LUIS DOS RAMOS MACHADO
Projetos de Pesquisa
Unidades Organizacionais
Departamento de Neurologia, Faculdade de Medicina - Docente
LIM/15 - Laboratório de Investigação em Neurologia, Hospital das Clínicas, Faculdade de Medicina
LIM/15 - Laboratório de Investigação em Neurologia, Hospital das Clínicas, Faculdade de Medicina
28 resultados
Resultados de Busca
Agora exibindo 1 - 10 de 28
- Arquivos de Neuro-Psiquiatria in the Brazilian Academy of Neurology: natural evolution(2015) MACHADO, Luis dos Ramos; LIVRAMENTO, Jose Antonio
bookPart Abscessos Cerebrais(2013) MACHADO, Luís dos Ramos- Neuroinfection survey at a neurological ward in a Brazilian tertiary teaching hospital(2011) MARCHIORI, Paulo E.; LINO, Angelina M. M.; MACHADO, Luis R.; PEDALINI, Livia M.; BOULOS, Marcos; SCAFF, MilbertoOBJECTIVES: This study was undertaken to characterize the neuroinfection profile in a tertiary neurological ward. INTRODUCTION: Neuroinfection is a worldwide concern and bacterial meningitis, tetanus and cerebral malaria have been reported as the commonest causes in developing countries. METHODS: From 1999 to 2007, all patients admitted to the Neurology Ward of Hospital das Clinicas, Sao Paulo University School of Medicine because of neuroinfection had their medical records reviewed. Age, gender, immunological status, neurological syndrome at presentation, infectious agent and clinical outcome were recorded. RESULTS: Three hundred and seventy four cases of neuroinfectious diseases accounted for 4.2% of ward admissions and the identification of infectious agent was successful in 81% of cases. Mean age was 40.5 +/- 13.4 years, 63.8% were male, 19.7% were immunocompromised patients and meningoencephalitis was the most common clinical presentation despite infectious agent. Viruses and bacteria were equally responsible for 29.4% of neuroinfectious diseases; parasitic, fungal and prion infections accounted for 28%, 9.6% and 3.5% respectively. Human immunodeficiency virus (HIV), herpes simplex virus 1 (HSV1), Mycobacterium tuberculosis, Treponema pallidum, Taenia solium, Schistosoma mansoni, Cryptococcus neoformans and Histoplasma capsulatum were the more common infectious pathogens in the patients. Infection mortality rate was 14.2%, of which 62.3% occurred in immunocompetent patients. CONCLUSION: Our institution appeared to share some results with developed and developing countries. Comparison with literature may be considered as quality control to health assistance.
- Arquivos de Neuro-Psiquiatria has new Editors(2017) MACHADO, Luis dos Ramos; LIVRAMENTO, Jose Antonio
- Neurocysticercosis: stilt some unanswered questions(2014) MACHADO, Luis dos Ramos
- Reduced Diffusion in Neurocysticercosis: Circumstances of Appearance and Possible Natural History Implications(2013) SANTOS, G. T.; LEITE, C. C.; MACHADO, L. R.; MCKINNEY, A. M.; LUCATO, L. T.BACKGROUND AND PURPOSE: Few studies discuss DWI findings in patients with NCC, and their conclusions are variable and contradictory. The aim of our study was to describe DWI findings of a cohort of patients with NCC, emphasizing the frequency of reduced diffusion. MATERIALS AND METHODS: This retrospective study included 48 patients with NCC. Two neuroradiologists analyzed MR images regarding location, number, and stage of NCC lesions. On the basis of visual analysis, they defined, by consensus, the presence of high signal within NCC lesions on DWI and measured their ADC values when feasible. RESULTS: The total number of lesions was 342: parenchymal (263), subarachnoid (65), and intraventricular (14); 83 were DWI hyperintense. The first pattern was a small eccentric hyperintense dot/curvilinear structure on DWI (representing the scolex) noted in intraparenchymal lesions in vesicular (41 lesions, 29%) and colloidal vesicular (18 lesions, 19%) stages, in 14 (22%) subarachnoid lesions, and 2 (14%) intraventricular lesions; rADC calculations were hampered by the intrinsic small dimensions of this finding. The second pattern was the presence of total/subtotal DWI hyperintensity in intraparenchymal lesions, 5 in the colloidal vesicular stage (5%) and 1 in the granular nodular phase (3%). Two subarachnoid lesions also showed the same presentation; in this second pattern, reduced diffusion was present in different degrees, measured by rADC calculations. CONCLUSIONS: DWI may identify the scolex, increasing diagnostic confidence for NCC. Total/subtotal DWI hyperintensity, related to the stage of the lesion, though uncommon, allows including NCC as a consideration in the differential diagnosis of lesions with reduced diffusion and ring enhancement.
conferenceObject Clinical Course of LETM Associated with Neuroschistosomiasis(2013) APOSTOLOS-PEREIRA, Samira; MARCHIORI, Paulo; MACHADO, Luis; LIVRAMENTO, Jose; GOMES, Helio; LUCATO, Leandro; CALLEGARO, DagobertobookPart Infecções do SNC no imunocompetente(2013) MACHADO, Luís dos Ramos- Arquivos de Neuro-Psiquiatria: 80 years(2023) MASSARO, Ayrton; TEIVE, Helio A. G.; LIVRAMENTO, Jose Antonio; MACHADO, Luis dos Ramos; CARAMELLI, Paulo
bookPart Meningites Bacterianas Agudas(2013) MACHADO, Luís dos Ramos
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