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104 result(s) for "de Barros Carvalho, Maria Dalva"
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Out-of-Hospital Cardiac Arrest Ambulance Delay Zones and AED Placement in a Southern Brazilian City
Out-of-hospital cardiac arrests (OHCAs) have high mortality rates, worsened by limited access to automated external defibrillators (AEDs). This study analyzed OHCA response times, identified areas with prolonged ambulance travel times, and proposed optimal AED locations in a medium-sized city in southern Brazil. Data from 278 non-traumatic OHCA cases (2019–2022) in patients over 18 years old, with ambulance response times under 20 min, were included. Spatial survival analysis assessed the probability of exceeding the recommended 5-min (300 s) ambulance response time. The maximal covering location problem identified 100 strategic AED sites within a 150-s reach for bystanders. AED and ambulance travel times were compared using the Wilcoxon test (p < 0.01). Defibrillation occurred in 89 cases (31.01%), and bystander CPR was performed in 149 cases (51.92%). Despite these efforts, 77% of patients died. The median ambulance response time was 11.63 min, exceeding 5 min in most cases, particularly at peak times like 11 a.m. AED placement in selected locations could cover 76% of OHCA occurrences, with a mean AED travel time of 320 s compared to 709 s for ambulances. Strategic AED placement could enhance early defibrillation and improve survival outcomes.
Healthcare Workers in Brazil during the COVID-19 Pandemic
Brazil is in a critical situation due to the COVID-19 pandemic. Healthcare workers that are in the front line face challenges with a shortage of personal protective equipment, high risk of contamination, low adherence to the social distancing measures by the population, low coronavirus testing with underestimation of cases, and also financial concerns due to the economic crisis in a developing country. This study compared the impact of COVID-19 pandemic among three categories of healthcare workers in Brazil: physicians, nurses, and dentists, about workload, income, protection, training, feelings, behavior, and level of concern and anxiety. The sample was randomly selected and a Google Forms questionnaire was sent by WhatsApp messenger. The survey comprised questions about jobs, income, workload, PPE, training for COVID-19 patient care, behavior and feelings during the pandemic. The number of jobs reduced for all healthcare workers in Brazil during the pandemic, but significantly more for dentists. The workload and income reduced to all healthcare workers. Most healthcare workers did not receive proper training for treating COVID-19 infected patients. Physicians and nurses were feeling more tired than usual. Most of the healthcare workers in all groups reported difficulties in sleeping during the pandemic. The healthcare workers reported a significant impact of COVID-19 pandemic in their income, workload and anxiety, with differences among physicians, nurses and dentists.
Factors associated with vaccination against Covid-19 in pregnant and hospitalized postpartum women: A retrospective cohort study
To analyze the characteristics associated with vaccination against Covid-19 in pregnant and postpartum women with Severe Acute Respiratory Syndrome in Brazil and to investigate a possible association between vaccination and the clinical course and outcome of the disease. Retrospective cohort study of hospitalized pregnant and postpartum women diagnosed with Severe Acute Respiratory Syndrome (SARS) by SARS-CoV-2, presenting onset of signs and symptoms between May and October 2021. Secondary data were used, available in the Influenza Epidemiological Surveillance Information System (SIVEP-Gripe). Data were analyzed using the SPSS statistical program, medians were applied to present continuous variables and frequencies, and proportions were calculated for categorical variables, using logistic and multivariate regression analysis. The final study population included 3,585 pregnant and postpartum women, of whom 596 (16.6) were vaccinated: 443 (74.3%) received one dose and 153 (25.7%) received two doses. They were factors associated with non-vaccination against Covid-19 age ≤ 19 anos (OR: 2.57; IC95% 1.40;4.71), non-white women (OR: 1.34; IC95% 1.07;1.67) and those who required ventilatory support (OR: 1.51; IC95% 1.19;1.90) and invasive ventilation (OR: 2.05; IC95% 1.37;3.08). On the other hand, vaccination was associated with advanced maternal age (OR: 0.60; IC95% 0.48;0.76), presence of comorbidities (OR: 0.57; IC95% 0.45;0.72) and loss of taste (OR: 0.63; IC95% 0.48;0.82). Demographic, ethnic-racial and clinical characteristics were associated with the vaccination status of pregnant and postpartum women with SARS by SARS-CoV-2 in Brazil. Vaccination against Covid-19 in the obstetric population has already shown positive results in the evolution of severe cases, which reiterates its importance. It is essential that health services advance vaccination against Covid-19 in the obstetric population, especially adolescentes and non-white women.
