20 research outputs found

    SoroprevalĂȘncia do anticorpo NMO-IgG em pacientes brasileiros com neuromielite Ăłptica

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    OBJECTIVE: To determine the seroprevalence of neuromyelitis optica antibody (NMO)-IgG in Brazilian patients with clinical diagnosis of relapsing neuromyelitis optica, also known as Devic's disease. METHOD: We determined NMO-IgG titers in 28 patients (25 of them females) that fulfilled the 1999 NMO diagnostic criteria proposed by Wingerchuk et al. RESULTS: NMO-IgG was detected in 18 NMO patients (64.3%). CONCLUSION: Our results showed that seroprevalence of NMO-IgG in Brazilian NMO patients was similar to the observed in other studies.OBJETIVO: Determinar a soroprevalĂȘncia do anticorpo neuromielite Ăłptica (NMO)-IgG em pacientes brasileiros com diagnĂłstico de neuromielite Ăłptica recorrente, tambĂ©m conhecida como doença de Devic. MÉTODO: NĂłs pesquisamos a presença do anticorpo NMO-IgG em 28 pacientes (25 do sexo feminino) que preenchiam os critĂ©rios diagnĂłsticos para NMO propostos por Wingerchuk et al. em 1999. RESULTADOS: Dezoito pacientes (64,3%) apresentaram a pesquisa positiva do NMO-IgG. CONCLUSÃO: Nossos resultados demonstraram que a soroprevalĂȘncia do anticorpo NMO-IgG em pacientes brasileiros com NMO Ă© semelhante Ă quela encontrada em outros estudos

    Cerebral Embolic Activity in a Patient during Acute Crisis of Takayasu's Arteritis

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    Takayasu's arteritis is a disease that affects large vessels and may cause neurological symptoms either by stenoses/occlusions or embolisms from vessels with an inflammatory process. Transcranial Doppler (TCD) ultrasound can provide useful information for diagnosis and monitoring during the active phase of the disease. Cerebral embolic signals can be detected by TCD and have been considered a risk factor for vascular events. We report a patient in whom TCD ultrasound was used to monitor cerebral embolic signals during the active phase of the disease. This case report suggests that embolic activity in Takayasu's arteritis may represent disease activity, and its monitoring may be useful for evaluating the response to therapy

    Estudo de bandas oligoclonais restritas ao lĂ­quido cefalorraquidiano em pacientes com esclerose mĂșltipla na cidade de SĂŁo Paulo

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    The frequency of oligoclonal bands (OCB) restricted to the cerebrospinal fluid (CSF) from patients with multiple sclerosis (MS) varies widely in different populations. The objective of this study was to determine the frequency of these OCB in a group of MS patients in the city of SĂŁo Paulo. Techniques used to detect OCB consisted of isoelectric focusing followed by immunoblotting. Oligoclonal bands were found in 49 (54.4%) out of 90 patients with clinically definite MS; in (31.2%) of the 16 patients with clinically isolated syndrome; in 7 (17.9%) of 39 patients with inflammatory disorders of the central nervous system (IDCNS), and in none of the individuals with no neurological condition (control group). The specificity of the method was 100% when compared to the control group and 82.1% when compared to the IDCNS group. These results suggest that the frequency of CSF OCB is much lower in Brazilian MS patients from SĂŁo Paulo city than that reported in MS series from Caucasian populations.A frequĂȘncia da detecção de bandas oligoclonais (BOC) restritas ao lĂ­quido cerebrorraquidiano (LCR) em pacientes com esclerose mĂșltipla (EM) varia amplamente em diferentes populaçÔes. O objetivo deste estudo foi determinar a frequĂȘncia destas BOC em pacientes com EM em amostra de população da cidade de SĂŁo Paulo. A tĂ©cnica utilizada para a detecção das BOC foi a focalização isoelĂ©trica, seguida do immunoblotting. BOC foram detectadas: em 49 (54,4%) de 90 pacientes com EM clinicamente definida; em 5 (31,2%) de 16 pacientes com sĂ­ndrome clĂ­nica isolada; em 7 (17,9%) de 30 pacientes com doenças inflamatĂłrias do sistema nervoso central (DISNC); e em nenhum indivĂ­duo sem doença neurolĂłgica. A especificidade do mĂ©todo foi 100% quando comparada ao grupo controle e 82,1% quando comparada ao grupo de DISNC. Estes resultados sugerem que a freqĂŒĂȘncia de BOC no LCR Ă© mais baixa em pacientes da cidade de SĂŁo Paulo portadores de EM do que aquelas descritas em populaçÔes caucasianas
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