Effects of low dose computed tomography (LDCT) on lung cancer screening on incidence and mortality in regions with high tuberculosis prevalence: A systematic review.

BACKGROUND: Lung cancer screening (LCS) using low-dose computed tomography (LDCT) is a strategy for early-stage diagnosis. The implementation of LDCT screening in countries with a high prevalence/incidence of tuberculosis (TB) is controversial. This systematic review and meta-analysis aim to identify whether LCS using LDCT increases early-stage diagnosis and decreases mortality, as well as the false-positive rate, in regions with a high prevalence of TB. METHODS/DESIGN: Studies were identified by searching BVS, PUBMED, EMBASE, and SCOPUS. RCT and cohort studies (CS) that show the effects of LDCT in LC screening on mortality and secondary outcomes were eligible. Two independent reviewers evaluated eligibility and a third judged disagreements. We used the Systematic Review Data Repository (SRDR+) to extract the metadata and record decisions. The analyses were stratified by study design and incidence of TB. We used the Cochrane "Risk of bias" assessment tool. RESULTS: The Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) were used. Thirty-seven papers were included, referring to 22 studies (10 RCTs and 12 cohorts). Few studies were from regions with a high incidence of TB (One RCT and four cohorts). Nonetheless, the evidence is compatible with European and USA studies. RCTs and CS also had consistent results. There is an increase in early-stage (I-II) diagnoses and reduced LC mortality in the LCDT arm compared to the control. Although false-positive rates varied, they stayed within the 20 to 30% range. DISCUSSION: This is the first meta-analysis of LDCT for LCS focused on its benefits in regions with an increased incidence/prevalence of TB. Although the specificity of Lung-RADS was higher in participants without TB sequelae than in those with TB sequelae, our findings point out that the difference does not invalidate implementing LDCT LCS in these regions. TRIAL REGISTRATION: Systematic review registration Systematic review registration PROSPERO CRD42022309581.

Learning Curve for In-Hospital Mortality of Transcatheter Aortic Valve Replacement: Insights from the Brazilian National Registry. / Curva de Aprendizagem da Mortalidade Hospitalar da Substituição da Válvula Aórtica Transcateter: Insights do Registro Nacional Brasileiro.

BACKGROUND: Robust data on the learning curve (LC) of transcatheter aortic valve replacement (TAVR) are lacking in developing countries. OBJECTIVE: To assess TAVR's LC in Brazil over time. METHODS: We analyzed data from the Brazilian TAVR registry from 2008 to 2023. Patients from each center were numbered chronologically in case sequence numbers (CSNs). LC was performed using restricted cubic splines adjusted for EuroSCORE-II and the use of new-generation prostheses. Also, in-hospital outcomes were compared between groups defined according to the level of experience based on the CSN: 1st to 40th (initial-experience), 41st to 80th (early-experience), 81st to 120th (intermediate-experience), and over 121st (high-experience). Additional analysis was performed grouping hospitals according to the number of cases treated before 2014 (>40 and ≤40 procedures). The level of significance adopted was <0.05. RESULTS: A total of 3,194 patients from 25 centers were included. Mean age and EuroSCORE II were 80.7±8.1 years and 7±7.1, respectively. LC analysis demonstrated a drop in adjusted in-hospital mortality after treating 40 patients. A leveling off of the curve was observed after case #118. In-hospital mortality across the groups was 8.6%, 7.7%, 5.9%, and 3.7% for initial-, early-, intermediate-, and high-experience, respectively (p<0.001). High experience independently predicted lower mortality (OR 0.57, p=0.013 vs. initial experience). Low-volume centers before 2014 showed no significant decrease in the likelihood of death with gained experience, whereas high-volume centers had a continuous improvement after case #10. CONCLUSION: A TAVR LC phenomenon was observed for in-hospital mortality in Brazil. This effect was more pronounced in centers that treated their first 40 cases before 2014 than those that reached this milestone after 2014.

FLNA regulates neuronal maturation by modulating RAC1-Cofilin activity in the developing cortex.

Periventricular nodular heterotopia (PNH), the most common brain malformation diagnosed in adulthood, is characterized by the presence of neuronal nodules along the ventricular walls. PNH is mainly associated with mutations in the FLNA gene - encoding an actin-binding protein - and patients often develop epilepsy. However, the molecular mechanisms underlying the neuronal failure still remain elusive. It has been hypothesized that dysfunctional cortical circuitry, rather than ectopic neurons, may explain the clinical manifestations. To address this issue, we depleted FLNA from cortical pyramidal neurons of a conditional Flnaflox/flox mice by timed in utero electroporation of Cre recombinase. We found that FLNA regulates dendritogenesis and spinogenesis thus promoting an appropriate excitatory/inhibitory inputs balance. We demonstrated that FLNA modulates RAC1 and cofilin activity through its interaction with the Rho-GTPase Activating Protein 24 (ARHGAP24). Collectively, we disclose an uncharacterized role of FLNA and provide strong support for neural circuit dysfunction being a consequence of FLNA mutations.

