Riesgo y distribución geográfica de neurocisticercosis en Chile según egresos hospitalarios (2002-2019) / Epidemiology of cysticercosis in Chile

BACKGROUND: Neurocysticercosis is the most prevalent parasitic disease of the central nervous system in Chile, where sporadic cases are reported, without information about the epidemiology or distribution of the disease. AIM: To identify the main risk zones for cysticercosis in Chile. MATERIAL AND METHODS: Analysis of hospital discharge databases between 2002 and 2019, available at the website of the Chilean Ministry of Health. Cases with B69 code of the tenth international classification of diseases were identified. RESULTS: In the study period, there were 1752 discharges with the diagnoses of neurocysticercosis, ocular cysticercosis and cysticercosis of other sites. The ages of patients ranged from 0 to 89 years with a clustering between 30 and 59 years. Sixty two percent were males. The zone between the regions of Maule and Araucania concentrated 82% of cases. CONCLUSIONS: We identified the zone with the greatest concentration of cysticercosis in Chile, where preventive strategies should eventually be directed.

Características clínicas de la neurocisticercosis en un hospital referencial del norte del Perú. 2016-2018 / Clinical characteristics of neurocysticercosis from a reference hospital of the northern of Peru. 2016-2018

INTRODUCCIÓN: La neurocisticercosis (NCC) es la parasitosis más común del sistema nervioso central, siendo una causa muy importante de epilepsia. OBJETIVO: Describir las características de pacientes con NCC atendidos en un hospital de alta complejidad de Lambayeque durante el período 2016-2018. PACIENTES Y MÉTODOS: Se revisaron las historias clínicas de pacientes con diagnóstico de NCC y se recolectó su información en una ficha de datos. RESULTADOS: 46 historias cumplieron criterios de inclusión; 23 correspondían a varones, la mediana de edad fue 46,5 años (RIC: 26,5-63), el paciente más joven tuvo 7 años, el más longevo 85 años; 30 procedían de la región Lambayeque. Epilepsia se presentó en 24 pacientes, hipertensión endocraneal en 10, síndrome psíquico en dos, déficit neurológico focal en 1, síndrome visual en 1, un paciente fue asintomático. Siete pacientes tuvieron epilepsia y otro síndrome simultáneamente. En las neuroimágenes, las calcificaciones cerebrales fueron las lesiones más comunes; 9 tuvieron quistes sub-aracnoideos. En 20 pacientes se efectuó serología por western blot, siendo positiva en 11; 38 fueron clasificados como NCC definitiva y 8 probable. Recibieron solamente tratamiento sintomático18 pacientes, 27 tratamiento antiparasitario y 6 adicionalmente tratamiento neuroquirúrgico. Falleció un paciente. CONCLUSIONES: La sintomatología y los hallazgos de neuroimágenes fueron proteiformes y la mortalidad fue baja.

BACKGROUND: Neurocysticercosis (NCC) is the most common parasitosis of the central nervous system, and a very important cause of epilepsy. AIM: To describe the clinical features of patients with NCC attending a high level hospital from Lambayeque during: 2016-2018. METHODS: The medical records of patients with NCC were reviewed, and their information was collected on a data sheet. RESULTS: 46 stories met the inclusion criteria; 23 patients were male, the median age was 46.5 years (IQR: 26.5-63), the youngest patient was 7 years old, and the longest 85. Thirty patients were from Lambayeque. Epilepsy occurred in 24 patients, intracranial hypertension in 10, psychic syndrome in 2 and focal neurological deficit and visual syndrome in 1; there was one asymptomatic patient and seven had epilepsy and another syndrome. In neuroimaging, cerebral calcifications were the most common lesions; 9 patients had subarachnoid cysts. Serology (western blot) was performed in 20 patients being positive in 11; 38 were definitive NCC and 8 probable. Eighteen patients received only symptomatic treatment, 27 antiparasitic treatment and 6, additionally neurosurgical treatment. Only one patient died. CONCLUSIONS: The symptoms and neuroimaging findings were proteiform and the mortality found was low.

First report of an outbreak of cerebral coenurosis in Dhofari goats in Oman / Primeiro relato de um surto de coenurose cerebral em cabras Dhofari em Omã

Abstract This study documented the first outbreak of cerebral coenurosis in goats in Salalah, southern Oman. Deaths of 130 (16.6%) adult native goats in a herd (n=780) were reported from January to June 2017. Affected goats showed various nervous signs ended by death. Investigations for thiamine deficiency, polioencephalomalacia, caprine arthritis encephalitis, and listeriosis were negative. Upon necropsy, multiple (1-4) thin-walled cysts 2-3.5 cm in diameter containing clear fluid with numerous clusters of protoscolices in the cerebrum and cerebellum had replaced the brain parenchyma, causing space-occupying lesions. Parasitologically, the recovered cysts were Coenurus cerebralis, based on the arrangement of protoscolices, and the number and size of their hooks. Morphologically, each protoscolex had four suckers and a rostellum with double-crown hooks. The large and small hooks were 157.7±0.5 µm and 115±0.6 µm in length, respectively. Histopathologically, the parasite destroyed the affected tissues associated with multifocal to diffuse lymphocytic, non-suppurative meningoencephalitis; ischemic neuronal necrosis; and malacia. This is the first report of cerebral coenurosis in livestock in Oman, which should alert the local public health authorities for the application of prevention and control measures.

