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Lisbon, Portugal

Gil-Gouveia R.,Headache Outpatient Clinic | Fonseca A.,Hospital de Santa Maria
Clinical Journal of Pain | Year: 2013

BACKGROUND: Symptomatic cluster-like headache has been described with some ophthalmological disorders such as glaucoma, orbital myositis, posterior scleritis, enucleation, herpes zoster ophthalmicus, and cataract surgery. CASE REPORT: We report a new case of a 79-year-old nonsmoker woman who developed cluster-like symptoms 2 days after a cataract surgery and review the 2 previously reported cases. DISCUSSION: The surgical technique of cataract removal involves corneal incision, which can trigger the trigeminal-autonomic reflex, a pathophysiological mechanism potentially implicated in idiopathic cluster headache. Differential diagnosis in these cases includes surgical and anesthetic complications. Copyright © 2013 by Lippincott Williams & Wilkins. Source


Ferro J.M.,Hospital de Santa Maria | Massaro A.R.,University of Kentucky | Mas J.-L.,University of Paris Descartes
The Lancet Neurology | Year: 2010

Despite improvements in diagnosis and treatment, ischaemic stroke in young adults remains a catastrophic event from the patients' perspective. Stroke can cause death, disability, and hamper quality of life. For the neurologist treating a young adult with suspected ischaemic stroke, the diagnostic challenge is to identify its cause. Contemporary neuroimaging of the brain and its vessels, and a comprehensive cardiac assessment, will enable identification of the most frequent causes of stroke in this age group: cardioembolism and arterial dissection. Specific diagnostic tests for the many other rare causes of ischaemic stroke in young adults (angiography, CSF examination, screening for vasculitis and thrombophilia, genetic testing, and ophthalmological examination) should be guided by suspected clinical findings or by the high prevalence of diseases associated with stroke in some countries. © 2010 Elsevier Ltd. Source


Santos P.,Hospital de Santa Maria | Cunha T.M.,Instituto Portugues Of Oncologia Of Lisbon Francisco Gentil
Diagnostic and Interventional Radiology | Year: 2015

Uterine sarcomas are a rare heterogeneous group of tumors of mesenchymal origin, accounting for approximately 8% of uterine malignancies. They comprise leiomyosarcoma, endometrial stromal sarcoma, undifferentiated endometrial sarcoma, and adenosarcoma. Compared with the more common endometrial carcinomas, uterine sarcomas behave more aggressively and are associated with a poorer prognosis. Due to their distinct clinical and biological behavior, the International Federation of Gynecology and Obstetrics introduced a new staging system for uterine sarcomas in 2009, categorizing uterine carcinosarcoma as a variant of endometrial carcinoma, rather than a pure sarcoma. Magnetic resonance imaging (MRI) has a developing role in the assessment of these malignancies. Features such as tumor localization, irregular or nodular margins, necrosis, rapid growth, intense contrast enhancement, and restriction at diffusion-weighted imaging can suggest the diagnosis and help differentiate from more common leiomyomas and endometrial carcinoma. MRI is therefore extremely useful in preoperative detection and staging and, consequently, in determination of appropriate management. This pictorial review aims to discuss the clinical features of uterine sarcomas, as well as their most common appearances and distinct characteristics in MRI. © Turkish Society of Radiology 2015. Source


Davalos A.,Hospital Universitari Germans Trias i Pujol | Alvarez-Sabin J.,Hospital Universitari Of La Vall Dhebron | Castillo J.,Hospital Clinico Universitario Of Santiago | Diez-Tejedor E.,Hospital Universitario La Paz | And 7 more authors.
The Lancet | Year: 2012

