Identificação, caracterização e determinação de padrões da resposta imune de epítopos imunogênicos de Plasmodium vivax / Identification, characterization and determination of immune response patterns of immunogenic epitopes of Plasmodium vivax

O Plasmodium vivax representa um grande desafio no controle da malária devido a sua vasta distribuição ao redor do globo, grande frequência de infecções sub microscópicas e habilidade de induzir recaídas em consequência das formas evolutivas que podem ficar latentes no fígado por longos períodos (hipnozoítos). O recente aumento de cepas de P. vivax resistentes aos fármacos disponíveis, a evolução de formas mais virulentas do parasito e a produção precoce de gametócitos, característica desta espécie, contribuem para classificar a malária vivax como um problema de saúde pública que merece atenção. Ainda que reconhecido por suas características biológicas peculiares e pelo agravamento recente de sua virulência, poucos investimentos têm sido feitos no desenvolvimento de ferramentas de controle para vivax. Portanto, o presente estudo teve como objetivo identificar e caracterizar novos alvos potenciais utilizando amostras de diferentes áreas endêmicas ao redor do mundo (Brasil, Mali, Camboja e Estados Unidos da América). Para tanto, investigamos e caracterizamos uma proteína recém descoberta na urina de pacientes naturalmente infectados (PvVir14); e descrevemos o potencial imunogênico de epítopos de células B de uma das proteínas mais bem caracterizadas de P. vivax, a PvAMA-1. Anti-IgG circulantes contra PvVir14 apareceram em 61% e 34.5% dos indivíduos do Brasil e Camboja, respectivamente, enquanto que indivíduos de Mali (infectados com falciparum e não expostos a vivax), tiveram 0% de reconhecimento. Ainda, os níveis de anti-PvVir14 correlacionaram-se com aqueles contra outros antígenos de vivax já bem caracterizados, como a PvCSP e a PvDBP, que foram reconhecidos por 7.6% e 42% dos indivíduos respectivamente. Com relação ao perfil celular, indivíduos sororreativos para PvVir14 apresentaram níveis significativamente maiores de células B atípicas circulantes (CD 21- CD 27-), sugerindo que tal tipo celular possa estar ligado à resposta anti-PvVir14. Entre as células T, os níveis de CD4+ e CD8+ diferiram entre indivíduos com e sem anticorpos contra PvVir14 (menor e maior expressão, respectivamente), enquanto que os níveis de células NKT foram mais expressivos em indivíduos sem anti-PvVir14. Se tratando da PvAMA-1, a antigenicidade dos peptídeos com epítopos para células B previamente selecionados foi avaliada através de múltiplos ensaios sorológicos utilizando amostras de indivíduos com infecção aguda por P.vivax do norte do Brasil. Os peptídeos sintéticos foram reconhecidos por 45.5%, 48.7% e 31.2% (PI, PII e PII, respectivamente) dos indivíduos selecionados para o estudo. Quando sintetizados em conjunto (tripeptídeo), a reatividade aumentou para 62%, porcentagem comparável àquela obtida pela proteína em sua forma e tamanho originais (57%). Além disso, a reatividade anti-IgG conta o tripeptídeo foi reduzida em 42% pós-depleção, indicando que tais epítopos podem ser responsáveis por parte considerável da imunogenicidade da proteína. Esses resultados representam uma excelente perspectiva na identificação de novos alvos com potencial imunogênico para compor uma vacina, ou auxiliar no desenvolvimento de outras medidas de controle, como testes diagnósticos, já que contemplar diversos alvos do ciclo de vida do parasito parece ser a chave para alcançar a resposta robusta e protetora que uma vacina contra a malária vivax precisa para ter sucesso.

Plasmodium vivax is a major challenge for malaria control due to its wide geographic distribution, high frequency of submicroscopic infections, and ability to induce relapses due to the latent forms present in the liver (hypnozoites). The recent increase in drug-resistant P. vivax strains, the evolution toward more virulent forms and the early production of gametocytes adds up to make P. vivax malaria a public health issue of increasing importance. Besides its tricky biological features and new awareness of its virulence, minimal investments have been made in vaccine discovery for P. vivax. Given that, this study aimed to discover and characterize potential new targets for future vaccine development using samples from different endemic areas around the world (Brazil, Mali, Cambodia and United States of America). For this purpose, we investigated and characterized a novel protein recently discovered in the urine of naturally infected subjects (PvVir14) and described the immunogenic potential of peptides from a well-known vivax protein (PvAMA-1), which has been proved to have important B cell epitopes that can induce specific immune response. Circulating antibodies against PvVir14 appeared in 61% and 34.5% of subjects from Brazil and Cambodia, respectively, versus none (0%) of the P. falciparum-infected subjects from Mali who have no exposure to P. vivax. PvVir14 antibody levels correlated with those against other well-characterized sporozoite/liver (PvCSP) and blood stage (PvDBP-RII) antigens, which were recognized by 7.6% and 42% of Brazilians, respectively. Concerning the cellular immune profiling of Brazilian subjects, PvVir14 seroreactive individuals displayed significantly higher levels of circulating atypical (CD21− CD27−) B cells, raising the possibility that atypical B cells may be contribute to the PvVir14 antibody response. Among T cells, CD4+ and CD8+ levels differed (lower and higher, respectively) between subjects with versus without antibodies to PvVir14, while NKT cell levels were higher in those without antibodies. As for PvAMA-1, the antigenicity of the selected B-cell peptides was assessed by multiple serological assays using sera from acute P.vivax infected subjects. The synthetic peptides were recognized by 45.5%, 48.7% and 32.2% of infected subjects for peptides I, II and III respectively. Moreover, when synthetized together (tripeptide), the reactivity increases up to 62%, which is comparable to the reactivity found against the whole protein PvAMA-1 (57%). Furthermore, IgG reactivity against the tripeptide after depletion was reduced by 42%, indicating that these epitopes may be responsible for a considerable part of the protein immunogenicity. These results represent an excellent perspective on discovering new targets with immunogenic potential to compose a vaccine, or even to assist the development of other control measures, such as diagnostic tools, since contemplating several targets seems to be the key to achieving a robust and protective response that a malaria vaccine needs to be successful.

