Características clínico epidemiológicas de pacientes con Lepra en un centro de referencia

Introducción: La lepra o enfermedad de Hansen es una enfermedad infectocontagiosa, crónica, causada por el bacilo Mycobacterium leprae. Es causante de neuropatía periférica, y afecta a la piel, nervios periféricos, vías aéreas superiores y ojos. El objetivo fue evaluar las características clínicas y sociodemográficas a los pacientes con Lepra que acudieron Hospital Menonita Km 81 de Itacurubi de la Cordillera en los años 2018-2022. Material y Método: Estudio observacional descriptivo. retrospectivo, de corte transversal en pacientes con Lepra del Hospital Menonita Km 81 en la ciudad de Itacurubi de la Cordillera del Departamento de Cordillera del año 2018 al 2022. Los datos se obtuvieron de la revisión de las fichas epidemiológicas de pacientes con diagnóstico de lepra en el período abarcado en un periodo de 5 años, 2018 al 2022. Resultados: Fueron reportados 286 casos de lepra en pacientes provenientes de los 18 departamentos del Paraguay. El año con más casos detectados fue el 2019 con 79 casos, siendo el departamento de Alto Paraná con mayor incidencia con 17 casos diagnosticados, seguido del año 2018 con 76 casos. La ocupación más frecuente de los pacientes fue la agricultura. El sexo más frecuente fue el masculino 203 (71%) casos con lepra. El rango de edad de mayor frecuencia fue entre 49- 63 años de edad (29,56%). El motivo de consulta más frecuente fue el de Mácula en 139 (49%). Conclusión: Se requiere aumentar la calidad de la atención primaria y el compromiso del personal de salud para el control y el diagnóstico oportuno de la Lepra en nuestro país.

Introduction: Leprosy, or Hansen's disease, is a chronic infectious disease caused by Mycobacterium leprae. It causes peripheral neuropathy and affects the skin, peripheral nerves, upper airways, and eyes. The objective was to evaluate the clinical and sociodemographic characteristics to patients with Leprosy who attended Mennonite Hospital Km 81 of Itacurubí de la Cordillera in the years 2018-2022 Material and Method: descriptive observational study, retrospective of cross-sectional in patients with Leprosy of the Mennonite Hospital Km 81 in the city of Itacurubi de la Cordillera of the Department of Cordillera from the year 2018 to 2022. Data were obtained from the review of epidemiological records of patients with a diagnosis of leprosy in the period covered in a period of 5 years, 2018-2022. Results: Of the 18 departments in Paraguay, 286 cases of leprosy were reported. The year with the most cases detected was 2019, with 79 cases, with the department of Alto Paraná having the highest incidence, with 17 cases diagnosed, followed by 2018 with 76 cases. Agriculture was the most common occupation. The most frequent sex was male (203 [71%] patients) with leprosy. The most frequent age range was 49-63 years (29.56%), and the most frequent reason for consultation was macular in 139 patients (49%). Conclusion: It is necessary to increase the quality of primary care and commitment of health personnel in the control and timely diagnosis of leprosy in our country.

Baciloscopia para hanseníase no Sistema Único de Saúde do Brasil entre 2013 e 2022 / Bacilloscopy for leprosy in Brazil's public health system between 2013 and 2022

Objetivo: Avaliar a quantidade anual de baciloscopias para hanseníase realizadas no Sistema Único de Saúde (SUS) nos últimos dez anos. Métodos: Foi realizado um estudo ecológico, longitudinal, retrospectivo e quantitativo, utilizando dados do Sistema de InformaçõesAmbulatoriais (SIA/SUS). A quantidade de baciloscopias para hanseníase a cada 100.000 residentes foi estimada para o Brasil e suas cinco macrorregiões, avaliada entre 2013 e 2022 com nível de significância (a) de 5%. Resultados:Mais de 1,3 milhões de baciloscopias foram notificadas nos últimos dez anos no SUS. A mediana da incidência anual foi de 67 baciloscopias para hanseníase por 100.000 residentes, sendo a máxima observada em 2013 (82) e a mínima em 2022 (46). As incidências anuais nas macrorregiões Norte, Centro-oeste e Nordeste foram significativamente superiores à estimativa nacional, enquanto no Sul e Sudeste foram inferiores (p<0,05). A tendência temporal foi considerada decrescente para a estimativa nacional (p= 0,002), com variação percentualanual de -5,6% (IC95% = -3,8%; -8,2%). Entretanto, após desconsiderar os anos da pandemia de COVID-19 (2020-2022), a tendência tornou-se estacionária (p= 0,181). Além disso, a incidência durante o período pré-pandêmico foi significativamente maior quandocomparada ao terceiro ano após o advento da pandemia em todas as macrorregiões do Brasil (p<0,05). Conclusão:Foi possível concluir que o SUS realizou um número expressivo de baciloscopias para hanseníase nos últimos dez anos, mas existem disparidades macrorregionais no Brasil, bem como um impacto significativo da pandemia de COVID-19

