Feasibility of dried blood spot for hepatitis C diagnosis in vulnerable subjects and people living in remote areas from Brazil.

BACKGROUND: Agile, accessible and cheap diagnosis of hepatitis C virus (HCV) infection is essential to achieve the elimination of this infection, worldwide, as mandated by the World Health Organzation as part of its strategy for 2030. Dried blood spots (DBS) can be an attractive alternative for sample collection among people living in remote areas and vulnerable populations due to the less invasive collection, its biosafety, and storage & transportation of samples at room temperature. DESIGN: This study aims to estimate the usefulness of dried blood spot samples for the diagnosis and the assessment of HCV infection rates in three different settings in Brazil. Cross-sectional analysis of a sample collection from different populations, aiming to assess the performance of the testing algorithms and respective procedures among different populations with diverse background infection rates. METHODS: We reported the evaluation of DBS as alternative samples for detecting anti-HCV in different groups in real life conditions: (I) Vulnerable subjects living in remote areas of Southeast, North and Northeast Brazil (n = 1464); (II) Beauticians (n = 288); (III) People who use non-injectable drugs (n = 201); (IV) patients referred to outpatient care (n = 275). RESULTS: General assay accuracy was 99%, with a weighted kappa value of 0.9, showing an excellent performance. Sensitivities ranged from 87.5% to 100.0% between groups and specificities were above 99.2%. A total of 194 individuals had HCV RNA in serum and concordance of anti-HCV detection in DBS was 98.4%. CONCLUSIONS: DBS samples could be used for anti-HCV detection in different populations recruited in real life conditions and ambulatory settings, with a high overall sensitivity and specificity.

Relationship between levels of mindfulness and substance use pattern / Relação entre níveis de mindfulness e padrão do uso de substâncias

OBJECTIVE: Evaluate the association between levels of mindfulness and sociodemographic characteristics and pattern of drug use of individuals seeking treatment in a University Service Specialized in Substance Use Disorders. METHODS: This is a cross-sectional study with 164 individuals over 18 years of age seeking treatment for the use of psychoactive substances in the June 2018-December 2019 period, using a questionnaire for sociodemographic data, the Mindful Attention Awareness Scale (MAAS) self- -reporting instrument, and the Alcohol, Smoking, and Substance Involvement Screening Test. RESULTS: An association was found between low levels of mindfulness mainly with the individual risk of being a medium/high-risk user of sedative-hypnotic drugs (p = 0.020). A borderline association was also found between MAAS and the risk of the individual being a medium/high risk of alcohol (p = 0.053) and with a more severe pattern of substance use (p = 0.065). CONCLUSION: Individuals seeking treatment for substance use presented impairments in the attentional aspect of mindfulness and levels of mindfulness seem to protect against behaviors related to substance use, especially against the use of high/ moderate risk of sedative-hypnotics.

OBJETIVO: Avaliar a associação entre níveis de mindfulness e características sociodemográficas e padrão do uso de drogas de indivíduos que buscam tratamento em Serviço Universitário Especializado em Transtorno por Uso de Substâncias. MÉTODOS: Estudo de corte transversal de 164 indivíduos acima de 18 anos que buscavam tratamento para uso de substâncias psicoativas no período de junho de 2018 a dezembro de 2019, utilizando questionário para dados sociodemográficos, o instrumento de autorrelato Mindful Attention Awareness Scale (MAAS) e o Alcohol, Smoking and Substance Involvement Screening Test. RESULTADOS: Foi encontrada associação entre baixos níveis de mindfulness principalmente com o risco de o indivíduo ser usuário de médio/alto risco de sedativos-hipnóticos (p = 0,020). Também foi encontrada associação limítrofe entre MAAS com risco de o indivíduo ser usuário de médio/alto risco de álcool (p = 0,053) e com padrão mais grave de uso de substâncias (p = 0,065). CONCLUSÃO: Indivíduos que buscavam tratamento para uso de substâncias apresentaram prejuízos no aspecto atencional de mindfulness, e níveis de mindfulness parecem proteger contra comportamentos relacionados ao uso de substâncias, principalmente contra o uso de alto/moderado risco de sedativos-hipnóticos.

Experience of neighbourhood violence and mental distress in Brazilian favelas: a cross-sectional household survey.