Resumo Este estudo documentou o primeiro surto de coenurose cerebral em cabras em Salalah, Oman. A morte de 130 (16,6%) caprinos adultos nativos (n=780) foi relatada de janeiro a junho de 2017. As cabras afetadas mostraram distúrbios neurológicos, que culminaram em óbito. Investigações para deficiência de tiamina, polioencefalomalácia, encefalite por artrite caprina e listeriose foram negativas. Na necropsia, múltiplos (1-4) cistos de paredes finas com 2-3,5 cm de diâmetro contendo líquido claro com numerosos aglomerados de protoescólices no cérebro e no cerebelo haviam substituído o parênquima cerebral, causando compressão nas estruturas adjacentes. Os cistos recuperados foram identificados como sendo de Coenurus cerebralis, com base no arranjo dos protoescólices, e no número e tamanho de seus ganchos. Morfologicamente, cada protoescólice tinha quatro ventosas e um rostelo com dupla coroa de ganchos. Os ganchos grandes e pequenos tinham 157,7±0,5 µm e 115±0,6 µm de comprimento, respectivamente. Histopatologicamente, o parasita causou a destruição dos tecidos afetados associada à meningoencefalite linfocítica não-supurativa, que variou de multifocal a difusa, necrose neuronal isquêmica e malacia. Este é o primeiro relato de coenurose em ruminantes no Oman, o que deve servir de alerta para as autoridades locais da área de saúde para a aplicação de medidas de prevenção e controle.

Assessment of impediments affecting health systems response to neurocysticercosis in two districts (Gulu and Amuru) of Northern Uganda: A cross sectional study

Northern Uganda is recovering from the effects of prolonged war which devastated most of the health systems in the region. The aim of the study was to identify health sector impediments affecting health systems response to Neurocysticercosis in the districts of Gulu and Amuru. A cross sectional study was conducted on two hospitals and 10 health centers. Two hundred and three (n=203) respondents were involved. Questionnaires were used to collect the data. One hundred and forty two (70.0%) of the respondents are permanently employed (P=0.01). Seventy three point nine percent (73.9%) of respondents are residents from Gulu districts (P=0.024). One hundred and nine (53.4%) of respondents reported they received training on infectious diseases (P=0.507). One hundred and forty three (70%) reported their health facilities have polices (P=0.04). One hundred and forty seven (72.4%) reported in-charges reside at health facilities (P=0.01). One hundred and twenty four (61%) of the respondents reported Government is the primary source of funding (P=0.02). One hundred and seventeen (57.6%) of the respondents reported funding are irregular (P=0.23). Eighty seven percent (87%) reported inadequate physical infrastructure (P=0.04). Seventy three point six have limited knowledge on the diagnosis of Neurocysticercosis (P=0.01) and many prescribe anti-helminthic drugs to patients (P=0.27). Despite improvement in the healthcare services in the health sectors, health systems response to Neurocysticercosis in Gulu and Amuru, Northern Uganda is weak with most health facilities operating minimally. There is need for holistic approach to improvement of health systems in the region through increased Government funding and advocacy

Evolución clínica de niño angolano con neurocisticercosis tratado en Cuba / Clinical evolution of an Angolan child with neurocysticercosis treated in Cuba

Introducción: se presenta por primera vez en el hospital un caso de neurocisticercosis. En el pasado era una enfermedad que solo ocurría en países en vías de desarrollo, ahora está apareciendo con mayor frecuencia en países desarrollados como Estados Unidos, Canadá y el Reino Unido. Es una enfermedad seria, en algunos casos puede ser mortal, aunque generalmente se puede prevenir y controlar. Se identifica un caso complejo no habitual en Cuba. Presentación del caso: paciente angolano, de 9 años de edad, con antecedentes de salud, que hace 2 meses en su país presentó un cuadro de fiebre, vómitos, convulsiones, hiperestesia y somnolencia. Posteriormente comenzó con trastorno de la conciencia dado por cuadro confusional, crisis epiléptica tónico clónicas generalizadas, y es enviado a Cuba a descartar tumor o absceso cerebral. Conclusiones: en el paciente evaluado hubo manifestaciones clínicas que podían responder a varias enfermedades neurológicas, pero los antecedentes epidemiológicos, los hallazgos en la resonancia magnética y la respuesta inmediata ante los antiparasitarios, resultaron definitivos para el diagnóstico de neurocisticercosis(AU)

Introduction: a case of neurocysticercosis is presented for the first time in the hospital. In the past it was a disease that only occurred in developing countries, now it is appearing more frequently in developed countries such as the United States, Canada and the United Kingdom. It is a serious disease, in some cases it can be fatal, although it can usually be prevented and controlled. A complex case, not usual in Cuba is identified. Case presentation: Angolan patient, 9 years old, with health history, whom 2 months ago in his country presented symptoms of fever, vomiting, seizures, hyperesthesia and drowsiness. Later, he presented a disorder of consciousness due to confusional symptoms, generalized tonic-clonic epileptic crisis, and he was sent to Cuba to rule out a tumor or brain abscess. Conclusions: in the evaluated patient there were clinical manifestations that could respond to several neurological diseases, but the epidemiological antecedents, the findings in the magnetic resonance and the immediate response to the antiparasitic drugs were crucial for the diagnosis of neurocysticercosis(AU)

Prevalencia de enfermedades infecciosas crónicas en autopsias clínicas / Prevalence of chronic infectious diseases in clinical autopsies

Las enfermedades infecciosas crónicas constituyen un problema de salud pública mundial al ser importante causa de mortalidad. En Guatemala no existen estudios postmortem recientes que aborden dicho tema, por lo que se desconoce su prevalencia en autopsias clínicas del país. El presente estudio se delimita las siguientes enfermedades: tuberculosis, candidiasis, neurocisticercosis, aspergilosis, coccidioidomicosis e histoplasmosis. Objetivo: determinar la prevalencia de las enfermedades infecciosas crónicas en autopsias clínicas. Material y Métodos: investigación descriptiva retrospectiva, basada en los datos de 909 boletas de protocolos completos de autopsias clínicas realizadas del año 2006 al 2015 en el Departamento de patología en el Hospital General San Juan de Dios de Guatemala

