New-onset Geriatric Epilepsy in a Latin American Country: A Multi-centric Study from Mexico

ABSTRACT Background: In Latin America, epilepsy in the elderly is a neglected issue that has never been studied. The epidemiological transition has significantly altered the demographics of epilepsy, and therefore, we would like to draw attention to this topic. Objective: We require local real-world evidence, as the literature often depicts a different scenario, including pharmacological management. Methods: From 2007 to 2018, we recruited all patients with new-onset geriatric epilepsy (first seizure after the age of 60) tracked from ten Mexican hospitals, adding them to patients with similar characteristics from a previously published study. The diagnosis was confirmed in all patients by a certified neurologist, and they were also studied using a conventional electroencephalogram and imaging workup. Results: A diagnosis of new-onset geriatric epilepsy (Elderly patients was established in 100 cases. No specific cause was found in 26% of patients, while 42% had a stroke and 10% had neurocysticercosis (NCC). Monotherapy was the choice in 83 patients, and phenytoin was the most used drug (50%), followed by carbamazepine (25%). Conclusion: NCC remains a frequent cause of new-onset geriatric epilepsy. This distribution is not seen in the literature, mainly representing patients from wealthy economies. In our setting, financial constraints influence the choice of the drug, and newer antiepileptic drugs should be made more affordable to this population with economic and physical frailty.

Neurocisticercosis y epilepsia en un hospital universitario de Popayán, Colombia: una serie de casos / Neurocysticercosis and epilepsy in a university hospital in Popayán, Colombia: A case series

RESUMEN INTRODUCCIÓN: La neurocisticercosis es una infección del sistema nervioso central causada por el estadio larvario del cestodo Taenia solium, y se estima que puede ocasionar hasta 30% de los casos de epilepsia en los países donde esta parasitosis es endémica. El objetivo de este estudio fue determinar la frecuencia de pacientes que presentaron epilepsia como secuela de neurocisticercosis en un hospital universitario en Popayán. MATERIALES Y MÉTODOS: Se realizó un estudio retrospectivo con todos los pacientes con diagnóstico de neurocisticercosis que ingresaron al Hospital Universitario San José entre enero 2014 y diciembre 2018 que cumplieron los criterios de inclusión. RESULTADOS: Se encontraron 50 pacientes, de estos, 40 (80%) reingresaron, encontrándose que 37 (74%) presentaron epilepsia como secuela. Las edades más afectadas fueron la de 41 a 60 años; 48 (96%) provenían del departamento del Cauca en especial de Mercaderes, y 33 (66%) de área rural. El síndrome convulsivo fue la manifestación clínica de ingreso más frecuente. La TAC fue la técnica de imagen de elección. CONCLUSIÓN: El departamento del Cauca se considera como una de las áreas endémicas para neurocisticercosis en Colombia, y la epilepsia secundaria es un secuela común.

ABSTRACT INTRODUCTION: Neurocysticercosis is an infection of the central nervous system caused by the larval stage of the cestode Taenia solium, it has been estimated to produce up to 30% of the cases in countries where this parasitosis is endemic. The objective of this study was to determine the frequency of patients who presented epilepsy as a sequel of neurocysticercosis in a university hospital in Popayán. MATERIALS AND METHODS: A retrospective study was conducted with all patients with a diagnosis of neurocysticercosis who were admitted to the Hospital Universitario San José between January 2014 and December 2018 who met the inclusion criteria. RESULTS: We found 50 patients, 40 (80%) of which were readmitted and 37 (74%) presented epilepsy as sequela. The most affected age-group was 41 to 60 years; 48 (96%) were from the department of Cauca, especially Mercaderes, and 33 (66%) from rural areas. Convulsive syndrome was the most frequent clinical manifestation on admission. CT was the imaging technique of choice. CONCLUSION: The department of Cauca is considered as an endemic area for neurocysticercosis, and secondary epilepsy was a common consequence.

A case with severe neurocysticercosis / 中国血吸虫病防治杂志

This case report described the diagnosis and treatment of an ethnic Tibetan case with severe neurocysticercosis residing in agricultural areas of Sichuan province.

