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1.
Rev. bras. anal. clin ; 53(2): 167-174, 20210630. ilus, tab, graf
Article in Portuguese | LILACS | ID: biblio-1352925

ABSTRACT

A soroprevalência do SARS-CoV-2 foi determinada a partir de um inquérito epidemiológico transversal realizado no Hospital Universitário Gaffrée e Guinle, na cidade do Rio de Janeiro, Brasil, nos meses de outubro a novembro de 2020, durante a pandemia de COVID-19, na população de funcionários que exercia atividade laboral naquele período. A caracterização sociodemográfica foi realizada, além da análise das associações entre as variáveis de interesse ou exposição com a infecção pelo SARS-CoV-2, para estabelecer quais sinais e sintomas foram de maior prevalência. Para o estudo foram coletadas amostras de sangue e utilizados ensaios imunocromatográficos (COVID-19 IgG/IgM ECO Test® e Medtest® Coronavírus (COVID-19) IgG/IgM), para detectar IgG e IgM anti-SARS-CoV-2. Um cálculo amostral obtendo-se 391 profissionais de saúde demonstrou que 173 (44,2%) indivíduos apresentaram ao menos um resultado positivo para infecção pelo SARS-CoV-2. Não houve diferença significativa entre as medianas das idades dos pacientes que apresentaram infecção pelo SARS-CoV-2 (mediana 40 anos, IIQ 34-53) e dos que não apresentaram infecção (mediana 39 anos, IIQ 32-49), valor de P= 0,148. Também não houve diferença entre o sexo dos profissionais com infecção e sem infecção pelo SARS-CoV-2 (OR = 1,02; IC 95% 0,59 ­ 1,78). Dos 173 profissionais que apresentaram infecção pelo SARS-CoV-2, 70 (40,5%) relataram sintomas relacionados à COVID-19, enquanto 41 (23,7%) profissionais relataram que não apresentaram nenhum sintoma e 62 (35,8%) não informaram sobre presença ou não de sintomas, sendo excluídos da análise. Os sintomas mais frequentemente apresentados pelos profissionais infectados foram: cefaleia 46,5% (59/127); perda de olfato 32,3% (41/127); perda de paladar 30,7% (39/127); tosse seca 27,6% (35/127); diarreia 24,4% (31/127); dores no corpo 27,6% (35/127); outros 13,4% (17/127); dores nas pernas 11,8% (15/127); tonteira 11,8% (15/127) e febre 9,4% (12/127). Estabelecer um protocolo de vigilância com um teste fácil e rápido para as políticas de COVID-19 entre os profissionais na linha de frente e atuantes na assistência é imperativo para o controle da transmissão de SARS-CoV-2 e definir critérios epidemiológicos que orientem a tomada de decisão quanto ao isolamento de profissionais infectados sintomáticos e assintomáticos.


The seroprevalence of SARS-CoV-2 was determined from a cross-sectional epidemiological survey carried out at the Gaffrée and Guinle University Hospital in the city of Rio de Janeiro, Brazil from October to November 2020 during the COVID-19 pandemic in the population of employees who worked in that period. Sociodemographic characterization was performed in addition to the analysis of associations between the variables of interest or exposure with SARS-CoV-2 infection to establish which signs and symptoms were more prevalent. For the study, blood samples were collected and immunochromatographic assays (COVID-19 IgG/IgM ECO Test® and Medtest® Coronavirus (COVID-19) IgG/IgM) were used to detect IgG and IgM anti-SARS-CoV-2. A sample calculation obtaining 391 health professionals showed that 173 (44.2%) individuals had at least one positive result for SARS-CoV-2 infection. There was no significant difference between the median ages of patients who had SARS-CoV-2 infection (median 40 years, IIQ 34-53) and those who did not have infection (median 39 years, IIQ 32-49), P value = 0.148. There was also no difference between the sex of professionals with and without SARS-COV-2 infection (OR = 1.02; 95% CI 0.59 ­ 1.78). Of the 173 professionals who had SARS-COV-2 infection, 70 (40.5%) reported symptoms related to COVID-19, while 41 (23.7%) professionals reported that they had no symptoms and 62 (35.8%) did not report on the presence or absence of symptoms, being excluded from the analysis. The symptoms most frequently presented by the infected professionals were: headache 46.5% (59/127); loss of smell 32.3% (41/127); loss of taste 30.7% (39/127); dry cough 27.6% (35/127); diarrhea 24.4% (31/127); body pain 27.6% (35/127); another 13.4% (17/127); leg pain 11.8% (15/127); dizziness 11.8% (15/127) and fever 9.4% (12/127). Establish a surveillance protocol with an easy and quick test for COVID-19 policies among frontline and care professionals is imperative to control the transmission of SARS-CoV-2 and define epidemiological criteria that guide the decision-making regarding the isolation of symptomatic and asymptomatic infected professionals.


