NEU - Artigos publicados em revistas não indexadas
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- Acquired immunodeficiency syndrome and the risk of strokePublication . Cole, J; Pinto, A; Hebel, J; Buchholz, D; Earley, C; Johnson, C; Macko, R; Price, T; Sloan, M; Stern, B; Wityk, R; Wozniak, M; Kittner, SBACKGROUND AND PURPOSE: Although acquired immunodeficiency syndrome (AIDS) is thought to increase the risk of stroke, few data exist to quantify this risk. This is the first population-based study to quantify the AIDS-associated risk of stroke. METHODS: We identified all incident ischemic stroke (IS) and intracerebral hemorrhage (ICH) cases among young adults 15 to 44 years of age in central Maryland and Washington, DC, who were discharged from any of the 46 hospitals in the study area in 1988 and 1991. Using data from the medical records, 2 neurologists reviewed each case to confirm the diagnosis. Cases of AIDS among these patients with stroke were defined using Centers for Disease Control and Prevention criteria (1987). The number of cases of AIDS in the central Maryland and Washington population during 1988 and 1991 was determined from regional health departments working with the Centers for Disease Control and Prevention. Poisson regression was used to estimate the age-, race-, and sex-adjusted relative risk of stroke associated with AIDS. RESULTS: There were 385 IS cases (6 with AIDS) and 171 ICH cases (6 with AIDS). The incidences of IS and ICH among persons with AIDS were both 0.2% per year. AIDS conferred an adjusted relative risk of 13.7 (95% confidence interval [CI], 6.1 to 30.8) for IS and 25.5 (95% CI, 11.2 to 58.0) for ICH. After exclusion of 5 cases of stroke in AIDS patients in whom other potential causes were identified, AIDS patients continued to have an increased risk of stroke with an adjusted relative risk of 9.1 (95% CI, 3.4 to 24.6) for IS and 12.7 (95% CI, 4.0 to 40.0) for ICH. CONCLUSIONS: This population-based study found that AIDS is strongly associated with both IS and ICH.
- AIDS/HIV infection and cerebrovascular diseasePublication . Pinto, AThe occurrence of cerebrovascular disease in patients with human immunodeficiency virus (HIV) infection has been reported mainly in advanced stages of the disease and was generally associated with nonbacterial thrombotic endocarditis, opportunistic infections, or tumors, although in recent series a large number of cryptogenic strokes were found, probably related to HIV vasculopathy. Recently a population-based study reported a strong association between acquired immunodeficiency syndrome (AIDS) and both ischemic stroke and intracerebral hemorrhage, with an incidence of 0.2% per year. However, with the advent of highly active retroviral therapy (HAART)-causing immune restoration in HAARTtreated patients and avoiding early death and leading to a lengthening of the disease free-survival, an older population was created, which is at higher risk for stroke. Furthermore, recent evidence suggests that accelerated atherosclerosis may be a potential risk for stroke in these patients as it accompanies dyslipidemia and insulin resistance that were found to be more frequent among patients in the HAART regimen. The relationship of HIV infection and stroke is undergoing remarkable changes and epidemiological studies should be performed on aging HIV populations to state the impact of this new information on the incidence of cerebrovascular disease in HIV-infected patients and to identify factors that are associated with its occurrence.
- Alterações mesiotemporais em doentes com neurossífilisPublication . Bousende, M; Cravo, I; Lopes, L; Gonçalves, C; Herrero Valverde, A; Palma, TObjectivos: Avaliar e descrever os achados clínico-imagiológicos de dois doentes com alterações mesiotemporais num contexto de neurossífilis. Métodos: Foram revistos dois casos de neurossífilis com lesões mesiotemporais. Os dados clínicos foram recolhidos dos proces - sos dos doentes, incluindo sexo, idade, apresentação clínica, alterações laboratoriais, electroencefalograma, tratamento e evolução clínica. Foram reavaliadas as ressonâncias magnéticas iniciais e de seguimento dos pacientes. Resultados: Apresentamos dois doentes do sexo masculino, 45 e 43 anos, imunocompetentes e sem história de sífilis conhecida. Ambos apresentavam história de alterações do comportamento, desorientação e alterações mnésicas com semanas de evolução. Laboratorialmente os resultados foram compatíveis com neurossífilis (TPHA e VDRL no sangue e líquor), sendo as serologias para HSV negativas. Na ressonância magnética identificaram-se lesões da substância branca temporal, amígdalas, hipocampos, gyri para - hipocampi e ínsulas. Foi realizada terapêutica com penicilina G durante 14 dias, com evolução clínico-imagiológica favorável. Conclusões: A variabilidade da apresentação clínica e imagiológica na neurossífilis dificulta o seu diagnóstico. O início precoce do tratamento melhora significativamente o prognóstico dos doentes, pelo que um diagnóstico atempado é determinante. Do ponto de vista imagiológico, a neurossífilis deverá ser considerada como diagnóstico diferencial nos casos de lesões mesiotemporais, alertando os clínicos para a importância da sua investigação laboratorial.
