Versão em língua portuguesa do Brasil e a reprodutibilidade do questionário de índice de mobilidade para espondilite anquilosante

PURPOSE: To translate and adapt the Bath Ankylosing Spondylitis Methodology Index (BASMI) - a metrological measurement for the assessment of patients with ankylosing spondylitis to Brazilian-Portuguese and to analyze the applicability of the questionnaire. METHODS: The Brazilian-Portuguese version of the Bath Ankylosing Spondylitis Methodology Index was achieved through a translation and back-translation process. This new Bath Ankylosing Spondylitis Methodology Index version was administered to 25 consecutive patients with ankylosing spondylitis who met the 1984 New York criteria for ankylosing spondylitis and were followed in the Soronegative Spondyloarthropathy Unit of the Rheumatology Division, São Paulo University Medical School, from May to November 2005. In order to evaluate the applicability of the questionnaire, it was administered to patients by 2 separate observers, A and B (Rheumatologists), enabling inter-observer test analysis. After 2 weeks, the second interview was administered to the same patients by observer A only to analyze the intra-observer test. All interviews were conducted in the morning. The Pearson coefficient correlation was used to evaluate applicability. RESULTS: There was no conflict stemming from translation and re-translation of Bath Ankylosing Spondylitis Methodology Index questionnaire, and cross-cultural adaptation proved unnecessary. All components had statistically significant coefficients for intra- and inter-observational applicability, with scores ranging from 0.85 to 1.00 and 0.80 to 0.94, respectively. DISCUSSION: The Brazilian-Portuguese version of the Bath Ankylosing Spondylitis Methodology Index proved to be an applicable instrument for analyzing the mobility index of Brazilian patients with ankylosing spondylitis.OBJETIVO: Traduzir e adaptar para a língua portuguesa do Brasil o Bath Ankylosing Spondylitis of Metrodology Index (BASMI) - instrumento de mensuração metrológica de pacientes com espondilite anquilosante - além de avaliar a reprodutibilidade deste questionário. MÉTODOS: O Bath Ankylosing Spondylitis of Metrodology Index em versão língua portuguesa do Brasil foi obtida após processo de tradução e retro-tradução. Essa nova versão foi aplicada em 25 pacientes consecutivos com espondilite anquilosante, que preenchiam os critérios modificados de Nova Iorque de 1984 e que estavam em acompanhamento na Unidade de Espondiloartropatia Soronegativa do Serviço de Reumatologia da Faculdade de Medicina de Universidade de São Paulo, de maio a novembro de 2005. Para avaliar a reprodutibilidade, o questionário foi aplicado aos pacientes por dois observadores fixos e independentes: A e B (Reumatologistas), no mesmo dia, para avaliar teste interobservador. Após 14 dias, o observador A reaplicou o questionário aos mesmos pacientes para avaliação de teste intra-observador. Todas as entrevistas foram feitas no período de manhã. O coeficiente de correlação de Pearson foi usado para avaliação da reprodutibilidade. RESULTADOS: Não houve conflito quanto a tradução e re-tradução do questionário Bath Ankylosing Spondylitis of Metrodology Index. Também não houve a necessidade de adaptação cultural. Todos os componentes do Bath Ankylosing Spondylitis of Metrodology Index apresentaram coeficiente estatisticamente significante para reprodutibilidade intra e interobservadores, com escores, respectivamente, variando entre 0,85 a 1,00, e 0,80 a 0,94. DISCUSSÃO: O Bath Ankylosing Spondylitis of Metrodology Index, versão para a língua portuguesa do Brasil, mostrou-se ser um instrumento reprodutível para ser utilizado na avaliação do índice de mobilidade de pacientes brasileiros com espondilite anquilosante

Evaluation of the sociodemographic, clinical-laboratorial and therapeutic profile of rheumatoid arthritis patients who participated of research projects in the Escola Paulista de Medicina in the last 25 years

