=0.032). The structural equations analysis confirmed that emotional exhaustion over professional burnout was lower in 2022 (p=0.022). No significant changes in work commitment were identified. The main explanation was attributed to the economic benefits of the law. Conclusion. The burnout rate in Colombian surgical residents was significantly reduced after the implementation of the "residents' law". These findings have implications for practice and improving the quality of education

Floquet Engineering of a Diatomic Molecule through a Bichromatic Radiation Field.

We report on a theoretical study of a Cs2 molecule illuminated by two lasers and show how this can result in novel quantum dynamics. We reveal that these interactions facilitate the bypass of the non-crossing rule, forming light-induced conical intersections and modifiable avoided crossings. Our findings show how laser field orientation and strength, along with initial phase differences, can control molecular-state transitions, especially on the micromotion scale. We also extensively discuss how the interaction of radiation with matter gives rise to the emergence of potential energy surfaces of hybrids of radiation and molecular states. This research advances a technique for manipulating photoassociation processes in Cs2 molecules, offering potential new avenues in quantum control.

Efecto de la deuda económica sobre el bienestar psicológico de los residentes de cirugía: Resultados de un estudio nacional en Colombia / Effect of financial debt on the psychological well-being of surgery residents: Results of a national study in Colombia

Introducción. La deuda económica durante la residencia en cirugía general puede afectar el desempeño profesional, las decisiones de vida y el bienestar psicológico. La información disponible en Colombia es limitada. El objetivo de este estudio fue cuantificar la deuda económica del residente de cirugía general, identificar los factores asociados y evaluar su efecto en el bienestar psicológico. Métodos. Estudio de corte transversal analítico. Se invitó a 380 residentes a diligenciar una encuesta sobre los aspectos relacionados con su deuda económica y se utilizó el WHO-index para evaluar su bienestar psicológico. Resultados. Un total de 259 residentes participaron en el estudio (67,6 %). El 56 % posee una deuda económica promedio de COP $88.000.000 ((US$21.826)). Un alto nivel de endeudamiento se relacionó con el año de residencia, el tipo de institución (privada) y la solicitud de préstamos. Se identificó algún trastorno mental en 14,7 % y un bajo nivel de bienestar psicológico en 56,4 % de los participantes. No se identificó ninguna asociación entre una elevada deuda económica y el bajo bienestar psicológico. Conclusiones. La deuda económica tiene un efecto sobre los residentes. El endeudamiento de los residentes de cirugía en Colombia es altamente prevalente, y no se correlaciona con un pobre bienestar psicológico. La autodeterminación favorece el bienestar psicológico en el posgrado en cirugía general. Existe la necesidad de educación financiera en los residentes. Se requieren nuevos estudios que evalúen las causas del pobre bienestar psicológico.

Introduction. Financial debt during surgery residency can affect professional performance, life decisions, and psychological well-being. The information available in Colombia is limited. The objective of this study is to quantify the financial debt of the general surgery resident, identify the associated factors and evaluate their effect on psychological well-being. Methods. A cross-sectional study was carried out. A total of 380 residents were invited to complete a survey on aspects related to their financial debt, and the WHO-index to evaluate their psychological well-being. Results. A total of 259 residents participated in the study (67.6%). 56% have an average economic debt of $88,000,000 COP (US$21,826). High debt was related to level of residence, type of institution (private), and loan application. Some mental disorder was identified in 14.7% and a low level of psychological well-being in 56.4% of the participants. No association was identified between high financial debt and low psychological well-being. Conclusions. Economic debt has an effect on residents. Financial debt among surgical residents in Colombia is highly prevalent; however, it does not correlate with poor psychological well-being. Self-determination favors psychological well-being in the postgraduate course in general surgery. Likewise, the need for financial education in residents is imminent. New studies are required that thoroughly evaluate the causes of poor well-being.

Population-Based Cancer Prevention Education Intervention Through mHealth: A Randomized Controlled Trial.