Apuntes actualizados sobre la neurocisticercosis

Introducción: La neurocisticercosis es una infección parasitaria prevenible, producida por los quistes larvarios de la Taenia solium (solitaria), que pueden infectar cualquier parte del cuerpo, en este caso, el cerebro, siendo la forma más grave de la enfermedad y en ocasiones puede ocasionar convulsiones e incluso llegar a ser mortal. Objetivo: Sistematizar la información acerca de esta patología. Método: Se realizó una búsqueda bibliográfica actualizada en bases de datos como PubMed, Google Scholar, Medline, Web of Science, Cochrane Library y ClinicalKey, así como en revistas de alto impacto en SciELO, Scopus, complementada la información con revisiones sistemáticas, estudios clínicos aleatorizados y enfoques de metaanálisis, en los cuales se indagaron palabras claves para facilitar la búsqueda como: "Neurocisticercosis", "Fisiopatología", "etiología", "manifestaciones clínicas", "prevalencia", "morbimortalidad", "diagnostico", "tratamiento". Desarrollo: La investigación permitió reconocer el arduo trabajo que se precisa en el diagnóstico de esta enfermedad, debido a la dificultad que requiere su tipificación Se destacó la importancia de los estudios de neuroimagen como herramientas para calificar la gravedad de la neurocisticercosis y, de esta manera, escoger el tratamiento adecuado. Se desarrollaron acápites de: epidemiología, etiopatogenia, ciclo de vida, manifestaciones clínicas, clasificación, estadio evolutivo de las lesiones, diagnóstico, criterios diagnósticos, y tratamiento. Conclusiones: Ecuador es considerado como un país endémico para la Taenia solium. Implementar la prevención debe ser un pilar fundamental del ministerio de salud debido a la persistencia de los factores de riesgo para la infección de este parásito y el conjunto de aspectos asociados a la precaria calidad de vida en muchos sitios del país.

Introduction: Neurocysticercosis is a preventable parasitic infection caused by larval cysts of Taenia solium (tapeworm), which can infect any part of the body, including the brain and is the most severe form of the disease, sometimes lead to seizures and even be fatal. Objective: To synthesize information concerning this pathology. Method: An updated bibliographic search was carried out in databases such as PubMed, Google Scholar, Medline, Web of Science, Cochrane Library and ClinicalKey, as well as in high impact journals like SciELO, and Scopus. The information gathered was complemented with the use of systematic reviews, randomized clinical studies and meta-analysis approaches, in which to facilitate the search process various key words were used: "neurocysticercosis", "pathophysiology", "etiology", "clinical manifestations", "prevalence", "morbimortality", "diagnosis", and "treatment". Development: The research allowed the researchers to recognize the arduous work required for the diagnosis of this disease, assuming as well how difficult is to typify it. The importance of neuroimaging studies as tools to qualify the severity of neurocysticercosis and, thus, to choose the appropriate treatment was highlighted. The following sections were developed: epidemiology, etiopathogenesis, life cycle, clinical manifestations, classification, and evolution of lesions, diagnosis, diagnostic criteria, and treatment. Conclusions: Ecuador is considered an endemic country for Taeniasolium. The implementation of preventive actions should be regarded as a fundamental task of the Ministry of Health due to the permanent surrounding risk factors, which have an influence for getting infection and the set of aspects associated with the precarious quality of life in many parts of the country.

Introdução: A neurocisticercose é uma infecção parasitária evitável, produzida pelos cistos larvais da Taenia solium (tênia solium), que pode infectar qualquer parte do corpo, neste caso, o cérebro, sendo a forma mais grave da doença, podendo por vezes causar convulsões e podem até ser fatais. Objetivo: Sistematizar as informações sobre esta patologia. Método: Foi realizada busca bibliográfica atualizada em bases de dados como PubMed, Google Scholar, Medline, Web of Science, Cochrane Library e ClinicalKey, bem como em revistas de alto impacto no SciELO, Scopus, complementando as informações com revisões sistemáticas, análises clínicas estudos randomizados e abordagens de meta-análise, em que foram investigadas palavras-chave para facilitar a busca como: "Neurocisticercose", "Fisiopatologia", "etiologia", "manifestações clínicas", "prevalência", "morbidade e mortalidade", "diagnóstico" , "tratamento". Desenvolvimento: A pesquisa permitiu reconhecer o árduo trabalho que é exigido no diagnóstico desta doença, pela dificuldade que a sua tipificação exige, destacou-se a importância dos estudos de neuroimagem como ferramentas para qualificar a gravidade da neurocisticercose e, neste maneira, escolher o tratamento adequado. Foram desenvolvidas seções sobre: epidemiologia, etiopatogenia, ciclo de vida, manifestações clínicas, classificação, estágio evolutivo das lesões, diagnóstico, critérios diagnósticos e tratamento. Conclusões: O Equador é considerado um país endêmico para Taenia solium. A implementação da prevenção deve ser um pilar fundamental do Ministério da Saúde devido à persistência de fatores de risco para infecção por este parasita e ao conjunto de aspectos associados à precária qualidade de vida em muitas partes do país.

PREVALENCE OF NEUROCYSTICERCOSIS IN AND AROUND OF RURAL KANCHIPURAM.

