Risk factors for acute kidney injury in patients hospitalized with COVID-19 / Fatores de risco para lesão renal aguda em pacientes hospitalizados com COVID-19

Abstract Introduction: Acute kidney injury (AKI) occurs frequently in COVID-19 patients and is associated with greater morbidity and mortality. Knowing the risks of AKI allows for identification, prevention, and timely treatment. This study aimed to identify the risk factors associated with AKI in hospitalized patients. Methods: A descriptive, retrospective, cross-sectional, and analytical component study of adult patients hospitalized with COVID-19 from March 1 to December 31, 2020 was carried out. AKI was defined by the creatinine criteria of the KDIGO-AKI guidelines. Information, regarding risk factors, was obtained from electronic medical records. Results: Out of the 934 patients, 42.93% developed AKI, 60.59% KDIGO-1, and 9.9% required renal replacement therapy. Patients with AKI had longer hospital stay, higher mortality, and required more intensive care unit (ICU) admission, mechanical ventilation, and vasopressor support. Multivariate analysis showed that age (OR 1.03; 95% CI 1.02-1.04), male sex (OR 2.13; 95% CI 1.49-3.04), diabetes mellitus (DM) (OR 1.55; 95% CI 1.04-2.32), chronic kidney disease (CKD) (OR 2.07; 95% CI 1.06-4.04), C-reactive protein (CRP) (OR 1.02; 95% CI 1.00-1.03), ICU admission (OR 1.81; 95% CI 1.04-3.16), and vasopressor support (OR 7.46; 95% CI 3.34-16.64) were risk factors for AKI, and that bicarbonate (OR 0.89; 95% CI 0.84-0.94) and partial pressure arterial oxygen/inspired oxygen fraction index (OR 0.99; 95% CI 0.98-0.99) could be protective factors. Conclusions: A high frequency of AKI was documented in COVID-19 patients, with several predictors: age, male sex, DM, CKD, CRP, ICU admission, and vasopressor support. AKI occurred more frequently in patients with higher disease severity and was associated with higher mortality and worse outcomes.

RESUMO Introdução: Lesão renal aguda (LRA) ocorre frequentemente em pacientes com COVID-19 e associa-se a maior morbidade e mortalidade. Conhecer riscos da LRA permite a identificação, prevenção e tratamento oportuno. Este estudo teve como objetivo identificar fatores de risco associados à LRA em pacientes hospitalizados. Métodos: Realizou-se estudo descritivo, retrospectivo, transversal e de componente analítico de pacientes adultos hospitalizados com COVID-19 de 1º de março a 31 de dezembro, 2020. Definiu-se a LRA pelos critérios de creatinina das diretrizes KDIGO-LRA. Informações sobre fatores de risco foram obtidas de prontuários eletrônicos. Resultados: Dos 934 pacientes, 42,93% desenvolveram LRA, 60,59% KDIGO-1 e 9,9% necessitaram de terapia renal substitutiva. Pacientes com LRA apresentaram maior tempo de internação, maior mortalidade e necessitaram de mais internações em UTIs, ventilação mecânica e suporte vasopressor. A análise multivariada mostrou que idade (OR 1,03; IC 95% 1,02-1,04), sexo masculino (OR 2,13; IC 95% 1,49-3,04), diabetes mellitus (DM) (OR 1,55; IC 95% 1,04-2,32), doença renal crônica (DRC) (OR 2,07; IC 95% 1,06-4,04), proteína C reativa (PCR) (OR 1,02; IC 95% 1,00-1,03), admissão em UTI (OR 1,81; IC 95% 1,04-3,16) e suporte vasopressor (OR 7,46; IC 95% 3,34-16,64) foram fatores de risco para LRA, e que bicarbonato (OR 0,89; IC 95% 0,84-0,94) e índice de pressão parcial de oxigênio arterial/fração inspirada de oxigênio (OR 0,99; IC 95% 0,98-0,99) poderiam ser fatores de proteção. Conclusões: Documentou-se alta frequência de LRA em pacientes com COVID-19, com diversos preditores: idade, sexo masculino, DM, DRC, PCR, admissão em UTI e suporte vasopressor. LRA ocorreu mais frequentemente em pacientes com maior gravidade da doença e associou-se a maior mortalidade e piores desfechos.

Cobertura de vacunación contra COVID-19 e influenza en personal de salud y administrativo en Paraguay

Introducción: A nivel mundial, la cobertura de vacunación contra el COVID-19, así como contra la influenza es baja tanto en la población general como en los profesionales de la salud a pesar de que la vacuna es gratuita y obligatoria en el personal sanitario. Objetivo: Describir la cobertura de vacunación contra el COVID -19, y la influenza en personal de salud y administrativo de un hospital de referencia del Ministerio de Salud Pública y Bienestar Social en el periodo 2021-2022. Metodología: Estudio observacional descriptivo de corte trasverso. Se hizo la revisión de los registros del personal sanitario y administrativo del centro vacunatorio del Hospital Nacional de Itauguá de la campaña vacunal contra el COVID-19 y de anti-influenza en el periodo 2021- 2022. Resultados: De los 3.586 funcionarios, 999 (27,9 %) eran médicos, 1494 (41,7 %) personal de enfermería, 366 (10,2 %) otra categoría de personal sanitario, y 727 (20,3 %) personal administrativo. En forma global, el 86,5 % de los funcionarios recibió por lo menos las dos dosis que constituyen el esquema primario y el 73 % la dosis de refuerzo. El 2,1 % del personal no recibió ninguna dosis de vacuna anti covid-19, la cifra fue mayor en el personal administrativo (4,8 %). La cobertura de vacunación contra la influenza fue de 20 % en el 2021 y 25 % en el 2022. Discusión: Si bien cobertura de vacunación anti-COVID-19 fue comparable a otros países, la vacunación contra la influenza fue muy baja. Es urgente implementar estrategias dirigidas a aumentar la percepción de riesgo y aceptabilidad de las vacunas obligatorias para el personal sanitario.

Introduction: Worldwide, vaccination coverage against COVID-19, as well as against influenza, is low both in the general population and in health professionals, despite the fact that the vaccine is free and mandatory for health personnel. Objective: To describe the COVID -19 and influenza vaccination coverage in health and administrative personnel of a reference hospital of the Ministry of Public Health and Social Welfare in the period 2021-2022. Methods: Cross-sectional descriptive observational study. Charts of the health and administrative personnel of the vaccination center of the Itauguá National Hospital of the COVID-19 and influenza vaccination campaign in the period 2021-2022 were reviewed. Results: Of the 3,586 personnel, 999 (27.9%) were medical personnel, 1,494 (41.7%) nursing personnel, 366 (10.2%) other category of health personnel, and 727 (20.3%) administrative personnel. Overall, 86.5% of the employees received at least the two doses that constitute the primary schedule and 73% the booster dose; 2.1% of the staff did not receive any dose of the anti COVID-19 vaccine, which was higher in the administrative staff (4.8%). Influenza vaccination coverage was 20% in 2021 and 25% in 2022. Discussion: Even though the vaccination coverage of anti-COVID-19 was comparable to other countries, vaccination anti-influenza was very low. It is urgent to implement strategies aimed at increasing the perception of risk and acceptability of mandatory vaccines for health personnel.

