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1.
Blood ; 2024 May 10.
Artigo em Inglês | MEDLINE | ID: mdl-38728427

RESUMO

Adult hematopoietic Stem and Progenitor Cells (HSPCs) reside in the bone marrow hematopoietic niche, which regulates HSPC quiescence, self-renewal, and commitment in a demand-adapted manner. While the complex bone marrow niche is responsible for adult hematopoiesis, evidence exists for simpler, albeit functional and more accessible, extramedullary hematopoietic niches. Inspired by the anecdotal description of retroperitoneal hematopoietic masses occurring at higher frequency upon hormonal dysregulation within the adrenal gland, we hypothesized that the adult adrenal gland could be induced into a hematopoietic supportive environment in a systematic manner, thus revealing mechanisms underlying de novo niche formation in the adult. Here we show that upon splenectomy and hormonal stimulation, the adult adrenal gland of mice can be induced to recruit and host functional HSPCs, capable of serial transplantation, and that this phenomenon is associated with de novo formation of platelet-derived growth factor receptor α (PDGFRα) expressing stromal nodules. We further show in CXCL12-GFP reporter mice that adrenal glands contain a stromal population reminiscent of the CXCL12-Abundant Reticular (CAR) cells which compose the bone marrow HSPC niche. Mechanistically, HSPC homing to hormonally-induced adrenal glands was found dependent on the CXCR4/CXCL12 axis. Mirroring our findings in mice, we found reticular CXCL12+ cells co-expressing master niche-regulator FOXC1 in primary samples from human adrenal myelolipomas, a benign tumor composed of adipose and hematopoietic tissue. Our findings reignite long-standing questions regarding hormonal regulation of hematopoiesis and provide a novel model to facilitate the study of adult-specific inducible hematopoietic niches which may pave the way to therapeutic applications.

2.
J Med Syst ; 46(6): 37, 2022 May 06.
Artigo em Inglês | MEDLINE | ID: mdl-35524075

RESUMO

The aims of this study were to assess All-Patient Refined Diagnosis-Related Groups' (APR-DRG) Severity of Illness (SOI) and Risk of Mortality (ROM) as predictors of in-hospital mortality, comparing with Charlson Comorbidity Index (CCI) and Elixhauser Comorbidity Index (ECI) scores. We performed a retrospective observational study using mainland Portuguese public hospitalizations of adult patients from 2011 to 2016. Model discrimination (C-statistic/ area under the curve) and goodness-of-fit (R-squared) were calculated. Our results comprised 4,176,142 hospitalizations with 5.9% in-hospital deaths. Compared to the CCI and ECI models, the model considering SOI, age and sex showed a statistically significantly higher discrimination in 49.6% (132 out of 266) of APR-DRGs, while in the model with ROM that happened in 33.5% of APR-DRGs. Between these two models, SOI was the best performer for nearly 20% of APR-DRGs. Some particular APR-DRGs have showed good discrimination (e.g. related to burns, viral meningitis or specific transplants). In conclusion, SOI or ROM, combined with age and sex, perform better than more widely used comorbidity indices. Despite ROM being the only score specifically designed for in-hospital mortality prediction, SOI performed better. These findings can be helpful for hospital or organizational models benchmarking or epidemiological analysis.


Assuntos
Grupos Diagnósticos Relacionados , Hospitalização , Adulto , Comorbidade , Mortalidade Hospitalar , Humanos , Gravidade do Paciente , Estudos Retrospectivos , Índice de Gravidade de Doença
3.
J Pathol ; 250(1): 107-119, 2020 01.
Artigo em Inglês | MEDLINE | ID: mdl-31465124

RESUMO

Sustained expression of FOXM1 is a hallmark of nearly all human cancers including squamous cell carcinomas of the head and neck (HNSCC). HNSCCs partially preserve the epithelial differentiation program, which recapitulates fetal and adult traits of the tissue of tumor origin but is deregulated by genetic alterations and tumor-supporting pathways. Using shRNA-mediated knockdown, we demonstrate a minimal impact of FOXM1 on proliferation and migration of HNSCC cell lines under standard cell culture conditions. However, FOXM1 knockdown in three-dimensional (3D) culture and xenograft tumor models resulted in reduced proliferation, decreased invasion, and a more differentiated-like phenotype, indicating a context-dependent modulation of FOXM1 activity in HNSCC cells. By ectopic overexpression of FOXM1 in HNSCC cell lines, we demonstrate a reduced expression of cutaneous-type keratin K1 and involucrin as a marker of squamous differentiation, supporting the role of FOXM1 in modulation of aberrant differentiation in HNSCC. Thus, our data provide a strong rationale for targeting FOXM1 in HNSCC. © 2019 Pathological Society of Great Britain and Ireland. Published by John Wiley & Sons, Ltd.