Anaplastic lymphoma associated with breast implants—Early diagnosis and treatment
Anaplastic large cell lymphoma associated with breast implants is a relatively new disease that deserves attention from the academic community. Brazil figures as one of the protagonists in plastic surgery, however publications are insufficient and very few cases are reported in comparison to other countries. It is a disease with excellent prognosis when diagnosed early and treated effectively, but for this to happen, it is essential that health care professionals and the patient understand its pathology. We reported two cases in a small town during a short period of time. In both cases reported by this study, the patients presented late seroma, associated with pain as a clinical presentation, at 13 and 9 years after the placement of silicone implants with textured polyurethane surfaces. After the procedure, the patients were screened for cancer. Further research with more robust samples is still needed to fully determine the risks and benefits of using textured versus smooth implants.
Predictors of violence against health professionals during the COVID-19 pandemic in Brazil: A cross-sectional study
The increase in violence against health professionals in the COVID-19 pandemic makes it necessary to identify the predictors of violence, in order to prevent these events from happening. Evaluating the prevalence and analyzing the variables involved in the occurrence of violence against health professionals during the COVID-19 pandemic in Brazil. This is a cross-sectional study conducted online involving Brazilian health professionals during the COVID-19 pandemic. The data were collected through a structured questionnaire (Google Online Form) sent to health professionals on social networks and analyzed through logistic regression by using sociodemographic variables. The set of grouped variables was assigned to the final model when p <0.05. A network was built using the Mixed Graph Models (MGM) approach. A centrality measurement chart was constructed to determine which nodes have the greatest influence, strength and connectivity between the nodes around them. The predictors of violence in the adjusted regression model were the following: being a nursing technician / assistant; having been working for less than 20 years; working for over 37 hours a week; having suffered violence before the pandemic; having been contaminated with COVID-19; working in direct contact with patients infected by the virus; and having family members who have suffered violence. The network created with professionals who suffered violence demonstrated that the aggressions occurred mainly in the workplace, with an indication of psycho-verbal violence. In cases in which the aggressors were close people, aggressions were non-verbal and happened both in public and private places. The assaults practiced by strangers occurred in public places. Violence against health professionals occurs implicitly and explicitly, with consequences that can affect both their psychosocial well-being and the assistance given to their patients and families.
Effects of Thymol and Carvacrol, Constituents of Thymus vulgaris L. Essential Oil, on the Inflammatory Response
Thyme (Thymus vulgaris L., Lamiaceae) is an aromatic and medicinal plant that has been used in folk medicine, phytopharmaceutical preparations, food preservatives, and as an aromatic ingredient. The effect of Thymus vulgaris essential oil (TEO) and its isolated constituents thymol and cavacrol (CVL) were studied in the following experimental models: ear edema, carrageenan-induced pleurisy, and chemotaxis in vitro. In the pleurisy model, TEO, CVL, and thymol significantly inhibited inflammatory edema. However, only TEO and CVL inhibited leukocyte migration. In the in vitro chemotaxis experiment, CVL inhibited leukocyte migration, whereas thymol exerted a potent chemoattractant effect. In the ear edema model, CVL (10 mg/ear), applied topically, reduced edema formation, exerting a topical anti-inflammatory effect. Thymol did not reduce edema formation but rather presented an irritative response, probably dependent on histamine and prostanoid release. Our data suggest that the antiinflammatory effects of TEO and CVL are attributable to the inhibition of inflammatory edema and leukocyte migration.