Despite the high potential of mHealth-related educational interventions to reach large segments of the population, implementation and adoption of such interventions may be challenging. The objective of this study was to gather knowledge on the feasibility of a future cancer prevention education intervention based on the European Code Against Cancer (ECAC), using a population-based mHealth implementation strategy. A type-2 hybrid effectiveness-implementation study was conducted in a sample of the Spanish general population to assess adoption, fidelity, appropriateness, and acceptability of an intervention to disseminate cancer prevention messages, and willingness to consult further digital information. Participation rates, sociodemographic data, mHealth use patterns and implementation outcomes were calculated. Receiving cancer prevention messages through mHealth is acceptable, appropriate (frequency, timing, understandability and perceived usefulness) and feasible. mHealth users reported high access to the Internet through different devices, high ability and confidence to browse a website, and high willingness to receive cancer prevention messages in the phone, despite low participation rates in comparison to the initial positive response rates. Although adoption of the intervention was high, post-intervention fidelity was seriously hampered by the disruptions caused by the Covid-19 pandemic, which may have affected recall bias. In the context of the Europe's Beating Cancer Plan to increase knowledge about cancer prevention across the European Union, this study contributes to inform the design of future interventions using mHealth at large scale, to ensure a broad coverage and adoption of cancer prevention messages as those promoted by the ECAC.Trial Registration: ClinicalTrials.gov from the U.S. National Library of Medicine, NCT05992792. Registered 15 August 2023 - Retrospectively registered https://clinicaltrials.gov/study/NCT05992792?cond=Cancer&term=NCT05992792&rank=1 .

Efficacy of an aloe vera, chamomile, and thyme cosmetic cream for the prophylaxis and treatment of mild dermatitis induced by radiation therapy in breast cancer patients: a controlled clinical trial (Alantel Trials).

BACKGROUND: Dermatitis is a skin condition caused by multiple causes, including radiotherapy treatment. Pharmacological treatments can become chronic and are not exempt from side effects. The latest recommendations of the American Academy of Dermatology establish the use of natural, nourishing, and moisturizing cosmetic products as prevention and the first therapeutic step for dermatitis. Alantel® is a cream developed to reduce redness and irritation, promote the local immune system, combat immunosenescence, and promote the healing of epidermal lesions. The objective was to evaluate the effect of a cream (Alantel) based on natural products at high concentrations for the preventive and curative treatment (at early stages) of radiation-induced dermatitis in patients with breast cancer. METHODS: Our protocol is an experimental, prospective, triple-blind, multicenter, controlled clinical trial with two parallel arms. The experimental group will be treated with Alantel, while the control group will receive another moisturizing cream. Radiotherapy oncology professionals will recruit a total of 88 patients (44 per comparison group) with breast cancer who will receive radiotherapy oncology treatment for 15 days, and they will be randomly allocated to the experimental or control group. Selected patients will be followed up for four visits by primary care physicians for up to 1 week after completion of radiotherapy. The main study variable will be the incidence rate of mild post-radiation dermatitis. An intention-to-treat analysis will be performed, applying a comparison test for independent means and proportions. A bivariate and multivariate analysis will also be developed to check the treatment effect, adjusting for predictive sociodemographic and clinical variables. DISCUSSION: By carrying out this clinical trial, it is expected to verify that Alantel cream, based on natural products at high concentrations, has advantages over a moisturizing cream for the preventive and curative treatment of RD in patients with breast cancer. The COVID-19 pandemic has been influenced by delaying the start of the study. One of the main limitations of this study will be the time required to recruit the patients from the planned sample, given that the selection criteria are restrictive and, although the study is multicenter, recruitment will be coordinated through a single service on radiotherapy oncology. TRIAL REGISTRATION: ClinicalTrials.gov NCT04116151 . Registered on 4 October 2019.