Cysticercosis has been reported as the most common illness affecting the central nervous system by cystic stage of Taenia. solium pork tapeworm. It is also referred as food borne zoonotic infection with T.solium larva or cysticercus stage in humans. Cysticercosis which affects central nervous system is called neurocysticercosis (NCC). The clinical manifestation of NCC largely depends on the number, type, size of the cysts, stage of development of cyst and degree of host immune response against the parasite. The present study aimed to assess the burden of Objectives: neurocysticercosis infection by CT imaging and antigen detection by ELISA in the community as well as hospital based patients. Blood samples were collected and antigen detection of cysticercosis by ELISA were done and CT Brain was Methods: done to con?rm the diagnosis of neurocysticercosis among the participants. The overall clinical presentation among Results: 640 subjects showed seizure as the major presentation 446 (69.69%). The overall results of the commercial-Ag-ELISA revealed 61 of 446 sera to be positive for Cysticercus antigen, and thus con?rming 13.68% total prevalence of neurocysticercosis in the study region. High index of exposure to T. solium cysticercosis in the study region of south Indian. An early Conclusion: diagnosis and appropriate treatment management can improve the quality of life of a patient.

Infección experimental cerebral con cisticercosis en ovejas / Experimental brain infection with cysticercosis in sheep

RESUMEN Objetivo . Explorar la viabilidad de desarrollar un modelo de neurocisticercosis (NCC) de oveja mediante infección intracraneal de oncosferas de T. solium. Materiales y métodos. Se realizó un modelo de infección experimental de NCC en ovejas. Se inocularon aproximadamente 10 posoncósferas de T. solium cultivadas previamente por 30 días por vía intracraneal en diez ovejas. Las oncósferas, en 0,1 mL de solución salina fisiológica, se inyectaron en el lóbulo parietal a través de una aguja de calibre 18. Resultados. Después de tres meses, en dos ovejas se encontraron granulomas y en una tercera identificó un quiste de 5 mm de diámetro en el ventrículo lateral derecho y la evaluación histológica confirmó que el quiste corresponde a una larva de T. solium. También se utilizó inmunohistoquímica con anticuerpos monoclonales dirigidos contra componentes de membrana y antígenos excretorios/secretorios del quiste de T. solium para confirmar la etiología de los granulomas encontrados. Uno de ellos mostro reactividad ante los anticuerpos monoclonales utilizados, confirmando así que se trató de un cisticerco. Conclusión. Este experimento es la prueba de concepto de que es posible infectar ovejas con cisticercosis por inoculación intracraneal.

ABSTRACT Objective. To explore the feasibility of developing a sheep model of neurocysticercosis (NCC) by intracranial infection with T. solium oncospheres. Materials and methods. We carried out an experimental infection model of NCC in sheep. Approximately 10 T. solium oncospheres previously cultured for 30 days were inoculated intracranially into ten sheep. The oncospheres, in 0.1 mL of physiological saline, were injected into the parietal lobe through an 18-gauge needle. Results. After three months, granulomas were found in two sheep. In a third sheep we identified a 5 mm diameter cyst in the right lateral ventricle and histological evaluation confirmed that the cyst corresponded to a T. solium larva. Immunohistochemistry with monoclonal antibodies directed against membrane components and excretory/secretory antigens of the T. solium cyst was also used to confirm the etiology of the found granulomas. One of them showed reactivity to the monoclonal antibodies used, thus confirming that it was a cysticercus. Conclusion. This experiment is the proof of concept that it is possible to infect sheep with cysticercosis by intracranial inoculation.

Propuesta de una escala predictiva de deterioro cognitivo en pacientes adultos con neurocisticercosis / Proposal for a predictive scale of cognitive impairment in adult patients with neurocysticercosis

RESUMEN Fundamento La afectación cognitiva en pacientes con neurocisticercosis es frecuente, por lo tanto, resulta de gran utilidad contar con instrumentos pronósticos para establecer un mejor manejo de esta. Objetivo proponer una escala predictiva de deterioro cognitivo en pacientes adultos con neurocisticercosis. Métodos estudio con diseño correlacional, prospectivo y transversal, que incluyó 93 pacientes con neurocisticercosis. A través de datos aportados por investigaciones previas, se seleccionaron las variables, las cuales se relacionaron con la aparición de deterioro cognitivo en el análisis bivariado (p<0,05). Como técnica de análisis multivariado, se realizó un escalamiento multidimensional (PROXSCAL) (s-stress < 0,001 y coeficiente de congruencia de Tucker > 0,999). Se determinó el rendimiento pronóstico de cada uno de las variables, mediante la sensibilidad, especificidad y valores predictivos positivo y negativo, con sus respectivos intervalos de confianza al 95 %. Resultados se elaboró una escala con formato dicotómico, que incluyó 7 factores (4 clínicos y 3 tomográficos), con los que se obtuvo una puntuación de 0 a 7 puntos para la predicción de deterioro cognitivo en pacientes adultos con neurocisticercosis, con una probabilidad de: 0-1 punto: 75,3 %; 2-3 puntos: 95 %; ≥ 4 puntos: 96 %. Conclusión El instrumento propuesto presenta una precisión pronóstica aceptable; es sencillo, reproducible y necesita poco tiempo para su aplicación. A pesar de sus limitaciones, pudiera mejorar la calidad de la atención de los pacientes con neurocisticercosis, pues permite orientar el manejo de esta condición.