OBJECTIVE: To analyse the clinical, laboratory, treatment and social progress of patients with rheumatoid arthritis (RA) who attend at Escola Paulista de Medicina (EPM-UNIFESP), Brazil, submitted to researching theses from 1979 to September, 2004. PATIENTS AND METHODS: 65 researches theses were reviewed and 26 were selected according inclusion/exclusion criterias. Inclusion: researches which analysed outpatients with RA belonging to EPM ambulatory. Exclusion: researches which included outpatients from other institutions or diseases. Classifications of the studies: a) period of conclusion: I (1979-1984); II (1985-1989); III (1990-1994); IV (1995-1999); V (2000-2004); b) type of the study: laboratory; rehabilitation; radiology; epidemiology; quality of life; health economics. RESULTS: Twenty six thesis out of 65 were suitable for analysis there was a predominance of basic research (7 thesis) on the first three periods, followed by reabilitation research (6 thesis) and measurement of quality of life (5 thesis). Concerning demographic data, patients were in average, 52 years old with prevalence of white females. High levels of schooling were noted for the last periods analysed. Patients functinal class were evaluated in 11 studies, with a predominance of functinal class II. Therapeutic strategies for the treatment of RA have changed significantly, showing DMARDs in the therapeutic options. CONCLUSIONS: The demographic, clinical, laboratory, and therapeutic characteristics changed along time and type of this study developed. Initially there was a preference for NSAIDs, and nowadays for DMARDs.OBJETIVO: descrever o perfil sociodemográfico, clínico-laboratorial e terapêutico dos pacientes com artrite reumatóide (AR) do ambulatório de reumatologia da Escola Paulista de Medicina (EPM-UNIFESP) que participaram de teses de pós-graduação no período de 25 anos, compreendido entre 1979 e 2004. PACIENTES E MÉTODOS: teses que avaliaram pacientes com AR da EPM. Exclusão: teses que incluíram pacientes de outras instituições ou com outras doencas. Classificação dos estudos: conforme o período de conclusão - I (1979-1984); II (1985-1989); III (1990-1994); IV (1995-1999); V (2000-2004) - e tipo de estudo (pesquisa básica; reabilitação; radiologia; qualidade de vida; epidemiologia e economia de saúde). RESULTADOS: Foram selecionadas 26 de 65 teses. Houve um predomínio de pesquisa básica (7 teses) nos três primeiros períodos, seguidos por reabilitação (6 teses) e de qualidade de vida (5 teses). Demografia: média de idade de 52 anos, predomínio do sexo feminino e raça branca. A escolaridade, avaliada em 5 estudos (qualidade de vida e economia de saúde), apresentou nível médio e superior de ensino nos últimos períodos. A classificação funcional (CF) foi pesquisada em 11 estudos, com maior prevalência da CF II. Tratamento: predomínio do uso de antiinflamatórios não-esteroidais (AINEs) e corticóides nos períodos I a III e, nos períodos III e V, de drogas modificadoras de atividade de doença (DMARDs), especialmente de metotrexato (MTX). CONCLUSÕES: observou-se alteração no nível de escolaridade e predomínio dos estudos de pesquisa básica, reabilitação e qualidade de vida. Houve preferência inicial pelos AINEs e, atualmente, pelos DMARDs.UNIFESP-EPMSociedade Brasileira de ReumatologiaUNIFESP, EPMSciEL

Brazilian Version of the Foot Health Status Questionnaire (FHSQ-Br): Cross-Cultural Adaptation and Evaluation of Measurement Properties