Curva de Aprendizagem da Mortalidade Hospitalar da Substituição da Válvula Aórtica Transcateter: Insights do Registro Nacional Brasileiro / Learning Curve for In-Hospital Mortality of Transcatheter Aortic Valve Replacement: Insights from the Brazilian National Registry

Resumo Fundamento Dados robustos sobre a curva de aprendizagem (LC) da substituição da válvula aórtica transcateter (TAVR) são escassos nos países em desenvolvimento. Objetivo Avaliar a LC da TAVR no Brasil ao longo do tempo. Métodos Analisamos dados do registro brasileiro de TAVR de 2008 a 2023. Pacientes de cada centro foram numerados cronologicamente em número sequencial de caso (NSC). A LC foi realizada usando um spline cúbico restrito ajustado para o EuroSCORE-II e o uso de próteses de nova geração. Ainda, os desfechos hospitalares foram comparados entre grupos definidos de acordo com o nível de experiência, com base no NSC: 1º ao 40º caso (experiência inicial), 41º ao 80º caso (experiência básica), 81º ao 120º caso (experiência intermediária) e 121º caso em diante (experiência alta). Análises adicionais foram conduzidas de acordo com o número de casos tratados antes de 2014 (>40 e ≤40 procedimentos). O nível de significância adotado foi p <0,05. Resultados Foram incluídos 3194 pacientes de 25 centros. A idade média foi 80,7±8,1 anos e o EuroSCORE II médio foi 7±7,1. A análise da LC demonstrou uma queda na mortalidade hospitalar ajustada após o tratamento de 40 pacientes. Um patamar de nivelamento na curva foi observado após o caso 118. A mortalidade hospitalar entre os grupos foi 8,6%, 7,7%, 5,9%, e 3,7% para experiência inicial, básica, intermediária e alta, respectivamente (p<0,001). A experiência alta foi preditora independente de mortalidade mais baixa (OR 0,57, p=0,013 vs. experiência inicial). Centros com baixo volume de casos antes de 2014 não mostraram uma redução significativa na probabilidade de morte com o ganho de experiência, enquanto centros com alto volume de casos antes de 2014 apresentaram uma melhora contínua após o caso de número 10. Conclusão Observou-se um fenômeno de LC para a mortalidade hospitalar do TAVR no Brasil. Esse efeito foi mais pronunciado em centros que trataram seus 40 primeiros casos antes de 2014 que naqueles que o fizeram após 2014.

Abstract Background Robust data on the learning curve (LC) of transcatheter aortic valve replacement (TAVR) are lacking in developing countries. Objective To assess TAVR's LC in Brazil over time. Methods We analyzed data from the Brazilian TAVR registry from 2008 to 2023. Patients from each center were numbered chronologically in case sequence numbers (CSNs). LC was performed using restricted cubic splines adjusted for EuroSCORE-II and the use of new-generation prostheses. Also, in-hospital outcomes were compared between groups defined according to the level of experience based on the CSN: 1st to 40th (initial-experience), 41st to 80th (early-experience), 81st to 120th (intermediate-experience), and over 121st (high-experience). Additional analysis was performed grouping hospitals according to the number of cases treated before 2014 (>40 and ≤40 procedures). The level of significance adopted was <0.05. Results A total of 3,194 patients from 25 centers were included. Mean age and EuroSCORE II were 80.7±8.1 years and 7±7.1, respectively. LC analysis demonstrated a drop in adjusted in-hospital mortality after treating 40 patients. A leveling off of the curve was observed after case #118. In-hospital mortality across the groups was 8.6%, 7.7%, 5.9%, and 3.7% for initial-, early-, intermediate-, and high-experience, respectively (p<0.001). High experience independently predicted lower mortality (OR 0.57, p=0.013 vs. initial experience). Low-volume centers before 2014 showed no significant decrease in the likelihood of death with gained experience, whereas high-volume centers had a continuous improvement after case #10. Conclusion A TAVR LC phenomenon was observed for in-hospital mortality in Brazil. This effect was more pronounced in centers that treated their first 40 cases before 2014 than those that reached this milestone after 2014.

Pathogenic MTOR somatic variant causing focal cortical dysplasia drives hyperexcitability via overactivation of neuronal GluN2C N-methyl-D-aspartate receptors.