ABSTRACT Background Cognitive impairment in patients with neurocysticercosis is frequent, therefore, it is very useful to have prognostic instruments to establish a better management of it. Objective to propose a predictive scale of cognitive impairment in adult patients with neurocysticercosis. Methods study with a correlational, prospective and cross-sectional design, which included 93 patients with neurocysticercosis. Through data provided by previous research, the variables were selected, which were related to the appearance of cognitive impairment in the bivariate analysis (p<0.05). As a multivariate analysis technique, a multidimensional scaling (PROXSCAL) was performed (s-stress < 0.001 and Tucker's congruence coefficient > 0.999). The prognostic performance of each of the variables was determined by means of sensitivity, specificity, and positive and negative predictive values, with their respective 9 5% confidence intervals. Results a scale with a dichotomous format was developed, which included 7 factors (4 clinical and 3 tomographic), with which a score of 0 to 7 points was obtained for the prediction of cognitive impairment in adult patients with neurocysticercosis, with a probability of: 0-1 point: 75.3 %; 2-3 points: 95 %; ≥ 4 points: 96 %. Conclusion The proposed instrument has an acceptable prognostic accuracy; it is simple, reproducible and requires little time for its application. Despite its limitations, it could improve the quality of care for patients with neurocysticercosis, since it allows guiding the management of this condition.

Correlación entre estado cognitivo y hallazgos tomográficos en pacientes con neurocisticercosis. Ecuador, 2019 - 2020

RESUMEN Fundamento: Muchos pacientes con neurocisticercosis manifiestan deterioro cognitivo, con afectaciones importantes en su calidad de vida. Objetivo determinar la correlación entre el estado cognitivo y los hallazgos tomográficos en pacientes con neurocisticercosis. Métodos estudio correlacional, prospectivo y transversal, que incluyó a 93 pacientes con diagnóstico de neurocisticercosis atendidos en dos hospitales ecuatorianos, desde mayo de 2019 a mayo de 2020. Para la valoración cognitiva se utilizó el Mini-Mental State Examination, de Folstein. Se estimó el riesgo relativo y la prueba de Chi cuadrado, considerando significación estadística si p<0,05. Para el análisis multivariado se utilizó un modelo de regresión logística binaria. Resultados entre los hallazgos tomográficos, se destacaron las lesiones mayores de 1 cm (32,2 %), las múltiples (30,1 %), localizadas en la región parietal (34,4 %) y las subaracnoideas (46,2 %). La evaluación cognitiva mostró resultados normales en 74,2 % de los casos, así como demencia leve a moderada en 9,7 % de los pacientes. El área más afectada fue la del lenguaje (54,8 %). La demencia se asoció principalmente con el tamaño de la lesión mayor de un 1 centímetro [RR: 7,35; IC 95 %: 1,62-33,3], seguido del número de lesiones (múltiples o racemosa) y la topografía mixta. En el análisis multivariado estas perdieron la correlación. Conclusión El déficit cognitivo tuvo una prevalencia menor a la descrita en la literatura especializada, y se asoció con variables tomográficas como el tamaño, número y localización de las lesiones; en el análisis multivariado, ninguno de estos factores mantuvo su significación estadística.

ABSTRACT Background Many patients with neurocysticercosis manifest cognitive damage, with important effects on their quality of life. Objective to determine the correlation between cognitive status and tomographic findings in patients with neurocysticercosis. Method correlational, prospective and cross-sectional study, which included 93 patients diagnosed with neurocysticercosis treated in two Ecuadorian hospitals, from May 2019 to May 2020. The Folstein Mini-Mental State Examination was used for cognitive assessment. The relative risk and the Chi square test were estimated, considering statistical significance if p<0.05. For the multivariate analysis, a binary logistic regression model was used. Results among the tomographic findings, lesions greater than 1 cm (32.2%), multiple (30.1%), located in the parietal region (34.4%) and subarachnoid (46.2%) enhance. The cognitive evaluation showed normal results in 74.2% of the cases, as well as mild to moderate dementia in 9.7% of the patients. The most affected area was the language (54.8%). Dementia was mainly associated with lesion size greater than 1 centimeter [RR: 7.35; 95% CI: 1.62-33.3], followed by the number of lesions (multiple or racemose) and the mixed topography. In the multivariate analysis, these lost the correlation. Conclusion The cognitive deficit had a lower prevalence than that described in the specialized literature, and was associated with tomographic variables such as the size, number and location of the lesions; in multivariate analysis, none of these factors maintained their statistical significance.