OBJECTIVE: To conduct a cross-cultural adaptation of the Foot Health Status Questionnaire into Brazilian-Portuguese and to assess its measurement properties. INTRODUCTION: This instrument is an outcome measure with 10 domains with scores ranging from 0-100, worst to best, respectively. The translated instrument will improve the examinations and foot care of rheumatoid arthritis patients. METHODS: The questions were translated, back-translated, evaluated by a multidisciplinary committee and pre-tested (n = 40 rheumatoid arthritis subjects). The new version was submitted to a field test (n = 65) to evaluate measurement properties such as test-retest reliability, internal consistency and construct validity. The Health Assessment Questionnaire, Numeric Rating Scale for foot pain and Sharp/van der Heijde scores for foot X-rays were used to test the construct validity. RESULTS: The cross-cultural adaptation was completed with minor wording adaptations from the original instrument. The evaluation of measurement properties showed high reliability with low variation coefficients between interviews. The a-Cronbach coefficients varied from 0.468 to 0.855, while correlation to the Health Assessment Questionnaire and Numeric Rating Scale was statistically significant for five out of eight domains. DISCUSSION: Intra- and inter-observer correlations showed high reliability. Internal consistency coefficients were high for all domains, revealing higher values for less subjective domains. As for construct validity, each domain revealed correlations with a specific group of parameters according to what the domains intended to measure. CONCLUSION: The FHSQ was cross-culturally adapted, generating a reliable, consistent, and valid instrument that is useful for evaluating foot health in patients with rheumatoid arthritis

Structural and functional analysis of four non-coding Y RNAs from Chinese hamster cells: identification, molecular dynamics simulations and DNA replication initiation assays.

BACKGROUND: The genes coding for Y RNAs are evolutionarily conserved in vertebrates. These non-coding RNAs are essential for the initiation of chromosomal DNA replication in vertebrate cells. However thus far, no information is available about Y RNAs in Chinese hamster cells, which have already been used to detect replication origins and alternative DNA structures around these sites. Here, we report the gene sequences and predicted structural characteristics of the Chinese hamster Y RNAs, and analyze their ability to support the initiation of chromosomal DNA replication in vitro. RESULTS: We identified DNA sequences in the Chinese hamster genome of four Y RNAs (chY1, chY3, chY4 and chY5) with upstream promoter sequences, which are homologous to the four main types of vertebrate Y RNAs. The chY1, chY3 and chY5 genes were highly conserved with their vertebrate counterparts, whilst the chY4 gene showed a relatively high degree of diversification from the other vertebrate Y4 genes. Molecular dynamics simulations suggest that chY4 RNA is structurally stable despite its evolutionarily divergent predicted stem structure. Of the four Y RNA genes present in the hamster genome, we found that only the chY1 and chY3 RNA were strongly expressed in the Chinese hamster GMA32 cell line, while expression of the chY4 and chY5 RNA genes was five orders of magnitude lower, suggesting that they may in fact not be expressed. We synthesized all four chY RNAs and showed that any of these four could support the initiation of DNA replication in an established human cell-free system. CONCLUSIONS: These data therefore establish that non-coding chY RNAs are stable structures and can substitute for human Y RNAs in a reconstituted cell-free DNA replication initiation system. The pattern of Y RNA expression and functionality is consistent with Y RNAs of other rodents, including mouse and rat

Distribution of Metastatic Nodes in N0-1 Patients with Tonsillar Squamous Cell Carcinoma and Its Implications for Selective Neck Dissection

Objective:We aimed to evaluate the pattern of neck metastasis in patients with primary tonsillar carcinoma treated by primary surgery and neck dissection. Impact of the extent of neck dissection and level of metastatic nodes on survival were also evaluated.Methods:We evaluated 163 consecutive patients with tonsillar squamous cell carcinoma submitted for neck dissection and staged as cN0-1. Selective neck dissection was performed using a template encompassing levels I-III, whereas radical neck dissection led to the removal at levels I-V. For each patient, number of metastatic nodes, their distribution, and data regarding postoperative treatment and oncologic outcomes were analyzed.Results:Occult neck metastasis at levels I, IV, and V were rare with two cases each. In the clinically negative (cN0) patients, there were no cases of metastasis at level V and two cases at level I or IV. The extent of neck dissection and level of metastatic nodes had no impact on disease-specific survival or neck recurrence.Conclusion:We conclude that in cN0 patients, removal at levels II and III is mandatory but levels I, IV, and V may be spared