Surgical treatment of neurocysticercosis. Retrospective cohort study and an illustrative case report / Tratamento cirúrgico da neurocisticercose. Estudo de coorte retrospectivo e um caso ilustrativo

ABSTRACT CONTEXT AND OBJECTIVE: Neurocysticercosis is prevalent in developing countries and manifests with several neurological signs and symptoms that may be fatal. The cysts may be parenchymal or extraparenchymal and therefore several signs and symptoms may occur. Depending on their location, neurosurgical procedures may be required, sometimes as emergencies. The aim here was to review 10-year statistics on all surgical neurocysticercosis cases at a large public tertiary-level hospital. DESIGN AND SETTING: Retrospective cohort at a large public tertiary-level hospital. METHODS: All surgical neurocysticercosis cases seen between July 2006 and July 2016 were reviewed. Parenchymal and extraparenchymal forms were considered, along with every type of surgical procedure (shunt, endoscopic third ventriculostomy and craniotomy). The literature was reviewed through PubMed, using the terms “neurocysticercosis”, “surgery”, “shunt” and “hydrocephalus”. RESULTS: 37 patients underwent neurosurgical procedures during the study period. Most were male (62.16%) and extraparenchymal cases predominated (81%). Patients aged 41 to 50 years were most affected (35.13%) and those 20 years or under were unaffected. Ventricular forms were most frequently associated with hydrocephalus and required permanent shunts in most cases (56.57%). CONCLUSIONS: The treatment of neurocysticercosis depends on the impairment: the parenchymal type usually does not require surgery, which is more common in the extraparenchymal form. Hydrocephalus is a frequent complication because the cysts often obstruct the cerebrospinal flow. The cysts should be removed whenever possible, to avoid the need for permanent shunts.

RESUMO CONTEXTO E OBJETIVO: A neurocisticercose é prevalente em países em desenvolvimento e manifesta-se com vários sinais e sintomas neurológicos que podem ser fatais. Os cistos podem ser parenquimatosos ou extraparenquimatosos, portanto vários sinais e sintomas podem estar presentes. Dependendo da sua localização, procedimentos neurocirúrgicos podem ser necessários, às vezes em caráter emergencial. O objetivo foi revisar dados estatísticos de um período de 10 anos de todos os casos cirúrgicos de neurocisticercose num grande hospital público terciário. TIPO DE ESTUDO E LOCAL: Coorte retrospectiva de um grande hospital público terciário. MÉTODOS: Todos os casos cirúrgicos de neurocisticercose de pacientes tratados entre julho 2006 e julho 2016 foram revisados. As formas parenquimatosas e extraparenquimatosas foram consideradas, assim como tipo de procedimento cirúrgico (derivação, terceiroventriculostomia endoscópica e craniotomia). A literatura foi revisada por meio da PubMed, utilizando-se os termos “neurocysticercosis”, “surgery”, “shunt” e “hydrocephalus”. RESULTADOS: 37 pacientes foram submetidos a procedimentos neurocirúrgicos nesse período, a maioria do sexo masculino (62.16%%) e casos extraparenquimatosos predominaram (81%). Pacientes com idade 41-50 anos foram os mais afetados (35,13%) e aqueles com 20 anos ou menos não foram afetados. As formas ventriculares mais frequentemente estiveram associadas a hidrocefalia e necessitaram da realização de shunts definitivos na maior parte dos casos (56,57%). CONCLUSÕES: O tratamento depende da forma de acometimento: o tipo parenquimatoso usualmente não necessita de cirurgia que é mais comum na forma extraparenquimatosa. Hidrocefalia é uma complicação frequente pois muitas vezes os cistos obstruem o fluxo liquórico. A remoção dos cistos deve ser realizada sempre que possível para evitar a necessidade de derivações definitivas.

Neuropsychiatric manifestations and epidemiology of neurocysticercosis / Manifestações neuropsiquiátricas e epidemiologia de neurocisticercose

Neurocysticercosis (NCC) is the brain infection caused by larval stages of the helminth Taenia solium. The embryos of Taenia travel through the bloodstream and can reach the brain, muscles, eyes, and various organs. In the brain, the psychiatric manifestations are mood disorders, depression and anxiety, which are commonly associated with epilepsy and sensory-motor deficits. Neurocysticercosis is a frequent parasitic disease in the world population; it is endemic in Central and South America, Asia and Sub-Saharan Africa. In the present review, we report the major symptoms and signals of neurocysticercosis common to neurological and psychiatric illnesses. We briefly present Epidemiology of those manifestations and analyze the relationship between pathological changes and NCC symptomatology. OBJECTIVES AND METHODOLOGY: A literature review was conducted to characterize epidemiological, neurological and psychiatric manifestations of NCC. The final 90 papers were selected of a set of 937 publications from 2010 to 2016. RESULTS: NCC is a major cause of epilepsy in endemic areas; further- more, leads to a diversity of motor and sensitive deficits, manifestations vary from headache to severe intracranial hypertension. Potentially fatal conditions include arteritis, encephalitis and hydrocephalus. Depression and cognitive decline remain among the most important psychiatric manifestations. Neuropsychiatric manifestations, Epidemiology, and neuroimaging provide diagnostic criteria. Brain scans may reveal one or diverse cysts filled with fluid within a scolex (parasite's head). CONCLUSION: NCC's diversity of presentations encourage health professionals to consider it in diagnoses, especially in endemic countries, and also in non-endemic areas because migrants and travelers are subject to contagious. Treatment consists in use of antiparasitic drugs (albendazol, praziquantel) and drugs to treat associated conditions (anticonvulsants, corticosteroids). Surgery is reserved to extirpate the parasite from particular locations (eyes, spinal cord, cerebral ventricles) or to differentiate NCC from tumors, tuberculosis, mycosis, etc. Prevention includes treatment of intestinal helminthiasis, sanitation in animal farming, food preparing hygiene, quality control of water and food.