Assuntos
Diferenciação Celular , Proliferação de Células , Proteína Forkhead Box M1/metabolismo , Neoplasias de Cabeça e Pescoço/metabolismo , Carcinoma de Células Escamosas de Cabeça e Pescoço/metabolismo , Animais , Linhagem Celular Tumoral , Feminino , Proteína Forkhead Box M1/genética , Regulação Neoplásica da Expressão Gênica , Neoplasias de Cabeça e Pescoço/genética , Neoplasias de Cabeça e Pescoço/patologia , Humanos , Camundongos Nus , Transdução de Sinais , Carcinoma de Células Escamosas de Cabeça e Pescoço/genética , Carcinoma de Células Escamosas de Cabeça e Pescoço/patologia , Carga Tumoral
4.
Knee Surg Sports Traumatol Arthrosc ; 29(1): 8-43, 2021 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-30413860

RESUMO

PURPOSE: The goal of this systematic review and meta-analysis was to identify the main risk factors for periprosthetic joint infection (PJI) in patients undergoing total hip or knee arthroplasties. METHODS: A systematic review was conducted of the potential risk factors for PJI in total hip or total knee arthroplasty. Risk factors were compared and grouped according to demographics, comorbidities, behavior, infections, native joint diseases and other patient-related and procedure-related factors. Meta-analysis (random-effects models) was conducted using odds ratio (OR) and mean difference (MD). Risk of bias (ROBBINS-I) and strength of the evidence (GRADE) were assessed. RESULTS: The study included 37 studies (2,470,827 patients). Older age was a protective factor (MD = - 1.18). Male gender (OR 1.34), coagulopathy (3.05), congestive heart failure (2.36), diabetes mellitus (1.80), obesity (1.61), systemic neoplasia (1.57), chronic lung disease (1.52), and hypertension (1.21) increased the risk for PJI. Behavioral risk factors comprised alcohol abuse (2.95), immunosuppressive therapy (2.81), steroid therapies (1.88), and tobacco (1.82). Infectious risk factors included surgical site infections (6.14), postoperative urinary tract infections (2.85), and prior joint infections (2.15). Rheumatoid arthritis, posttraumatic native joint disease, high National Nosocomial Infections Surveillance (NNIS) system surgical patient index score, prior joint operation, American Society of Anesthesiologists score ≥ 3 and obesity were also significantly associated with higher risk of PJI. Osteoarthritis and blood transfusion were protective factors. CONCLUSIONS: The main risk factors for PJI in each category were male gender, coagulopathy, alcohol abuse, surgical site infection (highest score) and high NNIS system surgical patient index score. Protective factors were age, female gender in TKA, osteoarthritis and blood transfusion. Optimization of modifiable risk factors for PJI should be attempted in clinical practice. LEVEL OF EVIDENCE: II.


Assuntos
Artroplastia de Quadril/efeitos adversos , Artroplastia do Joelho/efeitos adversos , Artropatias/epidemiologia , Infecções Relacionadas à Prótese/epidemiologia , Fatores Etários , Idoso , Transfusão de Sangue/métodos , Feminino , Humanos , Artropatias/etiologia , Masculino , Pessoa de Meia-Idade , Obesidade/epidemiologia , Razão de Chances , Osteoartrite/epidemiologia , Osteoartrite/cirurgia , Infecções Relacionadas à Prótese/etiologia , Infecções Relacionadas à Prótese/cirurgia , Estudos Retrospectivos , Fatores de Risco , Fatores Sexuais , Infecção da Ferida Cirúrgica/epidemiologia , Infecção da Ferida Cirúrgica/etiologia
5.
J Emerg Med ; 59(1): 153-160, 2020 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-32349880