A semi-automated microscopic image analysis method for scoring Ki-67 nuclear immunostaining

Nuclear proliferation marker MIB-1 (Ki-67) immunohistochemistry (IHC) is used to examine tumor cell proliferation. However, the diagnostic or prognostic value of the Ki-67 nuclear staining intensity and location, defined as nuclear gradient (NG), has not been assessed. This study examined the potential association between Ki-67 NG and cell cycle phases and its effect on the prognosis of pulmonary typical carcinoid (PTC) tumors. We propose a method for classifying the NG of Ki-67 during the cell cycle and compare the results between PTC, pulmonary adenocarcinoma (PAD), and breast ductal carcinoma (BDC). A literature review and objective analysis of IHC-stained paraffin sections were used to determine the Ki-67 labeling index and composed a stratification of the NG into NG1, NG2, and NG3/4 categories. A semi-automated image analysis protocol was established to determine the Ki-67 NG in PTC, PAD, and BDC. High intraobserver consistency and moderate interobserver agreement were achieved in the determination of Ki-67 NG in tumor specimens. NG1 and NG2 were lower in PTC than in PAD and BDC. Cox multivariate analysis of PTC after adjusting for age and number of metastatic lymph nodes showed that Ki-67 NG1 and NG2 significantly predicted clinical outcomes. The semi-automated method for quantification of Ki-67 nuclear immunostaining proposed in this study could become a valuable diagnostic and prognostic tool in PTC.

B2 or Not B2: A Systematic Literature Review on Migraine Headaches and Riboflavin Deficiency / B2 ou não B2: uma revisão sistemática da literatura sobre enxaquecas e deficiência de riboflavina

Objective: To assess the prevalence of riboflavin deficiency in patients with migraines or headaches.Methods: Systematic review of the literature following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. Results: Two articles met the inclusion and exclusion criteria, and neither of these discussed riboflavin deficiency prevalence in those patients who suffer from migraines. Conclusion: The prevalence of riboflavin deficiency in migraineurs and in headache patients is unknown.

Objetivo: Avaliar a prevalência de deficiência de riboflavina em pacientes com enxaquecas ou dores de cabeça. Métodos :Revisão sistemática da literatura seguindo as diretrizes Preferred Reporting Items for Systematic Reviews and Meta-Analyses. Resultados: Dois artigos preencheram os critérios de inclusão e exclusão, e nenhum deles discutiu a prevalência de deficiência de riboflavina em pacientes que sofrem de enxaqueca. Conclusão: A prevalência da deficiência de riboflavina em pacientes com enxaqueca e com dor de cabeça é desconhecida.

How to incorporate telemedicine in medical residency: A Brazilian experience in pediatric emergency

ABSTRACT Introduction: The exponential growth of telehealth services during the COVID-19 pandemic led to the implementation of a telemedicine care service in a tertiary university pediatric hospital. It brought the need to develop a training aimed at remote care within the pediatric emergency rotation program. Objective: To describe the implementation of a telemedicine training for pediatric residents and present the preliminary results. Methods: Descriptive prospective study (pre and post), with 40 resident physicians of the first year of pediatrics. Reaction Assessments were applied before and after training, in addition to a resident physician perception questionnaire at the end of the training. Results: There was a significant difference in the resident's perception of experience and safety after initial training. Most rated the proposal as good or excellent, considered teaching telemedicine relevant and that this experience contributed to their learning on the subject. Conclusion: This study describes an innovative proposal for training in telemedicine. The preliminary results were encouraging, demonstrating the program's potential in training future pediatricians.

Emotional, hyperactivity and inattention problems in adolescents with immunocompromising chronic diseases during the COVID-19 pandemic

Abstract Objective: To assess factors associated with emotional changes and Hyperactivity/Inattention (HI) motivated by COVID-19 quarantine in adolescents with immunocompromising diseases. Methods: A cross-sectional study included 343 adolescents with immunocompromising diseases and 108 healthy adolescents. Online questionnaires were answered including socio-demographic data and self-rated healthcare routine during COVID-19 quarantine and validated surveys: Strengths and Difficulties Questionnaire (SDQ), Pittsburgh Sleep Quality Index (PSQI), Pediatric Quality of Life Inventory 4.0 (PedsQL4.0). Results: The frequencies of abnormal emotional SDQ scores from adolescents with chronic diseases were similar to those of healthy subjects (110/343 [32%] vs. 38/108 [35%], p = 0.548), as well as abnormal hyperactivity/inattention SDQ scores (79/343 [23%] vs. 29/108 [27%], p = 0.417). Logistic regression analysis of independent variables associated with abnormal emotional scores from adolescents with chronic diseases showed: female sex (Odds Ratio [OR = 3.76]; 95% Confidence Interval (95% CI) 2.00-7.05; p < 0.001), poor sleep quality (OR = 2.05; 95% CI 1.08-3.88; p = 0.028) and intrafamilial violence during pandemic (OR = 2.17; 95% CI 1.12-4.19; p = 0.021) as independently associated with abnormal emotional scores, whereas total PedsQL score was inversely associated with abnormal emotional scores (OR = 0.95; 95% CI 0.93-0.96; p < 0.0001). Logistic regression analysis associated with abnormal HI scores from patients evidenced that total PedsQL score (OR = 0.97; 95% CI 0.95-0.99; p = 0.010], changes in medical appointments during the pandemic (OR = 0.39; 95% CI 0.19-0.79; p = 0.021), and reliable COVID-19 information (OR = 0.35; 95% CI 0.16-0.77; p = 0.026) remained inversely associated with abnormal HI scores. Conclusion: The present study showed emotional and HI disturbances in adolescents with chronic immunosuppressive diseases during the COVID-19 pandemic. It reinforces the need to promptly implement a longitudinal program to protect the mental health of adolescents with and without chronic illnesses during future pandemics.