- An Adult with Episodic Abnormal Limb PosturingPublication . Santos, M; Rebordão, L; Leitão, L; Costa, C; Lobo, P
- Behavioral response to headache: a comparison between migraine and tension-type headache.Publication . Martins, I; Parreira, EOBJECTIVE: To compare patients with migraine and tension-type headache in their behavior during the attacks and the maneuvers used to relieve the pain. BACKGROUND: Patients with headache often perform nonpharmacological measures to relieve the pain, but it is not known if these behaviors vary with the diagnosis, clinical features, and pathogenesis. METHODS: One hundred consecutive patients with either migraine (n = 72 ) or tension-type headache (n = 28) were questioned (including the use of a checklist) concerning their usual behavior during the attacks and nonpharmacological maneuvers performed to relieve the pain. The results of the two types of headache were compared. RESULTS: Patients with migraine tended to perform more maneuvers than individuals with tension-type headache (mean, 6.2 versus 3). These maneuvers included pressing and applying cold stimuli to the painful site, trying to sleep, changing posture, sitting or reclining in bed (using more pillows than usual to lay down), isolating themselves, using symptomatic medication, inducing vomiting, changing diet, and becoming immobile during the attacks. The only measure predominantly reported by patients with tension-type headache was scalp massage. However, the benefit derived from these measures was not significantly different between the two groups (except for a significantly better response to isolation, local pressure, local cold stimulation, and symptomatic medication in migraineurs). CONCLUSIONS: The behavior of patients during headache attacks varies with the diagnosis. Measures that do not always result in pain relief are performed to prevent its worsening or to improve associated symptoms. These behavioral differences may be due to the different pathogenesis of the attacks or to different styles of dealing with the pain. They can also aid the differential diagnosis between headaches in doubtful cases.
- Bethlem Myopathy Phenotypes and Follow Up: Description of 8 Patients at the Mildest End of the Spectrum.Publication . Cruz, S; Figueroa-Bonaparte, S; Gallardo, E; de Becdelièvre, A; Gartioux, C; Allamand, V; Piñol, P; Garcia, MA; Jiménez-Mallebriera, C; Llauger, J; González-Rodríguez, L; Cortes-Vicente, E; Illa, I; Díaz-Manera, JThe classical phenotypes of collagen VI-associated myopathies are well described. Little is known, however, about the progression of patients at the mildest end of the clinical spectrum. In this report, we describe the clinical findings and the results of MRI, muscle biopsy, collagen VI expression in cultured skin fibroblasts and genetic tests of a series of patients with Bethlem myopathy. Our series highlights the existence of mild presentations of this disorder that progresses only slightly and can easily be overlooked. Analysis of the genetic studies suggests that missense mutations can be associated to a milder clinical presentation. Muscle MRI is extremely useful as it shows a pathognomonic pattern in most patients, especially those with some degree of muscle weakness.
- BP Reduction, Kidney Function Decline, and Cardiovascular Events in Patients without CKD.Publication . Magriço, R; Vieira, M; Dias, C; Leitão, L; Neves, JBACKGROUND AND OBJECTIVES: In the Systolic Blood Pressure Intervention Trial (SPRINT), intensive systolic BP treatment (target <120 mm Hg) was associated with fewer cardiovascular events and higher incidence of kidney function decline compared with standard treatment (target <140 mm Hg). We evaluated the association between mean arterial pressure reduction, kidney function decline, and cardiovascular events in patients without CKD. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS: We categorized patients in the intensive treatment group of the SPRINT according to mean arterial pressure reduction throughout follow-up: <20, 20 to <40, and ≥40 mm Hg. We defined the primary outcome as kidney function decline (≥30% reduction in eGFR to <60 ml/min per 1.73 m2 on two consecutive determinations at 3-month intervals), and we defined the secondary outcome as cardiovascular events. In a propensity score analysis, patients in each mean arterial pressure reduction category from the intensive treatment group were matched with patients from the standard treatment group to calculate the number needed to treat regarding cardiovascular events and the number needed to harm regarding kidney function decline. RESULTS: In the intensive treatment group, 1138 (34%) patients attained mean arterial pressure reduction <20 mm Hg, 1857 (56%) attained 20 to <40 mm Hg, and 309 (9%) attained ≥40 mm Hg. Adjusted hazard ratios for kidney function decline were 2.10 (95% confidence interval, 1.22 to 3.59) for mean arterial pressure reduction between 20 and 40 mm Hg and 6.22 (95% confidence interval, 2.75 to 14.08) for mean arterial pressure reduction ≥40 mm Hg. In propensity score analysis, mean arterial pressure reduction <20 mm Hg presented a number needed to treat of 44 and a number needed to harm of 65, reduction between 20 and <40 mm Hg presented a number needed to treat of 42 and a number needed to harm of 35, and reduction ≥40 mm Hg presented a number needed to treat of 95 and a number needed to harm of 16. CONCLUSIONS: In the intensive treatment group of SPRINT, larger declines in mean arterial pressure were associated with higher incidence of kidney function decline. Intensive treatment seemed to be less favorable when a larger reduction in mean arterial pressure was needed to attain the BP target.