Objective:To evaluate the annual number of skin smear microscopies for leprosy performed in the Unified Health System (SUS) in the last decade. Methods:An ecological, longitudinal, retrospective, and quantitative study was conducted using data from the Ambulatory Information System (SIA/SUS). The number of skin smear microscopies for leprosy per 100,000 residents was estimated for Brazil and its five macroregions, between 2013 and 2022, with a significance level (a) of 5%.Results:More than 1.3 million skin smear microscopies were reported in the last decade in the SUS. The median annual incidence was 67 skin smear microscopies for leprosy per 100,000 residents, with the maximum observed in 2013 (82) and the minimum in 2022 (46). Annual incidences in the North, Central-West, and Northeast macro-regions were significantly higher than the national estimate, whereas in the South and Southeast, they were lower (p <0.05). The temporal trend was considered decreasing for the national estimate (p = 0.002), with an annual percentage variation of -5.6% (95%CI = -3.8%; -8.2%). However, after disregarding the years of the COVID-19 pandemic (2020-2022), the trend became stationary (p = 0.181). Furthermore, the incidence during the pre-pandemic period was significantly higher compared with the third year after the advent of the pandemic in all macro-regions of Brazil (p<0.05).Conclusion:It was possible to conclude that the SUS performed a significant number of skin smear microscopies for leprosy in the last ten years, but there are macro-regional disparities in Brazil and a significant impact of the COVID-19 pandemic

Qualidade de vida de pacientesdurante e após tratamento dehanseníase utilizando o whoqool bref / Quality of life of patients during and after leprosy treatment using the whoqool bref

Objetivo: Avaliar a qualidade de vida de pacientes durante e após o tratamento de hanseníase. Método: Estudo descritivo, exploratório e quantitativo. Realizado através da escala de qualidade de vida WHOQOL-bref. CAAE: 58389422.0.0000.5587. Resultados: Participaram 33 (100%) pacientes que tiveram diagnóstico de Hanseníase, a amostra foi tabulada separando entre dois grupos, 13 (100%) em tratamento ativo e 20 (100%) com tratamento finalizado. Para os pacientes ainda em tratamento: no domínio físico 31% referem boa qualidade de vida e 23% referem ruim, já no meio ambiente, psicológico e relações sociais 08% referem boa qualidade de vida e 23% ruim, respectivamente. Para os participantes com tratamento finalizado, o domínio físico, meio ambiente, psicológico e relações sociais obtiveram 40% com boa qualidade de vida e 05% ruim. Conclusão: os pacientes que finalizaram tratamento apresentam melhor qualidade de vida do que os pacientes em tratamento de hanseníase, demonstrando a importância de realizar o tratamento corretamente.(AU)

Objective: To evaluate the quality of life of patients during and after leprosy treatment. Method: Descriptive, exploratory and quantitative study. It was carried out using the WHOQOL-bref quality of life scale. CAAE: 58389422.0.0000.5587. Results: 33 (100%) patients diagnosed with leprosy took part in the study. The sample was divided into two groups: 13 (100%) in active treatment and 20 (100%) with treatment completed. For patients still undergoing treatment: in the physical domain 31% reported a good quality of life and 23% a poor one, while in the environmental, psychological and social relations domains 08% reported a good quality of life and 23% a poor one, respectively. For participants who had completed treatment, 40% reported good quality of life in the physical, environmental, psychological and social relations domains and 05% reported poor quality of life. Conclusion: Patients who have completed treatment have a better quality of life than patients undergoing leprosy treatment, demonstrating the importance of carrying out treatment correctly.(AU)

Objetivo: Evaluar la calidad de vida de los pacientes durante y después del tratamiento de la lepra. Método: Estudio descriptivo, exploratorio y cuantitativo. Se realizó utilizando la escala de calidad de vida WHOQOL-bref. CAAE: 58389422.0.0000.5587. Resultados: Participaron en el estudio 33 (100%) pacientes diagnosticados de lepra. La muestra se tabuló en dos grupos: 13 (100%) en tratamiento activo y 20 (100%) con tratamiento finalizado. Para los pacientes aún en tratamiento: en el dominio físico el 31% informó de una buena calidad de vida y el 23% de una mala, mientras que en los dominios ambiental, psicológico y de relaciones sociales el 08% informó de una buena calidad de vida y el 23% de una mala, respectivamente. En el caso de los participantes que habían completado el tratamiento, el 40% informó de una buena calidad de vida en los dominios físico, ambiental, psicológico y de relaciones sociales y el 05% informó de una mala calidad de vida. Conclusión: Los pacientes que han completado el tratamiento tienen una mejor calidad de vida que los pacientes en tratamiento contra la lepra, lo que demuestra la importancia de llevar a cabo el tratamiento correctamente.(AU)

Enfermedad de Hansen en un adulto con virus de inmunodeficiencia humana / Hansen's disease in an adult infected with human immunodeficiency virus i: en

Se describe el caso clínico de un paciente infectado por el virus de la inmunodeficiencia humana en fase sintomática precoz, quien fue asistido en el Servicio de Dermatología del Hospital Clínico Quirúrgico Docente Dr. León Cuervo Rubio en Pinar del Río por presentar lesiones eritematosas infiltradas de tres meses de evolución en el miembro inferior derecho, con alteración de la sensibilidad térmica y dolorosa. Se le indicó baciloscopia y estudio histopatológico que confirmaron el diagnóstico de sospecha de lepra dimorfa tuberculoide, por lo que se comenzó a aplicar poliquimioterapia combinada con terapia antirretroviral, lo cual favoreció la evolución del paciente.

The case report of a patient infected by the human immunodeficiency virus in early symptomatic phase is described, who was seen at the Dermatology Service of the Dr. León Cuervo Rubio Teaching Clinical Surgical Hospital of Pinar del Río for presenting infiltrated erythematous lesions of three months of evolution in the right lower limb, with altered pain and thermal sensation. A basiloscopic and histopathologic study was indicated, which confirmed the presumptive diagnosis of borderline tuberculoid leprosy, and therefore polychemotherapy combined with antiretroviral therapy was started, which favored the patient's evolution.

