Active clinical trials for "Amnesia"

The study will provide information on cognitive impairment and Health related quality of life in patients surviving 12 months after acute brain injury, generate a hypothesis of useful variables to predict cognitive impairment or low levels of HRQoL, and potentially inform interventions for the prevention and treatment of cognitive impairment following neuro-ICU stay.

This study will be an observational study in which patients who have been prescribed CerefolinNAC® are invited to participate in surveys regarding their experiences with CerefolinNAC®. CerefolinNAC® is a medical food indicated for the distinct nutritional requirements of individuals under treatment for early memory loss with particular emphasis for those individuals diagnosed with or at risk for neurovascular oxidative stress and/or hyperhomocysteinemia; mild to moderate cognitive impairment with or without vitamin B12 deficiency, vascular dementia or Alzheimer's disease. The purpose of this study is to increase the understanding of the role of CerefolinNAC® in managing proper neuronal function in the brain, provide patients with personalized education and support, and contribute to the overall understanding of the needs and concerns of patients being treated for early memory loss.

Neuropsychological studies investigating trauma-exposed and posttraumatic stress disorder (PTSD) subjects have generally underlined the significantly poorer performance of tasks that require attention, concentration, and verbal memory, and difficulty in regulating memories surrounding the traumatic event. A previous study (El Hage et al. Cognitive Neuropsychiatry, 2006) revealed that the trauma-exposed subjects scored higher on anxiety/depression scales, and lower on processing speed tests. Moreover, the study showed significant impairment in working memory partially mediated by speed processing, but not by anxiety or depression. These results suggest that processing speed makes a major contribution to trauma-related working memory decline, and needs to be investigated in further studies.The aim of the present study is to explore correlation between hippocampus volume, frontal dysfunction and cognitive slowing in trauma-exposed subjects, while examining brain activation during performance of working memory tasks using functional magnetic resonance.

This study is divided into two parts. The first part of the study will use MRI technology to view the brain structure of patients with neurological disorders and normal volunteers. This portion of the study will attempt to detect specific areas of damage in the brains of patients with amnesia and dementia. It will also try to correlate the amount of brain damage with performance on tests used to measure memory. In the second part of the study, researchers plan to use MRI technology to study brain function of patients with neurological disorders and normal volunteers when they perform tasks. MRI signals during task performance will be used to record areas of the brain receiving more blood flow indicating increased activity. Researchers believe this study will help improve existing methods of evaluating patients with neurological disorders. In addition, this study may contribute information about areas of the brain involved in thought processing and motor and sensory function.

Reversible cerebral vasoconstriction syndrome (RCVS) is characterized by severe, unusual headaches associated with multifocal segmental vasoconstriction of the intracerebral arteries. In addition to headache, focal neurological deficit and/or seizures are quite frequently described, but anterograde amnesia seems to but extremely rare. Indeed, to date, only one case of RCVS associated with transient global amnesia (TGA) has been published. In case of an atypical presentation of TG, associated with brutal headaches, it is important not to ignore an assocation with RCVS because management, treatment, evolution and prognosis are different. Indeed, TGA is a monophasic phenomenon of less than 24 hours duration, without associated complications, which does not require any particular treatment. On the other hand, RCVS, although most often of excellent prognosis, can have severe complications such as intracerebral hemorrhage, subarachnoid hemorrhage, posterior reversible encephalopathy syndrome and cerebral infarction. In order to limit headaches and potential complications, RCVS require special management, including symptomatic treatments for headaches, complete rest, removal of precipitin factors and introduction of calcium channel blockers for a few weeks. This study aim to described three cases of patient who presented with concomitant TGA and RCVS, and to discuss pathogenic mechanism which may be similar in both these pathologies.

To clarify whether amnesia after treatment of anterior communicating aneurysm (ACoA)is related to infarcts caused by occlusion or damage of the perforating artery of the ACoA, we used 3.0-T 3D high resolution MR imaging to identify and localize infarcts in patients with amnesia following treatment of ACoA aneurysm.

The general purpose of this observational study is to examine biomarkers associated with the pathology of neurodegenerative diseases to potentially develop novel therapeutic approaches.