OBJECTIVE: Genetic variations in proteins of the mechanistic target of rapamycin (mTOR) pathway cause a spectrum of neurodevelopmental disorders often associated with brain malformations and with intractable epilepsy. The mTORopathies are characterized by hyperactive mTOR pathway and comprise tuberous sclerosis complex (TSC) and focal cortical dysplasia (FCD) type II. How hyperactive mTOR translates into abnormal neuronal activity and hypersynchronous network remains to be better understood. Previously, the role of upregulated GluN2C-containing glutamate-gated N-methyl-D-aspartate receptors (NMDARs) has been demonstrated for germline defects in the TSC genes. Here, we questioned whether this mechanism would expand to other mTORopathies in the different context of a somatic genetic variation of the MTOR protein recurrently found in FCD type II. METHODS: We used a rat model of FCD created by in utero electroporation of neural progenitors of dorsal telencephalon with expression vectors encoding either the wild-type or the pathogenic MTOR variant (p.S2215F). In this mosaic configuration, patch-clamp whole-cell recordings of the electroporated, spiny stellate neurons and extracellular recordings of the electroporated areas were performed in neocortical slices. Selective inhibitors were used to target mTOR activity and GluN2C-mediated currents. RESULTS: Neurons expressing the mutant protein displayed an excessive activation of GluN2C NMDAR-mediated spontaneous excitatory postsynaptic currents. GluN2C-dependent increase in spontaneous spiking activity was detected in the area of electroporated neurons in the mutant condition and was restricted to a critical time window between postnatal days P9 and P20. SIGNIFICANCE: Somatic MTOR pathogenic variant recurrently found in FCD type II resulted in overactivation of GluN2C-mediated neuronal NMDARs in neocortices of rat pups. The related and time-restricted local hyperexcitability was sensitive to subunit GluN2C-specific blockade. Our study suggests that GluN2C-related pathomechanisms might be shared in common by mTOR-related brain disorders.

Smoking, mortality, access to diagnosis, and treatment of lung cancer in Brazil.

INTRODUCTION: Lung cancer (LC) is a relevant public health problem in Brazil and worldwide, given its high incidence and mortality. Thus, the objective of this study is to analyze the distribution of smoking and smoking status according to sociodemographic characteristics and disparities in access, treatment, and mortality due to LC in Brazil in 2013 and 2019. METHOD: Retrospective study of triangulation of national data sources: a) analysis of the distribution of smoking, based on the National Survey of Health (PNS); b) investigation of LC records via Hospital-based Cancer Registry (HCR); and c) distribution of mortality due to LC in the Mortality Information System (SIM). RESULTS: There was a decrease in the percentage of people who had never smoked from 2013 (68.5%) to 2019 (60.2%) and in smoking history (pack-years). This was observed to be greater in men, people of older age groups, and those with less education. Concerning patients registered in the HCR, entry into the healthcare service occurs at the age of 50, and only 19% have never smoked. While smokers in the population are mainly Mixed-race, patients in the HCR are primarily White. As for the initial stage (I and II), it is more common in White people and people who have never smoked. The mortality rate varied from 1.00 for people with higher education to 3.36 for people without education. Furthermore, White people have a mortality rate three times higher than that of Black and mixed-race people. CONCLUSION: This article highlighted relevant sociodemographic disparities in access to LC diagnosis, treatment, and mortality. Therefore, the recommendation is to strengthen the Population-Based Cancer Registry and develop and implement a nationwide LC screening strategy in Brazil since combined prevention and early diagnosis strategies work better in controlling mortality from the disease and continued investment in tobacco prevention and control policies.

Mackerel and Seaweed Burger as a Functional Product for Brain and Cognitive Aging Prevention.

Most world countries are experiencing a remarkable aging process. Meanwhile, 50 million people are affected by Alzheimer's disease (AD) and related dementia and there is an increasing trend in the incidence of these major health problems. In order to address these, the increasing evidence suggesting the protective effect of dietary interventions against cognitive decline during aging may suggest a response to this challenge. There are nutrients with a neuroprotective effect. However, Western diets are poor in healthy n-3 polyunsaturated fatty acids (n-3 PUFAs), such as docosahexaenoic acid (DHA), iodine (I), and other nutrients that may protect against cognitive aging. Given DHA richness in chub mackerel (Scomber colias), high vitamin B9 levels in quinoa (Chenopodium quinoa), and I abundance in the seaweed Saccorhiza polyschides, a functional hamburger rich in these nutrients by using these ingredients was developed and its formulation was optimized in preliminary testing. The effects of culinary treatment (steaming, roasting, and grilling vs. raw) and digestion on bioaccessibility were evaluated. The hamburgers had high levels of n-3 PUFAs in the range of 42.0-46.4% and low levels of n-6 PUFAs (6.6-6.9%), resulting in high n-3/n-6 ratios (>6). Bioaccessibility studies showed that the hamburgers could provide the daily requirements of eicosapentaenoic acid (EPA) + DHA with 19.6 g raw, 18.6 g steamed, 18.9 g roasted, or 15.1 g grilled hamburgers. Polyphenol enrichment by the seaweed and antioxidant activity were limited. The hamburgers contained high levels of Se and I at 48-61 µg/100 g ww and 221-255 µg/100 g ww, respectively. Selenium (Se) and I bioaccessibility levels were 70-85% and 57-70%, respectively, which can be considered high levels. Nonetheless, for reaching dietary requirements, considering the influence of culinary treatment and bioaccessibility, 152.2-184.2 g would be necessary to ensure daily Se requirements and 92.0-118.1 g for I needs.