Non invasive tests for diagnosis of parasitic infections of CNS

Central nervous system (CNS) infections are among the most devastating diseases with high mortality and morbidity. In the pre-human immunodeficiency virus (HIV) era, the occurrence of CNS infections was very infrequent. However, in the past four decades or so, with a global increase in the immunocompromised population, the incidence of opportunistic infections of the CNS has changed. This includes a global increase in the incidence of parasitic infections such as Toxoplasma gondii. Infections such as neurocysticercosis and cerebral malaria are quite prevalent in developing countries. Early diagnosis of these infections is crucial for instituting accurate therapy and preventing mortality and morbidity. Despite advances in neuroimaging techniques, laboratory diagnosis remains the mainstay for confirmation of diagnosis. We present an update on the noninvasive tests available for laboratory diagnosis of parasitic infections of the CNS.

A Rare Case of Peripheral Cysticercosis in a Young Female from South India

Human Cysticercosis, a potentially deadly infestation, is the consequence of ingestion of eggs of Taenia solium. Cysticercosis is the most common parasitic infestation of the Central Nervous System, Muscle and Subcutaneous Tissue. About 54% of the patients present with subcutaneous nodules combined with nervous involvement. Cysticercosis is the most common Parasitic Disease of the Central Nervous System in the world but Cysticercosis cutis has been reported much less frequently(less than 2%). Here we are discussing a case of peripheral cysticercosis for which Surgery was done followed by medical treatment. Our patient came with a swelling on the left forearm near cubital fossa duration progressively increasing in size for the past 4 months. Complaints of pain over the swelling. MRI of the swelling was taken which showed a cystic swelling in the subcutaneous plane with a scolex in situ. After ruling out Neurocysticercosis, patient was taken up for excision of the cyst. Histopathology reported positive for cysticercosis with in situ scolex.Postoperative period uneventful and the patient was given a course of albendazole for two weeks. Majority of the patients will be presenting with Neurological Symptoms as Neurocysticercosis. Albendazole is considered as the treatment of choice in most of the cases and is cost effective. An alternate choice is praziquantel which might be given for some patients. Surgical management is preferred for peripheral cyst which is one of the rarest presentation.

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.

Efficacy and safety of praziquantel in the treatment of neurocysticercosis in Vietnam

@#Neurocysticercosis (NCC) is a parasitic infection of the nervous system and is responsible for considerable morbidity and mortality. Praziquantel (PZQ) is one of the antiparasitics mostly used in managing NCC, however, there have been only a few studies on the treatment outcome of this drug. The present study aimed to evaluate the efficacy and safety of PZQ in patients with NCC. Sixty patients with typical characteristics of NCC received three 10-day cycles of PZQ and the interruption between these cycles was 10 days. Additional treatment included antiinflammation (steroids), antiepileptics and analgesics. Clinical and imaging studies were done at baseline and six months after therapy to assess the efficacy of treatment. Laboratory evaluation was done before and after each cycle to investigate laboratory safety profiles. By six months after finishing therapy, all patients had clinical improvement and 75% of them were free of symptoms. The rates of complete, partial or no resolution of cysts on brain magnetic resonance imaging were 61.7%, 28.3% and 10% respectively. The efficacy of therapy was not associated with the number of cysts. There was no difference between the levels of aspartate aminotransferase, alanine aminotransferase, urea and creatinine before and after treatment. Conclusion: Praziquantel is effective and safe in the treatment of patients with neurocysticercosis.

Uso de la imagen radiológica y serología por Western Blot para el diagnóstico de la neurocisticercosis en un hospital del norte del Perú / Use of radiological imaging and serology by Western Blot for the diagnosis of neurocysticercosis in a hospital in northern Peru