RESUMO

BACKGROUND: Knowing the distinctive features of patients with the highest utilization of the emergency department (ED) is paramount to finding adequate alternatives to ED care for selected patients and improving health care quality and efficiency. OBJECTIVE: This study aimed to identify ED high-frequency users and compare their clinical and utilization characteristics with other ED users. METHODS: Secondary data analysis of ED visits and patients database from a Portuguese public urban hospital. Retrospective study of adults visiting the ED in 2016 (61,403 patients; 95,643 visits), comparing demographic and clinical characteristics of patients and clinical and temporal characteristics of ED visits between high-frequency users (>10 ED visits in 2016) and frequent (4-10 ED visits) and nonfrequent (1-3 ED visits) users. RESULTS: We identified 169 high-frequency users (0.3% of patients and 3.0% of ED visits) with an average number of 16.9 visits in 2016. Patients in this group were older (61.8 years; frequent users: 61.2 years; nonfrequent users: 53.4 years; p < 0.01) and required immediate and mental health care more frequently (18.6% of high-frequency users, 17.4% of frequent users, 13.5% of nonfrequent users, and 6.6%; 3.3%, 2.3%; p < 0.01). High-frequency users also used the ED for nonurgent reasons more than remaining groups (6.1%, 3.5%, 3.1%; p < 0.01). CONCLUSION: High-frequency users are an aged and heterogeneous group, requiring tailored interventions to improve care.


Assuntos
Serviço Hospitalar de Emergência , Adulto , Idoso , Humanos , Estudos Retrospectivos
6.
Palliat Med ; 32(4): 891-901, 2018 04.
Artigo em Inglês | MEDLINE | ID: mdl-29235927

RESUMO

BACKGROUND: Most people would prefer to die at home as opposed to hospital; therefore, understanding mortality patterns by place of death is essential for health resources allocation. AIM: We examined trends and risk factors for hospital death in conditions needing palliative care in a country without integrated palliative care. DESIGN: This is a death certificate study. We examined factors associated with hospital death using logistic regression. SETTING/PARTICIPANTS: All adults (1,045,381) who died between 2003 and 2012 in Portugal were included. We identified conditions needing palliative care from main causes of death: cancer, heart/cerebrovascular, renal, liver, respiratory and neurodegenerative diseases, dementia/Alzheimer's/senility and HIV/AIDS. RESULTS: Conditions needing palliative care were responsible for 70.7% deaths ( N = 738,566, median age 80); heart and cerebrovascular diseases (43.9%) and cancer (32.2%) accounted for most. There was a trend towards hospital death (standardised percentage: 56.3% in 2003, 66.7% in 2012; adjusted odds ratio: 1.04, 95% confidence interval: 1.04-1.04). Hospital death risk was higher for those aged 18-39 years (3.46, 3.25-3.69 vs aged 90+), decreasing linearly with age; lower in dementia/Alzheimer's/senility versus cancer (0.13, 0.13-0.13); and higher for the married and in HIV/AIDS (3.31, 3.00-3.66). Effects of gender, working status, weekday and month of death, hospital beds availability, urbanisation level and deprivation were small. CONCLUSION: The upward hospital death trend and fact that being married are risk factors for hospital death suggest that a reliance on hospitals may coexist with a tradition of extended family support. The sustainability of this model needs to be assessed within the global transition pattern in where people die.


Assuntos
Atestado de Óbito , Mortalidade Hospitalar , Cuidados Paliativos , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Portugal/epidemiologia , Fatores de Risco , Adulto Jovem
7.
Med Care ; 55(5): 506-513, 2017 05.
Artigo em Inglês | MEDLINE | ID: mdl-28403012

RESUMO

BACKGROUND: Vertical integration is expected to improve communication and coordination between inpatient care and care after discharge. Despite being used across health systems worldwide, evidence about its impact on readmissions is sparse and contradictory. OBJECTIVE: To assess the impact of vertical integration on hospital readmissions. RESEARCH DESIGN, SUBJECTS, AND MEASURES: Using difference-in-differences we compared readmissions before and after vertical integration in 6 Portuguese hospitals for years 2004-2013. A control group with 6 similar hospitals not integrated was utilized. Considered outcome was 30-day unplanned readmission. We used logistic regression at the admission level and accounted for patients' risk factors using claims data. Analyses for each hospital and selected conditions were also run. RESULTS: Our results suggest that readmissions decreased overall after vertical integration [odds ratio (OR)=0.900; 95% confidence interval (CI), 0.812-0.997]. Hospital analysis indicated that there was no impact for 2 hospitals (OR=0.960; 95% CI, 0.848-1.087 and OR=0.944; 95% CI, 0.857-1.038), and a positive effect in 4 hospitals (greatest effect: OR=0.811; 95% CI, 0.736-0.894). A positive evolution was observed for a limited number of conditions, with better results for diabetes with complications (OR=0.689; 95% CI, 0.525-0.904), but no impact regarding congestive heart failure (OR=1.067; 95% CI, 0.827-1.377). CONCLUSIONS: Merging acute and primary care providers was associated with reduced readmissions, even though improvements were not found for all institutions or condition-specific groups. There are still challenges to be addressed regarding the success of vertical integration in reducing 30-day hospital readmissions.


