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1.
Rheumatol Int ; 31(6): 831-5, 2011 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-20730459

RESUMO

Gouty panniculitis is an unusual clinical manifestation of gout, characterized by the deposition of monosodium urate crystals in the lobular hypodermis. Its pathogenesis is poorly understood but is associated with hyperuricemia, and the clinical presence of indurate subcutaneous plaques, which may precede or appear subsequently to the articular clinical expression of tophaceous gout. The aim of this report is to describe the clinical characteristics and potential risk factors for the development of lobular panniculitis secondary to chronic tophaceous gout. This is a retrospective clinical review of 6 patients with gouty panniculitis seen at the rheumatology service at the National University of Colombia. All cases fulfill diagnostic criteria for gout. The presenting clinical characteristics of each case were analyzed. All 6 patients were men, with an average age of 26 years. Two patients initially presented with cutaneous manifestations, and in the remainder 4 joint involvements preceded the cutaneous manifestations. Articular involvement first developed in lower extremities, of intermittent nature, and subsequent occurrence of polyarthritis of upper and lower extremities. A positive family history of gout was observed in half of the patients. Smoking and high alcohol intake were relevant risk factors. On physical examination, all exhibited the presence of erythematous, irregular surface, deep indurate subcutaneous plaques. Biopsy of skin and deep dermis including panniculus revealed the presence of granulomatous inflammatory changes with deposition of amorphous eosinophilic material surrounded by palisading histocytes and lymphocytes. Characteristic negative birefringent monosodium urate crystals were observed in the synovial fluid of patients with arthritis. All patients exhibited high levels of serum uric acid and were non-complaint to treatment with allopurinol, NSAIDs, and colchicine. Gouty panniculitis should be considered in the differential diagnosis of panniculitis, especially in the presence of high levels of uric acid. It is usually observed in the third decade of life and may appear prior to the inflammatory articular manifestations of tophaceous gout.


Assuntos
Gota/diagnóstico , Hiperuricemia/diagnóstico , Paniculite/diagnóstico , Adulto , Alopurinol/uso terapêutico , Colchicina/uso terapêutico , Cristalização , Gota/complicações , Gota/tratamento farmacológico , Gota/metabolismo , Supressores da Gota/uso terapêutico , Humanos , Hiperuricemia/complicações , Masculino , Microscopia de Polarização , Pessoa de Meia-Idade , Paniculite/etiologia , Paniculite/metabolismo , Estudos Retrospectivos , Líquido Sinovial/química , Ácido Úrico/análise , Ácido Úrico/metabolismo
2.
J Neurol Sci ; 217(1): 61-4, 2004 Jan 15.
Artigo em Inglês | MEDLINE | ID: mdl-14675611

RESUMO

Trypanosoma cruzi infection is a common cause of cardiopathy in South America leading it eventually to an established stroke; however, the association between T. cruzi infection itself and cerebrovascular disease is still unknown. We did a case-control study at Eastern Colombia and found that T. cruzi infection was more frequent and statistically significant in stroke cases (24.4%) than controls (1.9%), (Chi square: 21.72; OR: 16.13; 95% confidence interval (CI): 3.64-71.4; p<0.00001). After removing the seropositive patients with cardiological abnormalities, the significance still remained by multivariate analysis (p<0.05). This is the first case-control study that demonstrated a significant link between this infection and symptomatic cerebrovascular disease, mainly ischemic, regardless of cardiac abnormalities. Therefore, we recommend that patients with stroke must be screened for T. cruzi infection if they currently live or have lived in places where this parasite is considered endemic.


Assuntos
Transtornos Cerebrovasculares/parasitologia , Doença de Chagas , Acidente Vascular Cerebral/parasitologia , Trypanosoma cruzi/isolamento & purificação , Fatores Etários , Idoso , Idoso de 80 Anos ou mais , Animais , Estudos de Casos e Controles , Transtornos Cerebrovasculares/sangue , Transtornos Cerebrovasculares/epidemiologia , Doença de Chagas/complicações , Doença de Chagas/epidemiologia , Doença de Chagas/virologia , Colômbia/epidemiologia , Intervalos de Confiança , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Fatores de Risco , Fatores Sexuais , Acidente Vascular Cerebral/sangue , Acidente Vascular Cerebral/epidemiologia
3.
Biomedica ; 23(4): 462-75, 2003 Dec.
Artigo em Espanhol | MEDLINE | ID: mdl-14968924