Neurocisticercose é a infecção cerebral causada pelos estágios lar- vais do helminto Taenia solium. Os embriões da Taenia deslocam-se através da corrente sanguínea e podem atingir o cérebro, músculos, olhos e vários órgãos. No cérebro, as manifestações psiquiátricas são transtornos de humor, depressão e ansiedade, as quais estão comumente associados com epilepsia e deficiências sensório-motoras. Neurocisticercose é uma parasitose frequente na população mundial, é endêmica na América Central e do Sul, Ásia e África subsaariana. Na presente revisão, relatamos os principais sintomas e sinais de neurocisticercose pertinentes a doenças neurológicas e psiquiátricas. Nós brevemente apresentamos a Epidemiologia dessas manifestações, e analisamos a relação entre alterações patológicas e sintomatologia da NCC. OBJETIVOS E METODOLOGIA: Uma revisão da literatura foi conduzida para caracterizar a epidemiologia, as manifestações neurológicas e psiquiátricas de NCC. Os 90 artigos finais foram selecionados de um conjunto de 937 publicações entre 2010 a 2016. RESULTADOS: NCC é uma importante etiologia de epilepsia em áreas endêmicas, além disso causa uma diversidade de deficiências motoras e sensoriais, as manifestações variam de cefaleia a severa hipertensão intracraniana. Condições potencialmente fatais incluem arterites, encefalites e hidrocefalia. Depressão e declíneo cognitive permanecem entre as mais importantes manifestações psiquiátricas. Manifestações neuropsiquiátricas, epidemiologia e neuroimagem provêm os critérios de diagnóstico. As imagens cerebrais podem revelar um ou diversos cistos preenchidos com líquido e o escólex (cabeça) do parasito. CONCLUSÕES: A diversidade de apresentações da NCC encoraja os profissionais de saúde a considerá-la dentre os diagnósticos, especialmente em países endêmicos; e também em áreas não-endêmicas, pois migrantes e viajantes estão sujeitos ao contágio. O tratamento consiste no uso de antiparasíticos (albendazol, praziquantel) e medicamentos para tratar condições associadas (anticonvulsivantes, corticosteróides). Cirurgia é reservada para remoção do parasito de locais particulares (olhos, medula espinhal, ventrículos cerebrais) ou para diferenciar NCC de tumores, tuberculose, micose, etc. Prevenção inclui o tratamento de helmintíases intestinais, sanidade animal, higiene ao preparar alimentos, controle da qualidade da água e alimentos.

Neurocysticercosis in asplenic patient, case report / Neurocisticercose em paciente asplênico, relato do caso

Neurocysticercosis is an important cause of neurologic and psychiatric disorders; it is a frequent etiology for acquired epilepsy worldwide. The parasitic infection of Taenia solium (including larval dissemination to the nervous system) can be avoided by effective means of prevention. Nonetheless, this disease remains endemic in many regions of the world. To demonstrate the importance of prophylaxis this paper reports the case of a patient without spleen, who was treated for neurocysticercosis manifested by epilepsy. In twenty years of follow up, the patient did not experience a repeat occurrence of neurocysticercosis, despite of immunological impairment (absence of spleen) and environmental exposure (living in an endemic area). Prevention was guided by a regular use of anthelmintic (Albendazole) and health education.

Neurocisticercose é uma importante causa de doenças neurológicas e psiquiátricas, é uma frequente etiologia de epilepsia adquirida, no mundo. A infecção parasitária da Taenia solium (incluindo a disseminação das larvas para o sistema nervoso) pode ser evitada por meios eficazes de prevenção; no entanto, esta enfermidade ainda é endêmica em muitas regiões do mundo. Para demonstrar a importância da profilaxia relata-se o caso de um paciente sem baço, o qual foi tratado para a neurocisticercose manifestada por epilepsia. Em vinte anos de seguimento, o paciente não repetiu a ocorrência de neurocisticercose, apesar de dano imunológico (ausência de baço) e exposição ambiental (habitação em área endêmica). A prevenção foi guiada pelo uso regular de anti-helmíntico (Albendazole) e medidas educativas em saúde.

Pacientes con neurocisticercosis que no responden al tratamiento antiparasitario con albendazol en el Hospital Nacional L.N.S. - PNP durante Junio 2009 a Junio del 2011 / Patients with neurocysticercosis who do not respond to antiparasitic treatment with albendazole at the National Hospital LNS - PNP during June 2009 to June 2011

OBJETIVO: Determinar las características clínico-epidemiológicas de los pacientes con Neurocisticercosis que no responden al tratamiento antiparasitario con Albendazol en el Hospital Nacional Luis N. Sáenz-PNP durante Junio del 2009 a Junio del 2011. METODOLOGIA: Se realizó un estudio observacional, analítico-comparativo, retrospectivo, transversal. El tamaño de la población en estudio fue de 78 pacientes divididos en dos grupos: 33 pacientes con Neurocisticercosis que no responden al tratamiento antiparasitario con Albendazol y 45 pacientes con Neurocisticercosis que si responden al tratamiento antiparasitario con Albendazol. Las fuentes de información son las historias clínicas de aquellos pacientes con esta patología, que acudieron al Hospital Luis N. Sáenz durante Junio 2009 y Junio 2011. RESULTADOS: La edad promedio de los pacientes fue 37.7 años, con rangos de 18 a 34 años (41 por ciento), siendo la mayoría de sexo Masculino (65.4 por ciento). Las características sociodemográficas como la edad (p=0.973) y el sexo (p=0.243) no resultaron significativas con la respuesta o no al tratamiento antiparasitario con Albendazol. El 42.4 por ciento de los pacientes con NCC que no respondieron al tratamiento tuvieron un tiempo de enfermedad de 1 mes muy similar al 42.2 por ciento de los pacientes que si respondieron al tratamiento (p=0.344). El diagnóstico de la NCC en el 33.3 por ciento de los pacientes que no respondieron al tratamiento fue mediante Clínica y Neuroimágenes, a diferencia de los pacientes que si respondieron al tratamiento quienes tuvieron un diagnóstico mediante Clínica, Neuroimagen y Serología (26.7 por ciento) (p=0.129). Se observó que existe relación entre la localización de la NCC y la respuesta o no al tratamiento antiparasitario con Albendazol (p=0.002). La mayoría de los pacientes sin respuesta y con respuesta al tratamiento presentaron la forma quística (36.4 por ciento y 42.2 por ciento respectivamente) (p=0.832). Los principales signos y...

