Consequences of the COVID-19 pandemic on the mental health of medical students202.

Several studies have shown an increased prevalence of anxiety, depression and suicidal ideation in the general population in relation to the COVID-19 pandemic.

Catalytic Asymmetric 1,3-Dipolar Cycloaddition/Hydroamination Sequence: Expeditious Access to Enantioenriched Pyrroloisoquinoline Derivatives.

A three-step reaction sequence has been developed to prepare a variety of enantioenriched pyrroloisoquinoline derivatives. The process involves a catalytic asymmetric azomethine ylide 1,3-dipolar cycloaddition followed by an intramolecular AuI-catalyzed alkyne hydroamination and enamine reduction.

Atroposelective Synthesis of Axially Chiral Naphthylpyrroles by a Catalytic Asymmetric 1,3-Dipolar Cycloaddition/Aromatization Sequence.

A straightforward methodology for the enantioselective preparation of axially chiral 2-naphthylpyrroles has been developed. This protocol is based on a CuI/Fesulphos-catalyzed highly enantioselective 1,3-dipolar cycloaddition of an azomethine ylide followed by pyrrolidine alkylation and pyrrolidine to pyrrole oxidation. The mild conditions employed in the DDQ/blue light-mediated aromatization process facilitate an effective central-to-axial chirality transfer affording the corresponding pyrroles with high atroposelectivity.

An unusual complication after transcatheter aortic valve implantation: a case report.

Background: Ventricular septal defect (VSD) is an unusual complication of transcatheter aortic valve implantation (TAVI). The risk factors are not well understood but may include oversizing, calcification amount and location, left-ventricular chamber morphology, and valve-in-valve (ViV) procedures. Percutaneous treatment is challenging but is usually the preferred option. Case summary: An 80-year-old woman with two previous surgical aortic valve replacements was admitted to our Cardiology Department for decompensated heart failure. New bioprosthesis degeneration (19 mm Mitroflow™, Sorin Group, Canada) was observed with severe intraprosthetic aortic regurgitation. After evaluation, the heart team chose to perform ViV TAVI. Because of the high risk of coronary obstruction, chimney stenting of both coronary arteries was performed. A 23 mm self-expandable Navitor™ valve (Abbott, IL, USA) was implanted, but the Mitroflow™ valve had to be cracked to minimize the persistent high gradient. During valve fracture, the non-compliant balloon broke and a small iatrogenic VSD appeared. However, the patient remained stable, so conservative management was selected. During follow-up, she developed severe haemolytic anaemia and heart failure; therefore, percutaneous closure of the iatrogenic VSD was performed twice, which was a difficult challenge. Discussion: A viable alternative to redo surgery is ViV TAVI. Risks include higher rates of prosthesis-patient mismatch and coronary obstruction. Occasionally, bioprosthetic valve fracture is required, particularly in small bioprostheses, to achieve low gradients. Anecdotally, fracture has led to annular rupture and VSD. Most VSDs are small and without clinical or haemodynamic repercussions; however, in symptomatic cases, percutaneous closure is a viable alternative to surgery.

Sudden Death Due to Thrombosis Associated with Implantable Cardioverter-Defibrillator Electrodes.

Thrombosis associated with pacemaker leads is extremely rare, although the literature on this subject is scarce. A clinical case is reported, describing this condition and its clinical presentation, the complementary tests for establishing the diagnosis and the available therapeutic options. LEARNING POINTS: Thrombosis associated with pacemaker leads is extremely rare.The different causes that contribute to thrombosis all have Virchow's triad (blood stasis, endothelial injury/dysfunction and hypercoagulability) in common.Transthoracic and/or transoesophageal Doppler echocardiography is the gold standard for establishing the diagnosis, while the treatment options are anticoagulation, thrombolysis and surgical or endovascular embolectomy.

Catalytic asymmetric synthesis of diazabicyclo[3.1.0]hexanes by 1,3-dipolar cycloaddition of azomethine ylides with azirines.

Substituted 1,3-diazabicyclo[3.1.0]hexanes with two contiguous quaternary stereocentres are readily prepared by catalytic asymmetric [3+2] cycloaddition of α-substituted iminoesters with azirines. High diastereoselectivities and enantioselectivities (up to 98% ee) are achieved using CuI/(R)-Fesulphos as the catalytic system.

Consecuencias de la pandemia COVID-19 en la salud mental de los estudiantes de medicina / Consequences of the covid-19 pandemic on the mental health of medical students

Introducción. Diversos estudios han demostrado un aumento de la prevalencia de ansiedad, depresión e ideación suicida en la población general en relación con la pandemia COVID-19. Esta prevalencia ha mostrado ser todavía mayor en estudiantes universitarios. El objetivo del presente estudio es analizar la repercusión psicológica sobre los estudiantes de Medicina de la Universidad de Granada y los posibles factores asociados a este impacto. Material y métodos. Se diseñó un cuestionario en formato Google Forms con escalas validadas para ansiedad, depresión e ideación suicida, así como cuestiones sobre otras variables de interés. La recogida de datos se realizó entre marzo y abril 2020. La participación fue voluntaria y anónima. Se realizaron análisis multivariantes de los resultados mediante técnicas de regresión logística para controlar los resultados por múltiples variables de confusión. Resultados. Un total de 297 respuestas fueron recibidas. De los participantes, 215 eran mujeres (72,39%). Se detectó una prevalencia de ansiedad del 51,18%, 70,03% de depresión y 16,84% de ideación suicida. Los principales factores asociados con un mayor grado de morbilidad psíquica fueron, puntuar más alto en la escala de miedo al covid, la presencia comorbida de síntomas de ansiedad y depresión, tener antecedentes previos de ideación suicida o haber consultado con un psiquiatra antes de la pandemia. Conclusión. Los resultados son concordantes con los estudios previos realizados en otras universidades a nivel internacional. Sería recomendable realizar nuevas investigaciones en otras universidades españolas e instaurar programas de prevención y de apoyo psicológico a los estudiantes. (AU)