Background: Living in informal settlements with extensive neighbourhood violence has been shown to be linked with poorer mental health. However, there is little evidence as to whether different levels of personal experiences and fears of neighbourhood violence within such settlements affect mental health. This study assessed such personal experiences and fears of residents in favelas in Brazil. We tested whether variations predict mental health symptoms and quality of life, and whether this is independent of the influence of sociodemographic characteristics and poverty. Methods: In a population-based survey of adults living in a group of favelas in Rio de Janeiro, Brazil, we assessed: sociodemographic characteristics; extent of personal experiences and fear of neighbourhood violence; mental health symptoms on the Brief Symptom Inventory; and quality of life on the Manchester Short Assessment of Quality of Life. Univariate and multivariate regressions were fit to predict mental health symptoms and quality of life. Findings: We interviewed 1,211 residents. Both more experiences of neighbourhood violence and more fear of violence predicted higher levels of mental health symptoms and poorer quality of life. In multivariate regression analyses, the associations remained significant after adjusting for the influence of other factors, in particular female gender, younger age, and marked poverty. Interpretation: Even within a context in which the whole population can be exposed to violence and economic disadvantage, individual variations in the experiences of violence still make a significant difference for mental distress and quality of life. Policies to improve mental health and quality of life of residents in informal settlements need to address risk factors separately, most importantly the personal experiences of violence and poverty. Funding: Economic and Social Research Council and Arts and Humanities Research Council in the United Kingdom. Antecedentes: Viver em assentamentos informais, com ampla violência na vizinhança, parece estar associado a piores condições de saúde mental. No entanto, há poucas evidências de que, nestes locais, os diferentes níveis de experiências pessoais e o medo da violência na vizinhança afetem a saúde mental. Este estudo avaliou experiências pessoais e medos de moradores de favelas no Brasil. Testamos se tais variações predizem sintomas de saúde mental e qualidade de vida, e se isso é independente da influência das características sociodemográficas e da pobreza. Métodos: Com base em um inquérito domiciliar de base populacional, realizado com adultos residentes em um grupo de favelas do Complexo da Maré, Rio de Janeiro, Brasil, foram observadas: características sociodemográficas; a extensão das experiências pessoais de exposição à violência e o medo da violência na vizinhança; sintomas de saúde mental, a partir do Inventário de Sintomas Psicopatológicos (BSI); e qualidade de vida, a partir da escala Manchester Short Assessment of Quality of Life (MANSA). Regressões univariadas e multivariadas foram ajustadas para explicar variações nos sintomas de saúde mental e qualidade de vida. Resultados: Entrevistamos 1.211 pessoa adultas residentes na Maré. Tanto maiores níveis de exposição a experiências de violência na vizinhança quanto mais medo dessa violência estiveram relacionados a piores níveis de saúde mental (maior número e intensidade de sintomas no BSI) e pior qualidade de vida. Nas análises de regressão multivariada, tais associações permaneceram significativas mesmo após controlarmos pela influência de outros fatores, em particular sexo (feminino), idade (mais jovem) e pobreza acentuada. Interpretação: Mesmo em um contexto no qual toda a população pode estar exposta à violência e a desvantagens materiais e econômicas, as variações individuais nas experiências de violência ainda assim fazem diferença significativa nas condições de sofrimento mental e qualidade de vida. Políticas para melhorar a saúde mental e a qualidade de vida dos residentes de assentamentos informais, como as favelas, precisam abordar fatores de risco separadamente focando, principalmente, na redução da exposição a experiências pessoais de violência e da pobreza. Financiamento: Economic and Social Research Council (ESRC) e Arts and Humanities Research Council (AHRC), ambos do Reino Unido.

O acesso ao tratamento de usuárias de crack sob a perspectiva dos profissionais de saúde / Access to treatment for women crack users from the perspective of health professionals

RESUMO O consumo de crack é um problema de saúde pública no Brasil. Nesse grupo, as mulheres se encontram em situação de maior vulnerabilidade, em especial, por acessarem menos os serviços de saúde. Por esse motivo, o objetivo deste estudo foi analisar os sentidos do acesso ao tratamento de mulheres usuárias de crack na perspectiva dos profissionais de saúde de um Centro de Atenção Psicossocial - Álcool e Outras Drogas (Caps AD). Trata-se de uma pesquisa de campo, qualitativa, por meio da observação participante (54 visitas) e de 13 entrevistas semiestruturadas com profissionais, realizada durante oito meses de imersão em um Caps AD do Rio de Janeiro. Um software de gerenciamento de dados - o NVivo - foi utilizado para a análise temática. Trabalho aprovado pelo Comitê de Ética e Pesquisa. Para os profissionais, as mulheres vão buscar ajuda porque possuem laços familiares rompidos, precisam de ajuda social devido ao seu contexto de vulnerabilidade e procuram um tratamento direcionado ao seu corpo em falência. Conclui-se como de fundamental importância que o Caps AD ofereça um trabalho desburocratizado e que amplie suas ações no território.

ABSTRACT Crack consumption is a public health problem in Brazil. In this group, women are in a situation of greater vulnerability, especially because they have less access to health services. The aim of this study was to analyze the meanings of access to treatment for women crack users from the perspective of health professionals at a Psychosocial Care Center - Alcohol and Drugs (Caps AD). It is a qualitative field, through participant observation (54 visits) and 13 semi-structured interviews with professionals, carried out during eight months of immersion in a Caps AD in Rio de Janeiro. A data management software - NVivo - was used for thematic analysis. Work approved by the Ethics and Research Committee. For professionals, women will seek help because they have broken family ties, need social help due to their vulnerable context and seek treatment directed at their bankrupt body. It is concluded that it is of fundamental importance that Caps AD offers a job without bureaucracy and that expands its actions in the territory.

Study protocol of personal characteristics and socio-cultural factors associated with mental health and quality of life of residents living in violent territories.