Assuntos
Continuidade da Assistência ao Paciente/estatística & dados numéricos , Procedimentos Clínicos/estatística & dados numéricos , Readmissão do Paciente/estatística & dados numéricos , Garantia da Qualidade dos Cuidados de Saúde/estatística & dados numéricos , Intervalos de Confiança , Feminino , Humanos , Tempo de Internação/estatística & dados numéricos , Masculino , Razão de Chances , Portugal/epidemiologia
8.
Int Arch Occup Environ Health ; 89(8): 1215-1228, 2016 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-27430974

RESUMO

PURPOSE: Theoretical and empirical research has provided mixed arguments and evidence for the effects of temporary agency work on workers' well-being. This study aims to go one critical step further by comparing the workplace and general well-being of workers who continue to have this employment status with others who obtain a direct contract and others who remain unemployed. METHODS: Temporary agency workers longitudinal data (n = 289) was used, and three groups were compared: (1) maintaining a temporary agency contract (n = 187), (2) obtaining a direct contract (n = 57), and (3) remaining unemployed (n = 45). RESULTS: Covariance analyses adjusted for background variables showed that those who obtained a direct contract experienced a decrease in job insecurity but experienced an increase in job demands, while those who continued to have a temporary agency contract maintained these job conditions. However, in terms of workplace well-being, the temporary agency contract was not found to be more detrimental than a direct contract, but in terms of life satisfaction, unemployment was found to be more detrimental than other transitions. CONCLUSIONS: A temporary agency contract does not have an inevitable negative effect on workers' well-being.


Assuntos
Emprego/psicologia , Satisfação no Emprego , Tolerância ao Trabalho Programado/psicologia , Carga de Trabalho/psicologia , Adolescente , Adulto , Contratos , Emprego/métodos , Feminino , Nível de Saúde , Humanos , Estudos Longitudinais , Masculino , Pessoa de Meia-Idade , Inquéritos e Questionários , Fatores de Tempo , Desemprego/psicologia , Adulto Jovem
9.
J Med Syst ; 40(1): 2, 2016 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-26558393

RESUMO

The length of hospital stay (LOS) is an important measure of efficiency in the use of hospital resources. Acute Myocardial Infarction (AMI), as one of the diseases with higher mortality and LOS variability in the OECD countries, has been studied with predominant use of administrative data, particularly on mortality risk adjustment, failing investigation in the resource planning and specifically in LOS. This paper presents results of a predictive model for extended LOS (LOSE - above 75th percentile of LOS) using both administrative and clinical data, namely laboratory data, in order to develop a decision support system. Laboratory and administrative data of a Portuguese hospital were included, using logistic regression to develop this predictive model. A model with three laboratory data and seven administrative data variables (six comorbidities and age ≥ 69 years), with excellent discriminative ability and a good calibration, was obtained. The model validation shows also good results. Comorbidities were relevant predictors, mainly diabetes with complications, showing the highest odds of LOSE (OR = 37,83; p = 0,001). AMI patients with comorbidities (diabetes with complications, cerebrovascular disease, shock, respiratory infections, pulmonary oedema), with pO2 above level, aged 69 years or older, with cardiac dysrhythmia, neutrophils above level, pO2 below level, and prothrombin time above level, showed increased risk of extended LOS. Our findings are consistent with studies that refer these variables as predictors of increased risk.