Pediatric emergency triage systems / Sistemas de triagem em emergência pediátrica

ABSTRACT Objective: The aim of this study was to perform a narrative review of the leading pediatric triage systems in emergency departments (EDs). Data source: Articles published between 1999 and 2019 were identified by searching the MEDLINE, EMBASE, and PubMed databases using the keywords "pediatric triage", "pediatric assessment tools", and "emergency department triage" with an emphasis on studies that evaluated the validation and reliability of triage systems. Data synthesis: A total of 105 articles on pediatric emergency triage systems in 12 countries were evaluated. Triage systems were divided into two groups: color-stratified triage systems and alert systems. The color-stratified triage systems included in this review were the Canadian Triage and Acuity Scale (CTAS), Manchester Triage System (MTS), Emergency Severity Index (ESI), and Australasian Triage Scale (ATS), and the alert systems included were the Paediatric Observation Priority Score (POPS), Pediatric Early Warning Score (PEWS), and Pediatric Approach Triangle (PAT). Evidence corroborates the validity and reliability of MTS, PaedCTAS, ESI version 4, PEWS, POPS, and PAT in pediatric emergency services. Conclusions: These are fundamental tools for risk classification of patients seeking treatment in EDs. Not all triage systems have been assessed for validity and reliability; nor are they well suited for all regions of the world. Employing triage systems in Brazil requires cultural adaptation and rigorous training of the local health staff, in addition to validation and reliability studies in our country, since the social and cultural context of this country differs from those where these tools were developed.

RESUMO Objetivo: Realizar uma revisão narrativa dos principais sistemas de triagem pediátrica nos serviços de emergência. Fontes de dados: Artigos publicados entre 1999 e 2019, obtidos por meio de busca nos bancos de dados Medical Literature Analysis and Retrieval System Online (Medline), Embase e PubMed usando as palavras-chave "pediatric triage", "pediatric assessment tools" e "emergency department triage", com ênfase em estudos que avaliaram a validação e a confiabilidade desses sistemas. Síntese dos dados: Foram avaliados 105 artigos sobre sistemas de triagem na emergência pediátrica de 12 países. Os sistemas de triagem foram divididos em dois grupos: estratificados por cores e de alerta. Os sistemas de triagem com estratificação por cores incluídos nesta revisão foram: Canadian Triage and Acuity Scale (CTAS), Manchester Triage System (MTS), Emergency Severity Index (ESI) e Australian Triage Scale (ATS). Os sistemas de alerta incluídos foram: Paediatric Observation Priority Score (POPS), Pediatric Early Warning Score (PEWS) e Pediatric Approach Triangle (PAT). Há evidências que corroboram a validade e a confiabilidade do MTS, PedCTAS, ESI v.4, PEWS, POPS e PAT em serviços de emergência de pediátricos. Conclusões: Os sistemas de triagem são ferramentas fundamentais para o atendimento de pacientes que procuram serviços de emergência. Nem todos os sistemas de triagem foram avaliados para validação e confiabilidade nem se aplicam a todas as regiões do mundo. Para a aplicação de sistemas de triagem no Brasil, devem ser feitos adaptação cultural e treinamento do estafe de saúde local, bem como estudos de validação e confiabilidade em nosso país, dado o seu contexto social e cultural diferente daquele dos países onde essas ferramentas foram desenvolvidas.

Auriculoterapia para o controle da ansiedade em estudantes universitários: uma revisão integrativa / Auriculotherapy for anxiety control in university students: an integrative review

Introdução: A ansiedade é um problema recorrente entre universitários e a auriculoterapia como técnica reconhecida pela Organização Mundial de Saúde e parte da Política Nacional de Práticas Integrativas e Complementares no Brasil pode contribuir para seu controle. Objetivo: Realizar uma revisão sistemática sobre a redução da ansiedade de universitários por meio da auriculoterapia. Métodos: Realizou-se busca por ensaios clínicos randomizados entre fevereiro e março de 2020 em quatro bases de dados, sendo a qualidade metodológica avaliada pela Escala PEDro seguindo as recomendações PRISMA. Resultados: Foram encontradas 962 referências, participando da análise quatro estudos. Verificou-se que houve variação entre os protocolos de intervenção, tempo de tratamento, instrumentos de quantificação do nível de ansiedade e nomenclaturas dos pontos. Um estudo não apresentou redução significativa da ansiedade. Três estudos foram classificados como de boa qualidade e um de baixa qualidade. Conclusão: Os estudos sugerem que a auriculoterapia pode ser eficaz no controle da ansiedade em universitários. Devido à especificidade da amostra, o número de estudos encontrados foi baixo, o que indicou a necessidade de mais pesquisas.