BACKGROUND: Throughout the world, millions of people living in deprived urban environments with frequent experiences of violence are mentally distressed. There is little evidence about which characteristics of people living in such environments are associated with lower or higher levels of mental distress and how they may cope with experiences of violence. METHODS/DESIGN: This study is part of the research project 'Building the Barricades' (ES/S000720/1 ESRC-AHRC GCRF Mental Health 2017), which uses a mixed-method approach. Quantitative and qualitative studies will be conducted in 16 favelas in the area of Maré in Rio de Janeiro, Brazil. The quantitative study consists of a survey of 1200 randomly selected adults living in Maré and of 200 individuals who frequent the open-use drug sites. The survey will assess sociodemographic characteristics, experiences of different forms of violence, physical and mental health status (including drug use) and active participation in cultural consumption and production. In the qualitative study we will conduct 60 in-depth interviews and 8 focus groups of participants selected from respondents to the survey to assess in more detail their experiences of violence and coping strategies. In order to analyze the quantitative data we will use descriptive statistics and explore associations in uni- and multi-variable analyses. Qualitative data will be subjected to thematic analysis. DISCUSSION: This is an exploratory study to identify characteristics and coping strategies that appear to help people to overcome experiences of violence in deprived areas without developing mental distress. The findings could inform policies to reduce mental distress and improve the quality of life of people living in urban areas affected by violence.

Evaluation of accuracy of hepatitis B virus antigen and antibody detection and relationship between epidemiological factors using dried blood spot.

Dried blood spots (DBS) testing might increase the access for Hepatitis B virus (HBV) diagnosis, but little is known about the performance of these assays in real life conditions. This study aims to evaluate the diagnostic accuracy of HBsAg, anti-HBc and anti-HBs detection in DBS in clinical settings and field studies and to evaluate demographic and risk behaviour according the presence of HBsAg and anti-HBc. Paired sera and DBS samples were obtained from 2309 individuals from 3 groups, defined as follows: G1: clinical setting (n = 5-19), G2: general population (n = 1305) and G3: vulnerable individuals that could be more exposed to blood contact (n = 485). Sera and DBS were tested using commercial enzyme immunoassay (EIA), with some modifications added. Using DBS samples, the specificity values were above 90 % for HBsAg and anti-HBc in all groups and for anti-HBs range from 58.6%-85%. HBsAg testing had the best performance in GI (sensitivity = 84.4 %) and among those samples that the paired serum also presented anti-HBc marker (sensitivity = 91.6 %). High sensitivity of anti-HBc testing in DBS samples was observed in GI (80.8 %) and among HBV active cases (HBsAg+/anti-HBc+) (98.4 %). Testing of anti-HBs in DBS showed the highest sensitivity in GIII (65.5 %), in previous HBV exposed and cured individuals and when serum titers were above 100 IU/mL (86.7 %). DBS samples could be used for screening and prevalence studies for HBsAg and anti-HBc, particularly in clinical settings and among HBV active cases in field studies.

Literature review on the implications of decriminalization for the care of drug users in Portugal and Brazil. / Revisão da literatura sobre implicações para assistência de usuários de drogas da descriminalização em Portugal e Brasil.

INTRODUCTION: Substance use problems remain at the core of public concern in countries sharing a common culture and a distinct history like Brazil and Portugal. OBJECTIVE: To describe findings of scientific literature about the implications of drug legislation change for the care of drug users in Brazil and Portugal. METHODS: This is an integrative review of literature that considers inclusion and exclusion criteria, sample selection, analyses and categorization of 21 articles selected that were published in databases PubMed, SciELO and Biblioteca do Conhecimento on-line (B-ON) and included ordinances and laws related to the subject. RESULTS: We observed that production on the repercussions of changes of legislation on care is scarce. Alcohol and tobacco are still a matter of concern in both countries. In Portugal, concerns about heroin-related issues have declined in recent years, but opioids use prevalence rates remain well above those of Brazil. Crack-related problems are a Brazilian reality without parallel in Portugal. In both cases, some actions are in place to change the policy in favor of a reduced repressive approach, with differentiation between users and drug dealers, increased punishment of dealers and reduced punishment of drug users.

Os problemas relacionados ao uso de drogas se mantêm como foco de preocupação em países que têm uma história em comum e trajetórias distintas como Brasil e Portugal. Objetivo: descrever os achados na literatura científica sobre os impactos das mudanças na legislação sobre drogas na assistência a estas pessoas nos dois países. Método: revisão integrativa da literatura, por meio de critérios de inclusão e exclusão, seleção da amostra, análise e categorização dos estudos com a escolha de 21 artigos publicados nas bases PubMed, SciELO e Biblioteca do Conhecimento on-line, mais portarias e leis referentes ao tema. Resultados: Observa-se que é escassa a produção sobre as repercussões das mudanças da legislação para a assistência. Nos dois países, o álcool e o tabaco se mantêm como foco de preocupação. Em Portugal, a preocupação com os problemas relacionados ao uso de heroína diminuiu nos últimos anos, mas as taxas de prevalência do uso de opióides se mantêm muito acima das do Brasil. Os problemas com o crack configuram uma realidade brasileira sem paralelo em Portugal. Em ambos os casos, há iniciativas para a mudança da política em direção à diminuição da abordagem repressiva, com a diferenciação entre usuários e traficantes, o aumento da punição dos traficantes e abrandamento da punição dos usuários.