Assuntos
Coleta de Dados/métodos , Técnicas e Procedimentos Diagnósticos/estatística & dados numéricos , Administração Hospitalar/estatística & dados numéricos , Tempo de Internação/estatística & dados numéricos , Infarto do Miocárdio/fisiopatologia , Doença Aguda , Fatores Etários , Idoso , Comorbidade , Técnicas de Apoio para a Decisão , Feminino , Humanos , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Portugal , Valor Preditivo dos Testes , Fatores de Risco , Fatores Sexuais
10.
J Pain Symptom Manage ; 67(5): e439-e452, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38237790

RESUMO

CONTEXT: The place where people are cared towards the end of their life and die is a complex phenomenon, requiring a deeper understanding. Honoring preferences is critical for the delivery of high-quality care. OBJECTIVES: In this umbrella review we examine and synthesize the evidence regarding preferences about place of end-of-life care and death of patients with life-threatening illnesses and their families. METHODS: Following the Joanna Briggs Institute methodology, we conducted a comprehensive search for systematic reviews in PsycINFO, MEDLINE, EMBASE, CINAHL, Epistemonikos, and PROSPERO without language restrictions. RESULTS: The search identified 15 reviews (10 high-quality, three with meta-analysis), covering 229 nonoverlapping primary studies. Home is the most preferred place of end-of-life care for both patients (11%-89%) and family members (23%-84%). It is also the most preferred place of death (patient estimates from two meta-analyses: 51%-55%). Hospitals and hospice/palliative care facilities are preferred by substantial minorities. Reasons and factors affecting preferences include illness-related, individual, and environmental. Differences between preferred places of care and death are underexplored and the evidence remains inconclusive about changes over time. Congruence between preferred and actual place of death ranges 21%-100%, is higher in studies since 2004 and a meta-analysis shows noncancer patients are at higher risk of incongruence than cancer patients (OR 1.23, 95% CI: 1.01-1.49, I2 = 62%). CONCLUSION: These findings are a crucial starting point to address gaps and enhance strategies to align care with patient and family preferences. To accurately identify patient and family preferences is an important opportunity to change their lives positively.

11.
Pediatr Rep ; 16(2): 461-481, 2024 Jun 07.
Artigo em Inglês | MEDLINE | ID: mdl-38921705

RESUMO

BACKGROUND: Investigations have shown the different impacts that ACEs have on an individual's adult life, on both physical and mental health, but they have not yet shown the issue of the influence of ACEs on adults and young adults. Objective/Participants and Setting: This systematic review, performed according to the PRISMA norms and guidelines, intended to understand the most frequent outcomes of adverse childhood experiences in the life of young adults and adults. METHODS: Studies were identified through multiple literature search databases at EBSCOhost, Web of Science, and PubMed April 2023, and a total of 279 studies, published between 1999 and 2002, were excluded, 256 because of multiple factors: being duplicates, showing statistical analysis with correlations only, being systematic reviews or case studies, comprising individuals under the age of 18, and not meeting the intended theme; ultimately, we selected for the review a total of 23 studies. RESULTS AND CONCLUSIONS: The impacts of the various articles are subdivided into three main themes: antisocial and criminal behaviour; sexual Behaviour and intimate partner violence; and attachment, quality of life, and therapeutic alliance.

12.
EClinicalMedicine ; 68: 102399, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-38545089

RESUMO

Background: During the coronavirus 2019 disease (COVID-19) pandemic, health systems had to respond to the needs of COVID-19 patients, while caring for patients with other life-threatening conditions. Pandemics, such as the COVID-19 pandemic, stir global health and mortality patterns. This is likely to include trends in dying places. In this paper, we examine trends in place of death for adults in 32 countries, comparing the initial COVID-19 pandemic years (2020-2021) with the eight years before the pandemic (2012-2019). Methods: Data on place of death for all adults (18 years and over) that died from 1 January 2012 to 31 December 2021 were requested (47 countries approached, 32 included). The classification of place of death varied widely between countries. "Home" was the most common category, the remaining category groups comprised "hospital or health institution", "other defined", and "ill-defined". We analysed place of death data in an aggregate form, by sex, age group, and selected underlying causes of death (cancer, dementia, and COVID-19). Findings: The study included 100.7 million people (51.5% male, 68.0% with ≥70 years), 20.4% died from cancer and 5.8% from dementia; 30.8% of deaths took place at home. The percentage of home deaths rose from 30.1% in 2012-2013 to 30.9% in 2018-2019 and further to 32.2% in the pandemic (2020-2021). Home deaths increased during the pandemic in 23 countries. In most countries the rise was greater in women and cancer; age differences were not consistent. Interpretation: Our study shows that there was a rise in home deaths during the pandemic, but with variability across countries, sex, age, and causes of death. The sex difference observed in most countries may have several explanations, including more engagement of women in discussions about end of life care planning and hospital admission avoidance. A higher rise of home deaths among people dying of cancer may be explained by the more predictable disease trajectory compared to non-malignant conditions, as well as earlier and better integrated palliative care. Funding: This work is part of the EOLinPLACE Project, which has received funding from the European Research Council (ERC) under the European Union's Horizon 2020 research and innovation programme (grant agreement No 948609).