Manifestaciones orales del COVID-19 en Paraguay: resultados de una encuesta en línea

Introducción: Estudios previos han reportado que pacientes infectados con el virus del COVID-19, podrían manifestar sintomatologías a nivel de la cavidad oral. Objetivo: Evaluar la frecuencia de manifestaciones orales asociadas a COVID-19 en un segmento de la población paraguaya y determinar cuáles son las más prevalentes. Metodología: Estudio descriptivo de corte transversal. Fue realizada una encuesta electrónica de enero a marzo del 2022. Los datos fueron presentados como frecuencias y porcentajes y analizados mediante la prueba de chi-cuadrado. El análisis estadístico se realizó con el software R versión 4.0.3. Resultados: La muestra estuvo compuesta por 478 personas. El 79,50 % correspondió al sexo femenino y el 45,19 % tenía entre 25 y 34 años. El 65,48 % informó haber experimentado al menos 1 síntoma o signo oral durante el curso de COVID-19. La pérdida de la sensación de sabores amargos, seguida de la alteración del sabor de los alimentos y la pérdida de la percepción dulce, fueron los síntomas más comunes. Se encontró una proporción significativamente mayor de manifestaciones orales en el rango de 18-24 años (χ²; p= 0,003). Entre las personas que desarrollaron COVID-19 de forma moderada a severa hubo mayor número de manifestaciones de síntomas orales (χ²; p= 0,044). Discusión: Se identificó una alta frecuencia de manifestaciones orales en pacientes con casos de moderados a severos de COVID-19, destacándose los trastornos del gusto como los más predominantes. Los individuos más jóvenes fueron los más afectados.

Introduction: Previous studies have reported that patients infected with the COVID-19 virus could manifest symptoms in the oral cavity. Objective: To evaluate the frequency of oral manifestations associated with COVID-19 in a segment of the Paraguayan population and determine the most prevalent ones. Methods: Descriptive cross-sectional study. An electronic survey was conducted from January to March 2022. The data were presented as frequencies and percentages and analyzed using the chi-square test. Statistical analysis was performed with R software version 4.0.3. Results: The sample consisted of 478 individuals. 79.50% were female, and 45.19% were between 25 and 34 years old. 65.48% reported having experienced at least 1 oral symptom or sign during the course of COVID-19. The loss of the sensation of bitter tastes, followed by the alteration of the taste of foods and the loss of sweetness perception, were the most common symptoms. A significantly higher proportion of oral manifestations was found in the 18-24 age range (χ²; p= 0.003). Among people who developed COVID-19 in a moderate to severe form, a greater number of oral symptom manifestations were observed (χ²; p= 0.044). Discussion: A high frequency of oral manifestations was identified in patients with moderate to severe cases of COVID-19, with taste disorders standing out as the most predominant. Younger individuals were the most affected.

Proporção de casos nosocomiais de COVID-19 no Brasil: análise de seus fatores associados em 1.631.47 registros de 2020 a 2022 / Proporción de casos nosocomiales de COVID-19 en Brasil: análisis de sus factores asociados en 1.631.47 registros de 2020 a 2022 / Proportionof nosocomial cases of COVID-19 in Brazil: analysisof1.631.47 case records from 2020 to 2022

Introdução: Infecções nosocomiais, adquiridas após a internação hospitalar, são o evento adverso mais comum que ameaça a saúde dos pacientes hospitalizados, sendo a pneumonia, incluindo a causada pelo SARS-Cov-2, responsável por mais de 80% das infecções nosocomiais. A pandemia declarada pela OMS em março de 2020 reflete o rápido aumento de casos, impulsionado pela disseminação do vírus através de gotículas e aerossóis. A transmissão nosocomial do SARS-Cov-2 foi observada desde o início do surto em Wuhan, representando um desafio adicional na qualidade de vida dos pacientes. Estudos internacionais em hospitais reportam incidências de infecção nosocomial por COVID-19 entre 11% e 44%.Objetivo: Identificar a proporção de infecção nosocomial por SARS-COV-2 no Brasil entre março de 2020 até dezembro de 2022.Metodologia:Trata-se de um estudo analítico, retrospectivo, de corte transversal, sobre a proporção de infecção nosocomial por Sars-Cov-2 no Brasil, através de dados secundários oriundos do Sistema de Informação da Vigilância Epidemiológica da Gripe. No presente estudo a variável dependente analisada foi a proporção de infecção nosocomial por Sars-cov-2. Como variáveis independentes exploratórias foram utilizadas: faixa etária, sexo, comorbidades e macrorregião de residência. Resultados: O estudo identificou uma proporção de casos nosocomiais de 2,58%, sendo maior no terceiro ano da pandemia 2022 (5,5%) na região Norte (7,57%), entre os indivíduos de 18-59 anos de idade (6,93%)Conclusões: Este estudo sobre casos nosocomiais de COVID-19 no Brasil revela uma proporção de 2,58% entre 2020 e 2022, com associações identificadas em relação à região, idade e comorbidades. Diferenças em relação a estudos internacionais sugerem questões metodológicas específicas. Essa pesquisa é de importância crítica, visto ser de abrangência nacional com grande amplitude, e estabelece uma base sólida para futuros estudos epidemiológicos (AU).

Introduction: Nosocomial infections, acquired after hospital admission, are the most common adverse events threatening patient health, with pneumonia, including that caused by SARS-CoV-2, responsible for over 80% of nosocomial infections. The pandemic declared by the WHO in March 2020 reflects the rapid rise in cases driven by the virus's spread through droplets and aerosols. Nosocomial transmission of SARS-CoV-2 has been observed since the outbreak's onset in Wuhan, posing an additional challenge to patient quality of life. International hospital studies report nosocomial COVID-19 infection rates between 11% and 44%. Objective: Identifying the proportion of nosocomial SARS-CoV-2 infection in Brazil between March 2020 and December 2022.Methodology:This is an analytical, retrospective, cross-sectional study on the proportion of nosocomial SARS-CoV-2 infection in Brazil, using secondary data from the Influenza Epidemiological Surveillance Information System. In this study, the analyzed dependent variable was the proportionof nosocomial SARS-CoV-2 infection. The exploratory independent variables included: age group, gender, comorbidities, and macro-region of residence.Results:The study identified a proportion of nosocomial cases of 2.58%, with a higher proportion in the third year of the pandemic, 2022 (5.5%) in the North region (7.57%), among individuals aged 18-59 years (6.93%). Conclusions: This study on nosocomial cases of COVID-19 in Brazil reveals a proportion of 2.58% between 2020 and 2022, with associations identified regarding region, age, and comorbidities. Differences compared to international studies suggest specific methodological issues. This research is of critical importance, given its national scope and broad coverage, and establishes a solid foundation for future epidemiological studies (AU).

Introducción: Las infecciones nosocomiales, adquiridas tras la hospitalización, son el evento adverso más común que amenaza la salud de los pacientes hospitalizados, siendo la neumonía, incluida la causada por el SARS-Cov-2, la responsable de más del 80% de las infecciones. La pandemia declarada por la OMS en marzo de 2020 refleja el rápido aumento de casos, impulsado por la propagación del virus a través de gotitas y aerosoles. La transmisión nosocomial del SRAS-Cov-2 se ha observado desde el inicio del brote en Wuhan, lo que supone un reto adicional para la calidad de vida de los pacientes. Estudios internacionales realizados en hospitales informan de incidencias de infecciones nosocomiales por COVID-19 de entre el 11% y el 44%. Objetivo: Identificar la proporción de infección nosocomial por SARS-CoV-2 en Brasil entre marzo de 2020 y diciembre de 2022. Metodología: Se trata de un estudio analítico, retrospectivo y transversal sobre la proporción de infección nosocomial por SARS-CoV -2 en Brasil, utilizando datos secundarios del Sistema de Información de Vigilancia Epidemiológica de Influenza. La variable dependiente analizada fue la proporción de infección nosocomial por SARS-CoV-2. Como variables independientes exploratorias se utilizaron: grupo de edad, sexo, comorbilidades y macrorregión de residencia. Resultados:El estudio identificó una proporción de casos nosocomiales del 2,58%, siendo mayor en el tercer año de la pandemia de 2022 (5,5%) en la región Norte (7,57%), entre individuos de 18 a 59 años (6,93%). Conclusiones:Este estudio de casos de COVID-19 hospitalizados en Brasil revela una proporción de 2,58% entre 2020 y 2022, con asociaciones identificadas en relación a la región, edad y comorbilidades. Las disparidades en relación a estudios internacionales sugieren la presencia de cuestiones metodológicas específicas. Esta investigación es de extrema importancia para orientar estrategias preventivas y mejorar el control de las infecciones hospitalarias (AU).