Revisão da literatura sobre implicações para assistência de usuários de drogas da descriminalização em Portugal e Brasil / Literature review on the implications of decriminalization for the care of drug users in Portugal and Brazil

Resumo Os problemas relacionados ao uso de drogas se mantêm como foco de preocupação em países que têm uma história em comum e trajetórias distintas como Brasil e Portugal. Objetivo: descrever os achados na literatura científica sobre os impactos das mudanças na legislação sobre drogas na assistência a estas pessoas nos dois países. Método: revisão integrativa da literatura, por meio de critérios de inclusão e exclusão, seleção da amostra, análise e categorização dos estudos com a escolha de 21 artigos publicados nas bases PubMed, SciELO e Biblioteca do Conhecimento on-line, mais portarias e leis referentes ao tema. Resultados: Observa-se que é escassa a produção sobre as repercussões das mudanças da legislação para a assistência. Nos dois países, o álcool e o tabaco se mantêm como foco de preocupação. Em Portugal, a preocupação com os problemas relacionados ao uso de heroína diminuiu nos últimos anos, mas as taxas de prevalência do uso de opióides se mantêm muito acima das do Brasil. Os problemas com o crack configuram uma realidade brasileira sem paralelo em Portugal. Em ambos os casos, há iniciativas para a mudança da política em direção à diminuição da abordagem repressiva, com a diferenciação entre usuários e traficantes, o aumento da punição dos traficantes e abrandamento da punição dos usuários.

Abstract Introduction: Substance use problems remain at the core of public concern in countries sharing a common culture and a distinct history like Brazil and Portugal. Objective: To describe findings of scientific literature about the implications of drug legislation change for the care of drug users in Brazil and Portugal. Methods: This is an integrative review of literature that considers inclusion and exclusion criteria, sample selection, analyses and categorization of 21 articles selected that were published in databases PubMed, SciELO and Biblioteca do Conhecimento on-line (B-ON) and included ordinances and laws related to the subject. Results: We observed that production on the repercussions of changes of legislation on care is scarce. Alcohol and tobacco are still a matter of concern in both countries. In Portugal, concerns about heroin-related issues have declined in recent years, but opioids use prevalence rates remain well above those of Brazil. Crack-related problems are a Brazilian reality without parallel in Portugal. In both cases, some actions are in place to change the policy in favor of a reduced repressive approach, with differentiation between users and drug dealers, increased punishment of dealers and reduced punishment of drug users.

Utility of oral fluid samples for hepatitis B antibody detection in real life conditions.

BACKGROUND: Hepatitis B virus (HBV) testing in oral fluid samples may provide advantages in diagnosis, screening or prevalence studies, especially among individuals with venous access difficulties. This study aims to optimize one commercially available assay for detecting total anti-HBc marker in oral fluid samples and to evaluate its utility under real life conditions in different settings for the purposes of prevalence and diagnostic studies. METHODS: Oral fluid was collected using a Salivette device and some parameters were initially evaluated: type of elution buffer and sample volume. Thereafter, the utility of oral fluid samples for detection of anti-HBc was evaluated in real life conditions in which, 1296 individuals gave serum and oral fluid samples. All serum samples were submitted to commercial EIAs to detect total anti-HBc, according to the manufacturer's instructions and oral fluid samples according to previous optimization. RESULTS: In optimization evaluation, PBS/BSA 0.5% and 100 µL of oral fluid (volume was two-fold increased compared to serum in EIA) were chosen as transport buffer and sample volume. In the field study, anti-HBc was detected in 211 out of 1296 serum samples giving overall oral fluid sensitivity of 52.6% and specificity of 96%. Concordance was higher in ambulatory setting (67.7) compared to general population (31.8). Mean ± standard deviation values of optical density/cutoff (OD/CO) in serum samples were higher in false-negative oral fluid samples than those seen in true positive samples. Sensitivity was higher in those presenting active infection compared to anti-HBc isolate and past infection. Sensitivity also increased in the ambulatory group when HCV individuals were excluded. CONCLUSIONS: It was possible to optimize a commercial EIA for detecting anti-HBc in oral fluid samples and where the highest concordance was found in ambulatory settings and among individuals with active infection.