13.
Artigo em Inglês | MEDLINE | ID: mdl-38673358

RESUMO

During the COVID-19 pandemic, telework emerged as a pivotal strategy to mitigate the spread of the virus. However, telework's feasibility was contingent on job roles. This gave rise to two distinct groups: teleworkers and on-site workers. However, the impacts of social support and well-being extended to both groups. This study investigated the link between organisational and supervisory family support and subjective well-being, examining work engagement as a mediator. Conducted in Portugal, this cross-sectional study surveyed 515 individuals via web-based questionnaires. Data were analysed using descriptive statistics, correlation analysis, confirmatory factor analysis, and multiple-group analysis. The findings revealed a positive correlation between perceived organisational family support (POFS) and work engagement for both groups. Additionally, perceived supervisory family support (PSFS) positively correlated with work engagement for telecommuters but not on-site workers. Furthermore, work engagement was positively associated with subjective well-being for both groups. Moreover, work engagement mediated the relationship between POFS and subjective well-being. This study enriches the literature by analysing POFS, PSFS, work engagement, and subjective well-being dynamics among teleworkers and on-site employees.


Assuntos
COVID-19 , Família , Apoio Social , Teletrabalho , Humanos , COVID-19/psicologia , COVID-19/epidemiologia , Masculino , Adulto , Feminino , Estudos Transversais , Portugal , Pessoa de Meia-Idade , Família/psicologia , SARS-CoV-2 , Inquéritos e Questionários , Engajamento no Trabalho , Pandemias , Adulto Jovem
14.
Palliat Care Soc Pract ; 18: 26323524231222498, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38357678

RESUMO

Background: Whenever possible, a person should die where they feel it is the right place to be. There is substantial global variation in home death percentages but it is unclear whether these differences reflect preferences, and there are major limitations in how the place of death is classified and compared across countries. Objectives: EOLinPLACE is an international interdisciplinary research project funded by the European Research Council aiming to create a solid base for a ground-breaking international classification tool that will enable the mapping of preferred and actual places towards death. Design: Mixed-methods observational research. Methods and analysis: We combine classic methods of developing health classifications with a bottom-up participatory research approach, working with international organizations representing patients and informal carers [International Alliance of Patients' Organizations (IAPO) and Eurocarers]. First, we will conduct an international comparative analysis of existing classification systems and routinely collected death certificate data on place of death. Secondly, we will conduct a mixed-methods study (ethnography followed by longitudinal quantitative study) in four countries (the Netherlands, Portugal, Uganda and the United States), to compare the preferences and experiences of patients with life-threatening conditions and their families. Thirdly, based on the generated evidence, we will build a contemporary classification of dying places; assess its content validity through focus groups with patients, carers and other stakeholders; and evaluate it in a psychometric study to examine construct validity, reliability, responsiveness, data quality and interpretability. Ethics: Approved by the ethics committee of the University of Coimbra, Faculty of Medicine (CE-068-2022) and committees in each of the participating countries. Discussion: The findings will provide a deeper understanding of the diversity in individual end-of-life pathways. They will enable key developments such as measurement of progress towards achievement of preferences when care can be planned. The project will open new directions in how to care for the dying. Trial registration: Research Registry UIN 9213.

15.
Mol Membr Biol ; 29(6): 207-17, 2012 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-22830986

RESUMO

Steady-state fluorescence anisotropy and dynamic light scattering (DLS) were used to determine the thermotropic properties of lipid systems that act as models for bacterial membranes of Yersinia kristensenii and Proteus mirabilis. Lipid proportions of PE:PG:CL of 0.60:0.20:0.20 and 0.80:0.15:0.05, were used in order to mimic these two membranes respectively. We observed that the introduction of cardiolipin (CL) as a third lipid component of any PE:PG mixture, changes the system's properties considerably. The results obtained by these two techniques show that the main transition temperatures obtained are undoubtedly CL-dependent. Additionally AFM experiments were performed and these results show that even at small concentration CL produces important changes not only in the membrane thermotropic properties, but also in the bilayer structure. In summary, we were able to compare how low and high CL concentration affect bacterial membrane model system properties which can provide a further explanation for the different antibiotic susceptibilities reported for Y. kristensenii and P. mirabilis.