Reflexiones para optimizar el triaje en cirugía / Reflections to optimize triage in surgery

Introducción: La categorización de las urgencias quirúrgicas es una necesidad en razón al continuo desequilibrio entre la oferta y la demanda de servicios quirúrgicos en la mayoría de las instituciones donde se encuentra habilitada la prestación del servicio. Hay abordajes en el tema, con estrategias de priorización de los casos quirúrgicos, que consideran escalas y flujogramas, pero su ausente validez externa y las particularidades de las instituciones y aseguradores, han limitado una generalización de los resultados. Métodos: Se efectúa una conceptualización del triaje de las urgencias quirúrgicas con planteamientos críticos y reflexivos soportados en la evidencia. Se identifican, asimismo, las posibles oportunidades para la investigación. Discusión: Los beneficios potenciales de un triaje quirúrgico en situaciones de urgencia, son extensivos a todos los actores del sistema de salud, disminuyen la posibilidad de desenlaces y repercusiones económicas negativas para las instituciones y los aseguradores. La teoría de las colas ofrece el soporte para un entendimiento del tema y contribuye en las soluciones. Su adopción es escasa como parte de una estrategia local de priorización quirúrgica en un contexto de urgencia. Conclusión:La creación de estrategias que establezcan el triaje para el paciente con una urgencia quirúrgica están influenciadas por la participación continua y efectiva de los actores involucrados en el proceso y en su impacto en los desenlaces clínicos

Introduction: Categorizing surgical emergencies is necessary due to the continued imbalance between the supply and demand of surgical services in most institutions where the service is enabled. There are approaches to the subject, with strategies for prioritizing surgical cases, which consider scales and flowcharts, but their lack of external validity and the particularities of the institutions and insurers have limited the generalization of the results. Methods: A conceptualization of the triage of surgical emergencies is carried out with critical and reflective approaches supported by evidence. Potential research opportunities are also identified. Discussion: The potential benefits of surgical triage in emergent situations are extensive to all health system actors, reducing the possibility of adverse outcomes and economic repercussions for institutions and insurers. Queuing theory offers support for understanding the issue and contributes to solutions. However, its adoption is scarce in an emergency as part of a local surgical prioritization strategy. Conclusion: The creation of strategies that establish triage for the patient with a surgical emergency is influenced by the continuous and effective participation of the actors involved in the process and its impact on clinical outcomes

Alcance para Colombia de la declaración de la World Society of Emergency Surgery 2022 sobre el entrenamiento en cirugía digestiva mínimamente invasiva de emergencia / Scope for Colombia of the World Society of Emergency Surgery 2022 declaration on training in emergency minimally invasive digestive surgery

Introducción. El currículo para la formación del cirujano general exige precisión, ajuste al contexto y factibilidad. En 2022, la World Society of Emergency Surgery formuló cinco declaraciones sobre el entrenamiento en cirugía digestiva mínimamente invasiva de emergencia que puede contribuir a estos propósitos. El objetivo del presente artículo fue examinar el alcance de estas declaraciones para la educación quirúrgica en Colombia. Métodos. Se analizó desde una posición crítica y reflexiva el alcance y limitaciones para Colombia de cada una de las declaraciones de la World Society of Emergency Surgery, con base en la evidencia empírica publicada durante las últimas dos décadas en revistas indexadas nacionales e internacionales. Resultados. La evidencia empírica producida en Colombia durante el presente siglo permite identificar que el país cuenta con fundamentos del currículo nacional en cirugía general, formulado por la División de Educación de la Asociación Colombiana de Cirugía en 2021; un sistema de acreditación de la educación superior; un modelo de aseguramiento universal en salud; infraestructura tecnológica y condiciones institucionales que pueden facilitar la adopción exitosa de dichas declaraciones para el entrenamiento de los futuros cirujanos en cirugía digestiva mínimamente invasiva de emergencia. No obstante, su implementación requiere esfuerzos mayores e inversión en materia de simulación quirúrgica, cooperación institucional y fortalecimiento del sistema de recertificación profesional. Conclusión. La educación quirúrgica colombiana está en capacidad de cumplir con las declaraciones de la World Society of Emergency Surgery en materia de entrenamiento en cirugía digestiva mínimamente invasiva de emergencia.