The drugs phenomenon from the perspective of nursing students: patterns of consumption, attitudes and beliefs / El fenómeno de las drogas en la perspectiva de los estudiantes de enfermería: perfil del consumo, actitudes y creencias / O Fenômeno das drogas na perspectiva dos estudantes de enfermagem: perfil do consumo, atitudes e crenças

Abstract Objective: To describe and analyze patterns of drug use and abuse of first- and fifth-year undergraduate nursing students and to investigate their attitudes and beliefs regarding drugs and users. Method: A quantitative, descriptive and cross-sectional study of 160 students from the Federal University of the State of Rio de Janeiro was performed. Participants were interviewed using the instruments: ASSIST and NEADA FACULTY SURVEY. Collected data were analyzed with significance being set for p-values < 0.05. Results: Students of the first and the fifth years reported that alcohol had been the most frequently used drug in the previous three months (69.4% and 80.0%, respectively). Students believe they have adequate basic education about drugs however they present a prejudiced view and negative attitudes toward users. Conclusion: The pattern of drug use among students and the lack of education about the care of drug users reinforce the need to review and reformulate course contents and practices on the subject.

Resumen Objetivo: Describir y analizar el perfil del uso y abuso de drogas entre estudiantes de enfermería del primer y quinto años de graduación e investigar sus actitudes y creencias en relación con las drogas y los usuarios. Método: Estudio cuantitativo, descriptivo y transversal, con 160 estudiantes de la Universidade Federal do Estado do Rio de Janeiro, que respondieron a los instrumentos: ASSIST y NEADA FACULTY SURVEY. Los análisis estadísticos se realizaron con un nivel de significancia de p < 0,05. Resultados: Los estudiantes apuntaron el alcohol como la droga más utilizada en los últimos tres meses, del primer y del quinto años, respectivamente (69,4% y 80,0%). Ellos creen tener una educación básica adecuada sobre las drogas, sin embargo, presentan una visión preconcebida y actitudes negativas en relación con los usuarios. Conclusión: El patrón de consumo de drogas entre los estudiantes y el despreparo para atender a los usuarios refuerza la necesidad de revisar y reformular contenidos y prácticas sobre la temática.

Resumo Objetivo: Descrever e analisar o perfil do uso e abuso de drogas entre estudantes de enfermagem do 1º e 5º ano de graduação e investigar suas atitudes e crenças em relação às drogas e aos usuários. Método: Estudo quantitativo, descritivo e transversal, com 160 estudantes da Universidade Federal do Estado Rio de Janeiro, que responderam aos instrumentos: ASSIST e NEADA FACULTY SURVEY. As análises estatísticas foram realizadas com nível de significância de 5%. Resultados: Os estudantes do 1º e 5º ano apontam o álcool como a droga mais usada nos últimos três meses - 69,4% e 80,0% respectivamente. Os estudantes acreditam ter educação básica adequada sobre drogas, porém, apresentam visão preconceituosa e atitudes negativas em relação aos usuários. Conclusão: O padrão de consumo de drogas entre os estudantes e o despreparo para atender usuários reforçam a necessidade de revisar e reformular conteúdos e práticas sobre a temática.

The female crack users: Higher rates of social vulnerability in Brazil.

Female crack users who sought treatment are a hard to find part of the population. We studied sociodemographic and behavioral characteristics of crack users undergoing treatment in psychosocial care centers for alcohol and other drugs in six Brazilian cities. We carried out a cross-sectional study of 816 crack users and collected data with the Addiction Severity Index. Women were more likely to be in vulnerable situations: had worst levels of education, were not receiving money enough to their basic needs; more likely to be HIV positive (10.1%), to report sexual abuse (34%), and to be separated from their children (20%).

Use of androgenic anabolic steroids by patients under treatment for substance use disorder: case series / Uso de esteroides androgênicos anabolizantes por pacientes em tratamento para transtorno por uso de substâncias: relato de casos

ABSTRACT The present study reports several case studies about the use of androgenic-anabolic steroids (AAS) by patients under treatment for substance use disorder (SUD). Ten subjects were interviewed, two women and eight men, ranging from 25 to 43 years old. Regarding treatment regime, eight subjects were inpatients and two, outpatients. ASSIST-WHO and MINI-SUD scales and a semi-structured interview were used as research instruments. Seven subjects reported the use of AAS within fewer than twelve months from the interview date. Mental health professionals did not previously question none of the subjects were about the use of AAS. We discuss the efficacy of the chosen instruments to assess AAS use.

RESUMO Este artigo apresenta uma série de casos relatando o uso de esteroides androgênicos anabolizantes (EAA) por pacientes em tratamento para transtorno por uso de substâncias (TUS). Dez sujeitos foram entrevistados, sendo duas mulheres e oito homens, de 25 a 43 anos de idade. Oito sujeitos encontravam-se em regime de internação e dois sujeitos, em tratamento ambulatorial. Os instrumentos da pesquisa foram as escalas ASSIST-OMS e MINI-TUS, além de uma entrevista semiestruturada. Sete sujeitos informaram o uso de EAA há menos de doze meses da entrevista. Nenhum dos sujeitos havia sido questionado anteriormente sobre o uso de EAA por algum profissional de saúde mental. Discutimos a eficácia das escalas escolhidas em avaliar o uso de EAA.

