Multidimensional analysis of immune cells from COVID-19 patients identified cell subsets associated with the severity at hospital admission.

BACKGROUND: SARS-CoV-2 emerged as a new coronavirus causing COVID-19, and it has been responsible for more than 760 million cases and 6.8 million deaths worldwide until March 2023. Although infected individuals could be asymptomatic, other patients presented heterogeneity and a wide range of symptoms. Therefore, identifying those infected individuals and being able to classify them according to their expected severity could help target health efforts more effectively. METHODOLOGY/PRINCIPAL FINDINGS: Therefore, we wanted to develop a machine learning model to predict those who will develop severe disease at the moment of hospital admission. We recruited 75 individuals and analysed innate and adaptive immune system subsets by flow cytometry. Also, we collected clinical and biochemical information. The objective of the study was to leverage machine learning techniques to identify clinical features associated with disease severity progression. Additionally, the study sought to elucidate the specific cellular subsets involved in the disease following the onset of symptoms. Among the several machine learning models tested, we found that the Elastic Net model was the better to predict the severity score according to a modified WHO classification. This model was able to predict the severity score of 72 out of 75 individuals. Besides, all the machine learning models revealed that CD38+ Treg and CD16+ CD56neg HLA-DR+ NK cells were highly correlated with the severity. CONCLUSIONS/SIGNIFICANCE: The Elastic Net model could stratify the uninfected individuals and the COVID-19 patients from asymptomatic to severe COVID-19 patients. On the other hand, these cellular subsets presented here could help to understand better the induction and progression of the symptoms in COVID-19 individuals.

Pharmacist care in hospital emergency departments: a consensus paper from the Spanish hospital pharmacy and emergency medicine associations. / Atención farmacéutica en los servicios de urgencias: documento de posicionamiento de la Sociedad Española de Farmacia Hospitalaria (SEFH) y la Sociedad Española de Medicina de Urgencias y Emergencias (SEMES).

OBJECTIVES: To draft a list of actions and quality indicators for pharmacist care in hospital emergency departments, based on consensus among a panel of experts regarding which actions to prioritize in this setting. MATERIAL AND METHODS: A panel of experts from the Spanish Society of Hospital Pharmacy (SEFH) and the Spanish Society of Emergency Medicine (SEMES) evaluated a preliminary list of potential actions and quality of care indicators. The experts used a questionnaire to assess the proposals on the basis of available evidence. In the first round, each expert individually assessed the importance of each proposed action based on 4 dimensions: evidence base, impact on clinical response and patient safety, ease of implementation, and priority. In the second round the experts attended a virtual meeting to reach consensus on a revised list of proposals; suggestions and comments that had been made anonymously in the first round were included. The group then prioritized each action as basic, intermediate, or advanced. RESULTS: The experts evaluated a total of 26 potential actions and associated quality indicators. No items were eliminated in the analysis of scores and comments from the first round. After the second round, 25 actions survived. Nine were considered basic, 10 intermediate, and 6 advanced. CONCLUSION: The expert panel's list of pharmacist actions and care quality indicators provides a basis for developing a pharmacist care program in Spanish emergency departments on 3 levels of priority. The list can serve as a guide to pharmacists, managers, physicians, and nurses involved in the effort to improve drug therapy in this hospital setting.

OBJETIVO: Desarrollar un conjunto de actividades e indicadores de atención farmacéutica en los servicios de urgencias hospitalarios mediante un consenso colectivo de un panel de expertos que permita priorizar las actividades a realizar por los farmacéuticos en estas unidades. METODO: Un comité formado por miembros de la Sociedad Española de Farmacia Hospitalaria (SEFH) y de la Sociedad Española de Medicina de Urgencias y Emergencias (SEMES) evaluó una propuesta inicial de actividades e indicadores potenciales, basados en la evidencia científica disponible, en formato de cuestionario. En una primera ronda, cada uno de los expertos del panel clasificó de forma individual la relevancia de cada una de las actividades propuestas en cuatro dimensiones: evidencia científica, impacto en la respuesta clínica y seguridad para el paciente, facilidad de implementación y grado de prioridad. La segunda ronda se realizó mediante una reunión grupal de forma virtual, a partir del cuestionario modificado de acuerdo con las sugerencias planteadas, así como los comentarios vertidos por los participantes del panel de forma anónima. En esta ronda, cada actividad fue clasificada por consenso como básica, intermedia o avanzada en función del grado de prioridad de implantación considerado por el grupo de expertos. RESULTADOS: Se propusieron un total de 26 potenciales actividades a los expertos, con indicadores asociados. Tras el análisis de las puntuaciones y los comentarios realizados en la primera ronda, no se eliminó ninguna de las actividades propuestas. Tras la segunda ronda, se mantuvieron 25 actividades, de las cuales se puntuaron 9 como actividades básicas, 10 actividades como intermedias y 6 actividades como avanzadas. CONCLUSIONES: El desarrollo del conjunto de actividades e indicadores de atención farmacéutica en urgencias, priorizados por grado de relevancia para la unidad, es la base para el desarrollo de esta cartera de servicios en los hospitales españoles, y sirve como guía tanto para farmacéuticos como para gestores, médicos y enfermeros de la unidad a fin de mejorar la farmacoterapia los pacientes atendidos en los servicios de urgencias.

ABO blood group is involved in the quality of the specific immune response anti-SARS-CoV-2.

