Parturientes adolescentes em Cruzeiro do Sul, Acre, Brasil: características socioeconômicas e obstétricas / Adolescent pregnancy in Cruzeiro do Sul, Acre, Brazil: socioeconomic characteristics, prenatal and obstetric care

Resumo O objetivo do estudo foi investigar as características socioeconômicas e obstétricas de parturientes adolescentes e suas complicações sobre a saúde materna e neonatal. Trata-se de uma análise de dados da linha de base da coorte de nascimentos MINA-Brasil conduzida no município de Cruzeiro do Sul, estado do Acre. Utilizou-se teste qui-quadrado para comparar características das puérperas adolescentes com as adultas e modelos múltiplos de regressão de Poisson com variância robusta para avaliar fatores associados. Entre as puérperas estudadas, 26,2% (IC95%: 24,0-28,4) eram adolescentes. Os fatores associados ao parto na adolescência foram ter nove anos ou menos de estudo (RPaj:1,36; IC95%: 1,14-1,61), pertencer aos menores quartis do índice de riqueza (1° quartil: RPaj:1,40; IC95%: 1,08-1,80) (2° quartil: RPaj:1,37; IC95%: 1,08-1,74), ser primigesta (RPaj:3,69; IC95%: 2,98-4,57), baixo IMC pré-gestacional (RPaj:1,28; IC95%: 1,04-1,57), infecção urinária na gravidez (RPaj:1,25; IC95%: 1,07-1,46) e menos de seis consultas de pré-natal (RPaj:1,42; IC95%: 1,21-1,66). Pobreza, baixa escolaridade, primigestação, baixo IMC pré-gestacional, infecção urinária na gestação e menor número de consultas de pré-natal foram associados ao parto na adolescência em município da região Norte do Brasil.

Abstract The present study aimed to investigate the socioeconomic and obstetric characteristics of adolescent mothers and the complications they cause to maternal and neonatal health. This baseline data analysis of the MINA-Brazil birth cohort was conducted in the municipality of Cruzeiro do Sul, state of Acre, Brazil. The chi-square test was used to compare characteristics of adolescent and adult postpartum women, and multiple Poisson regression models with robust variance were used to assess associated factors. Among the postpartum women, 26.2% (95%CI: 24.0-28.4) were adolescents. Factors associated with childbirth in adolescence included: nine years or less of schooling (adjPR:1.36; 95%CI: 1.14-1.61), belongs to the lowest quartiles of the wealth index (1st quartile: adjPR:1.40; 95%CI: 1.08-1.80) (2nd quartile: adjPR:1.37; 95%CI: 1.08-1.74), primigravidae (adjPR:3.69; 95%CI: 2.98-4.57), low pre-pregnancy BMI (adjPR:1.28; CI95%: 1.04-1.57), urinary tract infection during pregnancy (adjPR:1.25; CI95%: 1.07-1.46) and less than six prenatal consultations (adjPR:1.42; 95%CI: 1.21-1.66). Poverty, little schooling, primigravidae, low pre-pregnancy BMI, urinary tract infection during pregnancy and few prenatal consultations were associated with childbirth during adolescence in a municipality in the Northern region of Brazil.

Efficacy of the 20-minute whole blood clotting test (WBCT20) in the diagnosis of coagulation alteration related to snakebites in a Western Brazilian Amazon hospital

Abstract Introduction: The efficacy of 20-minute whole blood clotting (WBCT20) and the Lee-White clotting time (LWCT) tests in diagnosing coagulation alterations from snakebites were compared. Methods: We evaluated 89 snakebite cases treated at the Hospital Regional do Juruá em Cruzeiro do Sul, Acre, Brazil. Results: WBCT20 results were normal in 33.7% and unclottable in 66.3% of cases, while LWCT results were normal in 23.6% and altered (prolonged or unclottable) in 76.4% of cases, with no significant differences. Conclusions: The WBCT20 is important for rapidly diagnosing coagulation alterations from snakebites. Furthermore, it is efficient, inexpensive, and can be deployed in isolated hospitals.