Poor sensitivity of rapid tests for the detection of antibodies to the hepatitis B virus: implications for field studies

Rapid tests (RTs) can be used as an alternative method for the conventional diagnosis of hepatitis B virus (HBV). This study aims to evaluate antibodies to HBsAg (anti-HBs) and antibodies to HBeAg (anti-HBe) RTs under different Brazilian settings. The following three groups were included: GI: viral hepatitis outpatient services; GII: low resource areas; and GIII: crack users and beauticians. Imuno-rápido anti-HBsAg™ and Imuno-rápido anti-HBeAg™ RTs were evaluated and showed specificities greater than 95% in all groups. The sensitivity values to anti-HBs were 50.38%, 51.05% and 46.73% and the sensitivity values to anti-HBe were 76.99%, 10.34% and 11.76% in the GI, GII and GIII groups, respectively. The assays had a low sensitivity and high specificity, which indicated their use for screening in regions endemic for HBV.

Poor sensitivity of rapid tests for the detection of antibodies to the hepatitis B virus: implications for field studies.

Rapid tests (RTs) can be used as an alternative method for the conventional diagnosis of hepatitis B virus (HBV). This study aims to evaluate antibodies to HBsAg (anti-HBs) and antibodies to HBeAg (anti-HBe) RTs under different Brazilian settings. The following three groups were included: GI: viral hepatitis outpatient services; GII: low resource areas; and GIII: crack users and beauticians. Imuno-rápido anti-HBsAg™ and Imuno-rápido anti-HBeAg™ RTs were evaluated and showed specificities greater than 95% in all groups. The sensitivity values to anti-HBs were 50.38%, 51.05% and 46.73% and the sensitivity values to anti-HBe were 76.99%, 10.34% and 11.76% in the GI, GII and GIII groups, respectively. The assays had a low sensitivity and high specificity, which indicated their use for screening in regions endemic for HBV.

Alcoolismo após cirurgia bariátrica: relato de caso / Alcoholism following bariatric surgery: case report

RESUMO Objetivo Discutir, a partir do relato de um caso de alcoolismo iniciado após tratamento cirúrgico de obesidade mórbida, a hipótese da “transferência de compulsão”. Segundo essa teoria, obesos submetidos à cirurgia bariátrica tendem a transferir sua “compulsão” dos alimentos para o álcool ou outras drogas, aumentando o risco de desenvolvimento de transtornos relacionados a substâncias. Evidências de que a alimentação hedônica (caracterizada pelo consumo exagerado de alimentos palatáveis na ausência de fome) é regulada pelos mesmos sistemas cerebrais envolvidos no alcoolismo, aliadas a relatos anedóticos de alcoolismo após cirurgia bariátrica, alimentam essa hipótese. Métodos Relato de caso individual. O paciente concordou com a publicação do relato de caso e assinou um Termo de Consentimento Livre e Esclarecido. Resultados Homem de 25 anos, sem histórico prévio de abuso de álcool, evoluiu com alcoolismo grave quatro anos após a cirurgia bariátrica. Havia antecedentes familiares de transtornos relacionados a substâncias. Conclusão A cirurgia bariátrica (particularmente com derivação em Y de Roux) pode alterar o metabolismo do etanol e implicar mudanças no estilo de vida e no nível de estresse. Somados, esses fatores podem contribuir para o surgimento de padrões nocivos de consumo de álcool; entretanto, é incontestável que a correção da obesidade traz enormes benefícios para as diversas áreas da vida do paciente. A detecção de fatores de risco para abuso e dependência alcoólica, como história familiar positiva, é essencial para identificar pacientes que necessitarão maior aconselhamento pré-operatório e seguimento pós-operatório cuidadoso.

ABSTRACT Objective To discuss, based on the report of a case of alcoholism that started after surgical treatment of morbid obesity, the idea of the “transfer of compulsion”. According to this theory, obese people subjected to bariatric surgery tend to transfer their “compulsion” from food to alcohol or other drugs, increasing the risk of developing substance-related disorders. Evidence that hedonic feeding behavior (described as overeating of palatable foods in the absence of hunger) is regulated by the same brain systems involved in alcoholism, allied to anecdotal reports of alcoholism after bariatric surgery, serve to support this hypothesis. Methods Single case report. Patient agreed with the publication of the case report and signed the Informed Consent Form. Results 25 year-old male, with no history of alcohol abuse, developed heavy drinking habits four years after bariatric surgery. There was family history of substance-related disorders. Conclusion Bariatric surgery (particularly Roux-en-Y gastric bypass) may alter ethanol metabolism and implicate changes in life style and stress levels. Put together, these factors can contribute to the development of harmful alcohol consumption patterns that need to be considered in contrast with the great benefits that surgical correction of obesity brings to several areas of patient’s life. Detecting risk factors for alcohol abuse and dependency, such as positive family history, is essential to identify patients who will need greater pre-operative counselling and careful post-operative follow-up.

Evaluating HBsAg rapid test performance for different biological samples from low and high infection rate settings & populations.

