Estudio retrospectivo de errores de inmunización reportados en un Sistema de Información en línea

Objetivo: analizar los errores de inmunización reportados en un Sistema de Información en línea. Método: estudio retrospectivo realizado con datos del Sistema de Información de Vigilancia de Eventos Adversos Posteriores a la Vacunación. Los errores de inmunización se analizaron con respecto a las características demográficas y el proceso de vacunación. Se calcularon las frecuencias y las tasas de incidencia de errores. Se utilizaron pruebas binomiales y de chi-cuadrado para verificar las diferencias en las proporciones de las variables. Resultados: se analizaron 501 errores, la mayoría con dosis de rutina (92,6%), sin evento adverso posterior a la vacunación (90,6%) y en niños menores de cinco años (55,7%). Los tipos de errores más frecuentes fueron la insuficiencia en la indicación del inmunobiológico (26,9%), el intervalo inadecuado entre las dosis (18,2%) y el error en la técnica de administración (14,2%). La tasa de incidencia de error global fue de 4,05/100.000 dosis aplicadas; las mayores incidencias de las vacunas de rutina fueron para la vacuna contra la rabia humana, el virus del papiloma humano y el triple viral; La tasa de incidencia de errores con los eventos adversos posteriores a la vacunación fue de 0,45/100.000 dosis aplicadas. Conclusión: se encontró que los errores de inmunización son una realidad que deben enfrentar los sistemas de salud, pero se pueden prevenir mediante intervenciones como la adopción de protocolos, checklists y educación permanente en salud.Objetivo: analisar os erros de imunização notificados em um Sistema de Informação on-line. Método: estudo retrospectivo realizado com dados do Sistema de Informação da Vigilância de Eventos Adversos Pós-Vacinação. Os erros de imunização foram analisados com relação às características demográficas e ao processo de vacinação. Foram calculadas frequências e taxas de incidência dos erros. Os testes binomial e qui-quadrado foram utilizados para verificar diferenças nas proporções das variáveis. Resultados: foram analisados 501 erros, a maioria envolvendo doses de rotina (92,6%), sem Evento Adverso Pós-Vacinação (90,6%) e em crianças menores de cinco anos (55,7%). Os tipos de erros mais frequentes foram inadequação na indicação do imunobiológico (26,9%), intervalo inadequado entre doses (18,2%) e erro na técnica de administração (14,2%). A taxa de incidência global de erros foi de 4,05/100.000 doses aplicadas; as maiores incidências das vacinas de rotina foram para vacina antirrábica humana, papiloma vírus humano e tríplice viral; a taxa de incidência de erros com Eventos Adversos Pós-Vacinação foi de 0,45/100.000 doses aplicadas. Conclusão: verificou-se que erros de imunização são uma realidade a ser enfrentada pelos sistemas de saúde, porém são passíveis de prevenção por meio de intervenções como adoção de protocolos, checklists e educação permanente em saúde.Objective: to analyze the immunization errors reported in an online Information System. Method: retrospective study conducted with data from the Adverse Event Following Immunization Surveillance Information System. Immunization errors were analyzed with respect to demographic characteristics and the vaccination process. Frequencies and error incidence rates have been calculated. Binomial and chi-square tests were used to verify differences in the proportions of the variables. Results: 501 errors were analyzed, the majority involving routine doses (92.6%), without Adverse Event Following Immunization (90.6%) and in children under five years old (55.7%). The most frequent types of errors were inadequacy in the indication of the immunobiological (26.9%), inadequate interval between doses (18.2%) and error in the administration technique (14.2%). The overall error incidence rate was 4.05/100,000 doses applied; the highest incidences of routine vaccines were for human rabies vaccine, human papillomavirus and triple viral; the incidence rate of errors with Adverse Events Following Immunization was 0.45/100,000 doses applied. Conclusion: it was found that immunization errors are a reality to be faced by the health systems, but they are amenable to prevention through interventions such as the adoption of protocols, checklists and permanent education in health

Lacaziosis: immunohistochemical evaluation of elements of the humoral response in cutaneous lesions

Lacaziosis is a cutaneous mycosis caused by the fungus Lacazia loboi, described in different countries of Latin America and prevalent in the Amazon region. The ineffective immune response against the agent seems to be related to a Th2 pattern of cytokines. There are few reports exploring elements of the humoral response in these lesions. Our aim was to investigate some elements focusing on B cells, plasma cells and local expression of IgG and IgM antibodies. Forty skin biopsies of lower limbs were selected. The diagnosis of lacaziosis was based on direct mycological examination and histological analysis. The visualization of fungal cells was improved by using Gridley’s staining. An immunohistochemical protocol was performed to detect the expression of B cells, plasma cells, IgG and IgM. A double staining was performed to explore the presence of yeasts in the cytoplasm of keratinocytes, using an anti-AE1 AE3 antibody over Gridley’s staining. The inflammatory infiltrate consisted of macrophages, multinucleated giant cells, lymphocytes, and fibrosis. Fungal cells were frequent in the stratum corneum and in both, the dermis and, in 50% of the specimens, also in the epidermis. Cells expressing IgG were more abundant when compared to cells expressing IgM. B cells and the presence of IgG might indicate that the humoral response promotes a Th2 immune response resulting in an anti-inflammatory phenotype. Our results lead us to suggest a possible role of B cells and immunoglobulins in the mechanisms of lacaziosis pathogenesis

Are lower limb symmetry and self-reported symptoms associated with functional and neuromuscular outcomes in Brazilian adults with anterior cruciate ligament reconstruction?:A cross-sectional study

INTRODUCTION: After anterior cruciate ligament (ACL) reconstruction, determining readiness to return to participation is challenging. The understanding of which neuromuscular performance parameters are associated with limb symmetry and self-reported symptoms may be useful to improve monitoring the rehabilitation towards adequate decision-making to return.OBJECTIVES: To compare the ACL-operated and injury-free lower limbs regarding functional performance; and to investigate whether lower limb strength and functional performance are associated with self-reported symptoms and functional lower limb symmetry.METHOD: Thirty-four participants were included. Functional performance was assessed by using the Y-Balance test, Single-leg Hop, and Functional Movement Screen. An isokinetic dynamometer was used to evaluate the strength levels in open and closed kinetic chains. The functional lower limb symmetry was calculated considering the single-leg hop test results for each lower limb.RESULTS: There were no differences in dynamic balance (Y-Balance) between the operated and injury-free limbs. The operated limb presented a worst performance in the single-leg hop. Self-reported symptoms prevalence and lower limb symmetry were associated with knee extension strength and functional performance (Y-Balance).CONCLUSION: Individuals submitted to ACL-reconstruction presented worse functional performance in the operated limb compared to the injury-free limb. Both knee strength and dynamic balance were associated with limb symmetry and self-reported symptoms.</p