Brazilian Portuguese Childhood Autism Spectrum Test: an investigation of the factor structure of autistic traits in school-aged children

Objective: There is limited evidence about the cross-cultural validity of autistic symptoms in school-aged children in Brazil. We used data from a large school survey to evaluate the factor structure of autism symptoms in community-dwelling children and adolescents. Methods: We translated the Childhood Autism Spectrum Test to Brazilian Portuguese and performed factor analyses to investigate the factor structure of parent-reported autistic symptoms in a large sample (n=8,571) of children/adolescents from a school survey in the metropolitan area of São Paulo. Results: Autistic symptoms were best conceptualized under a correlated-factors model with two factors: one predominantly characterized by social-communication symptoms and the other by symptoms of inflexible/restricted language, behaviors, and interests. Conclusions: These findings provide evidence that the structure of autistic symptoms in Brazil is similar to that described in other countries, indicating the cross-cultural validity of autism in Brazil.

INCIDENTAL CUTANEOUS METASTASIS OF RENAL CELL CARCINOMA - REPORT OF AN INTERESTING CASE.

Background : Clear cell variant of renal cell carcinoma has highest risk of metastasizing. Cutaneous metastasis is however unusually rare. We report a case of an elderly male with a lesion on the chin, clinically suspected to be haemangioma, on histopathology diagnosed as cutaneous deposits of renal cell carcinoma, an incidental finding.Case Report : A 75 year old male presented to the surgical OPD with a swelling on the chin, noticed after trauma whilst shaving. The painless lesion rapidly progressed over a period of one and half month with no associated pain. Swelling was surgically excised with clinical suspicion of haemangioma. With histopathological and immunohistochemical examination, a diagnosis of metastasis of clear cell carcinoma originating from the kidney was made. Discussion : In the present case, the patient was an old male presenting with metastasis to the skin of chin, rapidly growing, an incidental finding, search for the primary lesion revealed a renal mass diagnosed as renal cell carcinoma. Conclusion : Although cutaneous metastasis of Renal cell carcinoma to skin is rare specially in chin region, proper clinical evaluation with the help of radiological correlation must be done to find out the primary lesion.

Physical and mental health impacts during COVID-19 quarantine in adolescents with preexisting chronic immunocompromised conditions

Abstract Objective: To evaluate physical and mental health indicators in adolescents with preexisting chronic immunocompromised conditions during coronavirus disease 2019 (COVID-19) quarantine. Methods: A cross-sectional study included 355 adolescents with chronic conditions and 111 healthy adolescents. An online self-rated survey was used to investigate socio-demographic features, healthcare routine, and the quarantine impact on physical and mental health. The validated self-reported version of the Strengths and Difficulties Questionnaire (SDQ) was also applied. Results: The median of age [14 (10-18) vs. 15 (10-18) years, p = 0.733] and frequencies of female (61% vs. 60%, p = 0.970) were similar between adolescents with preexisting chronic conditions and healthy adolescents during quarantine of COVID-19 pandemic. The frequencies of abnormal total difficulties score of SDQ were similar in patients and controls (30% vs. 31%, p = 0.775). Logistic regression analysis showed that being female (OR = 1.965; 95% CI = 1.091-3.541, p = 0.024), fear of underlying disease activity/complication (OR = 1.009; 95%CI = 1.001-1.018, p = 0.030) were associated with severe psychosocial dysfunction in adolescents with chronic conditions, whereas school homework (OR = 0.449; 95% CI = 0.206-0.981, p = 0.045) and physical activity (OR = 0.990; 95% CI = 0.981-0.999, p = 0.030) were protective factors. Further analysis of patients with chronic immunocompromised conditions and previous diagnosis of mental disorders (9%) compared with patients without diagnosis showed higher median of total difficulties score (p = 0.001), emotional (p = 0.005), conduct (p = 0.007), peer problems (p = 0.001) and hyperactivity (p = 0.034) in the former group. Conclusion: Adolescents with preexisting chronic immunocompromised conditions during COVID-19 quarantine were not at higher risk of adverse health indicators. Being female, fear of underlying disease activity/complication, and household members working outside of the home were relevant issues for adolescents with preexisting chronic conditions. This study reinforces the need to establish mental health strategies for teens with chronic conditions, particularly during the pandemic.

Incidence of Breakthrough Infections after COVID-19 Vaccination among the COVID-19 Vaccine Recipients at a Tertiary Care Hospital in Srinagar

COVID‑19 infections despite complete vaccination are called breakthrough infections. Breakthrough infections may decrease the vaccination confidence among people. This study was conducted soon after the Covishield vaccine was approved for use in J and K to find out the incidence of breakthrough infections among the recipients of the Covishield vaccine at SKIMS and to find out the associated factors. List of beneficiaries (between February 14, and May 15, 2021) was obtained from the records. Information was gathered telephonically. Incidence of breakthrough infections 6‑month postvaccination was determined. Among 919 participants, the incidence of breakthrough infections was 2.7% (25 cases). The medical profession was associated with a higher frequency of breakthrough infections. Most infections were mild to moderate (96%). One (4%) person required hospitalization. Thus, COVID‑19 infections can occur despite complete vaccination. Increased exposure places an individual at higher risk of breakthrough infections. Therefore, where exposure is high, COVID‑appropriate behavior should be followed despite being vaccinated.