Subject(s)
Humans , Male , Female , Signs and Symptoms , Seroepidemiologic Studies , Health Surveys , Health Personnel , COVID-19 Testing , SARS-CoV-2 , COVID-19/diagnosis
2.
DST j. bras. doenças sex. transm ; 32: 1-4, jan. 12, 2020.
Article in English | LILACS | ID: biblio-1145611

ABSTRACT

Introduction: The laboratory diagnosis of syphilis is given by a positive treponemal test and a non-treponemal test, with VDRL (Veneral Disease Research Laboratory) being the "gold standard". Objective: To compare two tests commercially validated for biological fluids and analyzed by different operators, in order to assess their performance in detecting high (≥:8) and low (≤1:2) titrations, as well as to determine the agreement between results in paired serum samples from patients with syphilis and living with HIV. Methods: Cross-sectional study, approved by the Research Ethics Committee of the teaching hospital Gaffrée e Guinle (HUGG), under CAAE 66558117.0.0000.5258. The study population was composed by patients diagnosed with syphilis and confirmed by the positivity of one or more treponemal tests. All samples were analyzed simultaneously by two different operators, each using a kit: VDRL WAMA Diagnóstica®, São Carlos, SP, Brazil; VDRL Brás, Laborclin®, Pinhais, PR, Brazil. The SPSS statistical program was used. Results: 110 serum samples from patients diagnosed with syphilis treated at HUGG were analyzed. The frequency of high VDRL titrations among patients, following the VDRL criterion ≥1:8, was practically the same in both tests, with 68% in VDRL Laborclin and 69% in VDRL WAMA (p = 0.87) and VDRL ≤1:2, 80% for WAMA and 83% for Laborclin (p = 0.72). The results of VDRL were tabulated in pairs; then the Cohen's Kappa coefficient of agreement was calculated (Κ) 0.32 (95%CI 0.21­0.41; p<0.00001), as well as the weighted Kappa (Kw) and the intraclass correlation coefficient (ICC) 0.89 (95%CI 0.84­0.92; p<0.00001). The Bland-Altman diagram was also used. We found poor agreement between the VDRL tests when results were nominally concordant, that is, with the same titles in both tests. However, if partial agreement is considered, the interpretation of the magnitude of agreement estimators was almost complete (≥0.80). Conclusion: Reliability and agreement were high between the VDRL tests of both manufacturers when considering the close titrations (up to two dilutions). Further reliability and agreement studies are essential between the non-treponemal tests available and used in Brazil.


Introdução: O diagnóstico laboratorial da sífilis é realizado por meio da positividade de um teste treponêmico e de um teste não treponêmico, sendo o VDRL (do inglês Veneral Disease Research Laboratory) o "padrão ouro". Objetivo: Comparar dois testes comercialmente validados para fluidos biológicos e analisados por operadores diferentes, com o intuito de avaliar o desempenho dos testes em detectar titulações altas (≥ :8) e baixas (≤1:2), bem como determinar a concordância entre ambos os resultados em amostras pareadas de soro de pacientes com sífilis vivendo com HIV. Métodos: Estudo transversal, aprovado pelo Comitê de Ética em Pesquisa do Hospital Universitário Gaffrée e Guinle (HUGG), sob o CAAE: 66558117.0.0000.5258. A população estudada foi a de pacientes que obtiveram o diagnóstico de sífilis confirmado por meio da positividade de um ou mais testes treponêmicos. Todas as amostras foram analisadas simultaneamente por dois operadores diferentes, cada um utilizando um kit: VDRL WAMA Diagnóstica®, São Carlos, SP, Brasil; VDRL Brás, Laborclin®, Pinhais, PR, Brasil. Utilizou-se o programa estatístico SPSS. Resultados: Foram analisadas 110 amostras de soro de pacientes com diagnóstico de sífilis atendidos no HUGG. A frequência de altas titulações de VDRL entre os pacientes, seguindo o critério de VDRL ≥1:8, foi praticamente a mesma em ambos os testes, com 68% no VDRL Laborclin e 69% no VDRL WAMA (p=0,87) e para VDRL ≤1:2, 80% para WAMA e 83% para Laborclin (p=0,72). Os resultados dos títulos de VDRL foram tabulados em pares; em seguida, foram calculados o coeficiente de concordância Kappa de Cohen (Κ) 0,32 (IC95% 0,21­0,41; p<0,00001), o Kappa ponderado (Kw) e o coeficiente de correlação intraclasse (CCI) 0,89 (IC95% 0,84­0,92; p<0,00001), bem como utilizado o diagrama de Bland-Altman. O estudo encontrou fraca concordância entre os testes de VDRL, se considerados os resultados nominalmente concordantes, isto é, com os mesmos títulos em ambos os testes. Entretanto, se considerado a concordância parcial, a interpretação da magnitude dos estimadores de concordância passou a ser quase completa (≥0,80). Conclusão: A confiabilidade e a concordância foram altas entre os testes de VDRL dos dois fabricantes, quando consideradas as titulações próximas (até duas diluições). Mais estudos de confiabilidade e concordância são fundamentais entre os testes não treponêmicos disponíveis e utilizados no Brasil.


