نتایج جستجو برای: vegetative state
تعداد نتایج: 869270 فیلتر نتایج به سال:
Brain damage can sometimes render a patient persistently unresponsive and yet apparently awake, admitting the possibility that the absence of overt voluntary behaviour might conceal a retained capacity for covert cognition. When given instructions to perform a cognitive task, a minority of patients in such a so-called persistent vegetative state (PVS) has recently been found to exhibit patterns...
Cyclotron Research Center, Department of Neurology, Anesthesiology and Intensive Care Medicine and Internal Medicine, CHU Sart Tilman, University of Liège, Liège; Department of Neurology, AZ-VUB, Brussels; PET/Biomedical Cyclotron Unit and Department of Intensive Care and Neurology, ULB Erasme, Brussels, Belgium LIFE-SUSTAINING TREATMENTS AND VEGETATIVE STATE: Scientific advances and ethical di...
H(2)(15)O-PET was used to investigate changes in regional cerebral blood flow in response to auditory stimulation in patients in the vegetative state. Five patients in a vegetative state of hypoxic origin were compared with 18 age-matched controls. In addition, the cerebral metabolism of these patients and 53 age-matched controls was studied using [(18)F]fluorodeoxyglucose. In control subjects,...
The assessment of residual brain function in the vegetative state, is extremely difficult and depends frequently on subjective interpretations of observed spontaneous and volitional behaviors. For those patients who retain peripheral motor function, rigorous behavioral assessment supported by structural imaging and electrophysiology is usually sufficient to establish a patient's level of wakefu...
In The Lancet, Damian Cruse and colleagues' study 1 examines 16 patients in the vegetative state. This disorder is defi ned as wakefulness without conscious awareness of self and environment. The investigators showed that three (19%) of the 16 patients could generate EEG responses to two commands involving motor imagery, although the patients were otherwise behaviourally unresponsive. But how c...
Positron emission tomography (PET) techniques represent a useful tool to better understand the residual brain function in vegetative state patients. It has been shown that overall cerebral metabolic rates for glucose are massively reduced in this condition. However, the recovery of consciousness from vegetative state is not always associated with substantial changes in global metabolism. This f...
The vegetative state (VS), a state of wakefulness without awareness, has been well recognized in children despite the fact that little descriptive information has been published [3,14,21,38]. This review will focus on our current understanding of VS from a pediatric and medical perspective. Information concerning etiology, epidemiology, clinical course, and most importantly, potential for recov...
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