Introduction. The general surgeon training curriculum requires precision, contextual fit, and feasibility. In 2022, the World Society of Emergency Surgery formulated five statements on training in emergency minimally invasive digestive surgery, which can contribute to these purposes. This article examines the scope of these declarations for surgical education in Colombia. Methods. The scope and limitations for Colombia of each of the statements of the World Society of Emergency Surgery were analysed from a critical and reflective position, based on empirical evidence published during the last two decades in national and international indexed journals. Results. The empirical evidence produced in Colombia during this century allows us to identify that the country has the foundations of the national curriculum in general surgery, formulated by the Education Division of the Colombian Association of Surgery in 2021; a higher education accreditation system; a universal health insurance model; technological infrastructure, and institutional conditions that can facilitate the successful adoption of said statements for the training of future surgeons in emergency minimally invasive digestive surgery. However, its implementation requires greater efforts and investment in surgical simulation, institutional cooperation, and strengthening of the professional recertification system. Conclusion. Colombian surgical education is able to comply with the declarations of the World Society of Emergency Surgery regarding training in emergency minimally invasive digestive surgery.

Cerebrovascular Complications Associated With Iatrogenic Fungal Meningitis Following Surgical Procedures in Mexico.

BACKGROUND: The current fungal meningitis outbreak caused by contaminated epidural anesthesia with Fusarium solani among patients who underwent surgical procedures in Matamoros, Mexico remains a cause of concern. Its association with an increased susceptibility for cerebrovascular complications (CVC) has not been reported. This single-center study describes 3 patients with a unique pattern of CVC attributed to fungal meningitis. METHODS: A retrospective case series of patients diagnosed with fungal meningitis following surgical procedures under contaminated epidural anesthesia who developed a unique pattern of CVC during their hospitalization. RESULTS: Three female patients (mean age, 35 years) with CVC due to iatrogenic fungal meningitis were included. Positive Fungitell ß-D-glucan assay in cerebrospinal fluid was documented in all cases, and F. solani was confirmed by polymerase chain reaction in case 3. All cases were complicated by severe vertebrobasilar circulation vasculopathy and arterial dissections with resultant subarachnoid hemorrhage and intraventricular hemorrhage, ultimately leading to patients' death. CONCLUSIONS: The death toll from the ongoing fungal meningitis outbreak keeps rising, underscoring the need for early recognition and aggressive treatment. We highlight the risk for vertebrobasilar circulation CVC among these patients. The angioinvasive nature of F. solani is yet to be clarified; however, a clear pattern has been observed. Public health awareness should be raised and a strong response should be pursued.

Síndrome de dificultad respiratoria aguda por Mycobacterium tuberculosis de rápido crecimiento en una mujer con virus linfotrópico T humano tipo I-II / Acute respiratory distress syndrome due to rapidly growing Mycobacterium tuberculosis in a woman with human T-lymphotropic virus type I-II

La tuberculosis es una infección de distribución mundial con una alta morbimortalidad en países subdesarrollados. Presentamos el caso de una mujer de 55 años con cuadro de dos meses de adenomegalias cervicales, pérdida de peso y fiebre con posterior disnea de esfuerzo progresiva. Ingresó por urgencias en falla ventilatoria y hallazgos radiológicos compatibles con síndrome de dificultad respiratoria aguda (SDRA) requiriendo ventilación mecánica invasiva. Se demostró infección por M. tuberculosis por PCR en tiempo real GeneXpert MTB/RIF Ultra y en cultivo de medio líquido de esputo, con crecimiento en tiempo menor a tres días. La biopsia de las adenomegalias confirmó linfoma de células T periférico asociado a infección por virus linfotrópico T humano tipo I-II, presentando una evolución tórpida a pesar del esquema quimioterapéutico.