BACKGROUND: Rapid tests (RTs) might have several advantages over standard laboratory procedures, increasing access to diagnosis, especially among vulnerable populations and/or those living in remote areas. The aim of this study was to evaluate the performance of RTs for the detection of hepatitis B virus surface antigen (HBsAg) in samples from different populations/settings. METHODS: Three RTs for HBsAg detection (Vikia® HBsAg, HBsAg Teste Rápido®, and Imuno-Rápido HBsAg®) and different biological specimens (serum, whole blood, and saliva) were evaluated. Analyses comprised a reference panel and samples from field studies targeting suspected cases of hepatitis B virus (HBV) (G I), individuals living in deprived areas (G II), and highly vulnerable individuals (G III). Enzyme immunoassay (EIA) was defined as the gold standard in this study. Reproducibility, repeatability, and cross-reactivity with other infectious agents such as dengue, immunodeficiency (HIV), and hepatitis C (HCV) viruses and T. pallidum were determined. RESULTS: For the reference panel, the sensitivity and specificity of all HBsAg RTs were higher than 93.00 %. G I presented the highest kappa values for all rapid assays using sera samples. When using serum, the sensitivity values were higher than 93.40 for G I, 60.00 % for G II and 66.77 % for G III, and the specificity values were higher than 99.50 for GI, 97.20 for G II and 99.10 % for G III for all tests. For whole blood samples & the Vikia® HBsAg assay, the best performance was achieved for GIII (k = 79.75 %). For saliva samples, the Imuno-Rápido HBsAg® assay showed the highest concordance values with EIA for G I (40.68 %) and G II (32.20 %). The reproducibility and repeatability of all RTs for serum and saliva were excellent, and the concordance between HBsAg EIAs and RTs using samples reactive with other infectious agents varied from 70.10 % to 100.00 %. CONCLUSIONS: The overall performance of RTs for HBsAg in serum was high/moderately high for all groups, thereby promoting increased access to HBV diagnosis among vulnerable populations as well as samples from individuals in emergency settings or remote areas. Rapid tests for HBsAg using whole blood could be used in prevalence studies, though these assays should not be used for saliva samples.

Crack cocaine users living on the streets - gender characteristics.

The increase in the use of crack cocaine constitutes a challenge to public health in Brazil. The objectives of this article are to identify how gender relations are constituted in the daily lives of crack users, and to analyze the dynamics that permeate the construction of these relationships involving exchange and power. This is a qualitative, descriptive, exploratory study of phenomenological orientation. The data was collected from crack users living on the streets in the Manguinhos community in the city of Rio de Janeiro. Eight focus groups (n = 31) were conducted and there were two individual interviews between June and August 2011. In the groups, the reports of the young men and women differed in terms of the establishment of bonds of affection; in the role attributed to crack as an operator in conflict mediation; in the use of the body as exchange/prostitution; and in the generation and care of offspring. Some shifts were observed with respect to traditional and hierarchical arrangements of gender. The study of the relationships established in this research reveals that it is not possible to point to simply perpetrators or victims. What emerges in the analysis is a plural and fluid universe, which is in permanent construction, with shifts that sometimes favor women and sometimes favor men.

Usuários de crack em situação de rua – características de gênero / Crack cocaine users living on the streets – gender characteristics

O aumento do uso de crack tem se constituído em um desafio para a saúde pública no Brasil. Os objetivos deste artigo são identificar como se constituem as relações de gênero no cotidiano dos usuários de crack; e analisar a dinâmica que permeia a construção destas relações que envolvem troca e poder. Estudo qualitativo, descritivo, exploratório, de orientação fenomenológica. Dados coletados com usuários de crack em situação de rua, na comunidade de Manguinhos, no Rio de Janeiro. Realizados oito grupos focais (n = 31) e duas entrevistas individuais, entre Junho e Agosto de 2011. Nos grupos, os relatos dos rapazes e moças investigados diferiram quanto ao estabelecimento dos vínculos de afeto; no papel atribuído ao crack como operador na mediação de conflitos; no uso do corpo como moeda de troca/prostituição e na geração e cuidado da prole. Foram observados alguns deslocamentos com relação aos acordos tradicionais e hierárquicos de gênero. O estudo das relações estabelecidas na pesquisa revela que não é possível apontar para algozes ou vítimas. O que surge nas análises é um universo plural e fluido, em permanente construção, com deslizamentos que privilegiam ora as mulheres e ora os homens.

The increase in the use of crack cocaine constitutes a challenge to public health in Brazil. The objectives of this article are to identify how gender relations are constituted in the daily lives of crack users, and to analyze the dynamics that permeate the construction of these relationships involving exchange and power. This is a qualitative, descriptive, exploratory study of phenomenological orientation. The data was collected from crack users living on the streets in the Manguinhos community in the city of Rio de Janeiro. Eight focus groups (n = 31) were conducted and there were two individual interviews between June and August 2011. In the groups, the reports of the young men and women differed in terms of the establishment of bonds of affection; in the role attributed to crack as an operator in conflict mediation; in the use of the body as exchange/prostitution; and in the generation and care of offspring. Some shifts were observed with respect to traditional and hierarchical arrangements of gender. The study of the relationships established in this research reveals that it is not possible to point to simply perpetrators or victims. What emerges in the analysis is a plural and fluid universe, which is in permanent construction, with shifts that sometimes favor women and sometimes favor men.