Costo y porcentaje de gasto en salud por COVID-19 en primer nivel de atención / Cost and percentage of health spending by COVID-19 at the first level of care

Antecedentes. Ante la pandemia de COVID-19 el sistema de salud reasignó recursos económicos para la atención. Objetivo. Determinar el costo de la atención y el porcentaje del gasto en salud por COVID-19 en una unidad de medicina familiar de primer nivel de atención. Metodología. Estudio de costo y porcentaje de gasto en COVID-19 en una unidad de primer nivel de atención. Se identificaron los servicios generales y finales, para construir el costo fijo se utilizó la técnica de tiempos y movimientos, se identificaron el total de partidas presupuestales ejercidas en la unidad médica para cada uno de los servicios, para desagregar el gasto de los servicios generales a los finales se construyeron ponderadores. El costo variable se realizó con la técnica consenso de expertos y microcosteo. El costo promedio se relacionó con la productividad por servicio y con el total de pacientes atendidos por COVID-19, el resultado se relacionó con el presupuesto ejercido de la unidad. Resultados. El costo anual de la atención de COVID-19 en módulo respiratorio fue 158.597,25 dólares americanos, en medicina familiar fue 192.549,36 dólares americanos, el costo total ejercido en el año 2021 para atención de SARS COV 2 en una unidad de primera atención fue 351.146,61 dólares americanos. Esta cantidad representa el 9,6 % del gasto en salud. Conclusión. El costo en atención de COVID-19 y el porcentaje del gasto en salud en primer nivel de atención es elevado (AU)

Background. In the COVID-19 pandemic, the health system reallocated financial resources for care. Objetive. To determine the cost of care and the percentage of health spending due to COVID-19 in a first level care family medicine unit. Metodology. Study of the cost and percentage of spending on COVID-19 in a first-level care unit. The general and final services were identified, to construct the fixed cost, the technique of times and movements was used, the total budget items exercised in the medical unit for each of the services were identified, to disaggregate the expense of general services to the endings were constructed weights. Variable costing was performed using the expert consensus technique and microcosting. The average cost was related to productivity per service and to the total number of patients treated for COVID-19, the result was related to the budget used by the unit. Results. The annual cost of COVID-19 care in the respiratory module was 158.597,25 US dollars, in family medicine it was 192.549,36 US dollars, the total cost incurred in 2021 for SARS COV 2 care in a unit of first attention was 351.146,61 US dollars. This amount represents 9,6% of health spending. Conclusion. The cost of COVID-19 care and the percentage of health spending at the first level of care is high (AU)

Lineamientos técnicos para la vacunación contra el SARS-CoV-2 / Technical guidelines for vaccination against SARS-CoV-2

El objetivo general de los presentes lineamientos es establecer las disposiciones técnicas para la realización de las acciones para continuar la vacunación de la población contra el SARS-CoV-2. La priorización vacunal es una estrategia para proteger poblaciones de riesgo, evitando caer en el error de no vacunar a otros grupos cuyo riesgo puede ser bajo, pero que pueden generar enfermedad severa, complicaciones, hospitalizaciones y muerte asociada a COVID-19. En razón de lo anterior se actualizan los esquemas de vacunación frente a COVID-19, a partir de priorización de grupos poblacionales

The general objective of these guidelines is to establish technical provisions for the implementation of actions to continue the vaccination of the population against SARS-CoV-2. Vaccine prioritization is a strategy to protect at-risk populations, avoiding the error of not vaccinating other groups whose risk may be low, but which can lead to severe disease, complications, hospitalizations and death associated with VOCID-19. In view of the foregoing, vaccination schemes against VOCID-19 are updated, based on the prioritization of population groups

Telemedicine for diagnosis or treatment during Covid-19: systematic review

OBJECTIVE: To describe the use of telemedicine by health professionals for diagnosis or treatment of patients during the Covid-19 pandemic. METHOD: This is a systematic literature review of observational studies. Five databases were used. The assessment of the studies methodological quality occurred individually among the revisors and the Joanna Briggs Institute (JBI) tool was used. RESULTS: The reviewers selected 22 articles from 6,180 works. The services provided through telemedicine were consultation/screening, consultation/follow-up or monitoring, test reports, medication prescriptions and case discussions. The technological resources used were platforms using video and telephone (audio and video). The use of telemedicine made it possible to reduce their exposure to Covid-19, reduce social panic and anxiety, quickly medical specialties access and the possibility of access to diagnosis and treatment of patients with chronic and acute diseases. CONCLUSION: Telemedicine can be an important tool in healthcare, keeping patients and healthcare professionals safe during the Covid-19 pandemic.

Mecanismo y diseño de vacunas para el sars-cov-2, revisión narrativa / Mechanism and design of vaccines against sars-cov-2, narrative review / Mecanismo e desenho de vacinas para sars-cov-2, revisão narrativa

La infección por el virus SARS-CoV-2, conocida como COVID-19, ha causado alta morbilidad y mortalidad en el mundo. Después de haber descifrado el código genético del virus y haber desarrollado un gran trabajo investigativo en la creación de vacunas, con diversas estrategias de acción, se ha logrado disminuir la morbi mortalidad. Fue necesario acelerar el proceso de producción de vacunas, lo cual estuvo facilitado por el avanzado conocimiento científico en el campo de la genética y la virología, para brindar a la especie humana una protección eficaz y segura contra la agresiva y progresiva infección. Las vacunas se clasifican de acuerdo con su mecanismo de acción, existen vacunas basadas en vectores virales que no se replican, vacunas recombinantes, otras basadas en virus atenuados y virus inactivos, y (la gran novedad de la ciencia actual) las vacunas basadas en ARN mensajero y ADN. Estas últimas han demostrado una gran eficacia y seguridad en la prevención de la infección por el SARS-CoV-2, también han impactado de manera fuerte, por lo que han reducido la infección y la mortalidad en la población. En consecuencia, cada día que pasa desde que se inició el periodo de vacunación mundial, se evidencia una reducción en la curva de contagio y mortalidad por COVID-19.

The infection produced by the SARS-CoV-2 virus, known as COVID-19, has caused high morbidity and mortality across the world. After having deciphered the virus's genoma and carried out investigative endeavors that led to the creation of a variety of vaccines with different mechanisms of action, it has been possible to decrease the morbidity and mortality associated with the virus. It was necessary to accelerate the vaccine production process, which was facilitated by advanced scientific knowledge within the disciplines of genetics and virology, in order to provide the human species with a safe and effective form of protection against the aggressive and progressive infection. Vaccines are classified differently depending on their action mechanisms: there are some based on non-replicating viral vectors, recombinant vaccines, ones that are based on attenuated or inactivated viruses, and (the greatest novelty of current scientific developments) vaccines based on DNA and messenger RNA. The latter has demonstrated significant efficacy and safety in the prevention of the SARS-CoV-2 infection as observed in preliminary studies, and they have meaningfully impacted the population by reducing the rates of infection and mortality. As a result, decreased levels of spread of and mortality from COVID-19 have been evidenced across the globe following the beginning of the vaccine distribution period.

A infecção pelo vírus SARS-CoV-2, conhecido como COVID-19, tem causado elevada morbidade e mortalidade no mundo. Depois de ter decifrado o código genético do virus e de ter realizado um grande trabalho de investigação na criação de vacinas, com diversas estratégias de ação, a morbilidade e a mortalidade foram reduzidas. Foi necessário acelerar o processo de produção de vacinas, facilitado por conhecimentos científicos avançados no domínio da genética e da virologia, para proporcionar à espécie humana uma proteção eficaz e segura contra a infecção agressiva e progressiva. As vacinas são classificadas de acordo com seu mecanismo de ação, existem vacinas baseadas em vetores virais que não se replicam, vacinas recombinantes, outras baseadas em virus atenuados e vírus inativos, e (a grande novidade da ciência atual) vacinas baseadas em RNA mensageiro e ADN. Estas últimas demonstraram grande eficácia e segurança na prevenção da infecção por SARS-CoV-2, mas também tiveram um forte impacto, razão pela qual reduziram a infecção e a mortalidade na população. Consequentemente, a cada dia que passa desde o início do período global de vacinação, fica evidente uma redução na curva de contágio e mortalidade por COVID-19.