Enfermedad de Hansen / Hansen's Disease

La lepra o enfermedad de Hansen es una infección crónica causada por Mycobacterium leprae (M. leprae) o Mycobacterium lepromatosis (M. lepromatosis), es una enfermedad infecciosa curable que es endémica en más de 140 países de todo el mundo. La Organización Mundial de la Salud lo declaró eliminado como un problema mundial de salud pública en el año 2000, sin embargo, en 2017 se informaron aproximadamente 200 000 casos nuevos en todo el mundo. A pesar de la terapia farmacológica combinada disponible, continúa como un importante problema de salud pública, que conlleva un fuerte estigma. En Cuba, según el Anuario Estadístico de Salud de 2020, se reportaron durante ese año 116 casos, las provincias más afectadas fueron Santiago de Cuba con 25 nuevos casos y Guantánamo con 17 nuevos casos. La presentación de caso se trata de una joven de 20 años, en edad reproductiva, con manifestaciones generales de astenia, pérdida del cabello, adenopatías, poliartritis, lesiones cutáneas y fiebre, que hizo sospechar en una enfermedad del colágeno. En estos momentos con buena evolución y en seguimiento por atención primaria de salud de su provincia(AU)

Leprosy or Hansen's disease is a chronic infection caused by mycobacterium leprae (M. leprae) or mycobacterium lepromatosis (M. lepromatosis). It is a curable infectious disease, endemic in more than 140 countries around the world. Despite being declared eradicated as a global public health problem by the World Health Organization in 2000, approximately 200,000 new cases were reported worldwide in 2017. Despite available combination drug therapy, it remains a major public health problem, carrying strong stigma. In Cuba, according to 2020 health statistical yearbook, 116 cases were reported during that year. The most affected provinces were Santiago de Cuba (25 new cases) and Guantánamo (17 new cases). The case to be reported concerns a 20-year-old young woman of reproductive age, with general manifestations of asthenia, hair loss, adenopathies, polyarthritis, skin lesions, and fever; she suspected was a collagen disease. Currently, she is well and she is followed up by primary health care in her province(AU)

Leprosy bacilloscopy notifications in the Brazilian Unified Health System and COVID-19 pandemic: an ecological investigation / Notificações de baciloscopia para hanseníase no Sistema Único de Saúde brasileiro e a pandemia de COVID-19: uma investigação ecológica

Objective: to evaluate leprosy bacilloscopy exam notifications in the Brazilian Unified Health System (SUS) from April 2018 to March 2022. Methods: an ecological study was carried out using open-access data from the SUS. Results: the temporal tendency of leprosy bacilloscopy was considered significantly decrease over time (p <0.05), as well as there was a significant decrease in the first and second pandemic years when compared to the control interval in all Brazilian regions (p <0.05). Conclusion: leprosy bacilloscopy exams remain negatively affected by the COVID-19 pandemic in the SUS.

Objetivo: avaliar o número de notificações de baciloscopia para hanseníase no Sistema Único de Saúde brasileiro (SUS) de abril de 2018 até março de 2022. Método: foi realizado um estudo ecológico com dados de acesso aberto do SUS. Resultados: a tendência temporal da baciloscopia da hanseníase foi considerada significativamente decrescente ao longo do tempo (p <0.05), bem como houve uma redução significativa no primeiro e segundo ano de pandemia quando comparado ao intervalo-controle em todas as regiões brasileiras (p <0.05). Conclusão: os exames de baciloscopia da hanseníase permanecem afetados negativamente pela pandemia de COVID-19 no SUS.

Genetic diversity of Mycobacterium leprae in the state of São Paulo, an area of low-leprosy incidence in Brazil

ABSTRACT Background: Brazil has the second largest number of leprosy cases worldwide, and the state of São Paulo has been considered non-endemic since 2006. Methods: We analyzed 16 variable number tandem repeats loci and three single nucleotide polymorphisms loci of Mycobacterium leprae (M. leprae) in 125 clinical isolates from patients in different municipalities in the state. Results: The clustering pattern of M. leprae indicated that the transmission of leprosy persisted in the state and included scenarios of intra-extra-familial transmission in areas with low endemicity. Conclusions: A significantly active circulation of M. leprae was observed. Therefore, surveillance and control measures must be implemented.

Seroepidemiologic survey of the household contacts of leprosy patients

SUMMARY OBJECTIVE: Leprosy is a disabling infectious disease caused by Mycobacterium leprae. This study aimed to investigate the prevalence of leprosy among household contacts of leprosy patients. METHODS: This study is a serological survey in household contacts of leprosy patients who had been treated or were undergoing treatment in the city of Presidente Prudente, São Paulo, Brazil, from 2006-2016, using clinical examination and screening for anti- Phenolic glycolipid-I antibodies with Mycobacterium leprae-flow serology. RESULTS: A total of 263 index cases of leprosy were identified during the study period. Of these, 53 were approached, and among their household contacts, 108 were examined. The ML-flow test was positive in 2 (1.85%) individuals, but clinical examination revealed no signs or symptoms of leprosy in them. Therefore, they were considered to have a subclinical infection. Leprosy was not confirmed in any household contacts. In this study, a lower percentage of household contacts, when compared to that in the literature, had a positive Mycobacterium leprae-flow test result. CONCLUSION: The use of Mycobacterium leprae-flow should be encouraged during the follow-up of at-risk populations, such as the household contacts of leprosy patients.

