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Spontaneous intracranial hypotension (SIH) is a syndrome that was unknown until the advent of magnetic resonance imaging (MRI). It is a cause of orthostatic headache, which remains underdiagnosed and, rarely, can result in several complications including dural venous sinus thrombosis, subdural hematoma and subarachnoid hemorrhage. Some of these complications are potentially life-threatening and should be recognized promptly, mainly by imaging studies. We reviewed the MRI of nine patients with SIH and describe the complications observed in three of these patients. Two of them had subdural hematoma and one had a dural venous sinus thrombosis detected by computed tomography and MRI. We concluded that MRI findings are of great importance in the diagnosis of SIH and its complications, which often influence the clinical-surgical treatment of the patient. RESUMO Hipotensão Intracraniana Espontânea (HIE) é uma síndrome desconhecida até o advento das imagens de Ressonância Magnética (RM). É uma causa de cefaleia ortostática que permanece subdiagnosticada e raramente resulta em complicações, como trombose de seios venosos durais, hematoma subdural e hemorragia subaracnoidea. Algumas dessas complicações são potencialmente ameaçadoras à vida e devem ser prontamente reconhecidas pelos estudos de imagem. Nós revisamos as RM de 9 pacientes com HIE e descrevemos as complicações observadas em 3 casos. Dois deles tiveram hematoma subdural e um teve trombose de seio venoso dural detectados por tomografia computadorizada e RM. Concluímos que achados de RM são de grande importância no diagnóstico de HIE e suas complicações, frequentemente influenciando o tratamento clínico-cirúrgico do paciente.

INTRODUCTION Changes in sleep quality and quantity occur in adolescence and can lead to the compensatory behavior of daytime napping. OBJECTIVE Analyze factors related to napping in adolescents. METHODS A population-based cross-sectional study was conducted with 1022 adolescents who participated in the 2014-2015 Health Survey of the city of Campinas, state of Sao Paulo, Brazil. Napping was the dependent variable. Sociodemographic characteristics, living habits, health-related behaviors, feelings of loneliness, satisfaction with life and nocturnal sleep habits were the independent variables. Data analysis was performed using Rao-Scott chi-square test, unpaired Student's t-test and Poisson regression analysis; p

OBJECTIVE: To evaluate, in a population-based approach, the association of extreme sleep duration with sociodemographic factors, health, and well-being. METHODS: We analyzed the data from the 2014/2015 Health Survey in the city of Campinas, State of São Paulo, Brazil (ISACamp), performed with 1,969 individuals (≥ 20 years old). Associations between the independent variable and short (≤ 6 hours) and long (≥ 9 hours) sleep were determined using the Rao-Scott chi-square test. The analyses were adjusted with multinomial logistic regression models. RESULTS: Men, individuals aged 40 to 59, those with higher schooling, those who have one (OR = 1.47, 95%CI 1.02–2.12), two (OR = 1.73, 95%CI 1.07–2.80), or three or more (OR = 1.62, 95%CI 1.16–2.28) chronic diseases, and those with three or more health problems (OR = 1.96, 95%CI 1.22–3.17) were more likely to have a short sleep. The chance of long sleep was higher in widowers and lower in those who have more years of schooling, with higher income, worked, lived with more residents at home, and reported three or more diseases (OR = 0.68, 95%CI 0.48–0.97) and health problems. The chance of either short (OR = 2.41, 95%CI 1.51–3.87) or long sleep (OR = 2.07, 95%CI 1.23–3.48) was higher in unhappy individuals. CONCLUSIONS: These findings highlight the higher chance of short sleep duration among men, among persons in productive age, and among those with a higher level of schooling in a Brazilian city. The association of short sleep with comorbidities and the association of happiness with extremes of sleep duration were also important results to understand the relation of sleep duration with health and well-being.

Objective To evaluate the risk factors and comorbid conditions associated with the development of pneumonia in patients with acute stroke. To determine the independent predictors of pneumonia. Method Retrospective study from July to December 2011. We reviewed all medical charts with diagnosis of stroke. Results 159 patients (18-90 years) were admitted. Prevalence of pneumonia was 32%. Pneumonia was more frequent in patients with hemorrhagic stroke (OR: 4.36; 95%CI: 1.9-10.01, p < 0.001), higher National Institute of Health Stroke Scale (NIHSS) (p = 0.047) and, lower Glasgow Coma Score (GCS) (p < 0.0001). Patients with pneumonia had longer hospitalization (p < 0.0001). Multivariable logistic regression analysis identified NIHSS as an independent predictor of pneumonia (95%CI: 1.049-1.246, p = 0.002). Conclusion Pneumonia was associated with severity and type of stroke and length of hospital stay. The severity of the deficit as evaluated by the NIHSS was shown to be the only independent risk factor for pneumonia in acute stroke patients.

