Marieke Christine Visser

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BACKGROUND In patients with acute ischemic stroke caused by a proximal intracranial arterial occlusion, intraarterial treatment is highly effective for emergency revascularization. However, proof of a beneficial effect on functional outcome is lacking. METHODS We randomly assigned eligible patients to either intraarterial treatment plus usual care or(More)
OBJECTIVE In the Leukoaraiosis and Disability (LADIS) Study, 11 European centers are evaluating the role of age-related white matter changes (ARWMC) as an independent determinant of the transition to disability in the elderly (65 to 84 years). We aimed at determining the influence of ARWMC on different objective measures of gait and balance. METHODS Six(More)
This study investigates the bottlenecks in the emergency care chain of cardiac in-patient flow. The primary goal is to determine the optimal bed allocation over the care chain given a maximum number of refused admissions. Another objective is to provide deeper insight in the relation between natural variation in arrivals and length of stay and occupancy(More)
OBJECTIVE To assess the impairment in daily living activities in older people with age related changes in white matter according to the severity of these changes. DESIGN Observational data collection and follow-up of a cohort of older people undergoing brain magnetic resonance imaging after non-disabling complaints. SETTING 11 European centres. (More)
BACKGROUND Age-related white matter changes (ARWMCs), frequently detected on neuroimaging, are associated with motor, cognitive, urinary, and mood disorders. The LADIS (LeukoAraiosis and DISability) Study primarily aims to assess ARWMCs as a determinant of global functional decline in the elderly population. METHODS We enrolled 639 patients (mean age,(More)
OBJECTIVE We aimed to study if age-related white matter changes (WMC) and vascular risk factors were predictors of cognitive decline in elderly subjects with WMC living independently. METHODS The Leukoaraiosis and Disability prospective multinational European study (LADIS) evaluates the impact of WMC on the transition of independent elderly subjects into(More)
BACKGROUND Global age related white matter changes (ARWMC) are associated with progressive gait disturbances and falls, hypothesised to result from interruptions of cortico-subcortical circuits controlling balance, posture and locomotion. METHODS The location of ARWMC in a large cohort of elderly non-disabled individuals with reported falls was analysed,(More)
OBJECTIVE To examine the effectiveness of post-diagnosis dementia treatment and coordination of care by memory clinics compared with general practitioners. DESIGN Multicentre randomised controlled trial. SETTING Nine memory clinics and 159 general practitioners in the Netherlands. PARTICIPANTS 175 patients with a new diagnosis of mild to moderate(More)
BACKGROUND Age-related white matter changes (ARWMC), seen on neuroimaging with high frequency in older people, are thought to be consequent to the effect of vascular risk factors and vascular diseases including hypertension and stroke. Among the proofs conventionally required for a factor to be considered a risk factor for a definite pathology, there is the(More)