Assuntos
Bactérias/química , Cardiolipinas/química , Membrana Celular/química , Fosfatidiletanolaminas/química , Fosfatidilgliceróis/química , Modelos Teóricos
16.
BMJ Open ; 13(3): e066374, 2023 03 29.
Artigo em Inglês | MEDLINE | ID: mdl-36990480

RESUMO

INTRODUCTION: For most of history, the majority of people died at home surrounded by family. However, the global scenario has progressively changed towards hospital death and more recently in some countries back again towards home, with indication that COVID-19 may have further increased the number of home deaths. It is therefore timely to establish the state-of-the-art about people's preferences for place of end-of-life care and death, to understand the full spectrum of preferences, nuances and commonalities worldwide. This protocol describes the methods for an umbrella review which aims to examine and synthesise the available evidence regarding preferences about place of end-of-life care and death of patients with life-threatening illnesses and their families. METHODS AND ANALYSIS: We will search for relevant systematic reviews (quantitative and/or qualitative) in six databases from inception without language restrictions: PsycINFO, MEDLINE, EMBASE, CINAHL, PROSPERO and Epistemonikos. Following the Joanna Briggs Institute (JBI) methodology for umbrella reviews, eligibility screening, data extraction and quality assessment (using the JBI Critical Appraisal Checklist) will be done by two independent reviewers. We will report the screening process using the Preferred Reporting Items for Systematic Reviews and Meta-Analyses flow diagram. Study double-counting will be reported using the Graphical Representation of Overlap for OVErviews tool. A narrative synthesis will include 'Summary of Evidence' tables to address five review questions (distribution of preferences and reasons, influencing variables, place of care vs place of death, changes over time, congruence between preferred and actual places), grading the evidence on each question using Grading of Recommendations Assessment, Development and Evaluation (GRADE) and/or GRADE-Confidence in the Evidence from Reviews of Qualitative research. ETHICS AND DISSEMINATION: This review does not require ethical approval. The results will be presented at conferences and published in a peer-reviewed journal. PROSPERO REGISTRATION NUMBER: CRD42022339983.


Assuntos
COVID-19 , Cuidados Paliativos na Terminalidade da Vida , Assistência Terminal , Humanos , Pesquisa Qualitativa , Projetos de Pesquisa , Literatura de Revisão como Assunto
17.
J Am Coll Emerg Physicians Open ; 4(1): e12864, 2023 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-36643598

RESUMO

Objectives: This study aims to evaluate the effect of the COVID-19 pandemic on the frequency of emergency department (ED) visits in Portugal between March 2020 and July 2021. Methods: We used data on the monthly number of visits for all public hospitals' EDs from mainland Portugal between January 2017 and July 2021. We studied the impact of the pandemic overall, by type of ED (general, pediatric, and obstetric) and by Manchester Triage System color (red, orange, yellow, green, and blue) using an interrupted time series analysis. The prepandemic period corresponded to the months from January 2017 to February 2020 and the pandemic period to the months from March 2020 to July 2021. Results: We observed over 26 million ED visits, the majority in general EDs (74.0%) and triaged yellow (48.4%) or green (38.4%). During the pandemic period, ED visits decreased 45.7% (95% confidence interval [CI]: -39.8% to -51.2%) and pediatric ED visits decreased by 72.4% (95% CI: -64.6% to -78.6%). A decrease was observed for all colors but tended to be progressively smaller as the priority increased. There was an increase in ED visits during the pandemic period (2.3%; 95% CI: 1.4% to 3.2%), eventually returning to prepandemic values. Conclusion: Our data indicate a considerable and long-lasting effect of the COVID-19 pandemic affecting mainly pediatric and milder cases, which were returning toward prepandemic values as the pandemic progressed. In a country with frequent use of EDs, the health system may need to be prepared to respond to prepandemic baseline ED demand, together with additional demand because of long-term sequels of COVID-19 cases and delayed care for chronic and acute conditions.