Tuberculosis is a globally distributed infection with high morbidity and mortality in underdeveloped countries. We present the case of a 55-year-old woman with a 2-month history of cervical lymph nodes, weight loss, and fever with subsequent progressive exertional dyspnea. She was admitted to the emergency department with ventilatory failure and radiological findings compatible with acute respiratory distress syndrome (ARDS) requiring invasive mechanical ventilation. M. tuberculosis infection was proved by a real-time PCR GeneXpert MTB/RIF Ultra and in culture of sputum liquid medium, with growth in less than 3 days. The biopsy of the lymph nodes revealed peripheral T-cell lymphoma associated with infection by human T-lymphotropic virus type I-II, presenting a torpid evolution despite the chemotherapy regimen.

An Unexpected Cause of Abdominal Discomfort: Non-pancreatic Mesenteric Pseudocyst.

Mesenteric cysts (MCs), rare entities of embryologic origin, predominantly affect the small bowel's mesentery. The clinical manifestations of MCs often lack specificity, which complicates diagnosis. Given their rarity, detailed reporting of MC cases is essential to enhance understanding and improve treatment strategies. We present a case of a 45-year-old male who presented to the emergency department with a one-month history of abdominal pain in the umbilical region, postprandial fullness, progressive decrease in food intake, 12 kg weight loss, and increased abdominal girth. Computed tomography (CT) imaging revealed a well-defined mass in the jejunoileal area. During the exploratory laparotomy, we identified and excised a fibrotic mass on the mesentery of the ileal jejunum, which was not adherent to the intestines. We discharged the patient with no complications following an uneventful four-day observational period. Histopathological examination, including immunohistochemical staining, confirmed the lesion as a non-pancreatic mesenteric pseudocyst. On the follow-up visit, the patient reported no complications. This case report underscores the solitary, multilocular nature of the jejunoileal MC, distinct for its serosanguineous fluid content. In conclusion, this case highlights the diagnostic challenge of MCs and illustrates the potential for successful management with a timely and multidisciplinary approach.

Correlations between Mental Health, Physical Activity, and Body Composition in American College Students after the COVID-19 Pandemic Lockdown.

Restrictions associated with the COVID-19 pandemic had forced American college students to significantly reduce their daily energy expenditure and increase their sedentary behaviors, thus presumably increasing mental health symptoms, decreasing physical activity levels, and enhancing the promotion of unhealthy eating habits. This study aimed to explore the correlations between mental health symptoms, physical activity levels, and body composition in college students in the years following the pandemic, focusing on the lingering effects of lockdown measures. American college students completed pre-existing, well-validated surveys for both mental health (Hospital Anxiety and Depression Scale) and physical activity (International Physical Activity Questionnaire-Long Form). Body composition was assessed in person with the use of an Inbody 570 device. Of the 90 American college students (M age = 22.52 ± 4.54, 50 females) who participated in this study, depressive and anxious symptom scores consistent with heightened symptomatology were reported by 58% of the participants (N = 52), moderate borderline symptomatology by 17% (N = 15), and asymptomatology by 25% (N = 23). In regard to physical activity, 79% (N = 71) of the students were highly physically active, 18% (N = 16) were moderately active, and 3% (N = 3) reported low levels of physical activity. Additionally, 46% (N = 41) of the students maintained an unhealthy body fat percentage based on the World Health Organization recommendations. Strong, significant relationships were found between anxiety and depression symptomatology and body fat percentage (positive correlation, p = 0.003) and between anxiety and depression symptomatology and skeletal muscle mass (negative correlation, p = 0.015), with said symptomatology increasing with added body fat and decreasing with added skeletal muscle mass. The COVID-19 pandemic lockdown restrictions affected American college students through an increase in mental health symptomatology and a deterioration in overall body composition.

