View clinical trials related to Cognitive Impairment.
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Delirium is a syndrome of acute brain dysfunction involving attention and cognition that affects up to half of older hospitalized patients and 50%-75% of critically ill ICU patients, such that millions of patients worldwide experience this acute threat to their health and well being every year. One-third to half of critical illness survivors struggle with a dementia-like disorder similar in severity to moderate-to-severe traumatic brain injury or Alzheimer's Disease, and the only proven risk factor that is potentially modifiable is delirium in the ICU. Despite the frequency and impact of delirium in the ICU, little is known regarding the biological mechanisms that lead to this form of organ dysfunction during critical illness. A widely held hypothesis proposes that inflammation is regulated by the cholinergic system, and that this interaction plays a pivotal role whether delirium developments in the setting of acute illness. Acetylcholinesterase (AChE) and butyrylcholinesterase (BuChE) are enzymes that hydrolyze the neurotransmitter acetylcholine. Changes in the activity of these enzymes, which can be measured in whole blood, reflect altered regulation of circulating acetylcholine. AChE and BuChE activities have promise as both predictors of delirium (when found to be low at admission) and biomarkers of delirium (when low during serial measurement). Neither of these biomarkers, however, have been studied in the ICU setting where delirium risk is the highest. The current investigation, therefore will be the first to determine the validity of circulating AChE and BuChE activities as biomarkers of delirium during critical illness and subsequent cognitive impairment after discharge. This study will measure whole blood AChE and butyrylcholinesterase BuChE activities within the framework of the ICU Delirium and Cognitive Impairment Study Group's ongoing clinical trials in critically ill patients.
Cognitive and functional impairment are debilitating problems for survivors of major surgery. Efforts to modify medical treatments to prevent such impairment are ongoing and may yet yield significant benefits. An area in need of study is whether building patients' cognitive and physical reserve through a prescribed program of cognitive and physical exercise before the physiological insult (a prehabilitation effort) can improve long-term outcomes. Prehabilitation efforts before surgery thus far have focused on preemptive physical therapy to improve post-surgical functional outcomes. No work, however, has been done to attenuate the cognitive decline commonly seen after surgical illness by exercising the brain before the surgical insult. Cognitive prehabilitation is a novel therapeutic approach that applies well-understood techniques derived from brain plasticity research. Our approach is bolstered by data that demonstrate that cognitive training programs are effective and have a very high likelihood of fostering improvement in patient outcomes across a range of populations. It is not yet known if these programs can improve cognitive reserve, allowing patients' minds to better manage the acute stress of surgery and hospitalization. The primary aim of this pilot study is to evaluate the feasibility of cognitive and physical prehabilitation training in adult patients undergoing major non-cardiac surgery who are at risk for postoperative cognitive and functional decline. The secondary aim is to study the effects of cognitive and physical prehabilitation training on cognitive abilities, functional status, and quality of life after surgery.
This is a double blinded, randomized control trial with a pretest-posttest control and interventional groups design. Both the assessor and participants are blinded to all assessments and evaluations. All patients with subacute stroke undergo in-patient or out-patient rehabilitation are screened initially by a series of screening test. Suitable patients are assigned randomly to 3 groups respectively. Group 1 is the combined transcranial direct current stimulation (tDCS) and neurofeedback group. Group 2 is the neurofeedback group. Group 3 is the control group with sham neurofeedback training.
