A new ultrasound-assisted microextraction for elemental impurities determination in tablets by ICP-MS according to USP chapters 232 and 233.

Along with the United States Pharmacopeia (USP) chapters 232 and 233 regarding elemental impurities in pharmaceutical products, new challenges have been imposed in terms of sample preparation procedures prior to inductively coupled plasma mass spectrometry analysis, considering the matrix complexities. As so, a new microextraction procedure assisted by ultrasound using a cup-horn sonoreactor, minimal reactants, and sample was proposed and validated according to USP. The procedure was optimized with samples of milled tablets and 3 different acid mixtures (HNO3, 3HNO3:1HCl, and 9HNO3:1HF) and it was compared with microwave-assisted acid digestion. In the validation step, recoveries ranging from 85 to 120 % and RSD below 10 % were obtained for 22 analytes (except Ag and Pt) with satisfactory linearity and good sensitivity. The method was then applied for 37 samples of antidepressants, which presented trace levels of As, Ba, Cd, Co, Cr, Cu, Ni, Pb, Pd, Sn, and V.

Prognóstico e Características Clínico Patológicas do Câncer de Mama HER2-Low com Receptores Hormonais Negativos / Prognosis and clinicopathological characteristics of HER2-low breast cancer with negative hormone receptors

Introdução: Os tumores triplo-negativos representam cerca de 15% dos casos de câncer de mama. Apesar dos avanços significativos em termos de tratamento, a busca por biomarcadores alvo na doença triplo-negativa ainda se mostra necessária, devido a seu perfil de evolução desfavorável e comportamento agressivo. O estudo DESTINY-Breast04 demonstrou a atividade antitumoral do Trastuzumabe-Deruxtecan no cenário de tumores com expressão baixa a moderada do já conhecido receptor HER2. Estudos realizados no cenário de doença inicial e avançada encontraram resultados controversos quanto à real implicação clínica e prognóstica de tumores HER2-zero e HER2-low. Objetivos: Avaliar o prognóstico, em 60 meses, e as características clinicopatológicas entre as diferentes expressões de HER2 no câncer primário de mama triplo-negativo em estádios I a III. Métodos: Coorte retrospectiva de mulheres com diagnóstico de câncer de mama triplo-negativo em estágio inicial, que receberam tratamento com cirurgia e quimioterapia no Instituto Nacional do Câncer entre 2010 e 2016. Os dados coletados abordaram aspectos da paciente, do tumor, dos tratamentos aplicados e da progressão da doença. Resultado: Foram avaliadas 512 pacientes com câncer de mama triplo-negativo, em que 44,9% tinham expressão de HER2 zero, 44,1% score 1+/3+, e 10,9% score 2+/3+. A média de idade foi de 51 anos. Não houve diferença significativa ao comparar as características sociodemográficas, clínicas e patológicas entre os subgrupos de HER2. Também não foi encontrada diferença em termos de resposta patológica completa, sobrevida livre de recidiva e sobrevida global em 60 meses. Conclusão: Os resultados deste estudo sugerem que as diferentes expressões de HER2 no câncer de mama triplo-negativo em estágio inicial não possuem desfechos clínicos e prognósticos distintos

Introduction: Triple-negative breast cancer accounts for about 15% of all breast cancer cases. Despite significant advances in terms of treatment, the search for targetable biomarkers in the triple negative disease is still necessary, considering its unfavorable evolution and aggressive behavior. The DESTINY-Breast04 study was able to elucidate an opportunity of targeted treatment for these patients by demonstrating the antitumor activity of Trastuzumab-Deruxtecan in the scenario of low to moderate expression of the known HER2 receptor. Studies carried out in the setting of initial and advanced disease have found controversial results regarding the real clinical and prognostic implications between HER2-zero and HER2-low subgroups. Objective: To evaluate the 60-month prognosis and clinicopathological characteristics of different HER2 expressions in primary triple-negative breast cancer in stages I to III. Methods: Retrospective cohort of women diagnosed with early stage triple negative breast cancer who underwent surgery and chemotherapy in a single Brazilian institution from 2010 to 2016. The data collected addressed demographic aspects of the patient, tumor features, the applied treatments and the progression of the disease. Tumors were defined as HER2-low if they had a HER2 immunohistochemistry score of 1+ or 2+ with negative in situ hybridization and HER2-zero if they had a HER2 score of 0. Results: A total of 512 cases were evaluated, in which 44.9% had HER2-zero tumors, 44.1% had HER2 immunohistochemistry score of 1+/3+, and 10.9% of 2+/3+. The mean age was 51 years. There was no significant difference when comparing sociodemographic, clinical and pathological characteristics between HER2 subgroups. Also, no statistically significant difference was found in terms of complete pathological response, relapse-free survival, site of relapse, and overall 60-month survival. Conclusion: The results of this study suggest that the clinical behavior and prognosis of the different expressions of HER2 in the early-stage triple-negative breast cancer do not differ significantly

Are patient volume and care level in teaching hospitals variables affecting clinical outcomes in adult intensive care units?