OBJECTIVE: To determine the clinical and epidemiological characteristics of the patients with neurocysticercosis that no responds to antiparasitic treatment with AIbendazol at National Hospital Luis N. Saenz-PNP during June 2009 to June 2011. METHODOLOGY: We conducted an observational study comparative-analytical, cross-sectional retrospective. The size of the study population was 78 patients divided into two groups: 33 patients with neurocysticercosis who do not respond to antiparasitic treatment with Albendazol and 45 patients with neurocysticercosis that whether they respond to antiparasitic treatment with AIbendazol. The sources of information are the clinical records of those patients with this pathology who attended the Hospital Luis N. Saenz during June 2009 and June 2011. RESULTS: The average age of the patients was 37.7 years oId, ranging from 18-34 years (41 per cent), the majority of male sex (65.4 per cent). The sociodemographic characteristics such as age (p=0.973) and sex (p=0.243) were not statistically significant with the answer or not to the antiparasitic treatment with Albendazol. The 42.4 per cent of patients with NCC who did not respond treatment had a disease duration of one month very similar to the 42.2 per cent of patients who did respond to treatment (p=0.344). The diagnosis of NCC in 33.3 per cent of patients who did not respond to the treatment was by Clinical and Neuroimaging, unlike patients who responded to treatment whether they had a diagnosis by clinical, neuroimaging and serology (26.7 per cent) (p=0.129). It was observed that there is relationship between the location of the NCC and the response or not to the Albendazol antiparasitic treatment (p=0.002). The majority of the patients with and without response to the treatment presented the form cystic (36.4 per cent and 42.2 per cent respectively) (p=0.832). The main signs and symptoms of patients with and without antiparasitic treatment response were: Nausea and vomiting...

Human Neurocysticercosis Case and an Endemic Focus of Taenia solium in Lao PDR

A male patient with neurocysticercosis was identified in Montai Village, Xay District, Oudomxay Province, Lao PDR in February 2004. He had a history of diagnosis for neurocysticercosis by a CT scan in Thailand after an onset of epileptic seizure in 1993. A pig in the same district was found to contain Taenia solium metacestodes (=cysticerci); the slaughtered pig body contained more than 2,000 cysticerci. In addition to morphological identification, molecular identification was also performed on the cysticerci by DNA sequencing analysis of the mitochondrial cox1 gene; they were confirmed as T. solium metacestodes. The patient is regarded as an indigenous case of neurocysticercosis infected in an endemic focus of T. solium taeniasis/cysticercosis in Oudomxay Province, Lao PDR.

Neurocysticercosis is still prevalent in Mexico / La neurocisticercosis es aún prevalente en México

In this work, we report the published cases of human and porcine cysticercosis, as well as Taenia solium taeniasis diagnosed in Mexico during the last 10 years. Numerical data allow us to state that this disease remains as a public health problem in our country. Whereas efficient tools have been developed for the diagnosis and prevention of cysticercosis, we strongly recommend further measures allowing the control and eventual eradication of this parasite in Mexico.

En este trabajo reportamos los casos publicados de cisticercosis humana y porcina, así como de teniosis por Taenia solium diagnosticados en México en los últimos 10 años. Los datos numéricos nos permiten sostener que esta parasitosis continúa siendo un problema de salud pública en nuestro país. Considerando que se han desarrollado herramientas eficientes para el diagnóstico y la prevención de la cisticercosis, recomendamos enfáticamente seguir promoviendo las medidas que permitan el control y posterior erradicación de esta parasitosis en México.

Características clínicas y epidemiológicas de los pacientes con neurocisticercosis en un hospital general de Lima / Clinical and epidemiological features of patients with neurocysticercosis in a general hospital in Lima

Objetivo: Determinar las características clínicas y epidemiológicas de los pacientes con neurocisticercosis en un hospital general de Lima. Material y métodos: Estudio observacional, descriptivo y retrospectivo en 225 pacientes con neurocisticercosis del Hospital María Auxiliadora entre los años 2002 y 2010. Se recogió información epidemiológica y clínica de las historias clínicas. Resultados: Se confirmaron 150/225 casos. El grupo etario más afectados fue de 20 a 64 años (49,3%) y menores de 14 años (27,4%). El 52% fueron mujeres. El 90% de los pacientes procedían de Lima. El 40% fueron estudiantes, 26% amas de casa, 8,7% obreros, 10% trabajadores rurales y 5,3% desempeñaban labores domésticas. Los síntomas más frecuentes fueron cefalea intensa sin respuesta al tratamiento (76%), convulsiones (74,7%) y pérdida de conciencia (43,3%). El 68,7% de pacientes fueron hospitalizados. Todos los pacientes recibieron tratamiento médico y el 19,3% terapia quirúrgica. Conclusiones: La neurocisticercosis se observó principalmente en la población económicamente activa, comprendida entre 20 y 64 años.