18.
Artigo em Inglês | MEDLINE | ID: mdl-36900819

RESUMO

Cerebral palsy (CP) can be considered the most frequent childhood physical disorder. The severity and type of dysfunction depend on the brain injury. Movement and posture are the most affected areas. CP is a lifelong condition, and parenting a child with this disorder brings additional challenges (e.g., dealing with grief) and needs (e.g., information). Identifying and characterizing their challenges and needs are pivotal to enrich the knowledge in this field and help draw more suitable support for parents. Interviews with 11 parents of children with CP attending elementary school were conducted. The discourse was transcribed, and a thematic analysis was performed. Three themes emerged from the data: (i) challenges of parenting a child with CP (e.g., internal challenges), (ii) crucial needs for parents to cope with a child with CP (e.g., information), and (iii) the intersection between challenges and needs of parents of children with CP (e.g., unawareness). Regarding the challenges and needs characterization, lifespan was the most frequent period of child development, and the microsystem was the context of life most reported. The findings may inform the design of educational and remediation interventions to support families of children with CP attending elementary school.


Assuntos
Paralisia Cerebral , Poder Familiar , Humanos , Criança , Desenvolvimento Infantil , Instituições Acadêmicas
19.
Artigo em Inglês | MEDLINE | ID: mdl-36673960

RESUMO

The COVID-19 pandemic has affected the use of emergency departments (ED) worldwide. This study identifies the pandemic-related factors associated with the number of ED visits in mainland Portugal and each of its regions. We collected data on ED visits from March 2020 to March 2022. Data on incidence, vaccination, mobility, containment index, and Google search volume were retrieved from open online sources at different time points. We fitted a quasi-Poisson generalized linear regression model, and each variable was modeled separately and adjusted for time and month. There was a positive ED trend throughout the two years of the pandemic in mainland Portugal and each of its regions. In the mainland, during months with high workplace mobility, there were 10.5% more ED visits compared to months with average mobility. ED visits decreased in months with low mobility for retail and recreation, groceries and pharmacies, and transit compared to months of medium mobility. Portugal saw a reduction in ED utilization during the pandemic period, but with a positive trend from March 2020 to March 2022. The change in the population's behavior of seeking the ED throughout the pandemic might be associated with mobility, incidence, and pandemic fatigue.


Assuntos
COVID-19 , Humanos , COVID-19/epidemiologia , Estudos Retrospectivos , Pandemias , Portugal/epidemiologia , Serviço Hospitalar de Emergência
20.
Braz Oral Res ; 37: e015, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36790256

RESUMO

Oral cancer is a public health problem worldwide with approximately 300,000 new cases diagnosed every year and more than 170,000 deaths annually. Squamous cell carcinoma (SCC) accounts for approximately 90% of all oral malignancies and it is frequently preceded by lesions known as oral potentially malignant disorders (OPMDs). Screening programs for early detection of oral lesions have been conducted. Therefore, the objective of this research was to carry out an active search in a screening program in the city of Piracicaba, Brazil. High-risk patients were identified at the city's health center through their medical records and referred for dental consultation. Other patients who opportunistically sought dental care were also seen and if they did not present risk factors for SCC, they were considered low-risk. A total of 756 patients were examined, and 445 met the criteria for the high-risk group and 311 for the low-risk group. It was possible to diagnose 27 OPMDs and six SCCs - 21 OPMDs and six SCCs occurred in high-risk patients and six OPMDs in low-risk patients. A chi-square test was applied and a statistically significant value (p = 0.006) was obtained for the detection of OPMD and SCC in patients of the high-risk group. Screening of high-risk patients through active search proved to be an effective program for diagnosing OPMD and SCC. Therefore, we encourage its implementation on a large scale to reduce the current scenario of this disease.


Assuntos
Carcinoma de Células Escamosas , Doenças da Boca , Neoplasias Bucais , Lesões Pré-Cancerosas , Humanos , Detecção Precoce de Câncer/efeitos adversos , Neoplasias Bucais/diagnóstico , Neoplasias Bucais/epidemiologia , Lesões Pré-Cancerosas/diagnóstico , Lesões Pré-Cancerosas/epidemiologia , Carcinoma de Células Escamosas/diagnóstico , Carcinoma de Células Escamosas/epidemiologia
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