Compatibility Theory of Yiqi Zengmian Prescription as Vaccine Adjuvant / 中国实验方剂学杂志

ObjectiveThis study explored the application of Yiqi Zengmian prescription as a vaccine adjuvant， aiming to provide a new scheme for the prevention and control of corona virus disease 2019（COVID-19） with traditional Chinese medicine （TCM）. By analyzing the compatibility and efficacy， this paper examines the compatibility effect of Yiqi Zengmian prescription， which is modified from the classic tonifying agent Si Junzitang， as a vaccine adjuvant. MethodUsing the Database of Ancient Classical Prescriptions， this paper analyzed the composition of Yiqi Zengmian prescription and probed into the theoretical basis for the compatibility of this prescription from the properties， medicine combination， and efficacy. Furthermore， the compatibility effect of this prescription with vaccines was analyzed. ResultAs a TCM prescription， Yiqi Zengmian prescription focuses on the lung and spleen and enhances the Qi in the two organs. The lung governs Qi movement. The body breathes fresh air through the lungs and exchanges the turbid gas in the lungs， and the gas circulates alternately in the lungs to ensure the normal breathing of the human body. The spleen governing transportation and transformation is the hub for Qi movement， and Qi is the embodiment of metabolic function. By regulating qi movement and enhancing the functions of Qi and blood， Yiqi Zengmian prescription can enhance the immunogenicity of the vaccine， which provides a theoretical basis for enhancing the immune effects of vaccines. ConclusionYiqi Zengmian prescription has the effects of replenishing Qi and invigorating spleen， regulating Qi and drying dampness， and enhancing immunity. The in-depth analysis of the TCM theory of Yiqi Zengmian prescription as a vaccine adjuvant and the results of clinical and laboratory studies suggest that Yiqi Zengmian prescription may enhance the induction of immune response after vaccination and maintain the immune memory. However， the mechanism of Yiqi Zengmian prescription in regulating the complex immune network remains to be elucidated.

Consequences of the Covid-19 pandemic in children and adolescents with attention deficit hyperactivity disorder - a systematic review

Abstract Objective In this systematic review (SR), the authors aimed to identify the possible impact of the social restriction imposed by the Coronavirus Disease-19 (COVID-19) pandemic on children/adolescents with Attention Deficit Hyperactivity Disorder (ADHD). Data sources This SR was registered on PROSPERO CRD42021255569. Eligible articles were selected from PubMed, Embase, and LILACS, according to the following characteristics: ADHD patients < 18 years old, exposed to the COVID-19 pandemic, and the outcomes, medications, relationships, sleep, media use, remote learning, and comorbidities such as depression/sadness, inattention, anxiety, and irritability/aggressiveness. Newcastle-Ottawa Scale (NOS) for cohort, cross-sectional and case-control studies was used to assess methodological quality and the risk of bias. Summary of findings Of the 222 articles identified, 27 were included, with information on 7,235 patients. Most studies (n = 22) were cross-sectional and received a mean NOS 4.63/10 followed by longitudinal (n = 4) with 3.75/8 points and case-control (n = 1), with 3/9 points. The pandemic affected patients' access to treatment, behavior, and sleep. Difficulties in remote learning and increased use of social media were described, as well as significant and positive changes in relationships with family and peers. Conclusion Although the studies were heterogeneous, they indicated that the pandemic-related issues experienced by patients with ADHD were mostly manifested affecting their behavior and sleep patterns.

Pediatric COVID-19: clinical and epidemiological data of 1303 cases in a general hospital in Brazil / COVID-19 pediátrico: dados clínicos e epidemiológicos de 1303 casos em um hospital geral no Brasil

ABSTRACT Objective: This study aimed to describe the clinical characteristics of the pediatric population with COVID-19 in an Emergency Department (ED) of a Brazilian general hospital. Methods: Epidemiological and clinical data of patients younger than 20 years old were collected from patients' medical records from February 2020 to July 2021. Most of the epidemiological data described pertains to hospitalized patients. We also reviewed coinfections, treatment, and outcomes and compared the first and second waves of COVID-19. Results: We identified a total of 1303 episodes of SARS-CoV-2 infection. The median time from symptom onset to diagnosis was three days. Symptoms were present in 92.3% of the patients. The most common symptoms were fever (45.2%), nasal congestion/discharge (44.2%), and cough (39.4%). Chest radiography and tomography were performed in 7.7 and 3.3% of cases, with abnormal findings in 29.7 and 53.4%, respectively. Hospital admissions occurred in 3.5% of patients, mainly in the presence of comorbidities, in children under five years old and in those who presented to the ED during the first wave of COVID-19. Coinfection with a viral agent was identified in 20% of the 71 cases tested in this study, and a positive rapid test for Streptococcus pyogenes was found in 8% of the 174 cases tested, with no impact of these coinfections on hospitalization. Conclusions: We found that COVID-19 was a mild disease in most children in our study population, with most hospitalizations and readmissions occurring during the first wave of COVID-19.

RESUMO Objetivo: Este estudo teve como objetivo descrever as características clínicas da população pediátrica com COVID-19 no setor de emergência de um hospital geral brasileiro. Métodos: Os dados epidemiológicos e clínicos de pacientes idade inferior a 20 anos foram coletados dos prontuários dos pacientes de fevereiro de 2020 a julho de 2021. A maior parte dos dados epidemiológicos descritos refere-se a pacientes hospitalizados. Também foram revisados as coinfecções, o tratamento e os desfechos de internação e comparadas a primeira e a segunda ondas de COVID-19. Resultados: Foi identificado o total de 1.303 episódios de infecção por SARS-CoV-2. A mediana de tempo desde o início dos sintomas até o diagnóstico foi de três dias. Os sintomas estiveram presentes em 92,3% dos pacientes. Os sintomas mais comuns foram febre (45,2%), congestão/secreção nasal (44,2%) e tosse (39,4%). Radiografia e tomografia de tórax foram realizadas em 7,7 e 3,3% dos casos, com achados anormais em 29,7 e 53,4%, respectivamente. As internações hospitalares ocorreram em 3,5% dos pacientes, principalmente na presença de comorbidades, em crianças menores de cinco anos e naqueles que se apresentaram no pronto-socorro durante a primeira onda de COVID-19. Foi identificada coinfecção viral em 20% dos 71 casos testados e teste rápido positivo para Streptococcus pyogenes em 8% dos 174 casos testados, não havendo impacto dessas coinfecções quanto à internação hospitalar. Conclusões: Observamos que a COVID-19 foi uma doença leve na maioria das crianças de nossa população, com a maior parte das hospitalizações e readmissões ocorrendo durante a primeira onda de COVID-19.

Gestações e nascimentos em tempos de COVID-19 / Embarazos y nacimientos en tiempos de COVID-19 / Pregnancies and births in times of COVID-19

Resumo Objetivo Identificar o perfil de nascimentos das gestações de mulheres com acesso à internet que cursaram com a infecção pelo SARS-CoV-2 e seus desfechos. Métodos Estudo transversal integrado a uma coorte prospectiva, com coleta entre agosto de 2021 e fevereiro de 2022, baseado nas respostas de 304 mulheres que tiveram gestações e/ou partos durante o período pandêmico. Resultados Do total, 25,7% das entrevistadas tiveram COVID-19, com predomínio de diagnósticos no terceiro trimestre. Queixas de anosmia, fadiga e cefaleia prevaleceram como relacionados à infecção. As variáveis: utilizar o Sistema Único de Saúde para atendimento (p = 0,084); diabetes gestacional (p = 0,141); baixo peso de nascimento (p = 0,117); necessidade de internação em unidade neonatal (p = 0,120) foram inseridas no modelo de regressão por terem valores de p inferiores a 0,20. A variável referente ao tipo de parto (p=1,000) foi inserida no modelo por se tratar de uma variável de interesse e com descrição de relevância na literatura. A prematuridade foi a única variável que apresentou associação estatística com a infecção pelo SARS-CoV-2 durante a gestação (p = 0,008) na análise bivariada, explicando o desfecho da infecção na gestação (<0,001), comprovado no modelo de Regressão Robusta de Poisson. Conclusão Observou-se alta prevalência de COVID-19 na amostra, com variação de sintomas e predomínio de partos operatórios. No entanto, a infecção pelo SARS-CoV-2 explicou apenas a maior ocorrência de nascimentos prematuros.