Objective: To describe the clinical and epidemiological features of patients with neurocysticercosis in a general hospital in Lima. Methods: Observational and descriptive study in 225 patients with neurocysticercosis at Hospital Maria Auxiliadora from 2002 to 2010. Information was gathered from the clinical charts. Results: 150 out of 225 cases were confirmed. The two most affected age groups were patients from 20-64 years of age (49.3%) and patients below 14 years (27.4%); 52% were females; 90% come from Lima; 40% were students; 26% were housewifes; 8.7% were labors; 10% were rural workers, and 5.3% were maidservants. The most frequent symptoms were headache unresponsive to treatment (76%), seizures (74.7%) and loss of conscious (43.3%); 68.7% of patients were admitted. All patients received medical treatment and 19.3% were treated surgically. Conclusions: Neurocysticercosis was mainly observed among the active economical population from 20 to 64 years of age.

Neurocisticercosis: una enfermedad desatendida en Chile / Neurocysticercosis: an neglected disease in Chile

Neurocysticercosis (NCC) is not a notifiable disease in Chile and has received little attention on the national medical literature. In order to evaluate the relevance and clinical features of the disease, we performed a retrospective analysis in a general hospital of five cases of NCC during a 11 years period. Age ranged from 3 to 63 years and all had history of living or visiting southern Chile. Three patients had a solitary parenchymal cyst in vesicular or granulomatous stages and presented with generalized seizures. Their outcome was favorable after anticonvulsant and albendazole therapy and cysts reduced in size and calcified during follow-up. The other 2 patients had extra-parenchymal or mixed forms, including a pregnant woman with intraventricular cysts who developed endocraneal hypertension and recurrent dysfunction of her ventriculoperitoneal shunt. This patient died after discharge despite an initial favorable evolution with steroids and high-dose albendazole. This case series showed that NCC is still an epidemiological and clinical problem in Chile, affects patients within a wide range of age including children, requires multidisciplinary therapeutic interventions, and has two clinical presentations with different prognosis including one malignant form. To control this infection, a surveillance or reporting system should be initiated.

La neurocisticercosis (NCC) no es una enfermedad de notificación obligatoria en Chile y ha recibido poca atención en la literatura médica local. Para evaluar su importancia y perfil clínico se hizo un análisis retrospectivo en un hospital general. Cinco casos de NCC fueron identificados en un período de 11 años. El rango de edad fue de 3 a 63 años y todos tenían antecedentes de visita o residencia en el sur del país. Tres pacientes tenían quistes únicos parenquimatosos en etapas granulomatosas o vesiculares y se presentaron con convulsiones generalizadas. Su evolución fue favorable con terapia anticonvulsivante y albendazol y los quistes se redujeron de tamaño y calcificaron durante el seguimiento. Los otros pacientes presentaron formas extra-parenquimatosas o mixtas e incluían a una mujer embarazada con quistes intraven-triculares quien desarrolló hipertensión endocraneana y disfunción recurrente de su válvula. Ella falleció después del alta a pesar de una evolución inicial favorable con corticoesteroides y albendazol. La NCC es un problema vigente en nuestro país pero de epidemiología desconocida, afecta a un amplio grupo etario, requiere múltiples intervenciones terapéuticas y presenta dos formas de diferente pronóstico, una de ellas maligna. Para controlarla es necesario incluirla en las enfermedades notificables.

Neurocisticercose em pacientes epilépticos acompanhados em um ambulatório especializado / Neurocysticercosis in epileptic patients followed at a specialized clinic

A neurocisticercose (NCC) é a causa identificável mais comum de epilepsia em países em desenvolvimento. O objetivo desse estudo é investigar o perfil dos pacientes com diagnóstico de NCC acompanhados em um ambulatório neurológico especializado em epilepsia. MÉTODOS: Trata-se de estudo transversal, descritivo de 502 pacientes com epilepsia. RESULTADOS: NCC foi encontrada em 14,9% dos pacientes, sendo que 73,3% destes apresentaram crises focais. A farmacorresistência foi observada em um maior percentual de pacientes com NCC (32,0%, 24/75) em comparação com os pacientes sem NCC. CONCLUSÃO: A freqüência de NCC mostrou-se elevada nesse contexto clínico, associando-se à refratariedade à medicação.

Neurocysticercosis (NCC) is the most common identifiable cause of epilepsy in developing countries. The aim of this study was to investigate the profile of patients diagnosed with NCC followed at a specialized neurological service in epilepsy. METHODS: This was a transversal descriptive study of 502 patients with epilepsy. RESULTS: NCC was found in 14.9% of patients, 73.3% of them had focal seizures. Drug resistance was observed in a higher percentage of patients with NCC (32.0%, 24/75) in comparison with patients without NCC. CONCLUSION: The frequency of NCC was elevated in the present clinical setting, being associated with refractoriness to anti-epileptic medication.

Perfil epidemiológico y clínico de pacientes con diagnóstico de neurocisticercosis en el Hospital Dr. Hernán Henríquez Aravena de Temuco entre los años 2000-2006: serie de casos / Epidemiological – clinical profile of patients with diagnosis of neurocysticercosis in Temuco’s Hospital between 2000-2006