Compilation of Evidence Supporting the Role of a T Helper 2 Reaction in the Pathogenesis of Acute Appendicitis.

Despite being the most common abdominal surgical emergency, the cause of acute appendicitis (AA) remains unclear, since in recent decades little progress has been made regarding its etiology. Obstruction of the appendicular lumen has been traditionally presented as the initial event of AA; however, this is often the exception rather than the rule, as experimental data suggest that obstruction is not an important causal factor in AA, despite possibly occurring as a consequence of the inflammatory process. Type I hypersensitivity reaction has been extensively studied, involving Th2 lymphocytes, and cytokines such as IL-4, IL-5, IL-9 and IL-13, which have well-defined functions, such as a positive-feedback effect on Th0 for differentiating into Th2 cells, recruitment of eosinophils and the release of eosinophilic proteins and the production of IgE with the activation of mast cells, with the release of proteins from their granules. Cytotoxic activity and tissue damage will be responsible for the clinical manifestation of the allergy. AA histological features are similar to those found in allergic reactions like asthma. The intestine has all the components for an allergic immune response. It has contact with hundreds of antigens daily, most of them harmless, but some can potentially induce an allergic response. In recent years, researchers have been trying to assess if allergy is a component of AA, with their latest advances in the understanding of AA as a Th2 reaction shown by the authors of this article.

Evaluation of deprescription by general practitioners in elderly people with different levels of dependence: cross-sectional study.

BACKGROUND: Polypharmacy is easily achieved in elderly patients with multimorbidity and it is associated with a higher risk of potentially inappropriate medication use and worse health outcomes. Studies have shown that deprescription is safe, however, some barriers have been identified. The aim of this study was to analyse Portuguese General Practitioners (GP) deprescription's attitudes using clinical vignettes. METHODS: Cross-sectional study using an online survey with 3 sections: demographic and professional characterization; two clinical vignettes with an elderly patient with multimorbidity and polypharmacy in which the dependency level varies; barriers and factors influencing deprescription. Frequencies, means, and standard deviations were calculated to describe the GPs. Analysis of the deprescription attitude, globally and for each drug, for each clinical vignette applying the McNeemar's test. RESULTS: A sample of 396 GP was obtained with a mean age of 38 years, most of them female. A statistically significant difference (p < 0.01) was observed in deprescribing according to the patient dependency level, with more GPs (80.4% versus 75.3%) deprescribing in the most dependent patient. A statistically significant difference was found for all drugs except for antihypertensive drugs. All medications were deprescribed more often in dependent patients except for anti-dementia drugs. More than 70% of the participants considered life expectancy and quality of life as "very important" factors for deprescription and more than 90% classified the existence of guidelines and the risks and benefits of medication as "very important" or "important". In the open question, the factors most reported by the GP were those related to the patient (52,9%). CONCLUSIONS: This is the largest study on this topic carried out in Portugal using clinical vignettes, with a representative sample of Portuguese GP. The level of dependence significatively influenced the deprescription attitude of Portuguese GPs. The majority of the GPs classified the quality of life, life expectancies, potential negative effects and the existence of guidelines as "very important" or "important" while deprescribing. It is important to develop and test deprescribing in real life studies to analyze if these attitudes are the same in daily practice.

Influence of cooking methods and storage time on colour, texture, and fatty acid profile of a novel fish burger for the prevention of cognitive decline.

Western diets are poor in healthy n-3 polyunsaturated fatty acids (n-3 PUFA), namely eicosapentaenoic (EPA) and docosahexaenoic acid (DHA), iodine (I), and other nutrients that may protect against cognitive ageing. Given DHA richness in chub mackerel (Scomber colias), high vitamin B9 levels in quinoa (Chenopodium quinoa), and I abundance in the seaweed Saccorhiza polyschides, a functional hamburger rich in these nutrients by using these ingredients was developed. This research focused on the factors affecting its quality by examining the impact of cooking (steaming at 100 °C, roasting at 180 °C, grilling at 180 °C) and storage time (after 4 and 6 months at -20 °C) upon the product's properties. Cooking treatments were found to influence the burger's colour and texture, whereas storage duration impacted FA levels and the polyene index. Cooked burgers presented lighter (L*, 45.1-55.0 vs 36.9 ± 2.4) and more yellow colouration (b*, 15.8-17.8 vs 13.6 ± 1.0) than raw burgers. Cooked burgers also exhibited higher textural values across various parameters than their raw versions. Grilled burgers (excluding initial time) were firmer (50.0 ± 5.1 N) than those cooked otherwise (37.0-39.9 N). Regarding FA levels, a decrease in DHA was recorded after four months (21.8-23.0% vs 26.4-30.6%). The polyene index followed a similar trajectory, declining from 2.6 to 3.6 initially to 1.8-1.9 in the fourth month. Hence, the studied mackerel burger could be a promising source of EPA, DHA, and other n-3 PUFAs in human diets, optimally with a frozen storage duration of fewer than four months to preserve nutritional integrity.