Association between NDO-LID and PGL-1 for leprosy and class I and II human leukocyte antigen alleles in an indigenous community in Southwest Amazon

The frequencies of the Human leukocyte antigen (HLA) alleles in the Puyanawa indigenous reserve population and their association with the NDO-LID and ELISA PGL-1 rapid serological test was assessed. This was a cross-sectional study with an epidemiological clinical design conducted in two indigenous communities in the state of Acre, Brazil. Blood was collected in a tube with EDTA to identify HLA alleles and perform serological tests. DNA was obtained using the salting out procedure. The LabType™ technique (One-Lambda-USA) was used for HLA class I (loci A*, B* and C*) and II (loci DRB1*, DQA1* and DQB1*) typing. Allele frequency was obtained by direct count, and the chi-square test was used to assess the association with the NDO-LID and PGL-1 tests. The most frequent alleles in the two communities were: HLA-A*02:01, HLA-B*40:02, HLA-DRB1*16:02, HLA-DQA1*05:05 and HLA-DQB1*03:01. The allele HLA-C*04:01 was the most common in the Barão community, and the allele HLA-C*07:01 in Ipiranga. Among individuals who presented seropositivity to the NDO-LID test, the association with alleles HLA-A*02 (43.18% vs 24.8%, p = 0.03, OR = 2.35) and HLA-B*53 (6.83% vs 0.0%, p = 0.03, OR = 8.95) was observed in the Barão community. HLA-B*15 was associated with non-seroconversion to the NDO-LID test in Ipiranga. In both communities, HLA-B*40 and HLA-C*03 were associated with positive serological response to ELISA PGL-1. The HLA class I and II alleles most frequently found in this study have already been described among Terena indigenous groups, and HLA class I contributes to seroconversion to NDO-LID and PGL-1 tests in inhabitants of the Barão and Ipiranga communities(AU).

Epidemiological and clinical aspects of snakebites in the upper Juruá River region, western Brazilian Amazonia

This study addresses the clinical and epidemiological aspects of envenoming cases resulting from snakebites treated at a hospital in Cruzeiro do Sul, in the upper Juruá River region, western Brazilian Amazonia. The specific identity of snakes that caused the envenomings was inferred (a) from the diagnosis of patient symptoms and signs upon hospital admission, (b) by enzyme immunoassay for detection of Bothrops atrox and Lachesis muta venom from serum samples taken from patients before antivenom therapy, or (c) by direct identification of the snake, when it was brought along to the hospital or photographed. There were 133 snakebites (76.2 cases per 100,000 inhabitants) registered during one year (July 2017 to June 2018). Most snakebites (88.7%) were caused by Bothrops spp., and the rest by non-venomous snakes or dry bites. Snakebites tended to occur more often during the rainy season, coinciding with the period of greater reproductive activity of the snakes and greater availability of their prey. In addition, the increase in the water level of rivers and lakes during the rainy season tends to concentrate snakes in dry places and, thus, to increase encounters with humans. Information campaigns on prevention and first aid, specially among the most vulnerable groups (indigenous people, farmers, and children and teenagers in rural areas), and the importance of using protective equipment (boots, leggings, leather gloves) in certain high risk activities (e.g. agriculture and extractivism in forests) are fundamental for the reduction of snakebite morbidity. (AU)

Hepatitis B and Delta: clinical aspects of patients in the Brazilian Western Amazonia / Hepatitis B y Delta: aspectos clínicos de pacientes en el Amazonas brasileño Occidental / Hepatite B e Delta: aspectos clínicos de pacientes na Amazônia Ocidental brasileira

ABSTRACT Objective: to analyze clinical, serological, biochemical and hematological aspects in patients infected with the hepatitis B (HBV) and Delta (HDV) viruses. Method: cross-sectional, descriptive and retrospective study, performed with patients chronically infected with HBV and superinfected with HDV. Results: among the 112 patients selected, 74% were monoinfected with HBV (Group HBV) and 26% were superinfected with HDV (Group HBV+HDV). There was no difference in gender distribution. The average age was 36 years with standard deviation of ±12 years. The symptoms and signs presented a higher proportion in Group HBV+HDV (p=0.001). In both groups, most patients had non-reactive AgHBe. The records of biochemical and hematologic changes showed highest proportion in Group VHB+VHD Group (p<0.05). Conclusion: the study found that patients were in clinical stages of the disease different from those in the initial examination for monitoring their chronic condition. The clinical profile suggests greater severity of liver disease among the patients superinfected with HDV.

RESUMEN Objetivo: Analizar los aspectos clínicos, serológicos, bioquímicos y hematológicos de pacientes infectados por el virus de las hepatitis B (VHB) y Delta (VHD). Método: Se trata de un estudio transversal, descriptivo, retrospectivo, realizado entre pacientes crónicos infectados de VHB y sobre infectados de VHD. Resultados: Entre los 112 pacientes seleccionados, el 74% estaba mono infectado por VHB (Grupo VHB) y el 26%, sobre infectado por VHD (Grupo VHB+VHD). No se encontró diferencia en la distribución por género. La edad promedio era 36 años, con desviación típica de ±12 años. Los síntomas y signos sobresalían en mayor proporción en el grupo VHB+VHD (p=0,001). Para ambos grupos, la mayoría de los pacientes estaba con AgHBe no reactivo. El registro de alteraciones bioquímicas y hematológicas atribuyó proporción más grande al grupo VHB+VHD (p<0,05). Conclusión: El estudio demostró que los pacientes, en la consulta inicial para el seguimiento de la condición crónica, estaban en diferentes estadios clínicos de la enfermedad. El perfil clínico sugiere que la gravedad de la enfermedad hepática es mayor entre pacientes sobre infectados de VHD.