Introducción: Neurocisticercosis es la infección parasitaria más frecuente del sistema nervioso central, causada por ingesta de alimentos contaminados con huevos del céstodo Taenia solium. La forma más común de presentación son crisis covulsivas. Objetivo: Realizar perfil epidemiológico y clínico de pacientes con diagnóstico de neurocisticercosis en el Hospital de Temuco, entre los años 2000-2006. Pacientes y Método: Revisión retrospectiva del 100 por ciento (n = 26) de historias clínicas de pacientes ingresados con diagnóstico de neurocisticercosis, según código de la Clasificación Internacional de Enfermedades (CIE – 10 B69.0), entre 1 de enero de 2000 y 31 de diciembre de 2006. Resultados: Media de edad al diagnóstico de 33,6 años; 65,3 por ciento de sexo masculino; 73,1 por ciento no registró apellidos de origen mapuche; 73,0 por ciento fueron procedentes de áreas urbanas. Crisis convulsivas fue el motivo de consulta más frecuente. Mediana de evolución de 30 días al momento de la consulta; 30,7 por ciento descritos como “larga data”, sin estimación exacta del tiempo evolución. El 100 por ciento fue estudiado con neuroimágenes. La mayoría presentó 2 o más lesiones y 80 por ciento de localización parenquimatosa; 30,7 por ciento requirió cirugía, indicada por hidrocefalia secundaria. No hubo pacientes fallecidos en esta serie. Conclusiones: Afecta a población activa, con predominio de sexo masculino, la mayoría sin apellidos mapuches y de procedencia urbana. Uno de cada tres pacientes consultó por crisis convulsivas. Todos nuestros pacientes fueron estudiados con neuroimágenes, que mostraron dos lesiones y de ubicación parenquimatosa en la mayoría de los casos. Un tercio requirió manejo quirúrgico, por hidrocefalia secundaria como complicación.

Introduction: Neurocysticercosis is the most common parasitic infection of the central nervous system caused from the ingestion of food that contains the Taenia solium eggs. Seizures are the most common clinical features. Aim: To establish an epidemiological-clinical profile of patients diagnosed with Neurocysticercosis in the Hospital of Temuco between the years 2000-2006. Methods and patients: Retrospective review of the 100 percent (n = 26) of clinical histories of patients diagnosed with Neurocysticercosis according to the International Classification of Diseases (CIE – 10 B69.0), between the 1st of January, 2000 and the 31th of December, 2006. Results: Average of age at diagnosis of 33,6 years old; 65,3 percent are male; 73,1 percent with no Mapudungun last names; 73,0 percent from urban areas. The principal reason of consult was seizures. Average 30-day evolution at the time of consultation; 30,7 percent were described as “long data”, without an exact estimation of the time of evolution. Within the 100 percent that was studied with neuroimaging, most of them presented two lesions and 80 percent was in the parenchyma; 30,7 percent needed surgery, in most of the cases because of hydrocephalus. Any of the patients died in this group. Conclusions: This pathology affects active population. Just a few were male, and most of them did not have Mapudungun last names or come from urban areas. One of three patients consulted because of seizures. All of the patients were studied with neuroimaging and in most cases they had two lesions and parenchymal localization. One of three patients required surgical management because of hydrocephalus.

Investigação em material de autópsias sobre a hipótese de associação entre obesidade e neurocisticercose / Investigation in autopsy material on the hypothesis of the association between obesity and neurocysticercosis

Introdução: A Neurocisticercose (NCC) é uma infecção no sistema nervoso central que pode ser associada à obesidade quando o cisticerco afeta os centros hipotalâmicos relacionados ao controle da fome e da saciedade. Objetivo: Comparar o Índice de Massa Corporal (IMC) dos pacientesautopsiados com NCC (exceto hipotalâmica) com um grupo sem cisticercose. Métodos: Foram revistos 2.629 protocolos de autópsias realizadas no período de 1970 a 2004, avaliando-se as seguintes variáveis: índice de massa corporal, diagnóstico e localização da NCC. Resultados: A ocorrência de NCC foi de 2,7por cento e a mediana do IMC do grupo com NCC (19,06 kg/m2) foi significativamente menor (p igual 0,001) que a do grupo sem cisticercose (20,76 kg/m2). Conclusão: A NCC, por si só, não está relacionada à obesidade, exceto quando o cisticerco apresenta localização hipotalâmica.

Introduction: Neurocysticercosis (NCC) is an infection of the Central NervousSystem that may be associated with obesity when the cysticercus affectshypothalamic centers associated to the appetite and satiety. Aim: to compare the Body Mass Index (BMI) of autopsied patients with NCC (except hypothalamic) with an autopsied group without cysticercosis. Methods: 2,629 protocols from autopsies from 1970 until 2004 were revised and the following variables evaluated: BMI, positive diagnosis, and localization of neurocysticercosis. NCC was found in71 autopsies (2.7%). The median BMI of the group with NCC, which was 19.06kg/m2, was significantly lower (p=0.001) in comparison with the group without cysticercosis with a BMI of 20.76 kg/m2. Conclusion: NCC itself is not related to obesity, except when the cysticercus has hypothalamic localization.

Aspectos epidemiológicos de pacientes com neurocisticercose atendidos em Hospital Geral Terciário de Brasília, Distrito Federal / Epidemiological aspects of patients with neurocysticercosis in a Terciary General Hospital in Brasília, Distrito Federal

Objetivo. Descrever aspectos epidemiológicos de pacientes diagnosticados com neurocisticercose, atendidos em hospital terciário do Distrito Federal. Método. Trata-se de estudo do tipo série de casos, que inclui pacientes com diagnóstico de neurocisticercose, atendidos em 2007 e 2008 no Hospital de Base do Distrito Federal. Resultados. Quase todos os pacientes (90%) procederam de outras unidades da federação, principalmente Minas Gerais e Goiás, e 86% da zona rural. A doença predominou no sexo feminino, e a idade mediana dos pacientes foi 37 anos, com variação de 13 a 74 anos. O hábito de ingerir carne de porco, bem como vegetais crus foi muito frequente. As condições de higiene e saneamento foram precárias. Conclusão. Por se tratar de doença potencialmente eliminável, necessitam ser implantadas medidas de prevenção e controle, tanto na área rural, como nos municípios do entorno do Distrito Federal.