Spatiotemporal disparities in the diagnosis, treatment, and mortality of respiratory tract cancers in Brazil
This study aimed to assess spatiotemporal disparities in the diagnosis, treatment, and mortality rates of respiratory tract cancers (RTCs) in Brazil. Data on 40-79-year-old Brazilian patients diagnosed with RTCs between 2013 and 2022 were analyzed using spatial and temporal analysis. We also calculated the healthcare and mortality ratio (HMR), defined as the relationship between diagnosis/treatment density and mortality, to provide an additional measure of healthcare disparities. Space-time cubes analysis (STC) revealed significant increasing trends in diagnosis (trend statistic = 3.22, p = 0.0013) and treatment (trend statistic = 3.04, p = 0.0042) and stable trends in mortality (trend statistic <0.001, p = 1.0000), with hot spots in the South and Southeast and cold spots in the Northeast for diagnosis and treatment, whereas mortality displayed persistent high values in the South, with more variable patterns across other regions. Temporal graph analysis showed that the analyzed variables peaked in 2019 and decreased in the following year. It was also observed that, from 2013-2017-2018-2022, diagnosis and treatment rates expanded from the South to the Southeast and Central-West, whereas mortality did not differ significantly between the two quinquennia. Global spatial autocorrelation (Moran's I > 0.85) was observed for diagnosis, treatment, and mortality rates in both quinquennia. Univariate local indicators of spatial association analysis identified high-high clusters for diagnosis, treatment and mortality, mainly in the South, and low-low clusters in the North and Northeast. In 2013-2017, high HMR values were limited to northern Parana state, the southwestern of Mato Grosso do Sul state, the southern portion of Goias state, and western area of Minas Gerais. In the next quinquennia, HMR improved across almost all the South and Southeast regions and expanded into parts of Center-West, North, and Northeast. The observed improvements in diagnostic and treatment services have not resulted in a consistent and widespread reduction in RTC mortality across the country, despite recent efforts to expand service delivery beyond major urban centers.
Diagnóstico de muerte encefálica en víctimas de accidentes: análisis del proceso
Objetivo: Las víctimas de las causas externas de trauma, causadas ya sea por accidentes de tránsito o por la violencia en general, son en su mayoría jóvenes que evolucionan a muerte encefálica y posibles donantes. Teniendo en cuenta que el tiempo para determinar la muerte encefálica puede interferir en la calidad de los órganos ofrecidos, el propósito de este estudio fue analizar el período del proceso de diagnóstico de muerte encefálica. Material y métodos: Es un estudio descriptivo retrospectivo sobre el proceso de diagnóstico de muerte encefálica y su duración en pacientes víctimas mortales por causas externas de traumatismo en una ciudad del noroeste de Paraná, Brasil, desde enero a diciembre de 2012. Resultados: El promedio de tiempo para el período entre la confirmación del coma y el protocolo inicial para la determinación de la muerte encefálica en los cuatro hospitales fue de 18.90 ± 13.62 horas; el promedio de cierre del protocolo con Examen Complementario para los cuatro hospitales estudiados fue de 12 ± 8 horas, y el cierre con prueba clínica indicó 10 ± 6 horas. Conclusión: Los datos presentados describen una falla en todo el proceso de muerte encefálica, desde la detección de coma hasta el cierre del protocolo de diagnóstico de muerte encefálica, lo que aumenta considerablemente el tiempo de diagnóstico. Objective: Victims of external causes of trauma, caused either by traffic accidents or by violence in general, are mostly youngsters who evolve to brain death and potential donors. Considering that the time to determine brain death may interfere on the quality of the offered organs, the purpose of this study was to analyze the period of brain death diagnosis process. Material and Methods: It is a retrospective, descriptive study on brain death diagnosis process and its duration in patients who are fatal victims due to external causes of trauma in a city in the Northwest of Paraná, Brazil, ranging from January to December 2012. Results: The average of time for the period between the coma confirmation and the initial protocol for brain death determination in the four hospitals consisted of 18.90±13.62 hours; the average of protocol closure with Complementary Examination for the four studied hospitals consisted of 12±8 hours, and closure with clinical proof indicated 10±6 hours. Conclusion: The data presented describe a failure in the entire brain death process, since coma detection until brain death diagnosis protocol closure, considerably increasing diagnosis time. As vítimas de causas externas por traumas, seja por acidentes de trânsito ou violência em geral, são em sua maioria jovens que evoluem para morte encefálica tornando-se potenciais doadores. Considerando que o tempo de determinação de morte encefálica pode interferir na qualidade dos órgãos ofertados, o objetivo deste estudo foi analisar o tempo do processo de determinação de morte encefálica. Trata-se de um estudo retrospectivo e descritivo sobre o processo de determinação de morte encefálica e sua duração, em pacientes vítimas fatais por causas externas ocasionadas por traumas, em um  município do Noroeste do Paraná Brasil, no período de janeiro a dezembro de 2012. A média de tempo entre período compreendido entre a constatação do coma e início do protocolo de determinação de morte encefálica, nos quatro hospitais analisados foi de 18,90±13,62 horas e a média de encerramento do protocolo com Exame Complementar dos quatro hospitais estudados foi de 12±8 horas e do encerramento com prova clínica foi de 10±6 horas. Os dados apresentados descrevem uma falha em todo o processo de morte encefálica, desde a detecção do coma  até a finalização do protocolo de determinação de morte encefálica, aumentando consideravelmente o período de tempo de seu diagnóstico.