Tryptase in Acute Appendicitis: Unveiling Allergic Connections through Compelling Evidence.

The aetiology of acute appendicitis (AA), the most frequent abdominal surgical emergency, is still unclarified. Recent epidemiologic, clinical and laboratorial data point to an allergic component in the pathophysiology of AA. Mastocytes participate in the Th2 immune response, releasing inflammatory mediators from their granules upon stimulation by IgE-specific antigens. Among the well-known mediators are histamine, serotonin and tryptase, which are responsible for the clinical manifestations of allergies. We conducted a prospective single-centre study to measure histamine and serotonin (commercial ELISA kit) and tryptase (ImmunoCAP System) concentrations in appendicular lavage fluid (ALF) and serum. Consecutive patients presenting to the emergency department with a clinical diagnosis of AA were enrolled: 22 patients with phlegmonous AA and 24 with gangrenous AA The control group was composed of 14 patients referred for colectomy for colon malignancy. Appendectomy was performed during colectomy. Tryptase levels were strikingly different between histological groups, both in ALF and serum (p < 0.001); ALF levels were higher than serum levels. Tryptase concentrations in ALF were 109 times higher in phlegmonous AA (APA) (796.8 (194.1-980.5) pg/mL) and 114 times higher in gangrenous AA (AGA) (837.4 (272.6-1075.1) pg/mL) than in the control group (7.3 (4.5-10.3) pg/mL. For the diagnosis of AA, the discriminative power of serum tryptase concentration was good (AUC = 0.825), but discriminative power was weak (AUC = 0.559) for the differential diagnosis between APA and AGA. Mastocytes are involved in AA during clinical presentations of both phlegmonous and gangrenous appendicitis, and no significant differences in concentration were found. No differences were found in serum and ALF concentrations of histamine and serotonin between histological groups. Due to their short half-lives, these might have elapsed by the time the samples were collected. In future research, these determinations should be made immediately after appendectomy. Our findings confirm the hypersensitivity type I reaction as an event occurring in the pathogenesis of AA: tryptase levels in ALF and serum were higher among patients with AA when compared to the control group, which is in line with a Th2 immune response and supports the concept of the presence of an allergic reaction in the pathogenesis of acute appendicitis. Our results, if confirmed, may have clinical implications for the treatment of AA.

Manifestation and sociodemographic microdata of Brazil's Unified Health System Ombudsman.

OBJECTIVES: This article presents the process of extraction and treatment of two datasets from the General Ombudsman of the Brazilian Unified Health System (OUVSUS). The resulting datasets allow the analysis of manifestation characteristics and sociodemographic profile of the citizens that performed these manifestations. DATA DESCRIPTION: The first dataset depicts the characteristics of the manifestations registered by the General Ombudsman. Each row represents an individual manifestation and contains information such as the registration date, classification, input channel, and subject, among others. The second dataset is constituted of sociodemographic information for each citizen that performed a manifestation, and characteristics such as sexual orientation, race, age, and geographic location of the citizen are presented, among others.

Feasibility and effectiveness of a two-tiered intervention involving training and a new consultation model for patients with palliative care needs in primary care: A before-after study.

BACKGROUND: Evidence suggests that involving General Practitioners in the care of patients with palliative care needs may improve patient outcomes. AIM: To evaluate whether a two-tiered intervention involving training in palliative care and a new consultation model in primary care for patients with palliative care needs is feasible and could reduce patients' symptom burden. DESIGN: Before-after study including an internal pilot. SETTING/PARTICIPANTS: Nine general practitioners working in a health region in Portugal and 53 patients with palliative care needs from their patient lists were recruited. General Practitioners received training in palliative care and used a new primary palliative care consultation model, with medical consultations every 3 weeks for 12 weeks. The primary outcome was physical symptom burden, self-reported using the Integrated Palliative care Outcome Scale (IPOS) patient version (min.0-max.1000). Secondary outcomes included emotional symptoms (min.0-max.400) and communication/practical issues (min.0-max.300). RESULTS: Of the 35/53 patients completed the 12-week intervention (mean age 72.53 years, SD = 13.45; 54.7% female). All had advanced disease: one third had cancer (n = 13), one third had congestive heart failure (n = 12); others had chronic kidney disease and chronic obstructive pulmonary disease. After the 12 weeks of intervention, there was a reduction in physical symptom burden [mean difference from baseline of 71.42 (95%CI 37.01-105.85) with a medium-large effect size (0.71], and in emotional symptom burden [mean difference 42.86 (95%CI 16.14-69.58), with a medium effect size (0.55)]. No difference was found for communication/practical issues. CONCLUSIONS: Our intervention can be effective in reducing patients' physical and emotional symptoms. TRIAL REGISTRATION: ClinicalTrials.gov ID - NCT05244590. Registration: 14th February 2022.

Conversion of a classical microbiology laboratory to a total automation laboratory enhanced by the application of lean principles.