Introducción: La neurocisticercosis (NCC) es una zoonosis parasitaria del sistema nervioso central causada por el céstodo Taenia solium, y que afecta a países en desarrollo y con escaso saneamiento básico. Objetivo: Describir el uso y la concordancia de la imagen radiológica por tomografía (TAC) o resonancia magnética (RM) y serología por western Blot (WB) en el diagnóstico de la NCC en un hospital del norte del Perú. Material y Métodos: Estudio observacional retrospectivo. La historia clínica fue la unidad de análisis. Los casos se buscaron en la oficina de Epidemiología mediante el CIE-10- B69 y registro del Laboratorio de Parasitología, Metaxénicas y Zoonosis del mismo hospital, en el periodo del año 2015 al 2017. Resultados: Se estudiaron 67 historias clínicas, que cumplían con los criterios diagnósticos absolutos de NCC. Los pacientes fueron varones en el 55,2 % y tuvieron una media de edad de 40,2 (±17,8) años. El 35,9% tuvieron un resultado positivo por WB (19/39), las lesiones quísticas con escólex fueron observada en el 25,4% de las TAC y en el 29,6 de las RM. La concordancia observada entre la prueba serológica con TAC y RM fue escasa, siendo (Kappa=0,073, IC95%: 0,053 ­ 1,084) y (Kappa=0,112, IC95%: 0,092 ­ 1,092) y un porcentaje de acuerdo de 42,0% y 45,7% respectivamente. Conclusiones: Se observó uso diferenciado y escasa concordancia entre la prueba serológica por WB e imagen radiológica en pacientes con diagnóstico de neurocisticercosis en la población estudiada.

Background: Neurocysticercosis (NCC) is a parasitic zoonosis of the central nervous system caused by the tapeworm Taenia solium, which affects developing countries with poor basic sanitation. Objective: To describe the use and concordance of radiological tomography (CT) or magnetic resonance imaging (MRI) and western blot (WB) serology in the diagnosis of NCC in a hospital in northern Peru. Material and Methods: Retrospective observational study. The medical history was the unit of analysis. The cases were searched in the Epidemiology office using the ICD-10-B69 and registry of the Laboratory of Parasitology, Metaxenics and Zoonoses of the same hospital, in the period from 2015 to 2017. Results: 67 medicales records were studied, which complied with the absolute diagnostic criteria for NCC. The patients were men in 55.2% and had a mean age of 40.2 (± 17.8) years. 35.9% had a positive result by WB (19/39), cystic lesions with scolex were observed in 25.4% of the CTand in 29.6 of the MRI. The concordance observed between the serological test with CTand MRI was poor, with (Kappa = 0.073, 95% CI: 0.053 - 1.084) and (Kappa = 0.112, 95% CI: 0.092 - 1.092) and a percentage of agreement of 42.0% and 45.7% respectively. Conclusions: Differentiated use and poor concordance between the WB serological test and radiological imaging are performed in patients with a diagnosis of neurocysticercosis in the studied population.

Higher Concentration of Taenia Antigens in the CSF is Related to Slight Ventricle Enlargement and Periventricular Neuronal Decrease in Young Rats

Purpose Experimental models might help understand the pathophysiology of neurocysticercosis-associated hydrocephalus. The present study aimed to compare the extent of hydrocephalus and tissue damage in rats with subarachnoid inoculation of different concentrations of Taenia crassiceps cyst proteins. Methods Sixty young rats were divided into two groups: low- and high-concentration groups. The animals in the low concentration group received 0.02ml of 2.4mg/ml T. crassiceps cyst proteins while those in the high concentration group received 0.02 ml of 11.6mg/ml T. crassiceps cyst proteins. The animals underwent magnetic resonance imaging at 1, 3, and 6 months postinoculation to assess the ventricle volume. Morphological assessment was performed at the end of the observation period. Results Repeated measures of ventricle volumes at 1, 3, and 6 months showed progressive enlargement of the ventricles. At 1 and 3 months, we observed no differences in ventricle volumes between the 2 groups. However, at 6 months, the ventricles were larger in the high concentration group (median » 3.86mm3, range: 2.37­12.68) compared with the low concentration group (median » 2.00mm3, range: 0.37­11.57), p » 0.003. The morphological assessment revealed a few inflammatory features in both groups. However, the density of oligodendrocytes and neurons within the periventricular region was lower in the high concentration group (5.18 versus 9.72 for oligodendrocytes and 15.69 versus 21.00 for neurons; p < 0.001 for both). Conclusion Our results suggest that, in rats, a higher concentration of T. crassiceps cyst proteins in the subarachnoid space could induce ventricle enlargement and reduce the number of neurons within the periventricular area.