Spatial distribution of breast cancer mortality: Socioeconomic disparities and access to treatment in the state of Parana, Brazil
Breast cancer remains an important public health problem that is responsible for high morbidity and mortality rates, especially in developing countries. To analyze the socioeconomic and access disparities related to breast cancer mortality in 399 cities in the state of Parana, Brazil. Ecological, descriptive and analytical cross-sectional study based on secondary data from the Mortality Information System from 2009 to 2012 in the state of Parana. Breast cancer mortality rate was calculated considering the mortality cases and women population of each municipality, both based on women older than 20 years old. Moran global and local analyses were used to verify the presence of spatial autocorrelation and spatial regression modeling (Spatial Lag-SAR) with the purpose of analyzing the association between socioeconomic indicators, access and mortality rates for breast cancer. Significant positive spatial autocorrelation was found for breast cancer mortality rates (I = 0.5432, p = 0.001). In the spatial regression analysis, the model explained 61% of the variance of the mortality rates for breast cancer. The mortality rate for breast cancer was negatively associated with the illiteracy rate (Coefficient = -0.0279) and positively associated with the access index (Coefficient = 12.9525). The lower illiteracy rate has not been sufficient to reduce the specific mortality rate by breast cancer, and the higher the score of accessibility to cancer services, the higher the specific mortality due to breast cancer. The results show that in the state of Parana, the problem is not related to a lack of education of the patients or the distance walked, but rather with the organization of services. These conclusions have important political implications on the organization and quality of the services provided for the diagnosis and treatment of breast cancer in the state of Parana.
Exploring regional disparities in lung cancer mortality in a Brazilian state: A cross-sectional ecological study
Lung cancer (LC) is one of the main causes of mortality in Brazil; geographic, cultural, socioeconomic and health access factors can affect the development of the disease. We explored the geospatial distribution of LC mortality, and associated factors, between 2015 and 2019, in Parana state, Brazil. We obtained mortality (from the Brazilian Health Informatics Department) and population rates (from the Brazilian Institute of Geography and Statistics [IBGE]) in people over 40 years old, accessibility of oncology centers by municipality, disease diagnosis rate (from Brazilian Ministry of Health), the tobacco production rate (IBGE) and Parana Municipal Performance Index (IPDM) (from Parana Institute for Economic and Social Development). Global Moran's Index and Local Indicators of Spatial Association were performed to evaluate the spatial distribution of LC mortality in Parana state. Ordinary Least Squares Regression and Geographically Weighted Regression were used to verify spatial association between LC mortality and socioeconomic indicators and health service coverage. A strong spatial autocorrelation of LC mortality was observed, with the detection of a large cluster of high LC mortality in the South of Parana state. Spatial regression analysis showed that all independent variables analyzed were directly related to LC mortality by municipality in Paraná. There is a disparity in the LC mortality in Parana state, and inequality of socioeconomic and accessibility to health care services could be associated with it. Our findings may help health managers to intensify actions in regions with vulnerability in the detection and treatment of LC.