Lucio’s phenomenon: A systematic literature review of definition, clinical features, histopathogenesis and management

Leprosy is a chronic disease with clinical presentations according to the immunologic spectrum. Lepromatous form is the most advanced, with the highest transmissibility and risk of causing disabilities. Lucio’s phenomenon is a rare manifestation among lepromatous patients with a rapid and severe evolution and high mortality. It is difficult to differentiate from ulcerative/necrotic erythema nodosum leprosum and has no consensus on how it should be treated. This article is a qualitative review of the literature after the introduction of multidrug therapy, aiming to bring consensus related to the clinical, laboratory and histopathological diagnostic criteria of the disease and its management

Social school contacts of multibacillary leprosy cases in children living in the hyperendemic region of the Midwest of Brazil

Abstract Objective: To analyze the prevalence of Mycobacterium leprae detection and the associated factors among social contacts in the school environment of multibacillary cases living in a hyperendemic municipality of the state of Mato Grosso. Methods: Cross-sectional study with 236 social contacts of multibacillary leprosy from public schools and residents in Cuiabá (Mato Grosso) in 2018. The sources of information were interviews and nasal swab tests for molecular analysis by polymerase chain reaction - PCR. For the prevalence ratio estimates, crude and adjusted analyses were performed using robust Poisson regression and their respective confidence intervals (95% CI). The ArcGIS 9.1 software was used for the geographic distribution analyses. Results: The prevalence of detection of M. leprae in social contacts was 14%. A total of 63.6% of the schools surveyed had 5.1% to 50% of the social contacts of leprosy with positive PCR. The analysis of the geographic distribution in the neighborhoods showed a high prevalence of infection, being higher than 50% in some localities. The highest proportion of positive results occurred in the northern region of the city and from a precarious socioeconomic class. Conclusion: The results showed a high prevalence of detection of M. leprae among social contacts in areas with poor socioeconomic conditions. In these regions, there is a greater risk of

Necrotic erythema nodosum reaction associated with histological alterations of Lucio's phenomenon

Abstract Patients with lepromatous or borderline leprosy may present two types of vasculonecrotic reactions: Lucio's phenomenon (LP) and necrotic erythema nodosum leprosum (nENL). These are serious conditions, which mostly lead to life-threatening infectious and thrombotic complications. The authors report the case of a patient with leprosy recurrence associated with an atypical type II reaction with LP characteristics on histopathology.

Spatial distribution pattern of new leprosy cases under 15 years of age and their contacts in Sobral, Ceará, Brazil / Distribuição espacial de novos casos de hanseníase em menores de 15 anos e de seus contatos em Sobral, Ceará, Brasil

Abstract This study's objective was to analyze the spatial distribution pattern of new leprosy cases under 15 years and their contacts. A cross-sectional descriptive study covering sociodemographic characteristics and spatial analysis was carried out. The participants were from the city of Sobral, Ceará and the study was conducted between August 2014 and September 2015. Contacts were identified by the persons responsible for the children. Seropositivity was determined with the NDO-LID antigen, and positive cases were plotted on Voronoi polygons. Nine new cases of leprosy under 15 years of age have been found. The average number of people living with the cases was higher than the number of people living with non-household contacts. All household contacts were aware of other leprosy cases and had a higher rate of seropositive tests than non-household contacts. The index cases lived in the poorest regions of the municipality and hyper-endemic areas. Spatial analysis revealed a cluster of subclinical infection within a radius of 102 meters, suggesting that non-household transmission is related to proximity with seropositive individuals. In conclusion, the search for new leprosy cases cannot be restricted to household contacts.

Resumo O objetivo deste estudo foi analisar o padrão de distribuição espacial de novos casos de hanseníase em menores de 15 anos e seus contatos. Estudo transversal, descritivo, abrangendo características sociodemográficas e análise espacial. Os participantes eram de Sobral, Ceará e o estudo foi realizado entre agosto de 2014 e setembro de 2015. Os contatos foram identificados pelos responsáveis pelas crianças. A soropositividade foi determinada com o antígeno NDO-LID e os casos positivos foram plotados em polígonos de Voronoi. Nove novos casos de hanseníase em menores de 15 anos foram encontrados. O número médio de pessoas que conviviam com os casos foi superior ao número de pessoas que conviviam com contatos não domiciliares. Todos os contatos domiciliares sabiam de outros casos de hanseníase e apresentaram maior taxa de testes soropositivos do que os contatos não domiciliares. Os casos índice residiam nas regiões mais pobres do município e em áreas hiperendêmicas. A análise espacial revelou um agrupamento de infecção subclínica em um raio de 102 metros, sugerindo que a transmissão não domiciliar está relacionada à proximidade com indivíduos soropositivos. Concluindo, a busca por novos casos de hanseníase não pode se restringir aos contatos domiciliares.