Introduction. Several studies have shown an increased prevalence of anxiety, depression and suicidal ideation in the general population in relation to the COVID-19 pandemic. This prevalence has been shown to be even higher among university students. The aim of the present study is to analyze the psychological impact on medical students at the University of Granada and the possible factors associated with this impact. Method. A questionnaire was designed in Google Forms with validated scales for anxiety, depression and suicidal ideation, as well as questions about other variables of interest. Data collection took place between March and April 2020. Participation was voluntary and anonymous. Multivariate analysis of the results was performed using logistic regression techniques to control for multiple confounding variables. Results. A total of 297 responses were received. Of the participants, 215 were women (72.39%). A prevalence of anxiety of 51.18%, 70.03% of depression and 16.84% of suicidal ideation was detected. The main factors associated with a higher degree of psychological morbidity were higher scores on the covid fear scale, the comorbid presence of anxiety and depressive symptoms, a previous history of suicidal ideation, or having consulted a psychiatrist before the pandemic. Conclusion: The results are consistent with previous studies carried out in other universities at an international level. It would be advisable to conduct further research in other Spanish universities and to set up prevention and psychological support programs for students. (AU)

[Not Available]. / Coaching nutricional para la pérdida de peso.

Introducción: debido a la alta prevalencia de sobrepeso y obesidad se hacen necesarias nuevas estrategias para su prevención y tratamiento. El coaching nutricional (CN) ha emergido en los últimos años y ha demostrado ser efectivo para la pérdida de peso aunque, al ser un concepto innovador, no siempre se utiliza apropiadamente. Objetivo: verificar si el CN, junto con el asesoramiento técnico, es una estrategia efectiva para la disminución de peso en población con sobrepeso u obesidad en comparación con el asesoramiento nutricional por sí solo. Material y métodos: se revisó la bibliografía referente a CN para determinar los parámetros de calidad en cuanto a esta intervención. Se realizó una búsqueda de estudios controlados aleatorizados que aplicaran CN según los parámetros seleccionados y lo compararan con asesoramiento técnico nutricional. Resultados: se analizaron ocho estudios con alta calidad en la intervención de coaching y calidad metodológica media o alta. Seis de ellos indicaron diferencias significativas a favor del grupo que recibió CN. Conclusión: el CN es una estrategia efectiva para bajar de peso. Se necesitan más investigaciones con una definición clara de la metodología utilizada para aportar solidez a este nuevo enfoque.

Coaching nutricional para la pérdida de peso / Nutritional coaching for weight loss

Introducción: debido a la alta prevalencia de sobrepeso y obesidad se hacen necesarias nuevas estrategias para su prevención y tratamiento. El coaching nutricional (CN) ha emergido en los últimos años y ha demostrado ser efectivo para la pérdida de peso aunque, al ser un concepto innovador, no siempre se utiliza apropiadamente. Objetivo: verificar si el CN, junto con el asesoramiento técnico, es una estrategia efectiva para la disminución de peso en población con sobrepeso u obesidad en comparación con el asesoramiento nutricional por sí solo. Material y métodos: se revisó la bibliografía referente a CN para determinar los parámetros de calidad en cuanto a esta intervención. Se realizó una búsqueda de estudios controlados aleatorizados que aplicaran CN según los parámetros seleccionados y lo compararan con asesoramiento técnico nutricional. Resultados: se analizaron ocho estudios con alta calidad en la intervención de coaching y calidad metodológica media o alta. Seis de ellos indicaron diferencias significativas a favor del grupo que recibió CN. Conclusión: el CN es una estrategia efectiva para bajar de peso. Se necesitan más investigaciones con una definición clara de la metodología utilizada para aportar solidez a este nuevo enfoque (AU)

Introduction: Due to the high prevalence of overweight and obesity new strategies are needed for its prevention and treatment. Nutritional coaching (NC) has been shown to be effective in weight reduction although, due to the novelty of this concept, it’s not always used properly. Objective: To verify if NC, in addition to dietary assessment, is an effective approach to weight loss in overweight or obese population compared to technical dietary assessment. Material and methods: We performed a search for papers related to NC to establish quality parameters for this intervention. A systematic review was conducted, including randomized controlled trials that apply CN according to the selected parameters and comparing it with technical dietary assessment. Results: Eight high quality studies were included in the analysis. Among these, six revealed statistical differences on behalf of the group that received NC. Conclusion: Nutritional coaching is an effective approach for weight reduction. Future nutritional coaching intervention research would benefit from clear definitions of this new model (AU)

Angiosarcoma cardiaco en imágenes / Cardiac angiosarcoma in images

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