Teixeira et al. showed that patients admitted to the intensive care unit of a teaching hospital in a non-metropolitan region needed more support, had worse prognostic indices, and had a higher nursing workload in the first 24 hours of admission. In addition, worse outcomes, including mortality, need for dialysis, pressure injury, infection, prolonged mechanical ventilation, and prolonged hospital stay, were observed in the teaching hospital. Worse outcomes were more prevalent in the teaching hospital. Understanding the importance of teaching hospitals to implement well-established care protocols is critical. OBJECTIVE: To compare the clinical outcomes of patients admitted to the intensive care unit of teaching (HI) and nonteaching (without an academic affiliation; H2) hospitals. METHODS: In this prospective cohort study, adult patients hospitalized between August 2018 and July 2019, with a minimum length of stay of 24 hours in the intensive care unit, were included. Patients with no essential information in their medical records to evaluate the study outcomes were excluded. Resuslts: Overall, 219 patients participated in this study. The clinical and demographic characteristics of patients in H1 and H2 were similar. The most prevalent clinical outcomes were death, need for dialysis, pressure injury, length of hospital stay, mechanical ventilation >48 hours, and infection, all of which were more prevalent in the teaching hospital. CONCLUSION: Worse outcomes were more prevalent in the teaching hospital. There was no difference between the institutions concerning the survival rate of patients as a function of length of hospital stay; however, a difference was observed in intensive care unit admissions.

Effect of the Association of Fixed Oils from Abelmoschus esculentus (L.) Moench, Euterpe oleracea Martius, Bixa orellana Linné and Chronic SM® on Atherogenic Dyslipidemia in Wistar Rats.

Dyslipidemia presents high levels of serum cholesterol and is characterized as a risk factor for cardiovascular diseases, especially for the development of atherosclerosis. E. oleracea oil (OFEO), A. esculentus oil (OFAE), B. orellana oil (OFBO), and Chronic SM® granules (CHR) are rich in bioactive compounds with the potential to treat changes in lipid metabolism. This study investigated the effects of treatments with oils from A. esculentus, E. oleracea, B. orellana, and Chronic SM® on Cocos nucifera L. saturated-fat-induced dyslipidemia. The chromatographic profile showed the majority presence of unsaturated fatty acids in the tested oils. The quantification of tocotrienols and geranylgeraniol in OFBO and CHR was obtained. Treatments with OFEO, OFAE, OFBO, and CHR were able to significantly reduce glycemia, as well as hypertriglyceridemia, total cholesterol, and LDL-cholesterol, besides increasing HDL-cholesterol. The treatments inhibited the formation of atheromatous plaques in the vascular endothelium of the treated rats. The obtained results suggest that the OFEO, OFAE, OFBO, and CHR exhibit antidyslipidemic effects and antiatherogenic activity.

A residência em saúde da família e comunidade no fortalecimento do Sistema Único de Saúde / La residencia de salud familiar y comunitaria en el fortalecimiento del Sistema Único de Salud / The family and community health residency in the strengthening of the Unified Health System

Objetivo: compreender a maneira como a residência em saúde da família e comunidade atua como instrumento para o fortalecimento e a defesa do Sistema Único de Saúde sob a ótica da enfermagem. Método: estudo do tipo exploratório-descritivo com abordagem qualitativa, desenvolvido com 13 enfermeiros residentes. Neste estudo, os dados foram coletados de modo remoto por meio de entrevista semiestruturada, processados pelo software IRaMuTeQ e interpretados conforme análise de conteúdo de Bardin. Resultados: os resultados apontam que as residências na área da saúde se expressam com força política, conhecimento teórico e formação na prática, essenciais para fortalecer o controle social. Conclusão: faz-se necessário que a formação dos profissionais seja orientada a partir dos princípios/objetivos do SUS e que ocorra o combate aos ataques iminentes, exemplificados pelo baixo financiamento e má gestão.

Objective: to understand the way in which residency in family and community health acts as an instrument for strengthening and defending the Unified Health System from the perspective of nursing. Method: exploratory-descriptive study with a qualitative approach, developed with 13 resident nurses.In this study, data were collected remotely with semi-structured interviews, processed by the IRAMUTEQ software, and interpreted according to Bardin's content analysis. Results: the results indicate that residencies in the health area express themselves with political force, theoretical knowledge, and training in practice, essential to strengthen social control. Conclusion: the training of professionals must be guided from the principles/objectives of the SUS and the fight against imminent attacks, exemplified by low funding and poor management, must occur.

Objetivo: comprender el modo en que la residencia en salud familiar y comunitaria actúa como instrumento de fortalecimiento y defensa del Sistema Único de Salud (SUS) desde la perspectiva de la enfermería. Método: estudio exploratório descriptivo, con enfoque cualitativo, desarrollado con 13 enfermeras residentes. En este estudio, los datos se recolectaron de forma remota mediante entrevistas semiestructuradas, que, posteriormente, fueron procesadas por el software IRaMuTeQ e interpretadas de acuerdo con el análisis de contenido de Bardin. Resultados: las residencias en el área de la salud se desarrollan con fuerza política, conocimiento teórico y formación práctica, lo que es esencial para fortalecer el control social. Conclusión: es necesario que la formación de los profesionales se base en los principios/objetivos del SUS y que ocurra la lucha contra los inminentes ataques, ejemplificados por una baja financiación y mala gestión.