RESUMO Objetivo: Analisar aspectos clínicos, sorológicos, bioquímicos e hematológicos entre pacientes infectados por vírus das hepatites B (VHB) e Delta (VHD). Método: Estudo transversal, descritivo, retrospectivo, realizado com pacientes cronicamente infectados por VHB e superinfectados por VHD. Resultados: Entre os 112 pacientes selecionados, 74% estavam monoinfectados por VHB (Grupo VHB) e 26% superinfectados por VHD (Grupo VHB+VHD). Não houve diferença na distribuição por gênero. A idade média foi de 36 anos, com desvio padrão de ±12 anos. Os sintomas e sinais apresentaram maior proporção no grupo VHB+VHD (p=0,001). Para ambos os grupos, a maioria dos pacientes estava com AgHBe não reagente. O registro de alterações bioquímicas e hematológicas apresentou maior proporção no grupo VHB+VHD (p<0,05). Conclusão: O estudo revelou que os pacientes estavam em diferentes estágios clínicos da doença na consulta inicial para acompanhamento de condição crônica. O perfil clínico sugere maior gravidade da doença hepática entre os pacientes superinfectados por VHD.

Evidências científicas sobre a hepatite Delta no Brasil: revisão integrativa da literatura / Scientific evidence on hepatitis Delta in Brazil: integrative literature review

Resumo Objetivo: Descrever o nível de evidência científica sobre a infecção por vírus da hepatite Delta (VHD) no Brasil. Métodos: Revisão integrativa da literatura, com buscas realizadas nas bases de dados do Medical Literature Analysis and Retrieval System Online, Literatura Latino-americana e do Caribe em Ciências da Saúde, Scientific Eletronic Library Online e Scopus, com análise centrada no nivelamento do rigor metodológico de acordo com o modelo de Melnyk e Fineout-Overholt. Resultados: A busca revelou uma média de duas publicações por ano no intervalo entre 1987 e 2017. Foram selecionados 33 artigos, tendo a maioria (91%) apresentado nível de evidência VI. As publicações ficaram concentradas em periódicos da área de medicina tropical (46%) e virologia (15%). Dos trabalhos, 85% tinha profissional médico com autor e o delineamento mais encontrado foi o descritivo/transversal (69,6%). Conclusão: A produção científica sobre a infecção por VHD no Brasil está centrada em estudos de prevalência, mostrando-se incipiente quanto à produção de estudos com delineamentos mais rígidos como ensaios clínicos.

Abstract Objective: Describe the level of scientific evidence on infections by the hepatitis Delta virus (HDV) in Brazil. Methods: Integrative literature review, with research in the databases of the Medical Literature Analysis and Retrieval System Online, Latin American and Caribbean Center on Health Sciences Information, Scientific Eletronic Library Online and Scopus, with analysis focusing on the leveling of the methodological rigor according to the model of Melnyk and Fineout-Overholt. Results: The search revealed an average of two publications a year between 1987 and 2017. We selected 33 articles, the majority (91%) presented level of evidence VI. The publications were concentrated in the area of tropical medicine (46%) and virology (15%). The authors of 85% of the studies were medical professionals and the most common design was the descriptive/cross-sectional (69.6%). Conclusion: Scientific literature on HDV infections in Brazil is focused on prevalence studies, showing incipiency regarding the production of studies with stricter guidelines, such as clinical trials.

Effectiveness of the Live Births Information System in the Far-Western Brazilian Amazon / Eficácia do Sistema de Informação de Nascidos Vivos na Amazônia Extremo-Ocidental Brasileira

The Live Birth Information System (SINASC) was implemented in 1990 for the purpose of providing information about the live-birth characteristics for the establishment of specific health indicators. This work evaluates the information quality of SINASC in relation to its data completeness and coverage for five municipalities from the State of Acre from 2005 to 2010. Lack of information (not filled out or stated as "unknown") was estimated for each variable. Coverage was estimated comparing the Civil Register office statistics in accordance with the mother's municipality of residence. An increase in incompleteness of the majority of variables was observed, and also a decrease in coverage between 2005 and 2010 in these municipalities. These findings do not tally with results from the majority of studies that use SINASC as a data source. The results of this work highlight the relevance of continuous capacity building and the incentive for accurate and complete data inclusion, as well as awareness of the importance of SINASC for public health policies.