Prevalência de pacientes notificados com hanseníase no município de São Luís, Maranhão, durante 2010-2020 / Prevalencia de pacientes notificados con lepra en el municipio de São Luís, Maranhão, durante 2010-2020 / Prevalence of leprosy patients notified in the municipality of São Luís, Maranhão, from 2010 to 2020

Objetivo: identificar a prevalência de pacientes notificados com hanseníase em São Luís, Maranhão, durante 2010-2020. Método: estudo descritivo, exploratório, retrospectivo, transversal, quantitativo, realizado no Banco de Dados público do DATASUS cuja coleta ocorreu em agosto de 2021. A amostra foi composta por 9.387 pacientes notificados com Hanseníase. Resultados: observa-se prevalência amostral em maio de 2012, sexo masculino, faixa etária entre 30-39 anos, Ensino Médio completo, pardos, casos multibacilares, avaliação de incapacidade física e de cura no estágio Grau 0, apresentaram mais que cinco lesões, baciloscopia negativa, episódios sem reação,sendo abordados como casos novos cuja forma prevalente foi a dimorfa, tendo como esquema terapêutico mais prescrito a poliquimioterapia durante 12 meses e prevalência de cura. Conclusão: houve uma prevalência dos casos de hanseníase em homens jovens com bom grau de instrução escolar. Apesar da alta prevalência de casos novos, o tratamento foi efetivo de modo a levá-los à cura.(AU)

Objective: to identify the prevalence of patients notified with leprosy in São Luís, Maranhão, during 2010-2020. Method: descriptive, exploratory, retrospective, cross-sectional, quantitative study, conducted in the public database of the DATASUS whose collection occurred in August 2021. The sample was composed of 9,387 patients notified with Leprosy. Results: sample prevalence was observed in May 2012, male gender, age range 30-39 years, complete High School, brown, multibacillary cases, evaluation of physical disability and cure in Grade 0 stage, presented more than five lesions, negative bacilloscopy, episodes without reaction, being addressed as new cases whose prevalent form was the dimorphic, having as the most prescribed therapeutic scheme the polychemotherapy for 12 months and prevalence of cure. Conclusion: there was a prevalence of leprosy cases in young men with good schooling. Despite the high prevalence of new cases, the treatment was effective in order to lead them to cure(AU)

Objetivo: identificar la prevalencia de pacientes con lepra notificados en São Luís, Maranhão, durante 2010-2020. Método: estudio descriptivo, exploratorio, retrospectivo, transversal, cuantitativo, realizado en la base de datos pública DATASUS, la cual fue recolectada en agosto de 2021. La muestra estuvo conformada por 9.387 pacientes reportados con lepra. Resultados: se tiene una muestra de prevalencia en mayo de 2012, sexo masculino, grupo etario entre 30-39 años, bachillerato completo, pardos, casos multibacilares, valoración de incapacidad física y curación en la etapa Grado 0, presentaba más de cinco lesiones, baciloscopía negativa , episodios sin reacción, siendo abordados como casos nuevos cuya forma prevalente fue borderline, siendo el régimen terapéutico más prescrito la polimedicación durante 12 meses y prevalencia de cura.Conclusión: había una prevalencia de casos de lepra en hombres jóvenes con buena escolaridad. A pesar de la alta prevalencia de casos nuevos, el trataminto fue eficaz de manera que los curará(AU)

Comportamiento epidemiológico de la lepra en varios países de América Latina, 2011-2020 / Epidemiological behavior of leprosy in several Latin American countries, 2011-2020 / Comportamento epidemiológico da hanseníase em vários países da América Latina, 2011-2020

RESUMEN Objetivo. Describir el comportamiento epidemiológico de la lepra en varios países latinoamericanos durante 2011-2020, tomando como base los indicadores de la Organización Mundial de la Salud (OMS). Método. Estudio transversal, descriptivo y cuantitativo con datos oficiales sobre incidencia y prevalencia en la población en general, niños, forma clínica y casos de discapacidad de grado 2 registrados por la OMS entre 2011 y 2020. Se seleccionaron los ocho países latinoamericanos con más casos y se realizaron análisis de estadística descriptiva simple y comparativa entre las variables. Resultados. Entre 2011-2020 se reportaron 301 312 casos de lepra en los países seleccionados: Argentina, Brasil, Colombia, Cuba, México, Paraguay, República Dominicana y Venezuela. Brasil fue el único con una prevalencia mayor a 1 por 10 000 habitantes y representó 93,77% de casos. En Brasil y República Dominicana se observó un aumento de la prevalencia durante 2011-2019, mientras que en los demás países esta tendió a disminuir. La enfermedad fue más frecuente en hombres, y los casos multibacilares superaron significativamente a los paucibacilares. En Brasil se encontraron las mayores incidencias de casos de lepra infantil y discapacidad de grado 2 durante el período evaluado. Conclusión. A pesar de que en América Latina la lepra solo es considerada un problema de salud pública en Brasil, la mayoría de los países de la región continúa reportando casos cada año, lo que revela una falta de atención médica adecuada. El estudio confirmó la importancia de la vigilancia activa, el diagnóstico temprano y la planificación de acciones contra la enfermedad en todos los países evaluados, con el propósito de disminuir o detener su transmisión.

ABSTRACT Objective. To describe the epidemiological behavior of leprosy in several Latin American countries during 2011-2020, based on World Health Organization (WHO) indicators. Methods. Cross-sectional, descriptive and quantitative study with official data on incidence and prevalence in the general population, children, clinical form and cases with grade 2 disability from WHO records between 2011 and 2020. The eight countries in Latin America that reported most cases were selected and analyses were carried out using simple descriptive and comparative statistics between different variables. Results. During the study period, 301 312 cases of leprosy were reported in the selected countries: Argentina, Brazil, Colombia, Cuba, Dominican Republic, Mexico, Paraguay, and Venezuela. Brazil is the only country in the region with a prevalence greater than 1 per 10 000, representing 93.77% of all cases. Brazil and the Dominican Republic showed an increase in prevalence during 2011-2019, while in other countries the trend was decreasing. The disease is more frequent in men, and multibacillary cases significantly exceed paucibacillary ones. Brazil showed the highest incidences of cases of childhood leprosy and grade 2 disability during the evaluated period. Conclusion. In Latin America, leprosy is only considered a public health problem in Brazil; however, most countries in the region continue to report cases annually, revealing a lack of adequate medical care. This study confirmed the importance of active surveillance, early diagnosis and planning of actions against the disease in all the countries evaluated with the aim of reducing its transmission.