O impacto do uso de métodos contraceptivos orais na função sexual de mulheres em idade reprodutiva / The impact of the use of oral contraceptive methods on the sexual function of women of reproductive age

Objetivo: Investigar o impacto dos contraceptivos orais hormonais na função sexual de mulheres. Métodos: Estudo transversal realizado por meio do questionário traduzido e validado "Índice da Função Sexual Feminina", capaz de estimar o risco de disfunção sexual feminina. Dados sociodemográficos, ginecológicos, medicamentosos e outros foram avaliados e correlacionados estatisticamente a esse escore, estimando possíveis causas da disfunção sexual, com destaque para o uso de anticoncepcional oral. O estudo foi baseado em uma amostragem por conveniência, incluindo mulheres > 18 anos em idade reprodutiva, de 04/01/2021 a 04/01/2022, obedecendo aos critérios de inclusão e exclusão. Resultados: Participaram deste estudo 105 mulheres com média e desvio-padrão de idade de 23,4 ± 3,8 anos, predominantemente heterossexuais (84,0%) e bissexuais (13,2%). A maioria delas (93,4%) utiliza métodos contraceptivos, sendo esses anticoncepcional oral (45,3%), DIU hormonal (19,8%) e camisinha (17,0%). A composição hormonal mais utilizada foi levonorgestrel (26,4%) e etinilestradiol (25,5%). Oitenta por cento das mulheres são sexualmente ativas, 69,3% delas têm parceria fixa, 42,5% tinham relações quase sempre e 33,0% referiam que as relações sexuais eram sempre satisfatórias. Houve boa adequação da amostra (0,865) e significância estatística (p < 0,0001). Utilizar ou não método contraceptivo apresentou diferença nos domínios desejo, satisfação e dor. Contudo, as questões do histórico sexual foram as que mais apresentaram relevância estatística em relação aos domínios. Conclusão: Apesar de outros estudos serem necessários para provar a hipótese de que os contraceptivos orais têm impacto negativo na função sexual feminina, é clara a importância de os profissionais de saúde já estarem cientes dessa possibilidade e saberem como abordá-la.

Objective: To investigate the impact of hormonal oral contraceptives on women's sexual function. Methods: Cross-sectional study carried out using the translated and validated questionnaire "Index of Female Sexual Function", capable of estimating the risk of female sexual dysfunction. Sociodemographic, gynecological, medication and other data were evaluated and statistically correlated to this score, estimating possible causes of sexual dysfunction, with emphasis on the use of oral contraceptives. The study was based on a convenience sample, including women > 18 years of reproductive age, from 01/04/2021 to 01/04/2022, following inclusion and exclusion criteria. Results: The study included 105 women with a mean and standard deviation of (23.4 ± 3.8) years old, predominantly heterosexual (84.0%) and bisexual (13.2%). Most of them (93.4%) use contraceptive methods, these being (45.3%) oral contraceptives, (19.8%) hormonal IUDs and (17.0%) condoms. The most used hormonal composition was levonorgestrel (26.4%) and ethinylestradiol (25.5%). Eighty percent of the women are sexually active, 69.3% of them have a steady partner, 42.5% almost always had sex and 33.0% said that sex was always satisfactory. There was good sample adequacy (0.865) and statistical significance (p < 0.0001). Using or not using a contraceptive method showed a difference in the desire, satisfaction and pain domains. However, sexual history questions were the ones that showed the most statistical relevance in relation to the domains. Conclusion: Although further studies are needed to prove the hypothesis that oral contraceptives have a negative impact on female sexual function, it is clear that health professionals are already aware of this possibility and know how to approach it.

Religiosidade e espiritualidade: discursos dos enfermeiros da atenção básica / Religiosity and spirituality: discourses of primary care nurses / Religiosidad y espiritualidad: discursos de enfermeras de atención primaria

Objetivo: Compreender as concepções dos enfermeiros atuantes na Atenção Básica à Saúde, de um município cearense, acerca da religiosidade e espiritualidade. Métodos: Trata-se de uma pesquisa qualitativa, de abordagem descritiva, realizada com de 13 enfermeiros. Para coleta de dados foi utilizada a técnica de entrevista semiestruturada e os dados foram discutidos com base na Análise Categorial Temática. Resultados: Emergiram duas categorias temáticas empíricas. A primeira acerca do entendimento da religiosidade e espiritualidade pelos enfermeiros, onde percebeu-se a dificuldade que os participantes têm em discorrer sobre o tema. A segunda sobre a religiosidade e espiritualidade como constituidoras do ser humano, em que todos os participantes afirmaram que estes são aspectos da construção humana. Conclusão: Apesar da dificuldade de definição dos termos, os enfermeiros compreendem que esses são aspectos inerentes ao ser humano e necessitam ser abordados no contexto da saúde. (AU)

Objetivo: Comprender las concepciones de los enfermeros que trabajan en la atención primaria de salud de un municipio de Ceará sobre la religiosidad y la espiritualidad. Métodos: Se trata de una investigación cualitativa con enfoque descriptivo, realizada con una muestra de 13 enfermeros. Para la recolección de datos se utilizó y discutió la técnica de entrevista semiestructurada con base en el Análisis Categórico Temático. Resultados: Surgieron dos categorías temáticas empíricas. El primero fue sobre la comprensión de los enfermeros sobre la religiosidad y la espiritualidad, donde se notó la dificultad que tienen los participantes para discutir el tema. El segundo sobre la religiosidad y la espiritualidad como constituyentes del ser humano, en el que todos los participantes afirmaron que son aspectos de la construcción humana. Conclusión: A pesar de la dificultad para definir términos, el enfermero comprende que estos son aspectos inherentes al ser humano y deben ser abordados. (AU)