Objective. In this study, epidemiological aspects of the patients diagnosed with neurocysticercosis and attended at a terciary care hospital in Brasília, DF, were analysed. Method. This is a prospective study with a case series of patients attended in the period of 2007 and 2008. The most part of patients (90%) came from other states, mainly Minas Gerais and Goiás and 86% from rural areas. Female patients were predominant and the median age was 37 years old, ranging from 13 to 74 years old. The habit of ingesting swine meat and raw vegetables was very frequent. Conclusion. As cysticercosis is an eliminable disease, preventive and control measures need to be implemented,so in rural areas of the Distrito Federal as in municipalities around Brasília.

Epidemiologic pattern of patients with neurocysticercosis diagnosed by computed tomography in Curitiba, Brazil / Perfil epidemiológico de pacientes com neurocisticercose diagnosticados por tomografia computadorizada em Curitiba, Brazil

The aim of this study was to drawn an epidemiological pattern of neurocystisticercosis (NCC) patients diagnosed by computed tomography at the major private diagnostic center in Curitiba, Brazil. A total of 1,009 medical files of consecutive patients presenting neurological indications were diagnosed by computed tomography from July 2007 to April 2008. Patient data included sex, age, municipality and tomography findings were analysed by Epi-info version 6.0.1. software. Most patients (81.10 percent) were living in Curitiba. A total of 91/1,009 cases (9.02 percent) were considered positive to NCC; 88 (96.7 percent) patients had inactive form of NCC and only 3 (3.2 percent) patients had cysts in granulomatous process. No patients had both forms. The prevalence of NCC cases in studied group was greater in patients between 51 to 60 years old, however, difference between sex was not significant. This epidemiological pattern of NCC was similar to the first NCC study in Curitiba, performed in 1995-1996 with 9.24 percent of positive cases.

Determinou-se o perfil epidemiológico da neurocisticercose (NCC) em pacientes diagnosticados por tomografia computadorizada (TC) no maior centro privado de diagnósticos de Curitiba, Brasil. Foram analisados 1009 registros médicos de pacientes consecutivos com indicações neurológicas submetidos a TC entre julho de 2007 a abril de 2008. Os dados dos pacientes que incluíram sexo, idade, município de residência e achados tomográficos foram analisados pelo software Epi-info versão 6.01. A maioria dos pacientes (80,10 por cento) era procedente de Curitiba; 91/1.009 casos (9,02 por cento) foram positivos para NCC; 88 (96,7 por cento) apresentaram a forma inativa e apenas em 3 (3,2 por cento) cistos em processo granulomatoso; não houve formas mistas. A prevalência de casos de NCC foi maior entre 51 e 60 anos. Não houve diferença significativa para o sexo entre os casos. O perfil dos pacientes diagnosticados para NCC por TC neste estudo é semelhante ao estudo anterior realizado em Curitiba entre 1995-1996, com 9,24 por cento de casos de NCC.

A serological study of cysticercosis in patients with HIV / Estudo sorológico da cisticercose em pacientes com HIV

Neurocysticercosis (NCC) has attained the importance of one of the most common cause of focal brain lesions in patients infected with HIV (human immunodeficiency virus). Adequate data regarding the rate of this co-infection is lacking. Therefore, the present study was carried out to determine the prevalence of cysticercosis among HIV patients residing in Puducherry or its neighboring districts of Tamil Nadu State, India. A total of one hundred blood samples were collected from HIV seropositive cases visiting JIPMER hospital, Puducherry, between June 2007 and May 2008. Enzyme immunotransfer blot (EITB) and enzyme linked immunosorbent assay (ELISA) were used to demonstrate anti- T. solium larval stage antibodies and Co-agglutination (Co-A) test was used to detect T. solium larval stage antigens in sera. Two HIV seropositive cases were found positive for anti-T. solium larval stage antibody by EITB and four were positive by ELISA. Only one sample was positive by both EITB and ELISA. No serum sample was found positive for T. solium larval stage antigen by Co-A test. The overall seropositivity detected by all the methods was 5 percent in this study group. The accurate clinical diagnosis of NCC in HIV is difficult due to deranged immunological parameters in the HIV infected patients. The results of this study provides important data on the prevalence of cysticercosis in HIV positive patients in Puducherry and neighboring areas which was previously unknown. This study will also increase awareness among physicians and public health agencies about T. solium cysticercosis in the selected group.

Neurocisticercose (NCC) tem alcançado a importância de uma das mais comuns causas de lesões focais no cérebro em pacientes infectados pelo HIV (vírus da imunodeficiência adquirida). Dados adequados relativos à frequencia desta co-infecção estão faltando. Portanto, o presente estudo foi realizado para determinar a prevalência da cisticercose entre pacientes com HIV residindo em Puducherry ou distritos vizinhos do Estado de Tamil Nadu, India. Um total de cem amostras foram coletadas de casos soropositivos do Hospital JIPMER, Puducherry, entre junho de 2007 e maio de 2008. "Enzyme immunotransfer blot" (EITB) e ELISA foram utilizados para demonstrar anticorpos contra a fase larval do T. solium. Testes de co-aglutinação (Co-a) foram usados para demonstrar antígenos da fase larval do T. solium no soro. Dois casos HIV soropositivos foram positivos para anticorpos contra a fase larval do T. solium por EITB e quatro foram positivos por ELISA. Somente uma amostra foi positiva por ambos EITB e ELISA. Nenhuma amostra de soro foi positiva para antígeno da fase larval do T. solium pelo teste Co-a. A soropositividade total detectada por todos os métodos foi 5 por cento neste grupo de estudo. O diagnóstico clínico exato de NCC em HIV é difícil devido aos desordenados parâmetros imunológicos nos pacientes infectados pelo HIV. Os resultados deste estudo fornecem dados importantes sobre a prevalência da cisticercose em pacientes HIV positivos em Puducherry e áreas vizinhas que eram previamente desconhecidos. Este estudo também aumentará a atenção dos médicos e agências de saúde pública sobre a cisticercose por T. solium em grupo selecionado.