Laboratory automation in microbiology improves productivity and reduces sample turnaround times (TATs). However, its full potential can be unlocked through the optimization of workflows by adopting lean principles. This study aimed to explore the relative impact of laboratory automation and continuous improvement events (CIEs) on productivity and TATs. Laboratory automation took place in November 2020 and consisted of the introduction of WASPLab and VITEK MS systems. CIEs were run in May and September 2021. Before the conversion, the laboratory processed about ~492 samples on weekdays and had 10 full-time equivalent (FTE) staff for a productivity of 49 samples/FTE/day. In March 2021, after laboratory automation, the caseload went up to ~621 while the FTEs decreased to 8.5, accounting for productivity improvement to 73 samples/FTE/day. The hypothetical productivity went up to 110 samples/FTE/day following CIEs, meaning that the laboratory could at that point deal with a caseload increase to ~935 with unchanged FTEs. Laboratory conversion also led to an improvement in TATs for all sample types. For vaginal swabs and urine samples, median TATs decreased from 70.3 h [interquartile range (IQR): 63.5-93.1] and 73.7 h (IQR: 35.6-50.7) to 48.2 h (IQR: 44.8-67.7) and 40.0 h (IQR: 35.6-50.7), respectively. Automation alone was responsible for 37.2% and 75.8% of TAT reduction, respectively, while the remaining reduction of 62.8% and 24.2%, respectively, was achieved due to CIEs. The laboratory reached productivity and TAT goals predefined by the management after CIEs. In conclusion, automation substantially improved productivity and TATs, while the subsequent implementation of lean management further unlocked the potential of laboratory automation.IMPORTANCEIn this study, we combined total laboratory automation with lean management to show that appropriate laboratory work organization enhanced the benefit of the automation and substantially contributed to productivity improvements. Globally, the rapid availability of accurate results in the setting of a clinical microbiology laboratory is part of patient-centered approaches to treat infections and helps the implementation of antibiotic stewardship programs backed by the World Health Organization. Locally, from the point of view of laboratory management, it is important to find ways of maximizing the benefits of the use of technology, as total laboratory automation is an expensive investment.

[Palliative Care Needs in Primary Health Care: Characteristics of Patients with Advanced Cancer and Dementia]. / Necessidades Paliativas em Cuidados de Saúde Primários: Características dos Doentes com Neoplasia e Demência Avançadas.

INTRODUCTION: The increase in life expectancy brought a higher prevalence of chronic diseases, with an emphasis on those who reached advanced stages and required palliative care. We aimed to characterize patients diagnosed with advanced neoplasms and/or dementia accompanied in primary health care and to test the sensitivity of two tools for identifying patients with palliative needs. METHODS: We recruited three voluntary family physicians who provided data relative to 623 patients with active codification for neoplasm and/or dementia on the MIM@UF platform. We defined 'patient with palliative needs' as any patient with this codification in advanced stadium and made their clinical and sociodemographic characterization. Assuming the existence of advanced-stage disease as the gold standard, we calculated and compared the sensitivities of each of the tools under study: the surprise question, the question 'do you think this patient has palliative needs?' and an instrument that corresponded to identification by at least one of the questions. RESULTS: Among the analyzed data, there were 559 (89.7%) active codifications of neoplasm and 64 (10.3%) of dementia; the prevalence of advanced neoplasm and dementia was 1.0% in the studied sample. The subgroup of patients with advanced dementia showed female sex predominance, an older age, and less access to health care. In both subgroups there was a scarcity of data related to education and income, and we observed polypharmacotherapy and multimorbidity. The sensitivity of the surprise question was 33.3% for neoplasia and 69.3% for dementia; of the new tool 50.0% for neoplasia and 92.3% for dementia; and, when used together, 55.6% for neoplasia and 92.3% for dementia. CONCLUSION: Our results help characterize two subpopulations of patients in need of palliative care and advance with a possible tool for their identification, to be confirmed in a representative sample.

Introdução: O aumento da esperança de vida trouxe maior prevalência de doenças crónicas, merecendo destaque as que atingem estádios avançados e que requerem cuidados paliativos. Pretendeu-se caracterizar os doentes com diagnóstico de neoplasia e/ou demência em estádio avançado, acompanhados em cuidados de saúde primários, e testar a sensibilidade de duas ferramentas para identificação de doentes com necessidades paliativas. Métodos: Recrutámos três médicos de família voluntários que forneceram dados relativos a 623 doentes com codificação ativa de neoplasia e/ou demência na plataforma MIM@UF. Definimos como 'doente com necessidades paliativas' todo o doente com doença em estádio avançado, e fizemos a sua caracterização clínica e sociodemográfica. Assumindo como gold standard a existência de doença em estádio avançado, calculámos e comparámos as sensibilidades de cada uma das ferramentas em estudo: a questão surpresa, a questão 'acha que este doente tem necessidades paliativas?' e um instrumento que correspondesse a identificação por pelo menos uma das questões. Resultados: De entre os dados analisados, existiram 559 (89,7%) codificações ativas de neoplasia e 64 (10,3%) de demência; a prevalência de neoplasia e demência avançadas foi de 1,0% na amostra estudada. O subgrupo de doentes com demência avançada mostrou predomínio do sexo feminino, idade superior e menor acesso a cuidados de saúde. Em ambos os subgrupos houve escassez de dados relativos à escolaridade e rendimento e observámos polifarmacoterapia e multimorbilidade. A sensibilidade da questão surpresa foi de 33,3% para neoplasia e 69,3% para demência; da nova ferramenta de 50,0% para neoplasia e 92,3% para demência; e, quando usadas em conjunto, de 55,6% para neoplasia e 92,3% para demência. Conclusão: Estes resultados ajudam a caracterizar duas subpopulações de doentes com necessidade de cuidados paliativos e avançam com uma possível ferramenta para sua identificação, a confirmar a sua utilidade numa amostra representativa.