Objective: Understand the conceptions of nurses who work in primary health care in a municipality in Ceará about religiosity and spirituality. Methods: This is a qualitative research with a descriptive approach, carried out with a sample of 13 nurses. For data collection, the semi-structured interview technique was used and discussed based on the Thematic Categorical Analysis. Results: Two empirical thematic categories have emerged. The first is about the nurses' understanding of religiosity and spirituality, where it was noticed the difficulty that the participants have in discussing the theme. The second on religiosity and spirituality as constituting the human being, in which all participants stated that these are aspects of human construction. Conclusion: Despite the difficulty in defining the terms, nurses understand that these are aspects inherent to the human being and need to be addressed. (AU)

Desenvolvimento e validação de material educacional para pacientes com insuficiência cardíaca / Development and validation of educational material for patients with heart failure / Desarrollo y validación de material educativo para pacientes con insuficiencia cardíaca

Objetivo: Desenvolver e validar um folder educativo para uso em pessoas com Insuficiência Cardíaca. Métodos: Estudo metodológico para elaboração de folder educativo e validação por especialistas. Os juízes técnicos foram enfermeiros especialistas em cardiologia, que validaram conteúdo e aparência, e designers gráfico validaram a aparência, estética e a comunicação visual. O Índice de Validade de Conteúdo (IVC) foi calculado, as respostas foram consistentes quando Alfa de Cronbach> 0,60 e o índice de concordância entre avaliadores (IRA) foi calculado. Resultados: Alta concordância entre enfermeiros (IRA = 1), consistência interna quase perfeita (Alfa de Cronbach = 0,84), IVC total e isolado acima de 0,8. A cartilha foi considerada válida. Para os designers gráficos, o IVC geral obteve um valor que garantiu a validade de aparência. Conclusão: A cartilha educativa foi validada pelos juízes e apresenta-se como instrumento para auxiliar no preparo para alta e acompanhamento em longo prazo de pacientes com IC. (AU)

Objective: To develop and validate an educational folder for use in people with Heart Failure. Methods: Study with a methodological approach for the elaboration of an educational folder and validation by experts. Technical specialists were nurses, cardiology specialists, who validated content and appearance; Specialist designers validated appearance, aesthetics and visual communication. The content validity index (IVC) was calculated; responses were consistent when Cronbach's alpha > 0.60 and the inter-rater agreement index (IRA) was calculated. Results: High agreement among nurses (ARI = 1), almost perfect internal consistency (Cronbach's alpha = 0.84), total and isolated CVI above 0.8. The booklet was considered valid. For graphic designers, the overall IVC achieved a value that guaranteed appearance validity. Conclusion: The educational booklet was validated by the judges and is presented as an instrument to assist in the preparation for discharge and long-term follow-up of patients with HF. (AU)

Objetivo: Desarrollar y validar una carpeta educativa para su uso en personas con Insuficiencia Cardíaca. Métodos: Estudio con enfoque metodológico para la elaboración de una carpeta educativa y validación por expertos. Los técnicos especialistas fueron enfermeros, especialistas en cardiología, quienes validaron el contenido y la apariencia; Diseñadores especializados validaron apariencia, estética y comunicación visual. Se calculó el índice de validez de contenido (IVC); las respuestas fueron consistentes cuando se calculó el alfa de Cronbach> 0,60 y el índice de acuerdo entre evaluadores. Resultados: Alto acuerdo entre enfermeras (ARI = 1), consistencia interna casi perfecta (alfa de Cronbach = 0,84), IVC total y aislado por encima de 0,8. El folleto se consideró válido. Para los diseñadores gráficos, el IVC general logró un valor que garantizaba la validez de la apariencia. Conclusion: El folleto educativo fue validado por los jueces y se presenta como un instrumento para ayudar en la preparación para el alta y el seguimiento a largo plazo de los pacientes con IC. (AU)

Pristina longiseta reproduction test: chronic exposure to environmental contaminants.

Aquatic worms are considered a suitable group to evaluate the effects of contaminants on the environment, although one of the main challenges is to use the species of local occurrence. Recently, Pristina longiseta was suggested to be used in acute bioassays. In this context, this study aimed to establish a chronic exposure for ecotoxicological bioassays using the cosmopolitan species of occurrence in Brazilian freshwater P. longiseta. Firstly, we tested three exposure times (4, 7, and 10 days) under the presence or absence of aeration for reproduction outputs. After determining the best configuration (7 days without aeration), we assessed the effects of the chronic exposures using the standardized reference substance potassium chloride (KCl), the antibiotic sulfamethoxazole (SMX), the flame retardant tetrabromobisphenol A (TBBPA), and the sugarcane vinasse. Our results showed suitability for applying the chronic exposure using P. longiseta and indicated the sensitivity of the offspring to KCl (EC50-7d = 0.51 g/L). Sulfamethoxazole and TBBPA caused a significant decrease in the offspring of P. longiseta (EC50-7d = 59.9 µg/L and < 62.5 µg/L, respectively). Sugarcane vinasse showed high toxicity for the species, and 4.26% of vinasse was calculated as EC50-7d. Therefore, the described protocol was successfully applied as an ecotoxicological bioassay to evaluate the effects of environmental contaminants on the reproduction rate of the freshwater worm P. longiseta.