Subject(s)
Humans , Syphilis , HIV , Serologic Tests , Cross-Sectional Studies , Morbidity , Hospitals, University
3.
Braz. arch. biol. technol ; 63: e20180742, 2020. tab, graf
Article in English | LILACS | ID: biblio-1132274

ABSTRACT

Abstract This paper proposes an automatic fuzzy classification system for glycemic index, which indicates the level of Diabetes Mellitus type 2. Diabetes is a chronic disease occurred when there is deficiency in insulin production or in its action, or both, causing complications. Neuro-fuzzy systems and Decision Trees are used to obtain, respectively, the numerical parameters of the membership functions and the linguistic based rules of the fuzzy classification system. The results goal to categorize the glycemic index into 4 classes: decrease a lot, decrease, stable and increase. Real database from [1] is used and the input attributes of the system are defined. In addition, the proposed automatic fuzzy classification system is compared with an "expert" fuzzy classification system, which is totally modeled using expert knowledge. From linguistic based rules obtained from fuzzy inference process, new scenarios are simulated in order to obtain a larger data set which provides a better evaluation of the classification systems. Results are promising, since they indicate the best treatment - intervention or comparative - for each patient, assisting in the decision-making process of the health care professional.


Subject(s)
Humans , Diabetes Mellitus, Type 2/classification , Decision Support Techniques , Fuzzy Logic
4.
ABCD (São Paulo, Impr.) ; 30(2): 150-154, Apr.-June 2017. graf
Article in English | LILACS | ID: biblio-885703

ABSTRACT

ABSTRACT Introduction: The frequency of gastric neuroendocrine tumors is increasing. Reasons are the popularization of endoscopy and its technical refinements. Despite this, they are still poorly understood and have complex management. Aim: Update the knowledge on gastric neuroendocrine tumor and expose the future perspectives on the diagnosis and treatment of this disease. Method: Literature review using the following databases: Medline/PubMed, Cochrane Library and SciELO. Search terms were: gastric carcinoid, gastric neuroendocrine tumor, treatment. From the selected articles, 38 were included in this review. Results: Gastric neuroendocrine tumors are classified in four clinical types. Correct identification of the clinical type and histological grade is fundamental, since treatment varies accordingly and defines survival. Conclusion: Gastric neuroendocrine tumors comprise different subtypes with distinct management and prognosis. Correct identification allows for a tailored therapy. Further studies will clarify the diseases biology and improve its treatment.


RESUMO Introdução: A frequência de tumores neuroendócrinos gástricos está aumentando. As razões são a popularização da endoscopia e seus refinamentos técnicos. Apesar disso, os gástricos ainda são pouco compreendidos e têm manejo complexo. Objetivo: Atualizar os conhecimentos nos tumores neuroendócrinos gástricos e expor as perspectivas futuras no diagnóstico e tratamento. Método: Revisão da literatura utilizando as seguintes bases de dados: Medline/PubMed, Cochrane Library e SciELO. Os descritores da busca foram: carcinóide gástrico, tumor neuroendócrino gástrico, tratamento. Dos artigos selecionados, 38 foram incluídos nesta revisão. Resultados: Tumores neuroendócrinos gástricos são classificados em quatro tipos clínicos. A identificação correta do tipo clínico e grau histológico é fundamental, pois a conduta é variável e define a sobrevida. Conclusão: Tumor neuroendócrino gástrico possui diferentes subtipos com tratamento e prognóstico distintos. A identificação correta destes e seu entendimento permite o tratamento individualizado. Estudos futuros ajudarão a esclarecer a biologia desta doença e melhorar o tratamento.