Who seeks public treatment for substance abuse in Brazil? Results of a multicenter study involving four Brazilian state capitals / Quem procura tratamento para abuso de substância na rede pública no Brasil? Resultados de um estudo multicêntrico envolvendo quatro capitais brasileiras

OBJECTIVE: To assess the characteristics of alcohol and drug users who seek treatment at the Brazilian Unified Health System in Brazil. METHOD: A multicenter cross-sectional study involving five clinical and research centers located in four Brazilian state capitals was conducted with 740 in- and outpatients. The only exclusion criterion was the presence of neurological or severe psychiatric symptoms at the moment of the interview. The Addiction Severity Index (ASI-6) and the Alcohol, Smoking and Substance Involvement Screening Test (ASSIST) were used to assess the severity of substance use and the problems related. RESULTS: There were significantly more men than women in the sample; mean age was 36 years. The drug most frequently used at all sites was alcohol (78%), followed by cocaine/crack (51%). Alcohol was the drug that most commonly motivated treatment seeking, at all centers. ASI-6 Summary Scores for Recent Functioning (SS-Rs) were quite similar among centers. SS-Rs were compared between users who had never received treatment for psychoactive substance abuse (n = 265, 36.1%) and those who had already been treated at one or more occasions (n = 470, 63.9%). This analysis revealed significant differences between the groups in the drug, psychiatric symptoms, legal, and family/social problems areas (p < 0.05). CONCLUSION: Our findings confirm previous evidence suggesting that the management of patients seeking drug abuse treatment should take several different aspects into consideration, e.g., education, employment, and family relationships, which often appear as areas of concern for these individuals (AU)

OBJETIVO: Avaliar as características dos usuários de álcool e drogas que procuram tratamento no Sistema Único de Saúde. MÉTODO: Estudo transversal multicêntrico envolvendo cinco centros clínicos/de pesquisa localizados em quatro capitais brasileiras foi realizado com 740 pacientes hospitalizados e ambulatoriais. O único critério de exclusão foi a presença de sintomas neurológicos ou psiquiátricos graves no momento da entrevista. A Escala de Gravidade de Dependência (Addiction Severity Index, ASI-6) e o teste ASSIST (Alcohol, Smoking and Substance Involvement Screening Test) foram utilizados para avaliar a severidade do uso de substância e problemas relacionados. RESULTADOS: Houve significativamente mais homens do que mulheres na amostra; a idade média foi de 36 anos. A droga mais usada em todos os centros foi o álcool (78%), seguido de cocaína/crack (51%). O álcool foi a droga que mais motivou procura por tratamento, em todos os centros. Os Escores Resumidos da ASI-6 para Funcionamento Recente (SS-Rs) foram bastante similares nos centros. SS-Rs foram comparados entre usuários que nunca haviam recebido tratamento para abuso de substâncias (n = 265, 36,1%) e aqueles que já haviam sido tratados uma ou mais vezes (n = 470, 63,9%). Foram observadas diferenças significativas entre os grupos nas áreas de droga, sintomas psiquiátricos e problemas legais e familiares/sociais (p < 0,05). CONCLUSÕES: Nossos dados confirmam evidências prévias de que o manejo de pacientes que procuram tratamento para abuso de substância deve levar em conta vários aspectos, como educação, emprego e relações familiares, que normalmente geram preocupação nesses indivíduos (AU)

Exploring sex differences in drug use, health and service use characteristics among young urban crack users in Brazil.

INTRODUCTION: Studies have shown important gender differences among drug (including crack) users related to: drug use patterns; health risks and consequences; criminal involvement; and service needs/use. Crack use is prevalent in Brazil; however, few comparative data by sex exist. We examined and compared by sex key drug use, health, socio-economic indicators and service use in a bi-city sample of young (18-24 years), regular and marginalized crack users in Brazil. METHODS: Study participants (total n = 159; n = 124 males and n = 35 females) were recruited by community-based methods from impoverished neighborhoods in Rio de Janeiro and Salvador. Assessments occurred by an anonymous interviewer-administered questionnaire and serum collection for blood-borne virus testing between November 2010 and June 2011. Descriptive statistics and differences for key variables by sex were computed; in addition, a 'chi-squared automatic interaction detector' ('CHAID') analysis explored potential primary factors differentiating male and female participants. RESULTS: Most participants were non-white, and had low education and multiple income sources. More women had unstable housing and income from sex work and/or panhandling/begging, whereas more men were employed. Both groups indicated multi-year histories of and frequent daily crack use, but virtually no drug injection histories. Men reported more co-use of other drugs. More women were: involved in sex-for-drug exchanges; blood-borne virus (BBV) tested and HIV+. Both groups reported similar physical and mental health patterns; however women more commonly utilized social or health services. The CHAID analysis identified sex work; paid work; begging/panhandling; as well as physical and mental health status (all at p < 0.05) as primary differentiating factors by sex. CONCLUSIONS: Crack users in our study showed notable differences by sex, including socio-economic indicators, drug co-use patterns, sex risks/work, BBV testing and status, and service utilization. Results emphasize the need for targeted special interventions and services for males and female crack users in Brazil.