RESUMO Objetivo. Descrever o comportamento epidemiológico da hanseníase em vários países de América Latina durante 2011-2020, tomando como base os indicadores da Organização Mundial da Saúde (OMS). Método. Estudo transversal, descritivo e quantitativo com dados oficiais de incidência e prevalência na população geral, em crianças, forma clínica e casos com incapacidade de grau 2 nos registros da OMS entre 2011 e 2020. Se selecionaram os oito países da América Latina que relataram a maioria dos casos e as análises foram avaliadas por meio de estatísticas descritivas e comparativas simples entre as variáveis. Resultados. No período, foram notificados 301 312 casos de hanseníase nos países selecionados: Argentina, Brasil, Colômbia, Cuba, México, Paraguai, República Dominicana e Venezuela. O Brasil é o único país da região com prevalência maior que 1 por 10 000 habitantes, representando 93,77% do total de casos. O Brasil e a República Dominicana mostraram um aumento na variação da prevalência durante 2011-2019, enquanto nos demais a tendência foi decrescente. A doença é mais frequente em homens e os casos multibacilares superam significativamente os paucibacilares. O Brasil apresentou as maiores incidências de hanseníase infantil e incapacidade de grau 2 durante o período avaliado. Conclusão. Na América Latina, a hanseníase só é considerada um problema de saúde pública no Brasil; no entanto, a maioria dos países da região continua notificando casos anualmente, revelando falta de assistência médica adequada. O presente estudo confirmou a importância da vigilância ativa, do diagnóstico precoce e do planejamento de ações contra a doença em todos os países avaliados, com o objetivo de reduzir e interromper a sua transmissão.

Caracterización de factores clínicos-epidemiológicos en la incidencia de lepra

Introducción: La meta mundial para la eliminación de la lepra, es su detección temprana, lo que requiere un abordaje integral, saber los diversos factores que pueden favorecer su adquisición, para así desarrollar estrategias que contribuyan a su erradicación. Objetivo: Caracterizar los factores clínico-epidemiológicos en la incidencia de lepra del municipio Camagüey. Métodos: Se realizó un estudio observacional, descriptivo, transversal, retrospectivo cuyo universo de trabajo estuvo constituido por todos los pacientes con diagnóstico de lepra en el municipio Camagüey, durante el período de estudio. Las variables estudiadas fueron: formas clínicas según clasificación de Madrid, edad, sexo, primeros síntomas y signos, localización de las lesiones, baciloscopia, modo de detección, fuente de infección y situación del enfermo en relación al foco. La información obtenida fue procesada mediante el paquete estadístico SPSS v21. Los métodos empleados fueron estadística descriptiva de distribución de frecuencias absolutas y relativas. Los resultados del estudio se expusieron en tablas y gráficos. Resultados: La lepra dimorfa fue la de mayor incidencia, prevaleció el grupo de edad entre los 60 y más años con predominio del sexo masculino, más de la mitad de los enfermos presentaron manchas anestésicas como primer síntoma y baciloscopia codificación cero. El modo de detección más relevante fue espontáneo, la fuente de infección la ignorada y en la situación del enfermo en relación al foco prevaleció el caso índice. Conclusiones: Los resultados del estudio evidencian que se hace necesario incrementar la capacitación del personal de la salud y profundizar en las labores de búsqueda de casos.

Introduction: The global goal for the elimination of leprosy is its early detection, which requires a comprehensive approach, knowing the various factors that can favor its acquisition, to develop strategies that contribute to its eradication. Objective: To characterize the clinical-epidemiological factors in the incidence of leprosy in the Camagüey municipality. Methods: A retrospective cross-sectional descriptive observational study was carried out, whose work universe consisted of all the patients with a diagnosis of leprosy in the Camagüey municipality, during the studied period. The variables studied were: clinical forms according to Madrid classification, age, sex, first symptoms and signs, location of the lesions, bacilloscopy, mode of detection, source of infection, and situation of the patient about the focus. The information obtained was processed using the statistical package SPSS v21. The methods used were descriptive statistics of the distribution of absolute and relative frequencies. The results of the study were presented in tables and graphs. Results: Dimorphic leprosy was the one with the highest incidence, the age group between 60 and older prevailed with a predominance of males, more than half of the patients presented anesthetic spots as the first symptom, and smear coding was zero. The most relevant detection mode was spontaneous, the source of infection was ignored, and the index case prevailed in the patient's situation in relation to the outbreak. Conclusions: The results of this study show that it is necessary to increase the training of health personnel and deepen the search for cases.