RESUMO

Trypanosoma cruzi, causative agent of Chagas disease, affects not only cardiac and intestinal structures but also neurological structures. A high prevalence of T. cruzi infection occurs in Colombia, prompting the present study. First, a qualitative metaanalysis was undertaken using the PubMed database, the electronic internet engine Altavista, Colombian journals indexed by Colciencias, and three relevant textbooks. The following key words were used: Trypanosoma, Chagas disease, nervous system, spinal cord, central nervous system, peripheral nervous system, neuromuscular junction, autonomic nervous system, muscle, muscle disorders, neuromuscular disease, neuromuscular disorders, synapticopathies and dysautonomia. The documents analyzed numbered 116 and included original papers, reviews, case reports, editorials, brief communications, conferences and book chapters. At minimum, each document included data involving ELISA testing, indirect immunofluorescense, or parasitemia levels in the clinical, serological or histopathological studies. Polymerase chain reaction (PCR) studies were not included because of the recent introduction of PCR as a confirmatory technique for Chagas disease in Colombia. Chagas disease affects the central, the peripheral and the autonomic nervous system in humans, although its effects on the antonomic system is most commonly investigated in Colombia. Neurological lesions must be evaluated carefully, because patients may be misdiagnosed and treated as carriers of 'idiopathic' diseases. Neurological pathologies poses a serious threat in Colombia due to the prevalence of Chagas disease.


Assuntos
Infecções Protozoárias do Sistema Nervoso Central/diagnóstico , Doença de Chagas/diagnóstico , Infecções Protozoárias do Sistema Nervoso Central/complicações , Infecções Protozoárias do Sistema Nervoso Central/fisiopatologia , Doença de Chagas/complicações , Doença de Chagas/fisiopatologia , Humanos
5.
Biomédica (Bogotá) ; Biomédica (Bogotá);23(4): 462-475, dic. 2003. ilus
Artigo em Espanhol | LILACS | ID: lil-356796

RESUMO

Trypanosoma cruzi es el agente causal de la enfermedad de Chagas, patología que afecta principalmente estructuras cardiacas e intestinales. Sin embargo, las complicaciones neurológicas no han sido adecuadamente identificadas y estudiadas en Colombia, a pesar de existir allí áreas geográficas que presentan prevalencias de infección iguales o mayores de las informadas en otras latitudes, en donde se le ha dado una mayor atención a este tipo de complicaciones, desde hace ya varios años. Realizamos un metanálisis cualitativo sobre el tema, en la base de datos PubMed, en el motor de búsqueda Altavista y en las revistas colombianas indexadas por Colciencias, así como en tres libros que trataban el tópico de manera específica. Usamos las palabras claves: Trypanosoma, Chagas' disease, nervous system, spinal cord, central nervous system, peripheral nervous system, neuromuscular junction, autonomic nervous system, muscle, muscle disorders, neuromuscular disease, neuromuscular disorders, synapticopathies y dysautonomia. Como criterio de inclusión se debía haber realizado e informado la prueba de ELISA, inmunofluorescencia indirecta, presencia de parasitemia o presencia de parásitos en los tejidos, dependiendo de si se trataba de un estudio clínico-serológico o histopatólogico. No tuvimos en cuenta como criterio de inclusión la realización de la prueba de reacción en cadena de la polimerasa, dado que sólo hasta épocas recientes se introdujo esta técnica en el estudio de esta patología en Colombia. Encontramos 116 manuscritos con los términos antes descritos; éstos incluían artículos originales, revisiones, informe de casos, editoriales y comunicaciones breves, así como conferencias y capítulos de libros que cumplieron con los requisitos planteados. En ellos se apreció claramente cómo la enfermedad de Chagas afecta todos los niveles del sistema nervioso central, periférico y autonómico, siendo este último sistema el que se ha estudiado con mayor profundidad en nuestro país. Consideramos que el compromiso neurosistémico producido por T. cruzi debe ser evaluado de una manera más profunda a partir de la fecha, dado que muchos de los pacientes pueden estar siendo diagnosticados, tratados y seguidos como portadores de enfermedades 'idiopáticas'. Dichas patologías pueden llegar a convertirse en una seria amenaza para la salud de muchos colombianos si no se toman las medidas de prevención y control adecuadas. Por tanto, es necesario que...


Assuntos
Doença de Chagas , Doenças Neuromusculares , Trypanosoma cruzi , Metanálise
6.
Acta neurol. colomb ; 17(3): 171-177, sept. 2001.
Artigo em Espanhol | LILACS | ID: lil-307262

RESUMO

Diversas investigaciones han establecido la asociación entre enfermedades infeccionsas y parasitarias y enfermedad cerebrovascular. El objetivo de esta investigación fue establecer y caracterizar una posible asociación entre infección por Trypanosoma cruzi y enfermedad cerebrovascular en una población del oriente colombiano. Se utilizaron como grupos de referencia los pacientes atendidos en la Unidad de Diálisis del Hospital Ramón Gonzalez Valencia de Bucaramanga entre enero 1 y junio 30 de 1999. Se concluye que parece posible que la infección por T. cruzi esté en la génesis de la enfermedad cerebrovascular, al desencadenar fenómenos embólicos y de disfunción endotelial. Es recomendable realizar una investigación serológica en los pacientes con ECV en las regiones con alta prevalencia de infección por este parásito. Se requieren más estudios para caracterizar la asociación entre infección por T. cruzi y ECV


Assuntos
Transtornos Cerebrovasculares , Trypanosoma cruzi , Colômbia
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