Fast, cheap and feasible: Implementation of pediatric telemedicine in a public hospital during the Covid-19 pandemic

Abstract Objective: In Brazil, telemedicine was allowed as an exception during the coronavirus disease (COVID-19) pandemic. Despite its recognized value and availability, telemedicine is not universally used, suggesting that some barriers prevent its adoption and acceptance within the community. This study aims to describe the implementation of a low-cost telemedicine service in a pediatric hospital in Brazil. Method: Retrospective descriptive study reporting the first three months (April to June 2020) of the experience of implementing a low-cost telemedicine emergency care program in a public tertiary hospital. The service was available to patients up to 18 years of age enrolled in this hospital. A tool for assessing the severity of the patient was developed, the aim of standardizing the procedure, while maintaining quality and safety. Guardian's satisfaction was assessed with a questionnaire sent after teleconsultations. Results: 255 teleconsultations were carried out with 140 different patients. Of the total consultations, 182 were from 99 patients that had performed the Real-Time Polymerase Chain Reaction (RT-PCR) test for the new coronavirus (SARS-Cov-2) or had direct contact with a person known to be positive for COVID-19. Only 26 (14%) were referred to an in-person consultation. No deaths, adverse events or delayed diagnosis were recorded. 86% of the patients who answered the satisfaction questionnaire were satisfied and 92% would use telemedicine again. Conclusion: This study presents an innovative implementation of a telemedicine program in a public and exclusively pediatric tertiary service, serving as a reference for future implementation in other public services in Brazil and developing countries.

Bilateral En-Block Horseshoe Kidney Laparoscopic Nephrectomy / Nefrectomía bilateral en bloque en riñón en herradura

Horseshoe kidney (HSK) has a prevalence of 1 in every 500 individuals. The management of patients with HSK is usually conservative, except in the presence of symptoms such as obstruction, stones, glomerulopathies, and tumors. In the following case report, we describe how a bilateral en-block transmesenteric laparoscopic nephrectomy in supine position was performed. A 5-year-old boy, with proximal hypospadias and early onset of chronic kidney disease due to focal segmental glomerulosclerosis on biopsy, underwent a genetic molecular evaluation that confirmed a pathogenic mutation at the WT-1 gene. Due to the increased risk of developing Wilms tumor, he underwent a bilateral transmesenteric nephrectomy. In a five-minute video, we describe how we performed an en-block transperitoneal and transmesenteric laparoscopic nephrectomy with special attention to patient positioning, including the feasibility of performing the dissection of the left renal hilum and isthmus with the patient in supine with no need for repositioning, and then moving to the dissection of the right renal hilum and completion of the procedure. The case herein reported enables us to describe the technical key-points to perform a bilateral en-block laparoscopic nephrectomy with shorter operative time and reduction of blood loss by preserving the entire specimen, without the need for an isthmus transection.

El riñón en herradura (RH) tiene una prevalencia de 1 en cada 500 individuos. El manejo del RH es usualmente conservador, excepto cuando genera síntomas como obstrucción, litiasis, glomerulopatías o tumores. Con este reporte de caso, describimos como se realizó una nefrectomia bilateral en bloque transmesentérica en un paciente con riñón en herradura. Un paciente de 5 años de edad, con hypospadias proximal y desarrollo temprano de enfermedad renal crónica por glomeruloesclerosis focal segmentaria, fue sometido a un estudio molecular que confirmó la presencia de una mutación en el gen WT-1. Dado el alto riesgo de desarrollar tumor de Wilms, se decidió realizar una nefrectomía transperitoneal laparoscópica bilateral. En un video de cinco minutos, describimos como se realizó una nefrectomía transperitoneal y transmesentérica en bloque, con especial atención al posicionamiento del paciente, incluso la viabilidad de realizar la disección del hilio renal izquierdo y el istmo con el paciente en supino, sin necesidad de reposicionarlo, y, después, la disección del hilio renal derecho y el fin del procedimiento. El caso reportado nos permite describir los puntos clave técnicos para realizar una nefrectomía laparoscópica bilateral en bloque con un tiempo operativo más corto y reducción del sangrado al preservar todo el espécimen, sin la necesidad de realizar la transección del istmo.

Distribuição espacial das Práticas Integrativas e Complementares em Saúde na Atenção Básica no Brasil / Spatial Distribution of Integrative and Complementary Health Practices in Primary Health Care in Brazil / Distribución espacial de las Prácticas Integrativas y Complementarias de Salud en la Atención Básica de Brasil

Objetivo: Analisar a distribuição espacial das Práticas Integrativas e Complementares em Saúde (PICS) na Atenção Básica (AB) brasileira para a ampliação da discussão sobre sua oferta. Métodos: Estudo ecológico transversal realizado em 2020, a partir do sistema público brasileiro de informação em saúde do ano de 2019. Para análise, analisou-se a variável dependente quantidade de atendimentos, enquanto as variáveis independentes deram-se por território, Índice de Desenvolvimento Humano (IDH) e a cobertura da AB. Para as comparações estatísticas utilizaram-se os testes de qui-quadrado de Pearson e correlação de Spearman. Resultados: Considerando AB, secundária e terciária do Sistema Único de Saúde (SUS), a prevalência total de atendimentos em 2019 apresentou-se por 1.593.128. Separando e analisando exclusivamente a AB (n=51.352; 3.2%), a maior prevalência de atendimentos apresentou-se nas regiões Sudeste (n=15.210; 29,7%) e Nordeste (n=12.559; 24.4%), com ocorrências maiores de sessões de eletroestimulação (n=6.397; 12,4%) e de práticas corporais em Medicina Tradicional Chinesa (n=4.588; 8,9%). As correlações deram-se positivas entre atendimentos e população (r=0,62), e entre atendimentos e IDH (r=0,24). Conclusão: Evidenciou-se que a distribuição espacial das PICS na AB é desigual ao se considerar as prevalências de cada região. Já as correlações positivas podem representar a procura por alternativas de cuidado frente a condições crônicas, queixas musculoesqueléticas e insatisfação com a Medicina Moderna; fatores que geralmente provocam o aumento pela procura de PICS, principalmente em regiões onde o desenvolvimento social mais elevado favorece a autonomia da pessoa.