Resumen Objetivo Identificar el perfil de nacimientos de los embarazos de mujeres con acceso a internet que lo cursaron con la infección por SARS-CoV-2 y sus desenlaces. Métodos Estudio transversal integrado a una cohorte prospectiva, con recopilación entre agosto de 2021 y febrero de 2022, basado en las respuestas de 304 mujeres que tuvieron embarazos o partos durante el período pandémico. Resultados Del total, el 25,7 % de las entrevistadas tuvieron COVID-19, con predominio de diagnósticos en el tercer trimestre. Prevalecieron quejas de anosmia, fatiga y cefalea como relacionadas a la infección. Las variables utilización del Sistema Único de Salud para atención (p = 0,084), diabetes gestacional (p = 0,141), bajo peso de nacimiento (p = 0,117), necesidad de internación en unidad neonatal (p = 0,120) se introdujeron en el modelo de regresión por tener valores de p inferiores a 0,20. Se introdujo la variable relacionada al tipo de parto (p = 1,000) en el modelo por tratarse de una variable de interés y con descripción de relevancia en la literatura. La prematuridad fue la única variable que presentó asociación estadística con la infección por SARS-CoV-2 durante el embarazo (p = 0,008) en el análisis bivariado, lo que explica el desenlace de la infección en el embarazo (>0,001), comprobado en el modelo de regresión robusta de Poisson. Conclusión Se observó alta prevalencia de COVID-19 en la muestra, con variación de síntomas y predominio de partos operatorios. Sin embargo, la infección por SARS-CoV-2 explicó solamente la mayor incidencia de nacimientos prematuros.

Abstract Objective Identify the profile of births of pregnancies of women with internet access who were infected with SARS-CoV-2 and their outcomes. Methods Cross-sectional study integrated into a prospective cohort, with collection between August 2021 and February 2022, based on the responses of 304 women who had pregnancies and/or deliveries during the pandemic period. Results Of the total, 25.7% of the interviewees had COVID-19, with a predominance of diagnoses in the third quarter. Complaints of anosmia, fatigue and headache prevailed as related to the infection. The variables using the Unified Health System for care (p = 0.084); gestational diabetes (p = 0.141); low birth weight (p = 0.117); need for admission to a neonatal unit (p = 0.120) were included in the regression model because they had p values lower than 0.20. The variable referring to the type of delivery (p=1.000) was inserted in the model because it is a variable of interest and with a description of relevance in the literature. Prematurity was the only variable that was statistically associated with SARS-CoV-2 infection during pregnancy (p = 0.008) in the bivariate analysis, explaining the outcome of infection during pregnancy (<0.001), confirmed in the Poisson Robust Regression model. Conclusion There was a high prevalence of COVID-19 in the sample, with varying symptoms and a predominance of operative deliveries. However, SARS-CoV-2 infection only explained the higher occurrence of premature births.

Comparative analysis of asymptomatic infection prevalence in Beta, Delta, and Omicron surges of COVID-19

Abstract Background The COVID-19 pandemic, caused by the SARS-CoV-2 virus, has had a devastating impact on the global population, with an estimated 650 million people infected and more than 6.6 million lives lost. Asymptomatic individuals have been shown to play a significant role in the transmission of the virus. Therefore, this study aims to investigate and compare the prevalence of asymptomatic individuals across three waves associated with the Beta, Delta, and Omicron variants of the virus. Methods This retrospective study was conducted between December 2020 and March 2022. The study population consisted of passengers on international flights who were referred to the Gerash Clinical and Molecular Diagnosis Laboratory. Real-time PCR was employed for the diagnosis of SARS-CoV-2. Results Out of a total of 8592 foreign travelers referred to our laboratory, 139 (1.16 %) tested positive for SARS-CoV-2 infection and were asymptomatic. During the Beta surge, 35 (1.49 %) out of 2335 passengers tested positive for SARS-CoV-2. In the Delta surge, 31 (0.6 %) out of 5127 passengers tested positive. However, during the Omicron surge, a significantly higher number of passengers, specifically 73 (6.46 %) out of 1130, had a positive result for the SARS-CoV-2 test. Conclusion Considering the significant role of asymptomatic transmission in the spread of COVID-19, it is imperative to reconsider health policies when dealing with future surges of the Omicron subvariants. Additionally, we strongly recommend that the World Health Organization prioritize the development and distribution of second-generation vaccines that target not only disease but also infection prevention.

Comparative analysis of SARS-CoV-2 variants Alpha (B.1.1.7), Gamma (P.1), Zeta (P.2) and Delta (B.1.617.2) in Vero-E6 cells: ultrastructural characterization of cytopathology and replication kinetics

Abstract This study compares the effects of virus-cell interactions among SARS-CoV-2 variants of concern (VOCs) isolated in Brazil in 2021, hypothesizing a correlation between cellular alterations and mortality and between viral load and transmissibility. For this purpose, reference isolates of Alpha, Gamma, Zeta, and Delta variants were inoculated into monolayers of Vero-E6 cells. Viral RNA was quantified in cell supernatants by RT‒PCR, and infected cells were analyzed by Transmission Electron Microscopy (TEM) for qualitative and quantitative evaluation of cellular changes 24, 48, and 72 hours postinfection (hpi). Ultrastructural analyses showed that all variants of SARS-CoV-2 altered the structure and function of mitochondria, nucleus, and rough endoplasmic reticulum of cells. Monolayers infected with the Delta variant showed the highest number of modified cells and the greatest statistically significant differences compared to those of other variants. Viral particles were observed in the cytosol and the cell membrane in 100 % of the cells at 48 hpi. Alpha showed the highest mean particle diameter (79 nm), and Gamma and Delta were the smallest (75 nm). Alpha and Gamma had the highest particle frequency per field at 48 hpi, while the same was observed for Zeta and Delta at 72 hpi and 24 hpi, respectively. The cycle threshold of viral RNA varied among the target protein, VOC, and time of infection. The findings presented here demonstrate that all four VOCs evaluated caused ultrastructural changes in Vero-E6 cells, which were more prominent when infection occured with the Delta variant.

The impact of COVID-19 on microbiological profile and antibiotic consumption in ICU: a retrospective study in an infectious disease hospital in Brazil

Abstract Background The COVID-19 pandemic has triggered crises in the public health sector that have complex and multifaceted interrelationships with antimicrobial resistance. It is important to evaluate the impact of COVID-19 on microbiological profile, antibiotic and alcohol gel consumption in Intensive Care Units (ICU). Methods This is a retrospective study undertaken in an infectious disease hospital located in Bahia/Brazil during three periods: from March 2019 to February 2020; from March 2020 to February 2021; and from March 2021 to February 2022. It was evaluated the incidence density of Candida spp and of multidrug-resistant Enterococcus faecium, Staphylococcus aureus, Klebsiella pneumoniae, Acinetobacter baumannii, Pseudomonas aeruginosa, and Enterobacter species (ESKAPE group) in blood, urine and tracheal secretion isolated 48 h after the patient's admission to the ICU, as well as the use of alcohol gel (in milliliters) and consumption of antibiotics in Defined Daily Dose (DDD) per 1,000 ICU patient-days in the previous year and in the first two years of COVID-19 pandemic. Results There was an increase in Candida spp. (5.81, p < 0.001, IRR = 10.47, 95 % CI 2.57‒42.62) and in carbapenem-resistant A. baumannii in clinical cultures (4.71, p < 0.001, IRR = 8.46, 95 % CI 2.07‒34.60), the latter mainly in tracheal secretions (3.18, p =0.02, IRR = 11.47, 95 % CI 1.58‒83.39). A rise in the consumption of ceftriaxone and piperacillin-tazobactam, along with an increase in the utilization of alcohol gel were observed. Conclusion The shifting microbiological profile can be attributed to both the unique characteristics of patients with COVID-19 and the adjustments made to healthcare facilities' structural and work routines. Understanding these changes is essential in addressing the accelerated impact of antimicrobial resistance during the pandemic. Therefore, conducting thorough reviews of institutional practices and routines becomes critical in mitigating the consequences of antimicrobial resistance and its implications for patient care.