Grey matter heterotopia subtypes show specific morpho-electric signatures and network dynamics.

Grey matter heterotopia (GMH) are neurodevelopmental disorders associated with abnormal cortical function and epilepsy. Subcortical band heterotopia (SBH) and periventricular nodular heterotopia (PVNH) are two well-recognized GMH subtypes in which neurons are misplaced, either forming nodules lining the ventricles in PVNH, or forming bands in the white matter in SBH. Although both PVNH and SBH are commonly associated with epilepsy, it is unclear whether these two GMH subtypes differ in terms of pathological consequences or, on the contrary, share common altered mechanisms. Here, we studied two robust preclinical models of SBH and PVNH, and performed a systematic comparative assessment of the physiological and morphological diversity of heterotopia neurons, as well as the dynamics of epileptiform activity and input connectivity. We uncovered a complex set of altered properties, including both common and distinct physiological and morphological features across heterotopia subtypes, and associated with specific dynamics of epileptiform activity. Taken together, these results suggest that pro-epileptic circuits in GMH are, at least in part, composed of neurons with distinct, subtype-specific, physiological and morphological properties depending on the heterotopia subtype. Our work supports the notion that GMH represent a complex set of disorders, associating both shared and diverging pathological consequences, and contributing to forming epileptogenic networks with specific properties. A deeper understanding of these properties may help to refine current GMH classification schemes by identifying morpho-electric signatures of GMH subtypes, to potentially inform new treatment strategies.

Increased Incidence of TdT-negative Pre-B Acute Lymphoblastic Leukemia Associated With Poor Prognostic Features Among Mexican Children in Central Mexico.

Mexican and Hispanic children in Mexico and the United States, respectively, have the highest incidence and worst outcomes of pre-B acute lymphoblastic leukemia (ALL) compared with other racial/ethnic groups. Terminal deoxynucleotidyl transferase (TdT) is an intranuclear DNA polymerase normally present on immature lymphocytes (TdT-positive) and distinguishes ALL from mature lymphoid malignancies. We performed a multisite retrospective study to determine the incidence of TdT-negative precursor B-cell acute lymphoblastic leukemia (pre-B ALL) among Mexican, Caucasian, and US-born Hispanic children to correlate TdT expression with patient characteristics and known prognostic factors. Fisher exact test was performed for categorical variables and the Wilcoxon rank-sum test was used for continuous variables. TdT-negative pre-B ALL was most frequently identified in patients with National Cancer Institute high-risk disease ( P =0.014). TdT-negative expression was also most frequently associated with hypodiploid pre-B ALL ( P =0.001) and KMT2A gene rearrangement ( P =0.0012). Mexican children had the highest incidence of TdT-negative ALL compared with Caucasians and US Hispanics ( P <0.001), with an increased incidence of poor prognostic features as well. This study demonstrates significant differences in TdT-negative expression, genomic alterations, and leukemic ploidy based on race and ethnicity.

Smoking, mortality, access to diagnosis, and treatment of lung cancer in Brazil / Tabagismo, mortalidade, acesso ao diagnóstico e tratamento de câncer de pulmão no Brasil

ABSTRACT INTRODUCTION Lung cancer (LC) is a relevant public health problem in Brazil and worldwide, given its high incidence and mortality. Thus, the objective of this study is to analyze the distribution of smoking and smoking status according to sociodemographic characteristics and disparities in access, treatment, and mortality due to LC in Brazil in 2013 and 2019. METHOD Retrospective study of triangulation of national data sources: a) analysis of the distribution of smoking, based on the National Survey of Health (PNS); b) investigation of LC records via Hospital-based Cancer Registry (HCR); and c) distribution of mortality due to LC in the Mortality Information System (SIM). RESULTS There was a decrease in the percentage of people who had never smoked from 2013 (68.5%) to 2019 (60.2%) and in smoking history (pack-years). This was observed to be greater in men, people of older age groups, and those with less education. Concerning patients registered in the HCR, entry into the healthcare service occurs at the age of 50, and only 19% have never smoked. While smokers in the population are mainly Mixed-race, patients in the HCR are primarily White. As for the initial stage (I and II), it is more common in White people and people who have never smoked. The mortality rate varied from 1.00 for people with higher education to 3.36 for people without education. Furthermore, White people have a mortality rate three times higher than that of Black and mixed-race people. CONCLUSION This article highlighted relevant sociodemographic disparities in access to LC diagnosis, treatment, and mortality. Therefore, the recommendation is to strengthen the Population-Based Cancer Registry and develop and implement a nationwide LC screening strategy in Brazil since combined prevention and early diagnosis strategies work better in controlling mortality from the disease and continued investment in tobacco prevention and control policies.