- Brain mapping of epileptic activity in a case of idiopathic occipital lobe epilepsy (Panayiotopoulos syndrome)Publication . Leal, A; Nunes, S; Martins, A; Secca, M; Jordão, CThe Panayiotopoulos type of occipital lobe epilepsy has generated great interest, but the particular brain areas involved in the peculiar seizure manifestations have not been established. We studied a patient with the syndrome, using high-resolution EEG and simultaneous EEG and functional magnetic resonance imaging (fMRI). Resolution of the scalp EEG was improved using a realistic spline Laplacian algorithm, and produced a complex distribution of current sinks and sources over the occipital lobe. The spike-related blood oxygen level dependent (BOLD) effect was multifocal, with clusters in lateral and inferior occipital lobe and lateral and anterior temporal lobe. We also performed regional dipole seeding in BOLD clusters to determine their relative contribution to generation of scalp spikes. The integrated model of the neurophysiologic and vascular data strongly suggests that the epileptic activity originates in the lateral occipital area, spreading to the occipital pole and lateral temporal lobe.
- Caffeine consumption and mortality in chronic kidney disease: a nationally representative analysisPublication . Vieira, M; Magriço, R; Dias, C; Leitão, L; Neves, JSBACKGROUND: An inverse relationship between coffee consumption and mortality has been reported in the general population. However, the association between caffeine consumption and mortality in patients with chronic kidney disease (CKD) remains uncertain. METHODS: We analysed 4863 non-institutionalized USA adults with CKD [defined by an estimated glomerular filtration rate (eGFR) of 15-60 mL/min/1.73 m2 and/or a urinary albumin:creatinine ratio >30 mg/g] in a nationwide study using the National Health and Nutrition Examination Survey (NHANES) 1999-2010. Caffeine consumption was evaluated by 24-h dietary recalls at baseline and all-cause, cardiovascular and cancer mortality were evaluated until 31 December 2011. We also performed an analysis of caffeine consumption according to its source (coffee, tea and soft drinks). Quartiles of caffeine consumption were <28.2 mg/day (Q1), 28.2-103.0 (Q2), 103.01-213.5 (Q3) and >213.5 (Q4). RESULTS: During a median follow-up of 60 months, 1283 participants died. Comparing with Q1 of caffeine consumption, the adjusted hazard ratio for all-cause mortality was 0.74 [95% confidence interval (CI) 0.60-0.91] for Q2, 0.74 (95% CI 0.62-0.89) for Q3 and 0.78 (95% CI 0.62-0.98) for Q4 (P = 0.02 for trend across quartiles). There were no significant interactions between caffeine consumption quartiles and CKD stages or urinary albumin:creatinine ratio categories regarding all-cause mortality.
- Caffeine Consumption and Mortality in Diabetes: An Analysis of NHANES 1999-2010.Publication . Neves, J; Leitão, L; Magriço, R; Vieira, M; Dias, C; Oliveira, A; Carvalho, D; Claggett, BAim: An inverse relationship between coffee consumption and mortality has been reported in the general population. However, the effect of coffee consumption in diabetes remains unclear. We aimed to evaluate the association of caffeine consumption and caffeine source with mortality among patients with diabetes. Methods: We examined the association of caffeine consumption with mortality among 1974 women and 1974 men with diabetes, using the National Health and Nutrition Examination Survey (NHANES) 1999-2010. Caffeine consumption was assessed at baseline using 24 h dietary recalls. Cox proportional hazard models were fitted to estimate hazard ratios (HR) for all-cause, cardiovascular, and cancer-related mortality according to caffeine consumption and its source, adjusting for potential confounders. Results: A dose-dependent inverse association between caffeine and all-cause mortality was observed in women with diabetes. Adjusted HR for death among women who consumed caffeine, as compared with non-consumers, were: 0.57 (95% CI, 0.40-0.82) for <100 mg of caffeine/day, 0.50 (95% CI, 0.32-0.78) for 100 to <200 mg of caffeine/day, and 0.39 (95% CI, 0.23-0.64) for ≥200 mg of caffeine/day (p = 0.005 for trend). This association was not observed in men. There was a significant interaction between sex and caffeine consumption (p = 0.015). No significant association between total caffeine consumption and cardiovascular or cancer mortality was observed. Women who consumed more caffeine from coffee had reduced risk of all-cause mortality (p = 0.004 for trend). Conclusion: Our study showed a dose-dependent protective effect of caffeine consumption on mortality among women with diabetes.