Neurocisticercosis masiva. Presentación de un caso y revisión de la literatura / Massive Neurocysticercosis. A Case Report and Literature Review

RESUMEN La neurocisticercosis es una infección del sistema nervioso central provocada por la ingestión accidental de huevos de Taenia Solium, constituyendo la parasitosis más frecuente del propio sistema. Es un problema común en muchos países latinoamericanos, asiáticos y africanos; en áreas endémicas, es considerada la principal etiología de las epilepsias de inicio tardío. Se presenta el caso de un paciente de 39 años de edad, de sexo masculino, con historia de alteraciones del comportamiento y varias crisis convulsivas desde hacía un año atrás. Por este motivo fue trasladado al Hospital Militar Principal de Luanda e ingresado en el Servicio de Psiquiatría con diagnóstico presuntivo de neurosis histérica. Al mes de su egreso fue remitido nuevamente esta vez en el Servicio de Neurología del propio hospital. Se le realizó examen físico, se le indicaron complementarios y se le realizó rayos X de tórax y tomografía que mostraron imágenes sugestivas de neurocisticercosis activa. Se le indicó tratamiento farmacológico y fisioterapia. Lugo de ochenta días el paciente fue egresado, consciente, orientado, asintomático. El objetivo de la presentación es llamar la atención a especialistas que cumplen colaboración en diferentes partes del mundo al ser una enfermedad extremadamente rara en Cuba y a la que se deben enfrentar con cierta frecuencia en otras latitudes.

ABSTRACT Neurocysticercosis is an infection of the central nervous system caused by the accidental ingestion of eggs of Taenia Solium, constituting the most frequent parasitosis of the system itself. It is a common problem in many Latin American, Asian and African countries; in endemic areas, it is considered the main etiology of late-onset epilepsies. The case of a 39-year-old male patient with a history of behavioral disorders and several seizures for a year is presented. For this reason he was transferred to the Main Military Hospital of Luanda and admitted to the Psychiatry Service with a presumptive diagnosis of hysterical neurosis. A month after his discharge, he was referred again this time to the Neurology Service of the hospital itself. A physical examination was performed, supplementary tests were indicated, and a chest X-ray and tomography were performed, which showed images suggestive of active neurocysticercosis. Pharmacological treatment and physiotherapy were indicated. After eighty days, the patient was discharged, conscious, oriented, and asymptomatic. The objective of the presentation is to draw the attention of specialists who collaborate in different parts of the world as it is an extremely rare disease in Cuba and which they must face with certain frequency in other latitudes.

Neurocisticercosis: lesión única cerebral con serología negativa y confirmación post exéresis. Reporte de caso. / Neurocysticercosis: single brain lesion with negative serology and post exeresis confirmation. Case report

Los diagnósticos diferenciales de una lesión única intraparenquimatosa cerebral con borde en anillo son múltiples, desde un proceso infeccioso parasitario hasta una neoplasia primaria del sistema nervioso, por lo que su manejo puede ser controversial y debe tenerse en cuenta la prevalencia epidemiológica según la situación demográfica donde se presente. De esta manera, presentamos el caso de una paciente adulta joven que ingresó al servicio de neurocirugía con sintomatología focal sensitiva asociado a cefalea intermitente, con una TC de encéfalo que reveló una lesión subcortical localizada en la parte superior del giro postcentral izquierdo con edema perilesional importante y realce periférico tras contraste. Se realizaron pruebas de serología en suero y LCR para neuroparásitos, las cuales se reportaron negativas. Se procedió a realizar exéresis completa de la lesión con uso de ecografía intraoperatoria para minimizar tiempo quirúrgico y área de lesión cortical, la cual se envió a estudio de histopatología y reportó el diagnóstico de neurocisticercosis en estadio nodular granulomatoso. Se realiza el presente reporte de caso con una búsqueda exhaustiva en la literatura sobre la sensibilidad y utilidad de las pruebas de serología parasitaria para la confirmación diagnóstica de la neurocisticercosis y para evitar intervenciones neuroquirúrgicas invasivas

The differential diagnoses of single, ring-enhancing brain lesions are multiple, from a parasitic infection to a primary tumor of the central nervous system, therefore, the management of these lesions can be controversial, and the epidemiological prevalence must be taken into account according the demographic situation of the patient. We present the case of a young adult female who was admitted to the neurosurgery service, debuting sensory focal symptoms associated with headache. Brain CT and MRI revealed a subcortical cyst-like lesion in the left superior postcentral gyrus, with large perilesional edema and peripheral enhancement following contrast administration. Serological test for CNS parasites in serum and CSF were negative. Consequently, we realized a complete removal of the cyst with intraoperative ultrasound to optimize the surgical time and the cortical surgical area. The histopathological examination revealed a degenerating cysticercus. For this reason, a bibliographic research was carried out to identify the sensitivity of serological tests for the diagnostic confirmation of neurocysticercosis and thus avoid invasive neurosurgical interventions

A Case of Neurocysticercosis in Immigrant Worker Presented with Seizures

@#Neurocysticercosis is an infection of the central nervous system (CNS) by larval stage of Taenia solium (pork tapeworms) called cysticerci. Humans may acquire the infection through ingestion of T. solium embryonated eggs after consuming contaminated undercooked food or water. Being a multiracial country where pig farming is limited and consumption of raw or undercooked food is an uncommon practice, the prevalence of neurocysticercosis in Malaysia is presumably low. However, through immigration and international travel, cases of neurocysticercosis may go underreported. Due to unfamiliarity with the disease, cases of neurocysticercosis also may be missed in Malaysia. Therefore, thorough history taking and physical examinations with high index of suspicion are required by the clinicians to warrant proper investigations in order to meet the diagnosis of neurocysticercosis. Patients diagnosed with neurocysticercosis should be treated cautiously with anthelmintic, to avoid unwanted overwhelming immunological response that can lead to unfavourable outcomes. This is a case report of a foreign worker who presented with first onset of focal seizure associated with intermittent headache.