SummaryObjectiveTo compare the efficacy of medical and surgical treatment for refractory mesial temporal lobe epilepsy associated with hippocampal sclerosis (MTLE).MethodsA prospective controlled non-randomized study of 26 patients with MTLE who underwent surgical treatment and 75 patients with MTLE who underwent medical treatment between August 2002 and October 2004. All patients failed to achieve seizure control with at least two first line antiepileptic drugs (AED) for partial seizures before entering the study. We used Kaplan–Meier survival analyses as a function of time of seizure recurrence to obtain estimates of 95% confident interval of seizure freedom and log-rank test to compare the status of seizure control between the two groups.ResultsThe cumulative proportion of patients free of all seizures (Engel's class IA) was higher in the surgical group (73%) compared to the clinical group (12%) (p

OBJECTIVE: To investigate the value of leaving seizure-free patients on low-dose medication. METHOD: This was an exploratory prospective randomized study conducted at our University Hospital. We evaluated the frequency of seizure recurrence and its risk factors following complete or partial antiepileptic drug (AED) withdrawal in seizure free patients for at least two years with focal, secondarily generalized and undetermined generalized epilepsies. For this reason, patients were divided into two groups: Group 1 (complete AED withdrawal), and Group 2 (partial AED withdrawal). Partial AED withdrawal was established as a reduction of 50% of the initial dose. Medication was tapered off slowly on both groups. Follow-up period was 24 months. RESULTS: Ninety-four patients were followed up: 45 were assigned to complete (Group 1) AED withdrawal and 49 to partial (Group 2) AED withdrawal. Seizure recurrence frequency after two years follow-up were 34.04% in group 1 and 32.69% in Group 2. Survival analysis showed that the probability of remaining seizure free at 6, 12, 18 and 24 months after randomization did not differ between the two groups (p = 0.8). Group 1: 0.89, 0.80, 0.71 and 0.69; group 2: 0.86, 0.82, 0.75 and 0.71. The analysis of risk factors for seizure recurrence showed that more than 10 seizures prior to seizure control was a significant predictive factor for recurrence after AED withdrawal (hazard ratio = 2.73). CONCLUSION: Leaving seizure free patients on low AED dose did not reduce the risk for seizure recurrence. That is, once the decision of AED withdrawal has been established, it should be complete. OBJETIVO: Investigar o valor da manutenção de baixas doses de medicação em pacientes com epilepsia controlada. MÉTODO: Trata-se de um estudo prospectivo aleatorizado exploratório, realizado em nosso Hospital Universitário. Nós avaliamos a freqüência de recorrência de crises e os fatores de risco associados após a retirada parcial ou completa da droga antiepiléptica (DAE), em pacientes com crises controladas por pelo menos dois anos. Os pacientes foram divididos em dois grupos: Grupo 1 (retirada completa da DAE) e Grupo 2 (retirada parcial da DAE). Retirada parcial da DAE foi estabelecida como uma redução de 50% da dose inicial. A medicação foi retirada lentamente nos dois grupos. O período de seguimento foi de 24 meses. RESULTADOS: Noventa e quatro pacientes foram seguidos: 45 foram selecionados para a retirada completa (Grupo 1) e 49 para a retirada parcial (Grupo 2). As taxas de recorrência de crises após dois anos de seguimento foram 34,04% para o Grupo 1 e 32,69% para o Grupo 2. A análise de sobrevivência mostrou que a probabilidade de permanecer livre de crises aos 6, 12, 18 e 24 meses após a aleatorização não diferiu entre os dois grupos (p = 0,8). Grupo 1: 0,89, 0,80, 0,71 e 0,69; Grupo 2: 0,86, 0,82, 0,75 e 0,71. A análise dos fatores de risco para a recorrência de crises demonstrou que mais que 10 crises antes do controle foi significante para a recorrência após a retirada da DAE (razão de risco = 2,73). CONCLUSÕES: A manutenção de baixas doses de medicação em pacientes com epilepsia controlada não reduz o risco de recorrência de crises. Portanto, caso a decisão de retirar a DAE tenha sido estabelecida, a retirada deve ser completa.