Background Citicoline is approved in some countries for the treatment of acute ischaemic stroke. The drug has shown some evidence of efficacy in a pooled analysis. We sought to confirm the efficacy of citicoline in a larger trial. Methods We undertook a randomised, placebo-controlled, sequential trial in patients with moderate-to-severe acute ischaemic stroke admitted at university hospitals in Germany, Portugal, and Spain. Using a centralised minimisation process, patients were randomly assigned in a 1:1 ratio to receive citicoline or placebo within 24 h after the onset of symptoms (1000 mg every 12 h intravenously during the first 3 days and orally thereafter for a total of 6 weeks [2×500 mg oral tablets given every 12 h]). All study participants were masked. The primary outcome was recovery at 90 days measured by a global test combining three measures of success: National Institutes of Health Stroke Scale ≤1, modified Rankin score ≤1, and Barthel Index ≥95. Safety endpoints included symptomatic intracranial haemorrhage in patients treated with recombinant tissue plasminogen activator, neurological deterioration, and mortality. This trial is registered, NCT00331890. Results 2298 patients were enrolled into the study from Nov 26, 2006, to Oct 27, 2011. 37 centres in Spain, 11 in Portugal, and 11 in Germany recruited patients. Of the 2298 patients who gave informed consent and underwent randomisation, 1148 were assigned to citicoline and 1150 to placebo. The trial was stopped for futility at the third interim analysis on the basis of complete data from 2078 patients. The final randomised analysis was based on data for 2298 patients: 1148 in citicoline group and 1150 in placebo group. Global recovery was similar in both groups (odds ratio 1.03, 95% CI 0.86-1.25; p=0.364). No significant differences were reported in the safety variables nor in the rate of adverse events. Interpretation Under the circumstances of the ICTUS trial, citicoline is not efficacious in the treatment of moderateto-severe acute ischaemic stroke. Source


Castro R.E.,University of Lisbon | Ferreira D.M.S.,University of Lisbon | Afonso M.B.,University of Lisbon | Borralho P.M.,University of Lisbon | And 5 more authors.
Journal of Hepatology | Year: 2013

Background & Aims: Non-alcoholic fatty liver disease (NAFLD) comprises a spectrum of stages from simple steatosis to non-alcoholic steatohepatitis (NASH). However, disease pathogenesis remains largely unknown. microRNA (miRNA or miR) expression has recently been reported to be altered in human NASH, and modulated by ursodeoxycholic acid (UDCA) in the rat liver. Here, we aimed at evaluating the miR-34a/Sirtuin 1(SIRT1)/p53 pro-apoptotic pathway in human NAFLD, and to elucidate its function and modulation by UDCA in the rat liver and primary rat hepatocytes. Methods: Liver biopsies were obtained from NAFLD morbid obese patients undergoing bariatric surgery. Rat livers were collected from animals fed a 0.4% UDCA diets. Primary rat hepatocytes were incubated with bile acids or free fatty acids (FFAs) and transfected with a specific miRNA-34a precursor and/or with a p53 overexpression plasmid. p53 transcriptional activity was assessed by ELISA and target reporter constructs. Results: miR-34a, apoptosis and acetylated p53 increased with disease severity, while SIRT1 diminished in the NAFLD liver. UDCA inhibited the miR-34a/SIRT1/p53 pathway in the rat liver in vivo and in primary rat hepatocytes. miR-34a overexpression confirmed its targeting by UDCA, which prevented miR-34a-dependent repression of SIRT1, p53 acetylation, and apoptosis. Augmented apoptosis by FFAs in miR-34a overexpressing cells was also inhibited by UDCA. Finally, p53 overexpression activated miR-34a/SIRT1/p53, which in turn was inhibited by UDCA, via decreased p53 transcriptional activity. Conclusions: Our results support a link between liver cell apoptosis and miR-34a/SIRT1/p53 signaling, specifically modulated by UDCA, and NAFLD severity. Potential endogenous modulators of NAFLD pathogenesis may ultimately provide new tools for therapeutic intervention. © 2012 European Association for the Study of the Liver. Published by Elsevier B.V. All rights reserved. Source

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