Antifungal Activity of Rue Essential Oil and Commercial Chitosan on Native Corn Foliar Diseases.

Native corn in Cherán, Michoacán, southwestern Mexico, represents a high-impact economic, social, and religious support, although its yield is low due to fungal diseases. Fungicides are mainly used for their control, but the fungi involved create resistance. The aims of this study are to determine the incidence of foliar diseases in the field, isolate the causal fungi, evaluate the in vitro effect of the essential oil of rue (Ruta graveolens) on them, and identify the secondary metabolites. The essential oil was obtained using the steam distillation technique on fresh plants. Also used was an industrial-grade chitosan, and the commercial fungicide benomyl was used as a positive control. Rue essential oil was characterized by mass spectrometry with ultra-high-performance liquid chromatography with electrospray ionization (UHPLC-ESI). The highest incidence of disease was obtained for leaf rust (35%), followed by gray leaf spot (GLS) (24%) and leaf blight (19%). Rue essential oil inhibited 100% of the mycelial growth of Coniothyrium phyllachorae and 96% of the mycelium of Exseroilum turcicum. The benomyl fungicide effectively inhibited C. phyllachorae (86 to 91%), but not E. turcicum, with the opposite effect when using chitosan by inhibiting 89 to 90% of the latter's mycelial development. The majority compound of the essential oil of R. graveolens was 2-(3-phenylprop-2-enoyl)chromen-4-one; however, fatty acids were also detected: linoleic, palmitic, and retinoic acid.

Effect of Conservative Rehabilitation Interventions on Health-Related Quality of Life in Women with Upper Limb Lymphedema Secondary to Breast Cancer: A Systematic Review.

Breast cancer-related lymphedema (BCRL) of the upper limb is a very common condition in women undergoing breast cancer treatment; it can cause considerable alterations in the daily life of patients and a decrease in their health-related quality of life (HRQoL). Currently, there are many conservative therapies that try to palliate the symptoms, but the results are still controversial and there are still no globally accepted treatments. The purpose of this article is to determine the effect, according to the current available evidence, on HRQoL of different conservative interventions in the rehabilitation of BCRL in the upper limb in women. Eighteen articles that compared the effects of standard treatments, such as manual lymphatic drainage-based decongestive therapy or compression measures, and other newer treatments, including new technologies and other types of treatment programs, were reviewed. According to the results of this review, the most recommended modality for the improvement of HRQoL would be a complex decongestive technique without manual lymphatic drainage. Although there are clinical trials that have demonstrated the effectiveness of various treatments, the results of the positive effects on HRQoL remain highly controversial. There is a need to continue to develop studies to help guide therapeutic decisions that can promote HRQoL in women affected by upper limb BCRL.

Knowledge-building in surgery: An evolving craft.

In surgery, the construction of knowledge is shaped in two scenarios: evidence-based medicine, and experiential learning. The former has become an essential pillar in this process. Based on this fact, clinical practice guidelines have been developed. However, their transient nature, constant renewal, and lack of individualization distance them from daily clinical activity. On the other hand, there is the construction of knowledge through vicarious and experiential learning. Its existence is linked to the beginning of medicine, and its importance is irrefutable. However, it is laden with the "truth effect", surgical dogma and singularism. When integrating the construction of knowledge in these scenarios, critical thinking skills are paramount and necessary to guide the surgeon in the decision-making process within the context of surgical dynamism. This article explores this situation and its impact.