Factores antropológicos socio-demográficos en la incidencia de lepra

Introducción: La conexión entre la lepra y los factores sociales, tienen implicación tanto para el paciente, como para la operatividad de los programas de control de esta enfermedad. Objetivo: Caracterizar factores antropológicos socio-demográficos en la incidencia de lepra en el municipio Camagüey. Métodos: Se realizó un estudio observacional, descriptivo, transversal retrospectivo. El universo lo conformaron los pacientes con diagnósticos de lepra incluidos en el periodo que abarcó el estudio y pertenecientes al municipio Camagüey. Las variables estudiadas fueron: formas clínicas según clasificación sanitaria, edad, sexo, área de salud, procedencia geográfica (rural o urbana), ingreso económico familiar e índice de hacinamiento. La información obtenida fue procesada mediante el paquete estadístico SPSS v21. Los métodos empleados fueron estadística descriptiva de distribución de frecuencias absolutas y relativas. Los resultados del estudio se expusieron en tablas y gráficos. Resultados: La lepra multibacilar fue la de mayor incidencia, predominó el grupo de edad entre los 20 y 59 años, el sexo masculino fue el más afectado, el mayor por ciento de casos se observó en las áreas de salud Norte y Previsora, más de las cuatro quintas parte de los pacientes pertenecían a la zona urbana, la mayoría de ellos tenían un ingreso económico familiar malo y predominó el índice sin hacinamiento. Conclusiones: Se hace necesario profundizar en el estudio de los factores antropológicos sociales que pudieran favorecer la adquisición de esta enfermedad.

Introduction: The connection between leprosy and social factors has implications both for the patient and for the operation of the control programs for this disease. Objective: To characterize socio-demographic anthropological factors in the incidence of leprosy in the Camagüey municipality. Methods: A retrospective cross-sectional descriptive observational study was conducted. The universe was made up of patients diagnosed with leprosy included in the period covered by the study and belonging to the municipality of Camagüey. The variables studied were: clinical forms according to health classification, age, sex, health area, geographical origin (rural or urban), family economic income and overcrowding index. The information obtained was processed using the statistical package SPSS v21. The methods used were descriptive statistics of absolute and relative frequency distribution. The results of the study were presented in tables and graphs. Results: Multibacillary leprosy was the one with the highest incidence, the age group between 20 and 59 years old prevailed, with a predominance of males, the highest percentage of cases was observed in the North and Previsory health areas, more than four fifths parts of the patients belonged to urban areas, most of them had a poor family income and the index without overcrowding prevailed. Conclusions: It is necessary to deepen the study of the social anthropological factors that could favor the acquisition of this disease.

Leprosy: clinical and immunopathological characteristics

Abstract Leprosy, a disease caused by Mycobacterium leprae, has polymorphic neurocutaneous manifestations strongly correlated with the host immune response. Peripheral neural damage can lead to sensory and motor losses, as well as deformities of the hands and feet. Both innate and acquired immune responses are involved, but the disease has been classically described along a Th1/Th2 spectrum, where the Th1 pole corresponds to the more limited presentations and the Th2 to the multibacillary ones. The aim of this review is to discuss this dichotomy in light of the current knowledge of the cytokines, T helper subpopulations, and regulatory T cells involved in each presentation of leprosy. The text will also address leprosy reactions related to increased inflammatory activity in both limited and multibacillary presentations, leading to exacerbation of chronic signs and symptoms and/or the development of new ones. Despite the efforts of many research groups around the world, there is no standardized serological test/biological marker for diagnosis so far, even in endemic areas, which could contribute to the eradication of leprosy.

Association of CD209 (DC-SIGN) rs735240 SNV with paucibacillary leprosy in the Brazilian population and its functional effects

BACKGROUND Leprosy, caused by Mycobacterium leprae, is a public health problem in Brazil that affects peripheral nerves, resulting in physical disabilities. During host-pathogen interactions, the immune response determines leprosy outcomes from a localised (paucibacillary) form to a disseminated (multibacillary) form. The recognition of M. leprae involves the DC-SIGN receptor, which is present on the dendritic cells (DCs) and participates in immune activation. OBJECTIVES To evaluate the association of polymorphisms in the promoter region of the gene encoding DC-SIGN (CD209) and the clinical form of leprosy, and to investigate its functional effects. METHODS The study population included 406 leprosy patients from an endemic area in Brazil [310 multibacillary (MB); 96 paucibacillary (PB)]. A functional evaluation based on the effects of the single nucleotide variant (SNV) associated with PB leprosy on the specific immune response was also performed. RESULTS The GA genotype and the presence of the A allele of rs735240 (-939G>A) were associated with PB leprosy [OR: 2.09 (1.18-3.69) and 1.84 (1.07-3.14), respectively]. Carriers of the A allele showed reduced expression of CD209 and TGF-β1 in leprosy lesions in comparison with individuals with GG genotype, in addition to a higher response to the Mitsuda test. CONCLUSION These data suggest that rs735240 influences the immune response against M. leprae and clinical presentation of leprosy.

Design of a specific peptide against phenolic glycolipid-1 from Mycobacterium leprae and its implications in leprosy bacilli entry

BACKGROUND Mycobacterium leprae, the causative agent of Hansen's disease, causes neural damage through the specific interaction between the external phenolic glycolipid-1 (PGL-1) and laminin subunit alpha-2 (LAMA2) from Schwann cells. OBJECTIVE To design a LAMA2-based peptide that targets PGL-1 from M. leprae. METHODS We retrieved the protein sequence of human LAMA2 and designed a specific peptide using the Antimicrobial Peptide Database and physicochemical parameters for antimycobacterial peptide-lipid interactions. We used the AlphaFold2 server to predict its three-dimensional structure, AUTODOCK-VINA for docking, and GROMACS programs for molecular dynamics simulations. FINDINGS We analysed 52 candidate peptides from LAMA2, and subsequent screening resulted in a single 60-mer peptide. The mapped peptide comprises four β-sheets and a random coiled region. This peptide exhibits a 45% hydrophobic ratio, in which one-third covers the same surface. Molecular dynamics simulations show that our predicted peptide is stable in aqueous solution and remains stable upon interaction with PGL-1 binding. In addition, we found that PGL-1 has a preference for one of the two faces of the predicted peptide, which could act as the preferential binding site of PGL-1. MAIN CONCLUSIONS Our LAMA2-based peptide targeting PGL-1 might have the potential to specifically block this key molecule, suggesting that the preferential region of the peptide is involved in the initial contact during the attachment of leprosy bacilli to Schwann cells.