Self-perception of mental health, COVID-19 and associated sociodemographic-contextual factors in Latin America / Autopercepción de la salud mental, COVID-19 y factores sociodemográficos y contextuales asociados en Latinoamérica / Autopercepção da saúde mental, COVID-19 e fatores sociodemográficos e contextuais associados na América Latina

Abstract This study aimed to estimate the prevalence of alterations in self-perceived mental health during the COVID-19 pandemic and their associated factors in four Latin American countries. This is a cross-sectional study based on data collected from adults in 2021 through the Collaborative Response COVID-19 Survey by the MacDonnell Academy at Washington University in St. Louis (United States). The sample was composed of 8,125 individuals from Brazil, Colombia, Mexico, and Chile. A generalized linear model for a binary outcome variable with a logistic link and fixed country effects was used. There were 2,336 (28.75%) individuals who considered having suffered alterations in self-perceived mental health. Unemployed individuals (OR = 1.40; 95%CI: 1.24-1.58), those with bad/regular quality of life (OR = 5.03; 95%CI: 4.01-6.31), and those with high socioeconomic status (OR = 1.66; 95%CI: 1.41-1.96) had a higher risk of self-perceived mental health alterations than those with full-time employment, excellent quality, and low socioeconomic status. According to the fixed-effects model, Brazilians living in the country during the pandemic, who disagreed with their government's decisions (OR = 2.05; 95%CI: 1.74-2.42) and lacked trust in their government (OR = 2.10; 95%CI: 1.74-2.42) had a higher risk of having self-perceived mental health alterations. Nearly 30% of respondents indicated that the COVID-19 pandemic altered their self-perceived mental health. This outcome was associated with political, sociodemographic, and health risk factors. These findings should help policymakers develop post-pandemic community interventions.

Resumen Este estudio tuvo como objetivo estimar la prevalencia de alteraciones en la autopercepción de la salud mental durante la pandemia de COVID-19 y sus factores asociados en cuatro países de América Latina. Este es un estudio transversal de datos recopilados de adultos en el 2021 por medio de la investigación Respuesta Colaborativa a COVID-19 de la Academia McDonnell en la Universidad Washington en St. Louis (Estados Unidos). La muestra estuvo compuesta por 8.125 personas de Brasil, Colombia, México y Chile. El estudio utilizó un modelo lineal generalizado para una variable de desenlace binario con un enlace logístico y efectos fijos por país. En total, 2.336 (28,75%) personas consideraron que habían sufrido alteraciones en la autopercepción de la salud mental. Los desempleados (OR = 1,40; IC95%: 1,24-1,58), aquellos con calidad de vida mala/regular (OR = 5,03; IC95%: 4,01-6,31) y aquellos con alto nivel socioeconómico (OR = 1,66; IC95%: 1,41-1,96) presentaron mayor riesgo de alteraciones en la autopercepción de la salud mental que aquellos con empleo a tiempo completo, excelente calidad y bajo nivel socioeconómico. Según el modelo de efectos fijos, los brasileños que vivían en el país durante la pandemia y que no estuvieron de acuerdo con las decisiones del gobierno (OR = 2,05; IC95%: 1,74-2,42) y no confiaban en su gobierno (OR = 2,10; IC95%: 1,74-2,42) presentaron mayor riesgo de alteraciones en la autopercepción de la salud mental. Casi el 30% de los encuestados indicaron que la pandemia de COVID-19 alteró su autopercepción de la salud mental. Este desenlace se asoció con factores políticos, sociodemográficos y de riesgo a la salud. Estos hallazgos deben ayudar a los formuladores de políticas a desarrollar intervenciones comunitarias pospandémicas.

Resumo Este estudo teve como objetivo estimar a prevalência de alterações na autopercepção de saúde mental durante a pandemia de COVID-19 e seus fatores associados em quatro países da América Latina. Este é um estudo transversal de dados coletados de adultos em 2021 por meio da pesquisa Resposta Colaborativa à COVID-19 da Academia McDonnell na Universidade Washington em St. Louis (Estados Unidos). A amostra foi composta por 8.125 pessoas do Brasil, Colômbia, México e Chile. O estudo utilizou um modelo linear generalizado para uma variável de desfecho binário com uma conexão logística e efeitos fixos do país. No total, 2.336 (28,75%) pessoas consideraram ter sofrido alterações na autopercepção de saúde mental. Os desempregados (OR = 1,40; IC95%: 1,24-1,58), aqueles com qualidade de vida ruim/regular (OR = 5,03; IC95%: 4,01-6,31) e aqueles com alto nível socioeconômico (OR = 1,66; IC95%: 1,41-1,96) apresentaram maior risco de alterações na autopercepção de saúde mental do que aqueles com emprego em tempo integral, excelente qualidade e baixo nível socioeconômico. De acordo com o modelo de efeitos fixos, os brasileiros que viviam no país durante a pandemia, que discordavam das decisões do governo (OR = 2,05; IC95%: 1,74-2,42) e não confiavam em seu governo (OR = 2,10; IC95%: 1,74-2,42) apresentaram maior risco de alterações na autopercepção de saúde mental. Quase 30% dos entrevistados indicaram que a pandemia da COVID-19 alterou sua autopercepção de saúde mental. Esse desfecho estava associado a fatores políticos, sociodemográficos e de risco à saúde. Estes achados devem ajudar os formuladores de políticas a desenvolver intervenções comunitárias pós-pandemia.

COVID-19 in hematopoietic stem cell transplant recipients during three years of the pandemic: a multicenter study in Brazil

ABSTRACT Hematopoietic stem cell transplant (HSCT) recipients are at -increased risk for severe COVID-19. The aim of this study was to evaluate the burden of COVID-19 in a cohort of HSCT recipients. This retrospective study evaluated a cohort of adult hospitalized HSCT recipients diagnosed with COVID-19 in two large hospitals in São Paulo, Brazil post-HSCT, from January 2020 to June 2022. The primary outcome was all-cause mortality. Of 49 cases, 63.2% were male with a median age of 47 years. Allogeneic-HSCT (51.2%) and autologous-HSCT (48.9%) patients were included. The median time from HSCT to COVID-19 diagnosis was 398 days (IQR: 1211-134), with 22 (44.8%) cases occurring within 12 months of transplantation. Most cases occurred during the first year of the pandemic, in non-vaccinated patients (n=35; 71.4%). Most patients developed severe (24.4%) or critical (40.8%) disease; 67.3% received some medication for COVID-19, primarily corticosteroids (53.0%). The probable invasive aspergillosis prevalence was 10.2%. All-cause mortality was 40.8%, 51.4% in non-vaccinated patients and 14.2% in patients who received at least one dose of the vaccine. In the multiple regression analyses, the variables mechanical ventilation (OR: 101.01; 95% CI: 8.205 - 1,242.93; p = 0.003) and chest CT involvement at diagnosis ≥50% (OR: 26.61; 95% CI: 1.06 - 664.26; p = 0.04) remained associated with all-cause mortality. Thus, HSCT recipients with COVID-19 experienced high mortality, highlighting the need for full vaccination and infection prevention measures.