O Sistema de Informação de Nascidos Vivos (SINASC) foi implantado no ano de 1990 com o objetivo de fornecer dados sobre as características de nascidos vivos para o estabelecimento de indicadores de saúde específicos. Objetivo: O presente trabalho avalia a qualidade da informação do SINASC quanto à incompletude dos seus dados e da cobertura para cinco municípios do estado do Acre nos anos de 2005 e 2010. Métodos: Foi calculada a incompletude (definida como dados em branco/ignorado) de cada variável, assim como a cobertura desse sistema através da comparação com as estatísticas do Registro Civil, segundo município de residência da mãe. Resultados: Observou-se um aumento da incompletude da maioria das variáveis e uma diminuição da cobertura de 2005 para 2010 no conjunto dos municípios avaliados, destoando dos resultados obtidos na maioria dos estudos que utilizam o SINASC como fonte de dados. Conclusões: Os resultados deste trabalho apontam para a importância da contínua capacitação e também para o incentivo ao preenchimento dos dados de forma correta e completa, bem como a conscientização da importância do SINASC para as políticas públicas de saúde.

Relationship between oxidative stress and diabetic osteopenia in premenopausal rats / Relação entre o estresse oxidativo ea osteopenia diabética em ratos pré-menopausa

The relationship between lipid peroxidation, antioxidant defense and diabetic osteopenia remains unclear. This study evaluated the relationship among lipid peroxidation index, antioxidant defense parameters and bone metabolism in a premenopausal diabetic model using measures including thiobarbituric acid-reactive substances concentration (TBARS) and reduced glutathione (GSH) content in brain homogenates, histomorphometric analysis, biomechanical testing and bone mineral density (BMD). Female Wistar rats with regular estrous cycle were divided into two groups: Group 1: control rats (n = 15) and Group 2: diabetic rats (n = 15). Diabetes was induced by alloxan and confirmed by glycemia >250 mg/dL. The lipid peroxidation index, measured by TBARS concentration, showed a significant increase (p<0.05) in diabetic animals in comparison to control animals. However, the antioxidant parameter measured by GSH content, was significantly lower (p<0.05) in diabetic animals. Histomorphometric analysis showed a significant increase (p<0.05) in femoral trabecular separation together with a significant decrease (p<0.05) in trabecular thickness, and reduced trabecular bone volume in diabetic rats. Moreover, biomechanical testing and BMD values were significantly lower (p<0.05) in the diabetic group. Thus, our results demonstrated that increased lipid peroxidation and altered antioxidant defense could be related to the development of oxidative stress and diabetic osteopenia in premenopausal rats.

A relação entre peroxidação lipídica, defesa antioxidante e osteopenia diabética permanece obscura. Este estudo avaliou a associação entre índice de peroxidação lipídica, parâmetro de defesa antioxidante e metabolismo ósseo em um modelo diabético pré-menopausa através de medidas como a concentração de substâncias reativas ao ácido tiobarbitúrico (SRAT) e conteúdo de glutationa reduzida (GSH) no homogenato cerebral, análises histomorfométricas, teste biomecânico e densidade mineral óssea (DMO). Ratos Wistar fêmeas com ciclo estral regular foram distribuídos em dois grupos: Grupo 1 - ratas controle (n = 15) e Grupo 2 - ratas diabéticas (n = 15). O diabetes foi induzido pela aloxana e confirmado pela glicemia >250 mg/dL. O índice de peroxidação lipídica, medido pela concentração de SRAT, demonstrou um aumento significativo (p<0.05) nos animais diabéticos, em relação aos animais controle. Entretanto, o parâmetro de defesa antioxidante, mensurado pelo conteúdo de GSH, foi reduzido significativamente (p<0.05) nos animais diabéticos. As análises histomorfométricas mostraram um aumento significativo (p<0.05) da separação trabecular do fêmur, associado à diminuição significativa da espessura trabecular (p<0.05) e volume ósseo trabecular reduzido nas ratas diabéticas. Além disso, o teste biomecânico, medido pela força máxima, e valores de DMO foram reduzidos significativamente (p<0.05) no grupo diabético. Dessa maneira, nossos resultados demonstraram que a peroxidação lipídica aumentada e defesa antioxidante modificada podem estar relacionadas ao desenvolvimento do estresse oxidativo e osteopenia diabética em ratas pré-menopausadas.