Objective:To analyze the spatial distribution of Integrative and Complementary Health Practices (Práticas Integrativas e Complementares em Saúde ­ PICS) in Brazil's Primary Health Care (PHC) to broaden the discussion about its offer. Methods: A cross-sectional ecologic study was carried out in 2020 using data from the Brazilian public health care information system dating from 2019. For the analysis, the dependent variable was the number of visits, and the independent variables were the territory, the Human Development Index (HDI) and PHC coverage. Pearson's chi-square and Spearman's correlation tests were used for statistical comparisons. Results: Thetotal prevalence rate of visits in 2019 was 1,593,128 in primary, secondary and tertiary care within the Unified Health System (Sistema Único de Saúde ­ SUS). When we analyzed exclusively and separately PHC (n=51,352; 3.2%), the highest rate of visits was found in the Southeast (n=15,210; 29.7%) and Northeast (n=12,559; 24.4%) regions, with higher rates of electrical stimulation sessions (n=6,397; 12.4%) and body practices in Traditional Chinese Medicine (n=4,588; 8.9%). Correlations were positive between visits and population (r=0.62) and between visits and HDI (r=0.24). Conclusion:It was evident that the spatial distribution of PICS in PHC is uneven when considering the prevalence rate of each region. The positive correlations may represent the search for alternative care in the face of chronic conditions, musculoskeletal complaints, and dissatisfaction with Modern Medicine. These factors generally cause an increase in the demand for PICS, especially in regions where higher social development favors individual autonomy.

Objetivo: Analizar la distribución espacial de las Prácticas Integrativas y Complementarias de Salud (PICS) de la Atención Básica (AB) brasileña para la ampliación de la discusión de su oferta. Métodos: Estudio ecológico transversal realizado en 2020 a partir del sistema público brasileño de información en salud del año 2019. Se analizó la variable dependiente "cantidad de consultas" mientras las variables independientes se dieron por el territorio, el Índice de Desarrollo Humano (IDH) y la cobertura de la AB. Para las comparaciones estadísticas se ha utilizado las pruebas de chi-cuadrado de Pearson y la correlación de Spearman. Resultados: Considerando la AB, secundaria y terciaria del Sistema Único de Salud (SUS), la prevalencia total de las consultas en 2019 ha sido de 1.593.128. Separando y analizando exclusivamente la AB (n=51.352; 3.2%), la mayor prevalencia de consultas se dio en las regiones Sudeste (n=15.210; 29,7%) y Noreste (n=12.559; 24.4%), con ocurrencias de más sesiones de electroestimulación (n=6.397; 12,4%) y de prácticas corporales de la Medicina Tradicional China (n=4.588; 8,9%). Las correlaciones han sido positivas entre las consultas y la población (r=0,62) y entre las consultas y el IDH (r=0,24). Conclusión: Se ha evidenciado que la distribución espacial de las PICS en la AB es desigual respecto las prevalencias de cada región. Las correlaciones positivas pueden representar la búsqueda de alternativas de cuidado para las condiciones crónicas, las quejas musculo esqueléticas y la insatisfacción con la Medicina Moderna; factores que, en general, llevan al mayor interés por las PICS, sobre todo en las regiones donde el desarrollo social más alto favorece la autonomía de la persona.

Post-varicella arterial ischemic stroke in children and neurocognitive performance: a 4-year follow-up study

ABSTRACT Objective To analyze data from children who were previously healthy and presented with post-varicella arterial ischemic stroke upon arrival when admitted to the emergency room, with focus on the clinical/laboratory aspects, and neurocognitive performance after four-year follow-up. Methods Seven children presenting with arterial ischemic stroke after varicella were evaluated at pediatric emergency services in the city of São Paulo (SP), Brazil. Ischemic stroke was determined by magnetic resonance imaging/magnetic resonance angiography in a topography compatible with the areas supplied by the middle cerebral or internal carotid arteries. IgG-class antibodies against varicella zoster virus and varicella-zoster virus DNA by polymerase chain reaction in cerebrospinal fluid were tested. Patients with prothrombotic conditions were excluded. The Pediatric Stroke Outcome Measure was applied upon admission and 4-years after the stroke. Results All patients (age range: 1.3 to 4 years) included presented chickenpox 5.1 (±3.5) months before. All patients had analysis of anti-varicella-zoster-virus-IgG in cerebrospinal fluid, but only three (43%) had a positive result. Of the patients 43% had no vascular lesions identified in magnetic resonance angiography. All patients showed improvement in their sequela scores. After 4 years, five patients displayed good evolution in the Pediatric Stroke Outcome Measure, and only one patient presented with a score of 2 in the sensorimotor and cognition areas. No recurrence of arterial ischemic stroke was observed. Conclusion We reinforced the non-progressive course of post-varicella arterial ischemic stroke after 4-year follow-up. The presence of varicella-zoster-virus-DNA detected by polymerase chain reaction, and/or intrathecal IgG antibody against varicella zoster virus, and angiopathy location in magnetic resonance angiography were not determining for the diagnosis. Invasive tests, with low sensitivity, should be well considered in the diagnosis of post-varicella arterial ischemic stroke.

SARS-CoV-2 and rhinovirus infections: are there differences in clinical presentation, laboratory abnormalities, and outcomes in the pediatric population?

ABSTRACT This study aims to assess COVID-19 and other respiratory viruses in pediatric patients. Between April 17 and September 30, 2020, we collected 1,566 respiratory samples from 1,044 symptomatic patients who were younger than 18 years old to assess SARS-CoV-2 infection. Of these, 919 were analyzed for other respiratory pathogens (ORP). Patients with laboratory-confirmed COVID-19 or ORP were included. We evaluated 76 pediatric COVID-19 infections and 157 other respiratory virus infections. Rhinovirus occurred in 132/157 (84%). COVID-19 patients who were significantly older, had more fevers, headaches and pneumonia than those with ORP. The median white blood cell count was lower in patients with SARS-CoV-2 than in those with ORP (6,470 versus 8,170; p=0.02). COVID-19 patients had significantly worse symptoms than those with ORP.