Subject(s)
Humans , Stomach Neoplasms/classification , Stomach Neoplasms/diagnosis , Stomach Neoplasms/therapy , Neuroendocrine Tumors/classification , Neuroendocrine Tumors/diagnosis , Neuroendocrine Tumors/therapy , Algorithms
5.
Rev. ciênc. farm. básica apl ; 38: [9], 01/01/2017. tab, ilus
Article in English | LILACS | ID: biblio-1100225

ABSTRACT

The mineral exploration in the Amazon, has determined impacts for the environment and for the populations exposed to different agents of the production process. The extraction and the beneficiation developed in the state of Amapa left environmental damages and issues that influence the population´s health, such as contamination by metals. Researches have shown that some forms of metals are toxic; causing neurological and genetic complications. The present work considers the toxicological evaluation a fundamental prerequisite in the identification of potential damages to the health. Accordingly, the study´s objective is the investigating of the toxic effects through laboratory analysis in a population group of the Elesbao district in Santana-AP municipality exposed to residues of minerals and metals. In this way, the amount of metals in Elesbao´s water region was evaluated by spectrophotometer, hematological and biochemical tests were accomplished for laboratory evaluation. The paired t-test was applied for statistical evaluation with a significance of 5% (p <0.05). It was concluded that iron and manganese are present in high concentrations in the region water. Hematological and biochemical exams presented statistically relevant alterations. Significant differences in the morphology of the cells were detected by microscopic analysis. This study demonstrates the importance of the investigation of sources of metal exposure and preventing the elimination and minimization of the risks of adverse effects to excessive exposure to multiple metals.(AU)


Subject(s)
Humans , Population , Water/analysis , Biological Monitoring/methods , Mining , Brazil , Environmental Pollution
6.
Cad. psicol. soc. trab ; 9(2): 89-98, dez. 2006. ilus
Article in Portuguese | LILACS | ID: lil-498985

ABSTRACT

A atuação do psicólogo do trabalho envolve estudos em relação aos determinantes e às conseqüências que o sistema de produção gera para a saúde do trabalhador. Porém, muitas vezes, tais estudos têm enfocado apenas os fatores de trabalho restritivos ou negativos que repercutem de forma nefasta no meio organizacional. O diagnóstico e a intervenção do psicólogo têm sido assim pautados em abordagens mais curativas que preventivas, com um olhar focado apenas no entendimento e no controle das conseqüências das condutas dos trabalhadores, expressas nas queixas dos gestores, referentes aos problemas com a produtividade, acidentes de trabalho, doenças ocupacionais etc. A compreensão das situações nas quais se estruturam tais conseqüências não tem recebido a devida importância. Para que a atuação do psicólogo do trabalho não seja reducionista e tenha resultado eficaz, a lógica de seu pensamento não deve apenas centrar-se nas conseqüências das condutas humanas, mas principalmente na identificação das variáveis críticas relacionadas às exigências das tarefas, aos riscos potenciais e adicionais do trabalho, às cargas de trabalho e ao desempenho humano. Sistematizar conhecimento a respeito dos aspectos presentes no processo de diagnóstico e propiciar uma reflexão crítica sobre o exercício do psicólogo do trabalho são os objetivos centrais do presente artigo.


The work psychologist field involves studies about the causes and the consequences that production systems generate for worker' s health. However, these studies often have focused only on restrictive or negative work factors, producing nefarious consequences on the organizational environment. Thus, the psychologist diagnosis and intervention have been based on corrective' s approaches rather than preventive ones, focusing only the understanding and the control of the consequences of workers' conduct, expressed through managers who concern about productivity' s, work accidents' , occupational illness' problems, etc. The understanding of the situations which structure these consequences, do not have been received the appropriate attention. In other that the psychologist action were not reducionist and have effective results, the logical of his thinking must not focus on the human conducts' consequences, but mainly on the identification of critical variables related to task' s requirements, to the potential and additional work risks, to the great quantity of work and to the human performance. Systematize knowledge about the issues involved in the diagnosis process and give a critical reflection about the work psychologist activities, which are the main aims of this paper.


Subject(s)
Psychology , Working Conditions , Workload
7.
s.l; Brasil. Ministerio da Saude. Secretaria de Planejamento; nov. 1987. 17 p.
Monography in Portuguese | LILACS | ID: lil-76137
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