Preditores de mortalidade e tempo médio de sobrevivência dos pacientes críticos / Predictores de mortalidad y tiempo promedio de supervivencia de los pacientes críticos / Predictors of mortality and median survival time of critically ill patients

Resumo Objetivo Analisar os preditores de mortalidade e o tempo médio de sobrevivência dos pacientes internados nas unidades de terapias intensivas. Métodos Coorte prospectiva, realizada no período de agosto de 2018 a julho de 2019, em quatro Unidades de Terapia Intensiva (UTI) de adultos, da rede pública e privada do Estado de Sergipe. Foram incluídos todos os pacientes adultos, desde que possuíssem o tempo de permanência mínima de 24 horas na unidade. O desfecho primário foi o óbito. Os desfechos secundários foram: diálise, lesão por pressão, lesão renal aguda, necessidade de ventilação mecânica invasiva por mais de 48 horas, infecção e o tempo de internação. Resultados Dos 432 pacientes, houve predomínio de óbito em pacientes do sexo masculino, com idade mais avançada e procedentes da unidade de emergência. A presença de insuficiência cardíaca, valores de creatinina >1,5 mg/dL na admissão, diabetes mellitus, doença hepática e tabagismo também tiveram associação com o desfecho óbito. Quanto aos demais preditores, destacaram-se o maior tempo de internação; maiores escores do Sequential Organ Failure Assessment (SOFA), Simplified Acute Phisiology (SAPS 3) e Nursing Activies Score (NAS), além do uso de noradrenalina. O uso do fentanil foi associado ao aumento do tempo de sobrevida e o tempo médio de sobrevivência geral foi 28 dias. Conclusão Os preditores de mortalidade dos pacientes internados em UTI de Sergipe foram o maior tempo de internação; os maiores escores de SOFA, SAPS-3 e NAS; creatinina >1,5mg/dl na admissão; uso de drogas vasopressoras e a necessidade de diálise.

Resumen Objetivo Analizar los predictores de mortalidad y el tiempo promedio de supervivencia de los pacientes internados en unidades de cuidados intensivos. Métodos Cohorte prospectivo, realizado durante el período de agosto de 2018 a julio de 2019, en cuatro Unidades de Cuidados Intensivos (UCI) de adultos, de la red pública y privada del estado de Sergipe. Se incluyeron todos los pacientes adultos, con tiempo de permanencia mínima de 24 horas en la unidad. El criterio principal de valoración fue la defunción. Los criterios secundarios fueron: diálisis, úlcera por presión, lesión renal aguda, necesidad de ventilación mecánica invasiva durante más de 48 horas, infección y el tiempo de internación. Resultados De los 432 pacientes, hubo un predominio de defunciones en pacientes del sexo masculino, con edad más avanzada y procedentes de la unidad de emergencia. La presencia de insuficiencia cardíaca, valores de creatinina >1,5 mg/dL en la admisión, diabetes mellitus, enfermedad hepática y tabaquismo también estuvieron asociados con el desenlace de defunción. Con relación a los demás predictores, se destacaron el mayor tiempo de internación; mayores puntuaciones del Sequential Organ Failure Assessment (SOFA), Simplified Acute Phisiology (SAPS 3) y Nursing Activies Score (NAS), además del uso de noradrenalina. El uso de fentanilo estuvo asociado con el aumento del tiempo de sobrevida y el tiempo promedio de supervivencia general fue de 28 días. Conclusión Los predictores de mortalidad de los pacientes internados en una UCI de Sergipe fueron: el mayor tiempo de internación; los puntajes más altos de SOFA, SAPS-3 y de NAS; creatinina >1,5mg/dl en la admisión; uso de drogas vasoactivas y la necesidad de diálisis.

Abstract Objective To analyze the predictors of mortality and the average survival time of patients hospitalized in Intensive Care Units. Methods This is a prospective cohort, carried out from August 2018 to July 2019, in four adult Intensive Care Units (ICU) from the public and private network of the State of Sergipe. All adult patients were included, provided they had a minimum length of stay of 24 hours in the unit. The primary outcome was death. Secondary outcomes were dialysis, pressure injury, Acute Kidney Injury, need for invasive mechanical ventilation for more than 48 hours, infection, and length of hospital stay. Results Of the 432 patients, there was a predominance of death in male patients, older and coming from the emergency unit. The presence of heart failure, creatinine values >1.5 mg/dL at admission, diabetes mellitus, liver disease and smoking were also associated with the death outcome. As for the other predictors, the longest hospital stay, higher Sequential Organ Failure Assessment (SOFA), Simplified Acute Physiology (SAPS 3) and Nursing Activities Score (NAS) scores, in addition to the use of noradrenaline, stand out. The use of fentanyl was associated with increased survival time and the overall median survival time was 28 days. Conclusion The mortality predictors of patients admitted to the ICU in Sergipe were longer length of stay; the highest SOFA, SAPS-3 and NAS scores; creatinine >1.5mg/dl on admission; use of vasopressor drugs and the need for dialysis.

Are patient volume and care level in teaching hospitals variables affecting clinical outcomes in adult intensive care units?

ABSTRACT Objective To compare the clinical outcomes of patients admitted to the intensive care unit of teaching (HI) and nonteaching (without an academic affiliation; H2) hospitals. Methods In this prospective cohort study, adult patients hospitalized between August 2018 and July 2019, with a minimum length of stay of 24 hours in the intensive care unit, were included. Patients with no essential information in their medical records to evaluate the study outcomes were excluded. Results Overall, 219 patients participated in this study. The clinical and demographic characteristics of patients in H1 and H2 were similar. The most prevalent clinical outcomes were death, need for dialysis, pressure injury, length of hospital stay, mechanical ventilation >48 hours, and infection, all of which were more prevalent in the teaching hospital. Conclusion Worse outcomes were more prevalent in the teaching hospital. There was no difference between the institutions concerning the survival rate of patients as a function of length of hospital stay; however, a difference was observed in intensive care unit admissions.