Percepción de la Virtualización de la Asignatura de Anatomía Humana Normal y Embriología en Pandemia / Perception of the Virtualization of the Subject of Normal Human Anatomy and Embriology in a Pandemic

Debido a la pandemia y las restricciones en cuanto a la presencialidad, diferentes metodologías de aprendizaje debieron ser exploradas e implementadas para virtualizar los contenidos en la asignatura de Anatomía. El objetivo de este trabajo fue evaluar la percepción de los docentes y alumnos con respecto a las metodologías utilizadas en la virtualización de dicha asignatura. Estudio observacional- descriptivo, con enfoque cuantitativo. La población de estudio correspondió a una muestra por conveniencia constituida por 57 alumnos y 4 docentes pertenecientes a la asignatura de Anatomía Humana Normal y Embriología de la carrera de Odontología, Universidad Andrés Bello, sede Viña del Mar, dictada el año 2021. Dichos participantes contestaron un cuestionario validado que contemplaba preguntas cerradas con escala de Likert de 5 niveles, considerando las dimensiones de aprendizaje, motivación y rendimiento, y preguntas de calificación para conocer la percepción sobre las estrategias y recursos utilizados. Los alumnos perciben positivamente todos los recursos digitales, destacando el Manual de Anatomía Humana Normal, siendo el aprendizaje, la dimensión mejor evaluada. La estrategia activa mejor percibida en cuanto a las 3 dimensiones corresponde a método de casos. Por el contrario, las clases invertidas fueron percibidas negativamente en todas las dimensiones. En relación a los docentes, el recurso digital mejor percibido fue videos y cápsulas, destacando la dimensión motivación. Las estrategias activas mejor evaluadas fueron método de casos y clases invertidas. Pese a haber una percepción positiva con respecto a la virtualización, no hay concordancia entre las estrategias activas y recursos digitales mejor evaluados entre docentes y alumnos.

SUMMARY: As a result of the pandemic and the restrictions regarding in person attendance, different learning methodologies had to be explored and implemented to virtualize the contents in the Anatomy subject. The objective of this study was to evaluate the perception of teachers and students regarding the methodologies used in the virtualization of this subject. An observational-descriptive study with a quantitative approach was carried out. The study population was a convenience sample made up of 57 students and 4 teachers of the Normal Human Anatomy and Embryology subject of the Dentistry degree, Universidad Andrés Bello, Viña del Mar campus during 2021. These participants answered a validated questionnaire that included closed questions with a 5-level Likert scale, considering learning dimensions, motivation and performance, and qualifying questions to find out the perception of the strategies and resources used. Students positively perceive all digital resources, highlighting the Normal Human Anatomy Manual, with learning being the best evaluated dimension. The best perceived active strategy in terms of the 3 dimensions corresponds to the case method. In contrast, the inverted classes were perceived negatively in all dimensions. In relation to teachers, the best perceived digital resource was videos and capsules, highlighting the motivation dimension. The best evaluated active strategies were the case method and inverted classes. Despite having a positive perception regarding virtualization, there is no agreement between the best evaluated active strategies and digital resources among teachers and students.

Las pirámides de la educación médica: una síntesis sobre su conceptualización y utilidad / Pyramids in medical education: Their conceptualization and utility summarized

Objetivos: Examinar los aspectos conceptuales que sustentan las pirámides educativas, sus limitaciones, las modificaciones que se han propuesto en algunas de ellas y hacer una descripción de su utilidad. Materiales y métodos: A partir de la selección de las pirámides con base en que el diseño gráfico hubiera sido parte de su conceptualización original, y de la descripción conceptual, se hace una reflexión de las críticas que han sido objeto y las modificaciones resultado de estas observaciones y del uso que se ha dado a las pirámides más comúnmente utilizadas en la educación médica. Resultados: Se incluyeron cinco pirámides: George Miller, Edgar Dale, Donald Kirkpatrick, Benjamín Bloom, y Abraham Maslow. Las pirámides describen diferentes aspectos de la evaluación en la educación médica, ya sea en los individuos o en los programas, tales como: competencias, identidad, confiabilidad, aprendizaje, comportamiento, resultado, complejidad cognitiva y realización personal. Conclusiones: Las pirámides revisadas han contribuido, como referentes teóricos, para el soporte de procesos educativos en las profesiones de la salud. Su utilidad práctica es extensiva a diferentes especialidades y niveles de educación por cuanto pueden asistir a los profesores para optimizar los procesos de diseño curricular, instruccional y de evaluación. Es importante evaluar, en el medio local, los efectos en los programas de ciencias de la salud que se han basado en estos referentes teóricos.