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.

Neurocisticercosis extraparenquimatosa: reto terapéutico. A propósito de un caso / Extraparenchymal Neurocysticercosis: Therapeutic Challenge. About a Case

Resumen Introducción: La neurocisticercosis es una parasitosis del sistema nervioso central, causada por la ingesta de huevos de Taenia solium. Presenta una alta prevalencia en regiones de Latinoamérica, del Sudeste asiático y África subsahariana, en donde las situaciones insalubres aún prevalecen. Caso clínico: Mujer de 55 años de edad con cuadro clínico de 2 años de evolución, caracterizado por cefaleas de repetición, las cuales se han intensificado últimamente, agregándose crisis convulsivas tónico-clónicas, lo que motivó su ingreso al servicio de urgencias. Los estudios de neuroimágenes (tomografía y resonancia magnética) evidenciaron la presencia de estructuras vesiculares subaracnoideas compatibles con neurocisticercosis. Se instauró tratamiento cestocida, pero la paciente no regresó a sus citas de seguimiento durante 4 años. En su reingreso se presentó muy sintomática y requirió la administración de 8 ciclos más de tratamiento para poder erradicar los parásitos. Discusión: La gran heterogeneidad y no especificidad de los signos y síntomas dificultan el diagnóstico de neurocisticercosis. Es necesario buscar evidencias complementarias de laboratorio y de imagenología para confirmarlo. El tratamiento de esta enfermedad representa un reto para el médico, particularmente cuando el parásito se localiza afuera del parénquima encefálico, en las cisternas del espacio subaracnoideo y sistema ventricular. En menos de un tercio de estos pacientes los parásitos desaparecen con un solo ciclo de tratamiento cestocida. Conclusión: La neurocisticercosis es una enfermedad estrechamente relacionada con la pobreza, pero es prevenible. La investigación relacionada a mejorar los tratamientos sigue siendo necesaria.

Abstract Introduction: Neurocysticercosis is a parasitosis of the central nervous system, caused by the intake of eggs from taenia solium. It has a high prevalence in certain regions of Latin America, the southeast of Asia, and sub-Saharan Africa, where unhealthy situations still prevail. Clinical case: A 55-year-old woman with clinical symptoms of 2 years of evolution, such as recurrent headaches that had increased recently in addition to tonic-clonic seizures. In these conditions she was admitted to the hospital's emergency department. Neuroimaging studies (tomography and magnetic resonance imaging) showed the presence of subarachnoid vesicular structures compatible with neurocysticercosis. Therefore, a cestocidal treatment was administered but the patient did not return to her follow-up appointments for 4 years. When she finally went to her appointment, she was very symptomatic and required the administration of 8 cycles of treatment to eradicate the parasites. Discussion: The great heterogeneity and the non-specificity of the signs and symptoms difficult making a diagnosis of neurocysticercosis. Therefore, it is important to look for complementary laboratory and imaging evidence to confirm it. The treatment of neurocysticercosis represents a challenge for the physician. Particularly, when the parasite is located outside the brain parenchyma, subarachnoid cisterns and ventricular system. In less than a third of these patients the parasites disappear with a single cycle of cestocidal treatment. Conclusion: Neurocysticercosis is a disease closely related to poverty, but it is preventable. Research focused on treatments for neurocysticercosis is still necessary.

Starry sky appearance of tuberculoma

CNS tuberculosis accounts for only 10% of all cases of tuberculosis, carries a high mortality and morbidity. Tuberculoma of the brain is an important clinical entity. The main challenge in the management of brain tuberculoma is its diagnosis. Hereby, referring case of a 12 years old male child who presented with clinical picture of tuberculosis but radiologically NCC, hence posing a diagnostic dilemma as clinically it was in the favor of tuberculosis whereas radiologically inclination was towards neurocysticercosis. Based on clinical manifestations it was suggestive of meningitis, CSF picture was suggestive of hypoglycorrhachia. CT chest showed miliary pattern and neuroimaging showing multiple ring enhancing lesions. High index of clinical suspicion is required to make a diagnosis and evaluation with reports.