Determinación de la persistencia y diagnóstico tardío de lepra en el Valle del Cauca de 2010 a 2016 / Determination of persistence and delayed diagnosis of leprosy in Valle del Cauca from 2010 to 2016 / Determinação da persistência e diagnóstico tardio de lepra no Valle del Cauca de 2010 a 2016

Resumen Objetivo: Describir la frecuencia, las características clínico-demográficas y los factores relacionados con el retraso diagnóstico, con tratamientos incompletos y con el desarrollo de discapacidad entre el ingreso y el egreso de pacientes inscritos en el "Programa de Control de la Enfermedad de Hansen del Valle del Cauca", de 2010 a 2016. Metodología: Se realizó un estudio observacional descriptivo de una cohorte retrospectiva de pacientes con lepra. Resultados: La incidencia promedio fue de 0,99 casos / 100 000 habitantes. La mediana de edad fue 54 años (rango intercuartílico: 39-65); el 58,82 % fueron hombres, el 49,73 % pertenecía al régimen subsidiado. El 83,68 % fueron casos nuevos, de los cuales, el 76,47 % eran multibacilares (47,9 % con lepra lepromatosa). El 59,54 % manifestó discapacidad y el 10,54 % tuvo leprorreacciones. El 50% presentó retraso diagnóstico, y el 9,09 %, abandonó tratamiento. Se encontró dependencia significativa entre retraso diagnóstico y discapacidad al ingreso (or: 2,09, ic 95 %: 1,28-3,41, p= 0,003), y entre la no finalización del tratamiento y ser previamente tratado (or: 2,82, ic 95 %: 1,28-6,18, p= 0,009). Conclusión: La lepra continúa siendo frecuente en el Valle del Cauca. El retraso diagnóstico y el ingreso con alguna discapacidad connotan captación tardía de los pacientes y en estadios avanzados. El abandono y la discapacidad al egreso se suman a la complejidad de la situación. Se evidencia la necesidad de fortalecer las intervenciones actuales dirigidas hacia el paciente, sus contactos domiciliarios, el personal de salud y la comunidad en general.

Abstract Objective: To describe the frequency, clinical-demographic characteristics and factors related to delayed diagnosis, incomplete treatments, and development of disability from admission to discharge of patients enrolled in the "Hansen's Disease Control Program of Valle del Cauca", from 2010 to 2016. Methodology: A descriptive observational study of a retrospective cohort of patients with leprosy was conducted. Results: The average incidence was 0.99 cases / 100 000 inhabitants. The median age was 54 years (interquartile range: 39-65); 58.82% were men, 49.73 % belonged to the subsidized regime. 83.68% were new cases, of which 76.47% were multibacillary (47.9% with lepromatous leprosy). 59.54% were disabled, and 10.54% experienced leprotic reactions. 50% had a delayed diagnosis, and 9.09 % abandoned treatment. Significant dependence was found between delayed diagnosis and disability at admission (OR: 2.09, CI 95 %: 1.28-3.41, p = 0.003), and between non-completion of treatment and prior treatment (OR: 2.82, CI 95 %: 1.28-6.18, p = 0.009). Conclusion: Leprosy continues to be frequent in Valle del Cauca. Delayed diagnosis and disability at admission imply late identification of patients in advanced stages. Abandonment and disability are additional factors in this complex situation. It is evident the need to strengthen current interventions aimed at the patient, their home contacts, healthcare workers, and the community.

Resumo Objetivo: Descrever a frequência, as características clínico-demográficas e os fatores relacionados com o atraso do diagnóstico, com tratamentos incompletos e com o desenvolvimento de incapacidade entre a ingresso e o egresso de pacientes inscritos no "Programa de Controle da Enfermidade de Hansen do Valle del Cauca", de 2010 a 2016. Metodologia: Foi realizado um estudo observacional descritivo de uma coorte retrospectiva de pacientes com lepra. Resultados: A incidência média foi de 0,99 casos/100000 habitantes. A média de idade foi de 54 anos (intervalo interquartil: 39-65); 58,82% foram homens, 49,73% pertenciam ao regime subsidiado. Um total de 83,68% foram de novos casos, dos quais, 76,47% eram multibacilares (47,9% com lepra lepromatosa). Um 59,54% manifestaram incapacidade e 10,54% tiveram lepro-reações. Um 50% apresentaram atraso no diagnóstico e 9,09% abandonaram o tratamento. Encontrou-se significativa dependência entre atraso no diagnóstico e incapacidade no ingresso (OR: 2,09, IC95%: 1,28-3,41, p= 0,003), e entre a não-finalização do tratamento e ser previamente tratado (OR: 2,82, IC95%: 1,28-6,18, p= 0,009). Conclusão: A lepra continua sendo frequente no Valle del Cauca. O atraso no diagnóstico e o ingresso com alguma incapacidade indicam captação tardia dos pacientes e em estágios avançados. O abandono e a incapacidade ao ingresso são somados à complexidade da situação. É evidente a necessidade de fortalecer as intervenções atuais dirigidas ao paciente, seus contatos domiciliares o pessoal de saúde e a comunidade em geral.