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Browsing by Author "Santos, E"

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  • Dyschromatopsia in Multiple Sclerosis Patients: A Marker of Subclinical Involvement?
    Publication . Felgueiras, H; Parra, J; Cruz, S; Pereira, P; Santos, A; Rua, A; Meira, D; Fonseca, P; Pedrosa, C; Cardoso, J; Almeida, C; Araújo, M; Santos, E
    BACKGROUND: In multiple sclerosis (MS), even in the absence of a clinical episode of optic neuritis (ON), the optic nerve and retinal nerve fiber layer (RNFL) may be damaged leading to dyschromatopsia. Subclinical dyschromatopsia has been described in MS associated with lower motor and cognitive performances. OBJECTIVES: To set the prevalence of dyschromatopsia in eyes of MS patients without a history of ON, to compare its prevalence in patients with and without ON history, and to explore the association between dyschromatopsia and disease duration, average peripapillary RNFL thickness, macular volume, and cognitive and motor performances. METHODS: An observational cross-sectional study was conducted at multiple medical centers. Data were collected after single neurological and ophthalmological evaluations. Dyschromatopsia was defined by the presence of at least 1 error using Hardy-Rand-Rittler plates. RESULTS: In our population of 125 patients, 79 patients (63.2%) never had ON and 35 (28.8%) had unilateral ON. The prevalence of dyschromatopsia in eyes of patients without ON was 25.7%. Patients with dyschromatopsia had a statistically significant lower RNFL thickness (P = 0.004 and P = 0.040, right and left eyes, respectively) and worse performance in symbol digit modalities test (P = 0.012). No differences were found in macular volume or motor function tasks. CONCLUSIONS: Dyschromatopsia occurs frequently in MS patients. It may be associated with a worse disease status and possibly serve as a marker for the detection of subclinical disease progression since it was detected even in the absence of ON. It correlated with thinner peripapillary RNFL thickness and inferior cognitive performance.
    2016Journal article Restricted access Show more
  • Granulomatose de Wegener
    Publication . João, C; Santos, E; Leite, A; Miranda, C; Serra, I; Revés, L; Brandão, T; Martins, F; Freitas, PT; Dutschmann, L
    A granulomatose de Wegener corresponde a uma vasculite sistémica com atingimento das artérias de pequeno e médio calibre, em particular das vias aéreas superiores e inferiores e do rim, incluindo-se no diagnóstico diferencial das síndromas pulmão-rim. Os AA apresentam o caso clínico de uma senhora de 59 anos, internada na Unidade de Cuidados Intensivos Polivalente (UCIP) do Hospital Fernando da Fonseca com um quadro de insuficiência respiratória, hemoptises e insuficiência renal. Descreve-se o estudo etiológico desta situação, concluindo tratar-se de um caso de granulomatose de Wegener. A propósito deste caso são discutidos aspectos relevantes do diagnóstico, terapêutica e seguimento destes doentes.
    2001Journal article Open access Show more