View clinical trials related to Cognitive Dysfunction.
Filter by:The objective of this study is to characterize the prevalence of clinical or subclinical polyvascular lesions and 4-year progression rate of plaque in intracranial and carotidal arteries in a Chinese community population using vascular imaging techniques; to investigate the both traditional and emerging genetic, metabolomic, and environmental risk factors of presence and progression of intracranial and carotidal plaque; and to investigate the association between polyvascular lesions and future risk of cognitive impairment, cardio-/cerebrovascular events and death.
Explanation of the study: As the older adult population continues to rise, so will normal cognitive aging. This increase raises concern for maintaining cognitive function and possibly delaying the onset of disorders such as dementia. Cognitive training (CT) is one potential solution which may be done using computer programs, pencil-and-paper problem solving activities, or everyday tasks. Traditional, skilled occupational therapy (OT) is not reimbursed for this type of preventative or maintenance services. CT may be a fundable answer for older adults to maintain or even improve cognitive function. The purpose is to determine if computerized CT, utilizing a specific program (RehaCom), improves executive functioning in the older adult with mild cognitive impairment, as compared to pencil-and-paper CT. How study is performed: Participants who meet the inclusion criteria will complete a 9-question demographic survey and pre-test standardized cognitive tests. The experimental group will complete RehaCom computer training and the control group will complete paper-and-pencil based training. All trainings will take place at Mercy LIFE and will be conducted by trained OT students. Subjects will complete a total of 480 minutes of training over a 12-week period, within 30 to 60 minutes sessions. After the 480 minutes of training, subjects will complete the cognitive post-tests. How data is collected, de-identified and analyzed: Participants who enroll will be assigned a code number linked to their first and last name. This coding will de-identify participants before analyzing or reporting. All signed forms, data collected, and data identified will be kept in a locked cabinet in the researcher's office. All stored files will be shredded one year after the study. Interventions/tests/medications: Computerized CT: RehaCom is a computer program that was designed to assist cognitive rehabilitation. The program targets attention, concentration, memory, perception, and problem-solving, with trainings lasting for a total of 480 minutes over 12 weeks. Pencil-and-paper CT: Various pencil-and-paper exercises to improve attention, concentration, memory, language, and orientation will be used. Such exercises may include word puzzles, calculation or number puzzles, and map reading, for a total of 480 minutes of training over 12 weeks. Potential risks: Risks of feeling segregated are minimal, as all members have been offered the opportunity to use the site's computer room. Risks may include cognitive fatigue (in both groups) or overstimulation during computer use. Breaks will be given at any sign of these symptoms. There is a small possibility that the participant may become too overwhelmed or stressed with the cognitive training. Upon notice of these symptoms, activities will cease immediately. Potential and expected benefits: Participants may gain a greater insight into cognitive abilities and improvement of executive functioning skills. Increased knowledge on effects of using cognitive software in a community-based setting may also occur. Mercy LIFE will receive the benefit of continued use of the RehaCom software and laptop as the equipment will be left at the site. Additionally, these findings may help other community-based sites incorporate specific cognitive training for other older adults.
This randomised controlled trial aims to determine the effectiveness of combined physical and cognitive training in preventing falls and decreasing risks of falls among community-dwelling older persons with mild cognitive impairment (MCI).
The project focuses on investigating problematic medication use, especially overuse of potentially addictive drugs among the elderly. The investigators aim firstly to develop and validate instruments for detecting and describing behavioral aspects and consequences of dependence on, and misuse of, prescription medication among elderly. In addition to evaluating diagnostic utility of screening instruments, the investigators aim to identify and report characteristics, risk factors and consequences of medication misuse and dependence among the elderly.
Patients assume that cognitive performance rapidly returns to baseline after anesthesia and surgery. Several studies have shown that one week after major non-cardiac surgery about 27% of patients have postoperative cognitive dysfunction (POCD) and 10% of patients at 3 months. Very few studies have assessed the incidence of POCD beyond 3 months. POCD significantly reduces quality of life. Identifying risk factors for POCD is important because it is associated with prolonged hospital stay, loss of independence, and premature retirement. There is an urgent need to measure and document the level of cognitive change associated with surgery with an easy to use tool, both prior to admission and after discharge. This information can be used to plan appropriate care paths and to identify or test the efficacy of potential new treatments to alter the negative trajectory.
The purpose of this project is to determine whether obstructive sleep apnea (OSA) treatment with positive airway pressure therapy (CPAP) can delay the progression of cognitive impairment in patients with amnestic Mild Cognitive Impairment (MCI) as measured by cognitive testing, and brain magnetic resonance imaging (MRI) scans. Study participants will be assessed at baseline, six-month (cognitive tests only) and one-year follow-up.
Cognitive skills are essential to live independently, manage finances, maintain employment, and function in society. Loss of these cognitive skills puts a tremendous burden on society as seen with dementias, Alzheimer's disease, and traumatic brain injury. The INSIGHT-ICU Study (Illuminating Neuropsychological dysfunction and Systemic Inflammatory mechanisms Gleaned after Hospitalization in Trauma-ICU Study) is the first comprehensive and longitudinal long-term cognitive impairment study after traumatic injury. The societal impact of long-term cognitive impairment after trauma is immense given that these patients are young and constitute a large proportion of employable adults.
The main goal of this study is to allow the anesthesiologist to make a more informed decision about the anesthetic requirement of a person prior to starting anesthesia. The preliminary data collected in this study will support a larger investigation aimed at gaining a better understanding of anesthetic susceptibility in general and in the elderly population which appears to be at greater risk for Postoperative Cognitive Dysfunction (POCD) POCD is a short-term decline in cognitive function (especially in memory and executive functions) that may last from a few days to a few weeks after surgery. In rare cases, this disorder may persist for several months after major surgery. POCD is distinct from emergence delirium. It occurs most commonly in older patients and those with pre-existing cognitive impairment. POCD is common in adult patients of all ages at hospital discharge after major non-cardiac surgery, but only the elderly (aged 60 years or older) are at significant risk for long-term cognitive problems. The body's inflammatory response to surgery likely plays an important role, at least in elderly patients. Investigators also postulate that a relative 'anesthetic overdose' may be a significant risk factor. Hence, being able to make a better judgment on the dose needed for an individual is extremely important.
This study is intended to clarify the benefits to brain health and thinking processes that result from different forms of exercise. In particular, this study will investigate the possible benefits of physical exercise (such as pedaling an under-table stationary elliptical) or mental exercise (such as playing a videogame on a portable tablet), or combining these activities together (as in the iPACES™ exergame).
The present collaborative R01 study, between Cornell and Johns Hopkins, aims to compare Problem Adaptation Therapy for Mild Cognitively Impaired Older Adults (PATH-MCI) vs. Supportive Therapy for Cognitively Impaired Older Adults (ST-CI) in improving cognitive, affective, and functioning outcomes.