View clinical trials related to Cognition Disorders.
Filter by:This is a multi-center, open-label study of 28 weeks duration in subjects with Mild Cognitive Impairment who have completed the double-blind study (E2020-A001-412).
It is previously reported that the cerebral oxygen desaturation during cardiac surgery is associated with an increased incidence of cognitive impairment. The aim of this study is to determine whether intraoperative monitoring and predetermined interventions protocol to improve cerebral oxygenation during coronary artery bypass surgery provides benefits in neurocognitive functions.
This study is collecting tissue specimens (blood, urine and saliva) from up to 1000 patients, with and without cognitive disorders, to store in the Bio Bank for future research. The specimens could be used in future research projects that could help improve the accuracy of diagnosis of a disease, predict who might develop a disease, help monitor the disease, or improve the understanding of the disease. Patients are only being recruited from Beaumont Hospitals Geriatric Clinic.
Patients with the APOE-ε4 genotype are at increased risk of both vascular dementia and peripheral vascular disease. Patients undergoing major vascular surgery are at particularly high risk of delirium and other, more subtle, changes in cognitive function following surgery. The hypothesis of this trial is that the APOE-ε4 genotype is associated with both delirium and postoperative cognitive dysfunction (POCD).
This is a three year fMRI study conducted at the University of Wisconsin (UW) Hospital and the William. S. Middleton VA Hospital. This study is guided by the hypothesis that reduced fMRI activity and connectivity cortical midline structures (i.e., medial frontal and ventral posterior cingulate cortex) are physiologic abnormalities that relate strongly to the compromised insight into cognitive deficits, or anosognosia, shown by a subset of individuals with amnestic MCI (aMCI) and AD. Further, the investigators hypothesize that these regional changes in fMRI activity are predictive of faster progression from aMCI to AD.
An increasing number of Veterans are anticipated to develop chronic kidney disease (CKD) and require hemodialysis (HD) treatments as the Veteran population ages. In 2003, approximately 290,000 US citizens were receiving HD and an estimated 19 million were affected by CKD. The annual growth rate is predicted to be 7% per year with 500,000 Americans receiving HD treatment by 2010. In 2005, approximately 2500 Veterans were receiving HD with growth expected to parallel that seen in the general population. Whereas Alzheimer's disease is the leading cause of dementia in the general population, growing evidence suggests that patients with advanced CKD experience cognitive deficits related to accelerated cerebrovascular disease. Patients with advanced CKD have been shown to have a high prevalence of sub-clinical cerebrovascular damage on imaging studies and a heavy burden of vascular risk factors such as diabetes, elevated cholesterol, and hypertension. Many of the cognitive deficits related to cerebrovascular disease may go unrecognized by routine measures of cognition. HD patients have increased number of hospitalizations, and several compliance issues ranging from congestive heart failure to dangerous electrolyte imbalances. Impaired cognition in this population is likely to have a significant impact on self-care and compliance with complex medical regimens. Currently, the severity and scope of cognitive impairment related to vascular disease is not well known in patients with advanced kidney disease. Additionally, the relationship between cognitive impairment and measures of self-care independence are not well known. Loss of independence and function secondary to impaired cognitive function is likely to be a significant problem for patients with advanced kidney disease. Early identification of functional impairment, particularly instrumental activities of daily living (IADL), will allow for rehabilitation intervention. Maintaining or improving functional independence through intensive rehabilitation could translate into better compliance and lower hospitalization rate among HD patients. Information obtained from this study is likely to heighten awareness of cognitive impairment and the functional consequences in Veterans with advanced kidney disease. Primary objectives are to determine: 1. The range of cognitive deficits with emphasis on domains affected by vascular disease in patients with advanced CKD and those receiving hemodialysis. 2. The associations between severity of cognitive impairment and severity of kidney disease. 3. The prevalence of impaired IADLs and the level of health-related quality of life (HRQOL) in patients with advanced CKD and those requiring hemodialysis. 4. The relationship or association of cognitive impairment with IADL and HRQOL. Secondary objective is to determine: 1. The relationships among cerebral and carotid blood flow, carotid artery stiffness, and renal specific metabolic abnormalities with cognitive impairment.
Introduction: High blood pressure especially systolic hypertension is a common condition in the elderly and is considered as a major determinant not only of cardiovascular (CV) morbidity and mortality, but also of several other age-related diseases, frailty and loss of autonomy. Actually, the association between BP levels and morbidity and mortality in the very elderly persons with several co-morbidities remains a controversial issue Objectives: The aim of the PARTAGE study (Predictive values of blood pressure and arterial stiffness in institutionalized very aged population)is to determine the predictive value of blood pressure (BP) and arterial stiffness for overall mortality, major cardiovascular events and cognitive decline in a large population of institutionalized subjects aged 80 and over. Methods: The population is composed of 1130 subjects aged over 80, living in nursing home, included by four french university hospitals centre (Nancy, Dijon, Paris, Toulouse) and two Italian (Cesena, Verona). Subjects with severe dementia and a very low level of autonomy are excluded from the study During the first visit, blood pressure were measured using an automatic monitor by physician in sitting and standing position (clinical BP and Orthostatic BP) and by a self measurement of blood pressure 3 measurements, in the morning and the evening, during 3 consecutive days). Arterial stiffness is evaluated by measuring the carotid-femoral and carotid-radial pulse wave velocity (PWV) with the PulsePen® automatic device. Deaths and cardiovascular events are recorded during a follow-up of 2 years. The hypothesis of the PARTAGE longitudinal study is that in very elderly frail individuals with multiple co-morbidities, CV risk could be better evaluated by combining self-measurements of BP and direct evaluation of arterial stiffness which are less influenced by the above mentioned disease and co-morbidities.
The overall goal of this project is to determine the feasibility of conducting a cognitive intervention for children with sickle cell disease.
The Diskus Inhaler is administered by a nurse or medical technician in the Nursing Home (NH) setting. The administration of the medication from the Diskus Inhaler includes 4 steps: open, click, inhale, close. The only step that the resident must do is the "inhale" step, which includes holding one's breath for 10 seconds after the inhalation. The investigators propose that properly trained and motivated nurses and medical technicians can successfully administer medication using the Advair Diskus to almost any mildly to moderately cognitively impaired resident who can follow the instruction- "inhale" and hold your breath for 10 seconds". The objective is to show that mild to moderate cognitive impairment should not be a barrier to the use of Diskus Inhaler. There will only be 1 consent visit and 1 evaluation visit per subject.
Alzheimer's disease often manifests as a memory disorder before dementia develops. Dementia is considered to be present when a person can no longer handle complex activities of daily living, such as managing finances. This study will investigate the relationship between changes in the ability to manage finances and brain perfusion, which will be measured using continuous arterial spin-labeling (an experimental MRI). Subjects will also undergo neuropsychological tests focusing on several types of memory and thought process, with special emphasis on semantic memory. An important question to be addressed is whether changes in function are better predicted by the neuropsychological tests or by the brain scan.