Since December 2019, the coronavirus disease 2019 (COVID-19), caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), has spread throughout the world. To eradicate it, it is crucial to acquire a strong and long-lasting anti-SARS-CoV-2 immunity, by either natural infection or vaccination. We collected blood samples 12-305 days after positive polymerase chain reactions (PCRs) from 35 recovered individuals infected by SARS-CoV-2. Peripheral blood mononuclear cells were stimulated with SARS-CoV-2-derived peptide pools, such as the spike (S), nucleocapsid (N) and membrane (M) proteins, and we quantified anti-S immunoglobulins in plasma. After 10 months post-infection, we observed a sustained SARS-CoV-2-specific CD4+ T-cell response directed against M-protein, but responses against S- or N-proteins were lost over time. Besides, we demonstrated that O-group individuals presented significantly lower frequencies of specific CD4+ T-cell responses against Pep-M than non O-group individuals. The non O-group subjects also needed longer to clear the virus, and they lost cellular immune responses over time, compared to the O-group individuals, who showed a persistent specific immune response against SARS-CoV-2. Therefore, the S-specific immune response was lost over time, and individual factors might determine the sustainability of the body's defenses, which must be considered in the future design of vaccines to achieve continuous anti-SARS-CoV-2 immunity.

Managing urticaria in the emergency department: recommendations of a multidisciplinary expert panel. / Manejo de la urticaria en urgencias: recomendaciones de un grupo multidisciplinar de expertos.

Urticaria and angioedema account for many visits to emergency departments. It is important to diagnose and treat them properly at this level of care and to suggest treatments and guidance that can make additional visits unnecessary. A panel of experts in dermatology and emergency medicine reviewed the main guidelines and publications on urticaria and angioedema. The panel then developed and reached consensus on practical approaches and tools for managing urticaria, angioedema, and anaphylaxis in the emergency department. The resulting statement is a guide to management, with algorithms for differential diagnosis and treatment and recommendations for patient referral. Implementing these guidelines, which are supported by the Spanish Academy of Dermatology and Venereology (AEDV) and the Spanish Society of Emergency Medicine (SEMES) will facilitate optimal management of emergency department patients with urticaria and angioedema as well as improve interdepartmental relations.

La urticaria y el angioedema ocasionan consultas frecuentes en los servicios de urgencias. Por ello, es importante que sean diagnosticados y tratados correctamente en este nivel asistencial y ofrecer un tratamiento y unas pautas de derivación adecuados para evitar visitas adicionales. Un grupo de expertos en dermatología y en medicina de urgencias y emergencias ha revisado las principales guías y publicaciones, y ha desarrollado y consensuado una herramienta práctica para el abordaje de la urticaria, el angioedema y la anafilaxia en urgencias. Presentamos una guía de manejo, un algoritmo basado en el diagnóstico diferencial, un algoritmo terapéutico y unas recomendaciones de derivación de los pacientes. La implementación de esta guía, avalada por la Sociedad Española de Dermatología (AEDV) y la Sociedad Española de Medicina de Urgencias y Emergencias (SEMES), permitirá optimizar el manejo de los pacientes con urticaria y angioedema en urgencias, y mejorará la interrelación con otros servicios.

Comprehensive Flow Cytometry Profiling of the Immune System in COVID-19 Convalescent Individuals.

SARS-CoV-2 has infected more than 200 million people worldwide, with more than 4 million associated deaths. Although more than 80% of infected people develop asymptomatic or mild COVID-19, SARS-CoV-2 can induce a profound dysregulation of the immune system. Therefore, it is important to investigate whether clinically recovered individuals present immune sequelae. The potential presence of a long-term dysregulation of the immune system could constitute a risk factor for re-infection and the development of other pathologies. Here, we performed a deep analysis of the immune system in 35 COVID-19 recovered individuals previously infected with SARS-CoV-2 compared to 16 healthy donors, by flow cytometry. Samples from COVID-19 individuals were analysed from 12 days to 305 days post-infection. We observed that, 10 months post-infection, recovered COVID-19 patients presented alterations in the values of some T-cell, B-cell, and innate cell subsets compared to healthy controls. Moreover, we found in recovered COVID-19 individuals increased levels of circulating follicular helper type 1 (cTfh1), plasmablast/plasma cells, and follicular dendritic cells (foDC), which could indicate that the Tfh-B-foDC axis might be functional to produce specific immunoglobulins 10 months post-infection. The presence of this axis and the immune system alterations could constitute prognosis markers and could play an important role in potential re-infection or the presence of long-term symptoms in some individuals.

[Translation and cross-cultural adaptation into Spanish, Catalan and Galician of the Hopkins Symptom Checklist-25 to identify depression in Primary Care]. / Traducción y adaptación transcultural al español, catalán y gallego de la escala Hopkins Symptom Checklist-25 para la detección de depresión en Atención Primaria.

AIM: To describe the translation and cross-cultural adaptation process of the Hopkins Symptom Checklist-25 (HSCL-25) scale into Spanish, Catalan and Galician. DESIGN: Translation, cross-cultural adaption and comprehensibility analysis through cognitive debriefing. LOCATION: Research Units of Primary Care in Barcelona and Vigo. PARTICIPANTS: Family doctors and Primary Care patients. MAIN MEASUREMENTS: Following the guidelines of the International Society for Pharmacoeconomics and Outcomes Research (ISPOR): 1) Direct translation. 2) Pilot study based on Delphi methodology with family doctors. 3) Back-translation. 4) Equivalence analysis. 5) Comprehension analysis of versions obtained in Spanish, Catalan and Galician through cognitive debriefing in a sample of patients. 6) Transcultural harmonization. RESULTS: 73 family doctors participated in the Delphi study. The consensus was established in the first round for the Spanish and Catalan translations, and in the second round for the Galician. The back-translations were similar in all 3languages. All versions were equivalent between them and compared to the original English version. In the cognitive interview, 10 patients participated for each language, without modifying the writing of the items. CONCLUSIONS: The translations of the HSCL-25 scale in Spanish, Catalan and Galician are semantically and conceptually equivalent to the original version. Translations are understandable and well accepted by patients.