Implementation of an innovative model of community nursing for older adults based on Buurtzorg principles: a scoping review protocol.

OBJECTIVE: The objective of this review is to map the international evidence on the implementation of the Buurtzorg model of community nursing practice for the care of older adults. We will describe where and how it has been used, and the challenges and facilitators of implementing this model of care. INTRODUCTION: The challenges of aging have mobilized health systems around the world to replace the current facility- and disease-centered care model with integrated patient-centered care models. The Buurtzorg model provides autonomy to nurses, who, in turn, empower patients in need-based and self-reliant care. INCLUSION CRITERIA: We will consider both published and unpublished studies and reports exploring the process of implementing the Buurtzorg community nursing model for the care of older adults (65 years and older) internationally, in all settings. Concepts of interest will include where the model has been used, how the model has been implemented, and what challenges and facilitators were reported. METHODS: We will implement a three-step search strategy to locate both published and unpublished primary studies, theses, dissertations, book chapters, and text and opinion reports using the following databases: MEDLINE, LILACS, Cochrane CENTRAL, CINAHL, Web of Science, Google Scholar, Embase, Scopus, ProQuest Dissertations and Theses Global, and the official Buurtzorg website. We will present the search strategy in a PRISMA flow diagram. Data will be extracted using Excel spreadsheets and then analyzed narratively. Extracted data will be quantitatively pooled in tables using descriptive statistics to synthesize the characteristics of the reports and sample, followed by a qualitative summary of how the Buurtzorg model has been used, and the challenges and facilitators of implementing this care model.

Prevalência e fatores de risco associados ao delirium em uma unidade de terapia intensiva / Prevalencia y factores de riesgo asociados al delirium en una unidad de cuidados intensivos / Prevalence and risk factors associated with delirium at a critical care unit

Resumo Objetivo Identificar a prevalência e os fatores de risco associados ao delirium em pacientes internados em uma unidade de terapia intensiva no nordeste do Brasil. Métodos Estudo transversal realizado entre julho de 2017 e abril de 2018 com 316 pacientes hospitalizados por pelo menos 48h, ≥18 anos, com Richmond Agitation-Sedation Scale ≥ -3. A análise estatística incluiu análise univariada e multivariada; um modelo log-binomial foi utilizado para razões de prevalência ajustadas. Resultados A análise univariada indicou uma prevalência de delirium em 45,9%, meia idade (49,8 ± 17,4 vs. 44,0 ± 17,6, p=0,003) e neurocirurgia (62,5% vs. 26,1%, p<0,001). A contenção física (81,3% vs. 40,9%, p<0,001), alimentação por sonda nasoenteral (85,9% vs. 57,6%, p<0,001) e ventilação mecânica (50,0% vs. 29,2%, p<0,001) foram associadas à prevalência de delirium. Conclusão Idade, contenção física, alimentação por sonda e uso de anticonvulsivantes aumentaram a prevalência de delirium em nossa amostra.

Resumen Objetivo Identificar la prevalencia y los factores de riesgo asociados al delirium en pacientes internados en una unidad de cuidados intensivos en el nordeste de Brasil. Métodos Estudio transversal realizado entre julio de 2017 y abril de 2018 con 316 pacientes hospitalizados por al menos 48 horas, ≥18 años, con Richmond Agitation-Sedation Scale ≥ -3. El análisis estadístico incluyó análisis univariado y multivariado. Se utilizó un modelo log-binomial para razones de prevalencia ajustadas. Resultados El análisis univariado indicó una prevalencia de delirium en el 45,9 %, mediana edad (49,8 ± 17,4 vs. 44,0 ± 17,6, p=0,003) y neurocirugía (62,5 % vs. 26,1 %, p<0,001). La contención física (81,3 % vs. 40,9 %, p<0,001), alimentación por sonda nasoenteral (85,9 % vs. 57,6 %, p<0,001) y ventilación mecánica (50,0 % vs. 29,2 %, p<0,001) fueron factores asociados a la prevalencia de delirium. Conclusión Edad, contención física, alimentación por sonda y uso de anticonvulsivos aumentaron la prevalencia de delirium en nuestra muestra.

Abstract Objective Identify the prevalence and risk factors associated with delirium in patients in a critical care unit in northeastern Brazil. Methods A cross-sectional study that enrolled 316 patients with at least 48h of hospitalization, ≥18 years old, with Richmond Agitation-Sedation Scale ≥ -3, between July 2017 and April 2018. Statistical analysis included univariate and multivariate analysis, we employed a log-binomial model for adjusted prevalence ratios. Results Univariate analysis indicated that delirium was prevalent among 45.9%, middle age (49.8 ± 17.4 vs. 44.0 ± 17.6, p=0.003) and neurosurgery (62.5% vs. 26.1%, p<0.001). Physical restraining (81.3% vs. 40.9%, p<0.001), nasoenteral tube feeding (85.9% vs. 57.6%, p<0.001) and mechanical ventilation (50.0% vs. 29.2%, p<0.001) was associated with prevalence of delirium . Conclusion Age, physical restraint, tube feeding, and the use of anticonvulsants increase the prevalence of delirium in our sample.