Clinical practice guidelines in Brazil : developing a national programme

In Brazil, governmental and non-governmental organisations develop practice guidelines (PGs) in order to optimise patient care. Although important improvements have been made over the past years, many of these documents still lack transparency and methodological rigour. In order to conduct a critical analysis and define future steps in PG development in Brazil, we carried out a structured assessment of strengths, weaknesses, opportunities and threats (SWOT analysis) for the development of a national guideline programme. Participants consisted of academia, methodologists, medical societies and healthcare system representatives. In summary, the PG development process has improved in Brazil and current investments in methodological research and capacity-building are ongoing. Despite the centralised processes for public PGs, standardised procedures for their development are not well established and human resources are insufficient in number and capacity to develop the amount of trustworthy documents needed. Brazil’s capacity could be strengthened and initial efforts have been made such as the adoption of standards proposed by world-renowned institutions in PG development and enhancement of the involvement of key stakeholders. Further steps involve the alignment between health technology assessment and PG processes for synergy and the development of a national network to promote the interaction between groups involved in the development of PGs. The lessons learned from this paper could be used to foster debate on guideline development, especially for countries facing similar threats on this topic

Fault-tolerant aggregation: Flow-Updating meets Mass-Distribution

Flow-Updating (FU) is a fault-tolerant technique that has proved to be efficient in practice for the distributed computation of aggregate functions in communication networks where individual processors do not have access to global information. Previous distributed aggregation protocols, based on repeated sharing of input values (or mass) among processors, sometimes called Mass-Distribution (MD) protocols, are not resilient to communication failures (or message loss) because such failures yield a loss of mass. In this paper, we present a protocol which we call Mass-Distribution with Flow-Updating (MDFU). We obtain MDFU by applying FU techniques to classic MD. We analyze the convergence time of MDFU showing that stochastic message loss produces low overhead. This is the first convergence proof of an FU-based algorithm. We evaluate MDFU experimentally, comparing it with previous MD and FU protocols, and verifying the behavior predicted by the analysis. Finally, given that MDFU incurs a fixed deviation proportional to the message-loss rate, we adjust the accuracy of MDFU heuristically in a new protocol called MDFU with Linear Prediction (MDFU-LP). The evaluation shows that both MDFU and MDFU-LP behave very well in practice, even under high rates of message loss and even changing the input values dynamically.- A preliminary version of this work appeared in [2]. This work was partially supported by the National Science Foundation (CNS-1408782, IIS-1247750); the National Institutes of Health (CA198952-01); EMC, Inc.; Pace University Seidenberg School of CSIS; and by Project "Coral - Sustainable Ocean Exploitation: Tools and Sensors/NORTE-01-0145-FEDER-000036" financed by the North Portugal Regional Operational Programme (NORTE 2020), under the PORTUGAL 2020 Partnership Agreement, and through the European Regional Development Fund (ERDF).info:eu-repo/semantics/publishedVersio

The trend and direct costs of screening and chemotherapy treatment of breast cancer in the new coronavirus pandemic: total and interrupted time series study

Abstract Background The COVID-19 pandemic has overloaded the healthcare systems of many countries and reduced the population’s access to treatment and prevention of other diseases. This study aims to assess whether the COVID-19 pandemic has negatively interfered with the trend and the direct costs of screening and chemotherapy treatment of breast cancer in a public and universal healthcare system. Method This was an ecological time series study using an open database of a public and universal health system from 2017 to 2021. Results In 2020, there was a 41% reduction in the coverage rate of breast cancer screening in women aged 50 to 69 years (about 1 million mammograms missed). The total direct cost of breast cancer screening reduced proportionally to the number of tests (BRL 67 million). On the other hand, the cost of chemotherapy treatment was higher in 2020, both in advanced (BRL 465 million) and localized (BRL 113 million) diseases. In the time series, mammograms’ trend and direct costs changed from stationary to decreasing after the COVID-19 pandemic. The trend of direct costs with chemotherapy treatment for the advanced disease has been increasing and has not changed after the COVID-19 pandemic. On the other hand, in the case of localized disease, there was a trend toward reducing direct costs after the pandemic. Conclusion After COVID-19, there was a downward trend in breast cancer screening and its direct costs, an upward trend in chemotherapy costs for advanced disease, and a downward trend in chemotherapy costs for localized disease