Índice de massa corporal e desfechos clínicos: um estudo retrospectivo durante a pandemia de Covid-19 / Body mass index and clinical outcomes: a retrospective study in Covid-19 / Índice de masa corporal y resultado clínico: un estudio retrospectivo durante la pandemia de Covid-19

A COVID-19 é uma doença respiratória aguda provocada pela infecção do vírus SARS-CoV-2, que pode causar uma grave insuficiência respiratória hipoxêmica, complicações e mortes, principalmente na população com condições crônicas de saúde. Os mecanismos pelos quais a obesidade pode aumentar a gravidade da COVID-19 incluem mecanismos físicos, inflamação crônica e uma função imunológica prejudicada. Além disso, o índice de massa corporal elevado é um fator de risco para várias condições médicas que têm sido sugeridas para aumentar o risco de gravidade da COVID-19. Objetivo: analisar a associação entre o índice de massa corporal e desfechos clínicos dos casos confirmados de COVID-19. Metodologia: Estudo transversal, com coleta de dados de prontuários, conduzido de março de 2020 a dezembro 2021. Foram analisados os registros de prontuários, exames bioquímicos e de imagem de pacientes internados com COVID-19 em três hospitais da cidade de Francisco Beltrão (PR). As variáveis analisadas foram o diagnóstico nutricional, idade, sexo, necessidade de internação em UTI, comorbidades, dias de hospitalização, complicações, exames laboratoriais e desfecho. Os critérios para inclusão no estudo foram, pacientes hospitalizados com diagnóstico para COVID-19, com presença de diagnóstico nutricional relatado. Resultados: No ano de 2020 foram analisados 292 prontuários e no ano de 2021 foram 860 prontuários. Destes, somente 413 possuíam diagnóstico nutricional, sendo assim incluídos no presente estudo. Foram classificados como peso normal 78 (18,9%), com sobrepeso 153 (37%)e como obeso 182 (44,1%) participantes. A maior prevalência de obesidade foi encontrada no sexo feminino (52,5%), portadores de diabetes (27,6%), pacientes com estado geral comprometido (67,9%), que apresentaram complicações pulmonares (54,5%) e arritmias (23%). A média de idade encontrada em pacientes com obesidade foi mais jovem (55,54) em comparação com os classificados com sobrepeso (59,08) e normal (62,51). Observou-se que quanto maior o IMC menor foram os valores encontrados para idade (rho = -0,190), leucócitos (rho = -0,109), ureia (rho = -0,145) e D-dímero (rho = -0,155). Conclusão: Este estudo fornece evidências de que o sobrepeso e/ou obesidade então associadas a um pior quadro clínico durante a internação dos pacientes com COVID-19. Em relação a frequência de óbito, não houve diferença estatística em relação ao diagnóstico nutricional.

COVID-19 is an acute respiratory disease caused by SARS-CoV-2 virus infection, which can cause severe hypoxemic respiratory failure, complications, and deaths, especially in the population with chronic health conditions. The mechanisms by which obesity may increase the severity of COVID-19 include physical mechanisms, chronic inflammation, and impaired immune function. In addition, high body mass index is a risk factor for several medical conditions that have been suggested to increase the risk of COVID-19 severity. Objective: to analyze the association between body mass index and clinical outcomes of confirmed cases of COVID-19. Methodology: Cross-sectional study, with data collection from medical records, conducted from March 2020 to December 2021. The records of medical records, biochemical and imaging tests of patients hospitalized with COVID-19 in three hospitals in the city of Francisco Beltrão (PR) were analyzed. The variables analyzed were nutritional diagnosis, age, gender, need for ICU admission, comorbidities, days of hospitalization, complications, laboratory tests and outcome. The inclusion criteria for the study were, hospitalized patients with diagnosis for COVID-19, with presence of nutritional diagnosis reported. Results: In the year 2020, 292 medical records were analyzed and in the year 2021 there were 860 medical records. Of these, only 413 had nutritional diagnosis, thus being included in this study. Were classified as normal weight 78 (18.9%), overweight 153 (37%), and obese 182 (44.1%) participants. The highest prevalence of obesity was found in females (52.5%), patients with diabetes (27.6%), patients with impaired general condition (67.9%), who presented pulmonary complications (54.5%) and arrhythmias (23%). The mean age found in obese patients was younger (55.54) compared to those classified as overweight (59.08) and normal (62.51). It was observed that the higher the BMI the lower were the values found for age (rho = -0.190), leukocytes (rho = -0.109), urea (rho = -0.145) and D-dimer (rho = -0.155). Conclusion: This study provides evidence that overweight and/or obesity then associated with a worse clinical picture during hospitalization of patients with COVID-19. Regarding the frequency of death, there was no statistical difference in relation to nutritional diagnosis.

COVID-19 es una enfermedad respiratoria aguda causada por la infección por el virus SARS-CoV-2, que puede provocar insuficiencia respiratoria hipoxémica grave, complicaciones y muertes, especialmente en poblaciones con enfermedades crónicas. Los mecanismos por los cuales la obesidad puede aumentar la gravedad de la COVID-19 incluyen mecanismos físicos, inflamación crónica y función inmune deteriorada. Además, un índice de masa corporal alto es un factor de riesgo para varias afecciones médicas que, según se ha sugerido, aumentan el riesgo de gravedad del COVID-19. Objetivo: analizar la asociación entre el índice de masa corporal y los resultados clínicos de casos confirmados de COVID-19. Metodología: Estudio transversal, con recolección de datos de historias clínicas, realizado de marzo de 2020 a diciembre de 2021. Se analizaron historias clínicas, exámenes bioquímicos y de imagen de pacientes hospitalizados con COVID-19 en tres hospitales de la ciudad de Francisco Beltrão (PR). Las variables analizadas fueron diagnóstico nutricional, edad, sexo, necesidad de ingreso a UCI, comorbilidades, días de internación, complicaciones, exámenes de laboratorio y evolución. Los criterios de inclusión en el estudio fueron pacientes hospitalizados con diagnóstico de COVID-19, con presencia de diagnóstico nutricional informado. Resultados: En 2020 se analizaron 292 historias clínicas y en 2021 se analizaron 860 historias clínicas. De ellos, sólo 413 tenían diagnóstico nutricional, por lo que fueron incluidos en el presente estudio. 78 (18,9%) participantes fueron clasificados como normopeso, 153 (37%) como sobrepeso y 182 (44,1%) como obesidad. La mayor prevalencia de obesidad se encontró en el sexo femenino (52,5%), pacientes con diabetes (27,6%), pacientes con estado general comprometido (67,9%), quienes presentaron complicaciones pulmonares (54,5%) y arritmias (23%). La edad promedio encontrada en los pacientes con obesidad fue menor (55,54) en comparación con los clasificados como con sobrepeso (59,08) y normales (62,51). Se observó que a mayor IMC, menores son los valores encontrados para edad (rho = -0,190), leucocitos (rho = -0,109), urea (rho = -0,145) y dímero D (rho = -0,155). Conclusión: Este estudio proporciona evidencia de que el sobrepeso y/u obesidad se asocia con una peor condición clínica durante la hospitalización de pacientes con COVID-19. En cuanto a la frecuencia de muerte, no hubo diferencia estadística en relación al diagnóstico nutricional.

Inefficacious drugs against covid-19: analysis of sales, tweets, and search engines / Medicamentos ineficazes contra covid-19: análise de vendas, tweets e mecanismos de busca

ABSTRACT OBJECTIVE Assess the correlation between the sales of two drugs with no proven efficacy against covid-19, ivermectin and chloroquine, and other relevant variables, such as Google® searches, number of tweets related to these drugs, number of cases and deaths resulting from covid-19. METHODS The methodology adopted in this study has four stages: data collection, data processing, exploratory data analysis, and correlation analysis. Spearman's method was used to obtain cross-correlations between each pair of variables. RESULTS The results show similar behaviors between variables. Peaks occurred in the same or near periods. The exploratory data analysis showed shortage of chloroquine in the period corresponding to the beginning of advertising for the application of these drugs against covid-19. Both drugs showed a high and statistically significant correlation with the other variables. Also, some of them showed a higher correlation with drug sales when we employed a one-month lag. In the case of chloroquine, this was observed for the number of deaths. In the case of ivermectin, this was observed for the number of tweets, cases, and deaths. CONCLUSIONS The results contribute to decision making in crisis management by governments, industries, and stores. In times of crisis, as observed during the covid-19 pandemic, some variables can help sales forecasting, especially Google® and tweets, which provide a real-time analysis of the situation. Monitoring social media platforms and search engines would allow the determination of drug use by the population and better prediction of potential peaks in the demand for these drugs.