Nonsexual violence against children and adolescents: a study in a Latin American tertiary and university hospital / Violência não sexual contra crianças e adolescentes: um estudo em um hospital universitário e terciário da América Latina

Abstract Objective: The objective of this study was to assess interpersonal nonsexual violence against children and adolescents in a tertiary university hospital. Methods: A cross-sectional study was performed in 240 patients under nonsexual violence situation for 15 consecutive years. Data analyses included demographic data, hospital referral site, type and author of nonsexual violence, legal referral, laboratorial and imaging examinations, and outcomes. Results: Nonsexual violence situation was diagnosed in 240 (0.1%) of 295,993 patients for 15 years: 148 (61.7%) in children and 92 (38.3%) in adolescents. Out of 240, the most frequent types of violence were negligence in 156 (65.0%), physical 62 (25.8%), psychological/emotional aggression 52 (21.7%), Munchausen by proxy syndrome 4 (1.7%), and bullying/cyberbullying in 3 (1.3%). Out of 123, the most common pediatric chronic conditions were chronic kidney disease 24 (19.5%), human immunodeficiency virus 14 (11.4%), prematurity 9 (7.3%), cerebral palsy 8 (6.5%), and asthma 8 (6.5%). Further comparison between children versus adolescent under nonsexual violence situation revealed significant difference between the hospital referral sites. The frequency of patients under violence referred from outpatient clinics was significantly reduced in children versus adolescents (27.7 vs. 62%), whereas emergency department was higher in the former group (57.4 vs. 25.0%; p<0.001). All types of violence situations and pediatric chronic conditions were similar in both groups (p>0.05). Conclusions: Nonsexual violence against our pediatric population was rarely diagnosed in a tertiary hospital, mainly negligence, physical, and psychological/emotional aggression. Approximately two-thirds of violence diagnosis occurred in children, referred mainly by the emergency department. In contrast, approximately one-third of violence diagnosis occurred in adolescents, referred mostly by outpatient clinics.

Objetivo: Avaliar violência interpessoal não sexual contra crianças e adolescentes em um hospital universitário terciário. Métodos: Foi realizado um estudo transversal com 240 pacientes em situação de violência não sexual por 15 anos. A análise incluiu: dados demográficos, local de referência do hospital, tipo e autor da violência, encaminhamento legal, exames laboratoriais e de imagem, e desfechos graves. Resultados: Situações de violência não sexual foram diagnosticadas em 240 de 295.993 (0,1%) pacientes durante os 15 anos do período: 148/240 (61,7%) em crianças e 92/240 (38,3%) em adolescentes. Os tipos de violências mais frequentes foram negligência em 156/240 (65,0%), violência física 62/240 (25,8%), agressão psicológica/emocional 52/240 (21,7%), síndrome de Münchausen por procuração 4/240 (1,7%) e bullying/cyberbullying em 3/240 (1,3%). As condições crônicas pediátricas mais frequentes foram: doença renal crônica 24/123 (19,5%), vírus da imunodeficiência humana 14/123 (11,4%), prematuridade 9/123 (7,3%), paralisia cerebral 8/123 (6,5%) e asma 8/123 (6,5%). Comparações entre crianças e adolescentes em situação de violência não sexual revelaram que houve diferença significativa entre os locais de referência do hospital. A frequência de pacientes sob violência encaminhados de ambulatórios foi significantemente reduzida em crianças versus adolescentes (27,7 vs. 62%), enquanto encaminhamentos de pronto-socorro foram mais numerosos no primeiro grupo (57,4 vs. 25%, p<0,001). Os tipos de violências e condições pediátricas crônicas foram semelhantes nos dois grupos(p>0,05). Conclusões: Violência não sexual na nossa população pediátrica foi raramente diagnosticada em um hospital terciário, principalmente negligência, agressão física e psicológica/emocional. Aproximadamente dois terços dos diagnósticos de violência ocorreram em crianças, preferencialmente encaminhadas pelo departamento de emergência. Em contrapartida, cerca de um terço dos diagnósticos de violência ocorreu em adolescentes, encaminhados principalmente pelos ambulatórios.

Impacto na saúde mental de enfermeiros pediátricos: um estudo transversal em hospital pediátrico terciário durante a pandemia de COVID-19 / Mental health impacts in pediatric nurses: a cross-sectional study in tertiary pediatric hospital during the COVID-19 pandemic / Impacto en la salud mental de enfermeros pediátricos: un estudio transversal en un hospital pediátrico de tercer nivel durante la pandemia de COVID-19