Dispersive liquid-liquid microextraction of Cd, Hg and Pb from medicines prior to ICP OES determination according to the United States Pharmacopeia.

A simple, sensitive and matrix-effect free analytical method for simultaneous determination of Cd, Hg and Pb in drug samples (i.e., commercial dosage tablets) by inductively coupled plasma optical emission spectrometry (ICP OES) has been developed. According to the United States Pharmacopeia (USP) Chapter 232, those metals are considered elemental impurities from class 1 and they must be assessed in pharmaceutical production as well as in quality control evaluation. In order to increase the sensitivity of the analysis, dispersive liquid-liquid microextraction (DLLME) was performed and seven factors affecting analyte extraction were optimized by multivariate analysis. A microvolume of analyte enriched phase was directly introduced into the plasma using a multi-nebulizer, providing a high enrichment factor. When compared to conventional ICP OES analysis, DLLME improves the limit of quantitation (LOQ) values on average 40-fold for all analytes. Consequently, LOQ values were significantly lower than their permissible daily exposure limits for oral drugs. Accuracy was evaluated by addition and recovery experiments following USP recommendations in eight commercial drug samples. Recovery and RSD values were within the range of 90-108% and 1-9%, respectively.

Dispersive liquid-liquid microextraction based on deep eutectic solvent for elemental impurities determination in oral and parenteral drugs by inductively coupled plasma optical emission spectrometry.

A simple, fast, sensitive and green pretreatment method for determination of Cd, Co, Hg, Ni, Pb and V in oral and parenteral drug samples using inductively coupled plasma optical emission spectrometry (ICP OES) has been developed. According to United States Pharmacopoeia (USP), those metals must be reported in all pharmaceutical products for quality control evaluation (i.e., elemental impurities from classes 1 and 2A of USP Chapter 232). To improve the analytical capabilities of ICP OES, a dispersive liquid-liquid microextraction (DLLME) has performed using a safe, cheap and biodegradable deep eutectic solvent (DES) as extractant solvent (a mixture of 2:1 M ratio of DL-menthol and decanoic acid). Seven parameters affecting the microextraction efficiency have carefully optimized by multivariate analysis. Under optimized conditions, the DES-based DLLME-ICP OES procedure improved limit of quantitation (LOQ) values on range from 12 to 85-fold and afforded an enrichment factor on average 60-times higher than those obtained to direct ICP OES analysis. Consequently, LOQ values for Cd, Co, Hg, Ni, Pb and V have been on average 10-times lower than target limits recommended for drugs from parenteral route of administration. Trueness has evaluated by addition and recovery experiments following USP recommendations for three oral drug samples in liquid dosage form and three parenteral drugs. Recovery and RSD values have been within the range of 90-109% and 1-6%, respectively. All analytes were below the respectives LOQ values, hence, lower than the limits proposed by USP Chapter 232.

Counting Enchytraeus crypticus Juveniles in Chronic Exposures: An Alternative Method for Ecotoxicity Studies Using Tropical Artificial Soil.

Soil toxicity tests are commonly applied using Enchytraeus crypticus to analyze reproductive outputs. However, the traditional method for counting potworms takes a long time due to the significant number of offspring. This paper compares the conventional total counting of E. crypticus juveniles (M1) and an alternative methodology (M2). The proposed methodology (M2) uses a simple random counting method (1/4) for the partial counting of juveniles and total estimation. Chronic bioassays (21 days of exposure) were performed in tropical artificial soil (TAS) using sugarcane vinasse as a hazardous substance. Comparing the final density of juveniles recorded in M1 and M2, no statistical differences were pointed out in either one. Applying analyses based on effective concentration (EC10 and EC50), no statistical differences were identified there either. The t-test showed that there was no statistical difference between the counting methods (M1 and M2) in each treatment (control and dilutions). Moreover, we ran the Tukey test for M1 and M2 methods separately and observed that 100 % of the vinasse showed a statistical difference compared to the control treatment in both (p ≤ 0.05), affirming that independent of the counting method, the ecotoxicological outputs were similar. Therefore, the proposed alternative is a suitable method for bioassay using. E. crypticus in tropical artificial soil, decreasing to 1/4 the total time required for counting.

Prevalence and factors associated with acute kidney injury in patients in intensive care units.

OBJECTIVES: to identify the prevalence and factors associated with the development of acute kidney injury in critically ill patients. METHODS: a cross-sectional study, conducted from June 2018 to August 2019. The Kidney Disease Improving Global Outcomes was used to classify acute kidney injury. A significant value was set at p<0.05. RESULTS: a total of 212 patients were included, of whom 35.8% evolved into an acute kidney injury. Patients with acute kidney injury had hypertension, higher levels on severity scores and a higher baseline creatinine rate> 1.5 mg/dL, also, when applied logistic regression, were 7 times more likely to develop acute kidney injury, Odds Ratio 7.018. More than half (56.6%) of the patients with acute kidney injury died. Moreover, 26.7% of these patients developed pressure sore. CONCLUSIONS: the prevalence of kidney injury was high (35.8%). The patients who developed it had a higher severity, mortality, and pressure sore index.