RESUMO OBJETIVO Investigar a correlação entre as vendas de dois medicamentos sem eficácia comprovada no tratamento de covid-19, ivermectina e cloroquina, e outras variáveis relevantes: pesquisas no Google®, número de tweets relacionados aos medicamentos, casos e óbitos decorrentes da covid-19. MÉTODOS A metodologia adotada neste estudo se divide em quatro partes: coleta de dados; processamento dos dados; análise exploratória; e análise de correlação. Foi utilizado o método de Spearman para obter as correlações cruzadas entre cada par de variáveis. RESULTADOS Os resultados mostram similaridade entre os comportamentos das variáveis. Os picos ocorreram em períodos iguais ou próximos. A análise exploratória dos dados apontou que houve falta de cloroquina no período correspondente ao início das divulgações sobre a aplicação desses medicamentos para o tratamento da covid-19. Ambos os medicamentos apresentaram correlação alta e estatisticamente significativa com as demais variáveis analisadas. Também foi observado que algumas delas apresentaram maior correlação com as vendas de medicamentos quando assumiram defasagem temporal de um mês. No caso da cloroquina, isso ocorreu com a variável óbitos. No caso da ivermectina, ocorreu com as variáveis número de tweets, casos e óbitos. CONCLUSÕES Os resultados observados contribuem para a tomada de decisão durante a gestão de crises por parte de governo, indústrias e comércios. Em momentos de crises, como observado durante a pandemia, as variáveis mostraram que são capazes de auxiliar na previsão de vendas, em especial o Google® e os tweets, que proporcionam uma análise em tempo real da situação. Acompanhar as redes sociais e mecanismos de busca permitiria detecção de uso pela população e melhor previsão de potenciais picos de demanda desses medicamentos.

Avanços no entendimento da patogenia da covid-19: uma revisão / Advances in understanding covid-19 pathogenesis: a review / Avances en la comprensión de la patogenia de la covid-19: una revisión

Introdução: O SARS-CoV-2, causador da pandemia por Doença por Coronavirus 2019 (COVID-19) gerou desafios à saúde pública, principalmente pelo conhecimento escasso de sua patogênese, e de estratégias terapêuticas e preventivas eficazes. Diversas lacunas de conhecimento sobre a doença envolvem a contribuição de fatores de risco, as doenças concomitantes, os fatores genéticos e imunogenéticos, no direcionamento da resposta imune, bem como a hiperinflamação, a imunidade antiviral e os alelos dos antígenos leucocitários humanos (HLAs) dos pacientes, que estão relacionados ao desfecho da doença. Objetivo: Esta revisão integrativa objetivou aprofundar os conhecimentos sobre os mecanismos de imunidade relacionada aos fatores de risco, da hiperinflamação e da tempestade de citocinas decorrente da infecção por SARS-CoV-2, bem como os avanços de associação dos HLAs nos agravos da doença. Metodologia: A revisão integrativa foi realizada utilizando os descritores nas bases de dados PubMed, SCIELO, CINAHL, SCOPUS, Web of Science, MedNar, Portal periódicos CAPES e Open Journal System, sem limites de janela cronológica. Resultados: Os efeitos da pandemia e os esforços na busca do conhecimento sobre a patogênese da COVID-19 resultaram em avanço no combate da doença. Conseguiu-se relacionar fatores de risco como obesidade, hipertensão, diabetes, doenças renais crônicas, idade, gênero, e outras condições predisponentes ao agravo da doença. Sob o aspecto da patogênese, também houveram progressos no entendimento dos mecanismos celulares e humorais em resposta à doença, bem como conseguiu vincular a resposta da hiperinflamação e o perfil dos HLAs dos pacientes à evolução da doença ao óbito ou à convalescência. Conclusão: Os esforços científicos conjuntos e os avanços na compreensão dos mecanismos da doença conseguiram estabelecer estratégias de combate a COVID-19, resultando no fim da pandemia, porém ainda há avanços que devem ser alcançados para o combate das sequelas dos pacientes convalescentes e para minimização da COVID longa e seus prejuízos.

Introduction: SARS-CoV-2, which causes the Coronavirus Disease 2019 (COVID-19) pandemic, has generated challenges to public health, mainly due to the limited knowledge of its pathogenesis and effective therapeutic and preventive strategies. Several gaps in knowledge about the disease involve the contribution of risk factors, concomitant diseases, genetic and immunogenetic factors, in directing the immune response, as well as hyperinflammation, antiviral immunity and human leukocyte antigen (HLAs) alleles of patients, which are related to the outcome of the disease. Aim: This integrative review aimed to deepen knowledge about the mechanisms of immunity related to risk factors, hyperinflammation and the cytokine storm resulting from SARS-CoV-2 infection, as well as advances in the association of HLAs in diseases. Methodology: The integrative review was carried out using the descriptors in the databases PubMed, SCIELO, CINAHL, SCOPUS, Web of Science, MedNar, CAPES periodical portal and Open Journal System, without chronological window limits. Results: The effects of the pandemic and efforts to seek knowledge about the pathogenesis of COVID-19 resulted in progress in combating the disease. It was possible to relate risk factors such as obesity, hypertension, diabetes, chronic kidney disease, age, gender, and other conditions predisposing to the worsening of the disease. From the aspect of pathogenesis, progress has also been made in understanding the cellular and humoral mechanisms in response to the disease, as well as linking the hyperinflammation response and the patients' HLA profile to the progression of the disease to death or convalescence. Conclusion: Joint scientific efforts and advances in understanding the mechanisms of the disease managed to establish strategies to combat COVID-19, resulting in the end of the pandemic, but there are still advances that must be achieved to combat the sequelae of convalescent patients and to minimize of long COVID and its losses.

Introducción: El SARS-CoV-2, causante de la pandemia de la Enfermedad del Coronavirus 2019 (COVID-19), ha generado desafíos a la salud pública, principalmente por el limitado conocimiento de su patogénesis y estrategias terapéuticas y preventivas efectivas. Varios vacíos en el conocimiento sobre la enfermedad involucran la contribución de factores de riesgo, enfermedades concomitantes, factores genéticos e inmunogenéticos, en la dirección de la respuesta inmune, así como la hiperinflamación, la inmunidad antiviral y los alelos del antígeno leucocitario humano (HLA) de los pacientes, que están relacionados con el resultado de la enfermedad. Objetivo: Esta revisión integradora tuvo como objetivo profundizar el conocimiento sobre los mecanismos de inmunidad relacionados con los factores de riesgo, la hiperinflamación y la tormenta de citocinas resultante de la infección por SARS-CoV-2, así como los avances en la asociación de los HLA en las complicaciones de la enfermedad. Metodología: La revisión integradora se realizó utilizando los descriptores de las bases de datos PubMed, SCIELO, CINAHL, SCOPUS, Web of Science, MedNar, portal periódico CAPES y Open Journal System, sin límites de ventana cronológica. Resultados: Los efectos de la pandemia y los esfuerzos por buscar conocimiento sobre la patogénesis de la COVID-19 resultaron en avances en el combate de la enfermedad. Se logró relacionar factores de riesgo como obesidad, hipertensión, diabetes, enfermedad renal crónica, edad, sexo y otras condiciones que predisponen al agravamiento de la enfermedad. Desde el punto de vista de la patogénesis, también se ha avanzado en la comprensión de los mecanismos celulares y humorales de respuesta a la enfermedad, así como en la vinculación de la respuesta de hiperinflamación y el perfil HLA de los pacientes con la progresión de la enfermedad hasta la muerte o la convalecencia. Conclusión: Los esfuerzos científicos conjuntos y los avances en la comprensión de los mecanismos de la enfermedad lograron establecer estrategias para combatir el COVID-19, teniendo como resultado el fin de la pandemia, pero aún quedan avances que se deben lograr para combatir las secuelas de los pacientes convalecientes y para Minimizar el COVID prolongado y sus pérdidas.