RESUMO INTRODUÇÃO O câncer de pulmão (CP) é um relevante problema de saúde pública no Brasil e no mundo, dada sua alta incidência e mortalidade. Assim, objetiva-se analisar a distribuição do tabagismo e da carga tabágica segundo características sociodemográficas e disparidades no acesso, no tratamento e na mortalidade por CP no Brasil, em 2013 e 2019. MÉTODO Estudo retrospectivo de triangulação de fontes de dados de abrangência nacional: a) análise da distribuição do tabagismo, baseada na Pesquisa Nacional de Saúde (PNS); b) investigação dos registros de CP, via Registros Hospitalares de Câncer (RHC); e c) distribuição da mortalidade por CP, no Sistema de Informação sobre Mortalidade (SIM). RESULTADOS Verificou-se redução do percentual de pessoas que nunca fumaram de 2013 (68,5%) para 2019 (60,2%), assim como da carga tabágica (anos-maço). Esta foi observada maior em homens em pessoas de faixas etárias mais avançadas e de menor escolaridade. Em relação aos pacientes registrados no RHC, a entrada no serviço de saúde se dá a partir de 50 anos, e apenas 19% nunca fumaram. Ao passo que os fumantes na população são majoritariamente pardos, os pacientes no RHC são em maioria brancos. Quanto ao estadiamento inicial (I e II), é mais frequente em pessoas brancas e que nunca fumaram. A taxa de mortalidade apresentou variação de 1,00, para pessoas com ensino superior, a 3,36, entre pessoas sem instrução, assim como pessoas brancas têm uma taxa de mortalidade três vezes maior que a de pessoas negras e pardas. CONCLUSÃO Este artigo apontou relevantes disparidades sociodemográficas no acesso ao diagnóstico, tratamento e mortalidade do CP. Assim, recomenda-se: fortalecer o Registro de Câncer de Base Populacional; desenvolver e implementar estratégia de screening de CP no Brasil, uma vez que a realização de estratégias de prevenção e diagnóstico precoce combinadas funcionam melhor no controle da mortalidade pela doença; e investimento contínuo nas políticas de prevenção e controle do tabagismo.

Non-pharmacological interventions in primary care to improve the quality of life of older patients with palliative care needs: a systematic review of randomised controlled trials.

OBJECTIVES: Our systematic review aimed to summarise non-pharmacological interventions applicable in primary care that improve the quality of life of older patients with palliative care needs. DESIGN: Systematic review. PRIMARY AND SECONDARY OUTCOME MEASURES: The primary outcome was patients' quality of life. Secondary outcomes were symptoms relief and patients' well-being measures. METHODS AND ANALYSIS: We searched MEDLINE, EMBASE, PsycINFO, Cochrane and CINAHL up to October 2022 for randomised controlled trials (RCTs). We also handsearched abstract books of relevant congresses and scientific meetings in the last 5 years. Screening, data extraction and quality evaluation (Cochrane risk-of-bias (RoB) V.2.0 tool and Grading of Recommendations, Assessment, Development and Evaluations (GRADE)) were done independently by two reviewers, with disagreements solved by a third reviewer. Findings were narratively synthesised. RESULTS: We identified 4 RCTs, including 268 patients. One study used a broad criteria of palliative care needs ('progressive, life-threatening disease'), two studies focused on advanced cancer and one study on heart failure. The non-pharmacological interventions evaluated were advance care planning conducted by general practitioners (GPs); social worker-aided palliative care; online primary palliative care training for GPs and spiritual history taking by nurses and GPs. No intervention showed a statistically significant impact on quality of life and the evidence was low according to GRADE. CONCLUSION: The results highlight a dearth of evidence on what non-pharmacological interventions can be effectively done in primary care to improve the quality of life of older persons with palliative care needs. The results should be interpreted with caution, as the search more comprehensively covers interventions delivered by GPs. PROSPERO REGISTRATION NUMBER: CRD42020154216.

Dataset on infant mortality rates in Brazil.

OBJECTIVES: Surveillance of infant and fetal deaths is of paramount importance in thinking about government strategies to reduce these rates, provide greater visibility of these mortality figures in the country, enable the adoption of prevention measures, as well as contribute to a better record of deaths. DATA DESCRIPTION: The dataset comprises fetal, neonatal, early neonatal, late neonatal, and perinatal Mortality Rates of Brazilian municipalities with their respective information, between 2010 to 2020, aggregated by epidemiological week.