Optical coherence tomography angiography: microvascular alterations in diabetic eyes without diabetic retinopathy / Angiografia por tomografia de coerência óptica: alterações microvasculares em olhos diabéticos sem retinopatia diabética

ABSTRACT Purpose: To describe microvascular changes in the maculas of individuals with type 2 diabetes observed on optical coherence tomography angiography (OCTA) images. We compared the maculas of diabetic subjects without diabetic retinopathy with those of healthy subjects and correlated the findings with the clinical profiles of diabetic subjects. Methods: One eye each of 30 patients with diabetes and 30 healthy individuals were examined. The patients with diabetes underwent funduscopy, retinography, and fluorescein angiography to rule out retinopathy. All subjects underwent optical coherence tomography angiography of a macular area (6×6 mm2), and the foveal and parafoveal vascular densities were analyzed in the superficial and deep retinal vascular plexus. The foveal and parafoveal thicknesses, foveal avascular zone of the superficial plexus, and choriocapillaris flow area were also examined. The optical coherence tomography angiography results were compared between the two study groups and correlated with the following parameters: visual acuity, time since diabetes diagnosis, glycemic control, lipid profile, and renal function of patients with diabetes. Results: A minimal increase in the choriocapillaris flow area was observed in the patients with diabetes (mean area, 22.3 ± 4.6 mm2 in controls; 22.6 ± 3.9 mm2 in patients with diabetes) (p=0.017). No significant differences were observed between other optical coherence tomography angiography parameters analyzed in the two groups. Glycosylated hemoglobin and fasting blood glucose levels were significantly negatively correlated with the foveal vascular density of both plexuses; conversely, fasting blood glucose levels were positively correlated with the choriocapillaris flow area (p=0.034). The other clinical parameters were not correlated with the optical coherence tomography angiography findings. Conclusion: Optical coherence tomography angiography may not be the most appropriate tool for detecting preclinical changes in patients with diabetes, moreover, optical coherence tomography angiography; does not replace clinical examinations. Glycemic control should be the primary clinical parameter considered during retinopathy screening. Larger studies are necessary to confirm these findings.

RESUMO Objetivo: Descrever alterações microvasculares na mácula em diabéticos do tipo 2 sem retinopatia diabética e pacientes saudáveis, e correlacionar achados com perfil clínico nos diabéticos. Métodos: Foram incluídos 60 olhos de 30 diabéticos e 30 pacientes saudáveis. Diabéticos realizaram fundoscopia, retinografia® (CR2; Canon Inc., New York, New York, USA) e angiografia fluoresceínica® (TRC-50DXC; Topcon Inc., Tokyo, Japan) para descartar a presença de retinopatia. Os 60 pacientes realizaram a angiografia por tomografia de coerência óptica® (RTVue XR, Avanti, Optovue, Fremont, CA, USA) (área macular: 6 x 6 mm2) e foram analisados densidade vascular total, foveal e parafoveal no plexo capilar superficial e plexo capilar profundo, espessura foveal, espessura parafoveal, área da zona avascular da fóvea no plexo capilar superficial e área de fluxo da coriocapilar. Resultados da angiografia por tomografia de coerência óptica foram comparados entre os 2 grupos e correlacionados com acuidade visual, tempo de diabetes, controle glicêmico, perfil lipídico e função renal nos diabéticos. Resultados: Observou-se aumento mínimo da área de fluxo da coriocapilar nos diabéticos, média das áreas foi de 22,3 ± 4,6 mm2 no grupo controle e 22,6 ± 3,9 mm2 em diabéticos (p=0,017). Não foi observada diferença estatisticamente significante entre outras variáveis da angiografia por tomografia de coerência óptica analisadas nos dois grupos. Hemoglobina glicosilada e glicemia de jejum apresentaram correlação negativa estatisticamente significante com densidade vascular foveal de ambos os plexos e a glicemia de jejum se correlacionou positivamente com área de fluxo da coriocapilar (p=0,034). Outros dados clínicos avaliados não apresentaram correlação com achados da angiografia por tomografia de coerência óptica. Conclusão: Resultados sugerem que a angiografia por tomografia de coerência óptica pode não ser a melhor ferramenta na detecção de alterações pré-clínicas em diabéticos, não substituindo o exame clínico, e corroboram a ideia de que o controle glicêmico deve ser o principal parâmetro clínico a ser considerado na triagem da retinopatia. Estudos com amostras maiores são necessários para confirmar os achados.

Metabolic fitness landscapes predict the evolution of antibiotic resistance.

Bacteria evolve resistance to antibiotics by a multitude of mechanisms. A central, yet unsolved question is how resistance evolution affects cell growth at different drug levels. Here, we develop a fitness model that predicts growth rates of common resistance mutants from their effects on cell metabolism. The model maps metabolic effects of resistance mutations in drug-free environments and under drug challenge; the resulting fitness trade-off defines a Pareto surface of resistance evolution. We predict evolutionary trajectories of growth rates and resistance levels, which characterize Pareto resistance mutations emerging at different drug dosages. We also predict the prevalent resistance mechanism depending on drug and nutrient levels: low-dosage drug defence is mounted by regulation, evolution of distinct metabolic sectors sets in at successive threshold dosages. Evolutionary resistance mechanisms include membrane permeability changes and drug target mutations. These predictions are confirmed by empirical growth inhibition curves and genomic data of Escherichia coli populations. Our results show that resistance evolution, by coupling major metabolic pathways, is strongly intertwined with systems biology and ecology of microbial populations.