A considerable number of patients with mild and moderate traumatic brain injury (TBI) experience long-lasting somatic, cognitive, and emotional symptoms that may hamper their capacity to return to work (RTW). Although several studies have described medical, psychological and work-related factors that predict RTW after TBI, well-controlled intervention studies regarding RTW in this group are scarce. Furthermore, there have traditionally been weak collaborations among rehabilitation services in the health sector, the Labor and Welfare Administration (NAV), and the work-places. The current project proposal describes an innovative randomized controlled trial (RCT) which will explore the effect of combined manualized cognitive rehabilitation efforts and supported employment in real-life competitive work settings for patients who have not returned to work 8 weeks post-injury. The project combines the rehabilitation and vocational science perspectives; it involves multidisciplinary collaboration, and explores the efficacy of increased cross-sectorial collaboration between specialized health care services and the welfare system. If the intervention proves efficient, the project will further describe the cost-effectiveness and utility of the program, and thereby provide important information of use for policy makers. In addition, the study aims at generating knowledge on the RTW-process both for the persons with TBI, and their workplaces, and to disseminate this knowledge in order to create new multidisciplinary and collaborative practices. The project has potential to generate knowledge of relevance for other patients with neurological deficit.
General cognitive impairment is highly prevalent in chronic obstructive pulmonary disease (COPD) patients. Domain-specific cognitive impairments include deficits in domains such as cognitive flexibility, verbal memory, working memory, planning, and psychomotor speed; which in general are associated with poor health behaviours, such as infrequent exercising and poor diet. Additional cognitive training may reverse these effects. Recent evidence suggests that working memory training is linked to self-control and, indirectly, to improved lifestyle behaviour including increased physical activity. The investigators hypothesise that enhancing cognitive performance through administering specific working memory training not only improves cognitive function but that it facilitates better adherence to a more active lifestyle and a healthier diet in COPD patients.
Approximately 50% of people living with HIV (and as many as 80% over the age of 50) have difficulties with cognitive functions such as memory and thinking that can have a profound negative impact on activities of daily living and quality of life. Problems with memory and thinking are also associated with forgetting to take anti-retroviral drugs and experiencing challenges to balance, walking and mental health (anxiety and depression). There is increasing evidence that, in the general population, exercise has positive effects on cognition, physical functioning and mental health. Despite the recognition of multiple therapeutic benefits of exercise, little attention has been paid to its possible effects on cognition in people living with HIV. The purpose of the proposed pilot study is to compare the effects of a 12-week, randomly assigned, community-based yoga-mindfulness intervention on cognition, balance, walking, mental health and quality of life in 30 people >35 years of age living with HIV in the Halifax area. Yoga is of particular interest because it encompasses not only the physical but also spiritual, emotional, and mental dimensions of life. As such, it has tremendous potential to help stave off some of the devastating consequences of HIV infection.
Objectives: 1-year multidomain health promotion on prevention of physical and cognitive decline for community-living older people. Design: Methods: Randomized controlled trial Setting: Five cities(Taipei, Taichung, Kaohsiung, Kinmen, I-Lan) in Taiwan Participants: age 65 or older community-dwelling prefrail or frail adults Intervention: 1-year multidomain health promotion (physical, cognitive, nutritional intervention) Measurements: Primary outcome includes frailty status and cognitive performance. Secondary outcomes include depressive symptoms, nutrition assessment, and functional capacity; All the variables were measured at 0, 6, 12 months. The effect of intervention was investigated by intention-to-treat analysis.
This study aims to investigate the cognitive function of patients in the opioid reduction programme at the multidisciplinary pain centre at Zealand University Hospital Køge. The patients will be tested before, halfway through, and after the programme.
The parent trial (COcoa Supplement and Multivitamin Outcomes Study, COSMOS; NCT02422745) is a randomized clinical trial of cocoa extract supplement (containing a total of 500 mg/d flavanols, including 80 mg. (-)-epicatechins), and a standard multivitamin supplement to reduce the risk of cardiovascular disease and cancer among men aged 60 years and older and women aged 65 years and older. A cognitive ancillary study (COSMOS-Mind) is being conducted among men and women, 65 years and older, who are enrolled in COSMOS and will examine whether the cocoa extract supplement or the multivitamin supplement improves cognitive function and reduces risk of cognitive impairment, including Alzheimer's disease (AD) and other related types of dementia. Participants at the Wake Forest site will only be getting a phone call.