Objectives: To examine the conceptual underpinnings of learning pyramids, their limitations and some proposed modifications, and to describe their utility. Materials and methods: Starting with a selection of pyramids based on whether graphic design was part of their original design and on their conceptual description, we examined the criticisms they have received and the modifications derived from those observations, and the use given to the pyramids most commonly used in medical education. Results: Five pyramids were included, namely, George Miller, Edgar Dale, Donald Kirkpatrick, Benjamín Bloom and Abraham Maslow. Pyramids describe different aspects of medical education evaluation, either of individuals or of training programs, including competencies, identity, reliability, learning, behavior, results, cognitive complexity and self-realization. Conclusions: As theoretical models, the pyramids examined have contributed to support learning processes in health professions. Their practical utility extends to different specialties and education levels given that they can help faculty optimize curricular design, teaching and evaluation processes. It is important to conduct a local assessment of the effects on health science programs built on these theoretical models.

Cirugía en horario extendido: una visión de los actores involucrados / Extended hours surgery: a vision of the actors involved

Introducción. Las listas de espera para cirugía de alta prevalencia son producto de una limitada oferta ante una elevada demanda de jornadas quirúrgicas. Tienen un impacto sobre las condiciones médicas de los pacientes y la consulta por urgencias. Como respuesta, se han incorporado los espacios quirúrgicos adicionales en horarios no convencionales. Su creciente implementación, aunque controversial, se reconoce cada vez más como una nueva normalidad en cirugía. Hay una limitada documentación de la efectividad de la medida, debido a la complejidad e intereses de los participantes. Métodos. Se analizó desde una posición crítica y reflexiva la perspectiva de los actores involucrados en un programa de cirugía en horario extendido, estableciendo las posibles barreras y los elementos facilitadores de una política enfocada a procedimientos en horario no convencional. Asimismo, se describen posibles oportunidades de investigación en el tema. Discusión. Los programas quirúrgicos en horarios no convencionales implican un análisis de los determinantes de su factibilidad y éxito para establecer la pertinencia de su implementación. La disponibilidad de las salas de cirugía, una estandarización de los procedimientos y una cultura de seguridad institucional implementada por la normativa vigente, favorecen estas acciones operacionales. Los aspectos económicos del prestador y del asegurador inciden en la planeación y ejecución de esta modalidad de trabajo. Conclusión. La realización segura y el éxito de un programa de cirugía en horario no convencional dependen de la posibilidad de alinear los intereses de los actores participantes en el proceso

Introduction. Waiting lists for high-prevalence surgeries are the product of limited supply due to a high demand for surgical days. They have an impact on patients' medical conditions and emergency consultation. In response, additional surgical spaces have been incorporated at unconventional times. Its growing implementation, although controversial, is increasingly recognized as a new normal in surgery. There is limited documentation of the effectiveness of the measure due to the complexity and interests of the participants. Methods. The perspective of the actors involved in an extended hours surgery program was analyzed from a critical and reflective position, establishing the possible barriers, and facilitating elements of a policy focused on procedures during unconventional hours. Possible research opportunities on the topic are also described. Discussion. Surgical programs at unconventional times involve an analysis of the determinants of their feasibility and success to establish the relevance of implementation. The availability of operating rooms, a standardization of procedures and a culture of institutional security implemented by current regulations, favor these operational actions. The economic aspects of the provider and the insurer affect the planning and execution of this type of work. Conclusion. The safe realization and success of a surgical program in unconventional hours depend on the possibility of aligning the interests of the actors involved in the process