Resumo Objetivo: avaliar problemas de saúde mental em enfermeiros pediátricos durante a pandemia causada pelo coronavírus 2019. Método: estudo transversal realizado com enfermeiros pediátricos do Instituto da Criança e do Adolescente, por meio de uma pesquisa online de autoavaliação sobre prática clínica e impacto na saúde mental, durante a pandemia de COVID-19. Foram avaliadas escalas de autoavaliação validadas para ansiedade, depressão e burnout. Resultados: 107/298(36%) enfermeiros responderam, dos quais 90% eram do sexo feminino, a mediana de idade atual era 41(23-64) anos, 68% trabalhavam com adolescentes, 66% trabalhavam na linha de frente. Burnout, ansiedade e depressão moderada/grave ocorreram em 65%, 72% e 74% dos enfermeiros, respectivamente. Falta de protocolo de tratamento padronizado nas enfermarias (27% vs. 10%, p=0,049), depressão moderada/grave (74% vs. 16%, p=0,002) e burnout (82% vs. 58%, p=0,01) foram significativamente maiores em enfermeiros pediátricos com ansiedade, em comparação com enfermeiros sem essa condição. Os enfermeiros pediátricos que trabalhavam com adolescentes apresentaram maior frequência de burnout, quando comparados aos que não trabalhavam com esse grupo (77% vs. 32%, p=0,0001). A análise multivariada revelou que o cumprimento adequado da quarentena aumentou a presença de ansiedade em 4,6 vezes [OR 4.6(IC 1,1-20,2), p=0,04]. Conclusão: a maioria dos enfermeiros pediátricos atuava na linha de frente da COVID-19, em condições precárias, trabalhando com equipe reduzida e enfrentando perdas expressivas de renda. A ansiedade atual foi um tema relevante e o burnout também foi uma condição mental importante para esses profissionais, reforçando a cultura do bom trabalho em equipe, das práticas de colaboração e do cuidado psicológico/psiquiátrico.

Abstract Objective: to assess mental health issues in pediatric nurses during coronavirus pandemic in 2019. Method: cross-sectional study was conducted with pediatric nurses at the Instituto da Criança e do Adolescente based on online self-rated survey about clinical practice and mental health impact during COVID-19 pandemic. Validated self-reported scales for anxiety, depression and burnout were used for assessing these professionals. Results: 107/298 (36%) nurses answered, 90% were female, median age was 41(23-64) years, 68% worked with adolescents, 66% in frontline. Burnout, anxiety and moderate/severe depression occurred in 65%, 72% and 74%, respectively. Lack of standardized treatment protocol for nurses (27%vs.10%, p=0.049), moderate/severe depression (74% vs. 16%, p=0.002) and burnout (82% vs. 58%, p=0.01) were significantly higher in pediatric nurses with anxiety compared to those without. Pediatric nurses that worked with adolescents compared to those that did not showed higher frequency of burnout in the former group (77% vs. 32%, p=0.0001). Multivariable analysis revealed that adequate quarantine adherence increased the presence of anxiety in 4.6 times [OR4.6(CI 1.1-20.2), p=0.04]. Conclusion: most pediatric nurses who had worked in the frontline of COVID-19 were under precarious conditions, working with reduced team, and with an expressive changes in their monthly income. Current anxiety was a relevant issue, burnout was also an important mental condition for these professionals, reinforcing culture of good teamwork, collaboration practices and psychological/psychiatric approach.

Resumen Objetivo: evaluar los problemas de salud mental en enfermeros pediátricos durante la pandemia del coronavirus 2019. Método: estudio transversal realizado con enfermeros pediátricos del Instituto da Criança e do Adolescente mediante una encuesta de autoevaluación en línea sobre la práctica clínica y el impacto en la salud mental durante la pandemia de COVID-19. Se evaluaron escalas de autoevaluación validadas para ansiedad, depresión y burnout. Resultados: respondieron 107/298 (36%) de los enfermeros, de los cuales 90% eran del sexo femenino, la mediana de edad actual fue de 41 (23-64) años, 68% trabajaban con adolescentes, 66% trabajaban en primera línea. Burnout, ansiedad y depresión moderada/grave ocurrieron en 65%, 72% y 74% de los enfermeros, respectivamente. Falta de protocolo de tratamiento estandarizado en las enfermerías (27% vs. 10%, p=0,049), depresión moderada/grave (74% vs. 16%, p=0,002) y burnout (82% vs. 58%, p=0,01) fueron significativamente mayores en enfermeros pediátricos con ansiedad en comparación con enfermeros sin esta condición. Los enfermeros pediátricos que trabajaban con adolescentes presentaron mayor frecuencia de burnout en comparación con los que no trabajaban con adolescentes (77% vs. 32%, p=0,0001). El análisis multivariado reveló que el adecuado cumplimiento de la cuarentena aumentó 4,6 veces la presencia de ansiedad [OR 4.6(IC 1,1-20,2), p=0,04]. Conclusión: La mayoría de los enfermeros pediátricos trabajaban en la primera línea de la COVID-19, en condiciones precarias, trabajando con un equipo reducido y enfrentando importantes pérdidas de ingresos. La ansiedad actual fue un tema relevante y el burnout también fue una condición mental importante para estos profesionales, reforzando la cultura del buen trabajo en equipo, las prácticas colaborativas y la atención psicológica/psiquiátrica.

Probiotic Characterization of Enterococcus spp. Isolated from Raw Goat Milk

Abstract: The aim of this research was to determine the probiotic potential and safety of lactic acid bacteria (LAB) isolated from raw goat milk. Gram positive and catalase negative bacteria were isolated from raw goat milk (n = 61) and identified as LAB. LAB isolates were screened for antimicrobial, probiotic and technological characteristics. LAB isolates showed antimicrobial activity against foodborne pathogens (Staphylococcus aureus, Escherichia coli and Salmonella Typhimurium) and high survival rate at pH 2 (93.54-100.38% after 4h), in the presence of 0.3% bile salts (100.85-108.96% after 4h) and simulated gastric fluid (74.16-80.13% after 3h). Three LAB isolates (1, 3 and 13) with high antimicrobial activity against all foodborne pathogens and probiotics characteristics were subjected to 16S rRNA sequencing and identified as Enterococcus faecium strains. Enterococcus spp. exhibited milk coagulation potential, amylolytic activity, susceptibility to antibiotics and no evidence of hemolysis. Enterococcus spp. isolated from goat milk showed probiotic and technological characteristics and can be used as a starter culture after further safety evaluation.