View clinical trials related to Cognitive Impairment.
Filter by:This pilot study aims to assess if participants that meet the criteria for a TES diagnosis have a specific tau deposition profile on PET scanning using the PET tau binding ligand - [18F] PI-2620. It is hoped this study will highlight potential diagnostic tests of TES diagnosis, the in-life correlate of CTE.
This is a pragmatic, multi-center, prospective, observational, non-interventional study and standing database of patients seen at the training institution for cognitive impairment diagnosed with Mild Cognitive Impairment (MCI) or Dementia. All patients seen at the training institution clinically diagnosed with MCI or dementia by their neurologists will be invited to participate in the study. The investigators will confirm the diagnosis and will explain the study as well as the patient information sheet to the patient and/or legal representative. All eligible patients seen will be assigned a study identification number. Data will be collected by the investigators as the patient undergoes routine clinical evaluation. Corresponding anonymized data on demographics, medical history and risk factors, level of functional impairment, diagnosis, baseline cognitive scores and management will be collected from each patient and entered in the database using a secure online data collection tool.
Rationale: Cardiovascular disease and cognitive diseases are closely related. Cognitive impairment is common (21-39%) among patients with severe aortic valve stenosis. The proof-of-concept CP-TAVI study showed that increased cardiac output following transcatheter aortic valve implantation (TAVI) was associated with increased cerebral blood flow. It is hypothesized that increased cerebral blood flow (CBF) subsequently leads to improved cognitive functioning. Additionally, silent micro emboli caused by crushing of the calcified native valve during TAVI may cause cognitive deterioration. If it could be predicted which patients are at risk for TAVI induced cerebral micro emboli, these patients could benefit from cerebral protection devices, preventing cognitive decline. Objective: The objectives of the CAPITA study are 1A) to identify whether an increase in cardiac output after TAVI is associated with an increase of global CBF; 1B) explore regional differences in CBF after TAVI; 1C) determine whether (global or regional) increased CBF is associated with improved cognitive functioning; 1D) identify patient and procedural characteristics associated with increased cardiac output, CBF and cognitive functioning; 2A) identify the incidence and volume of new white matter hyperintensities after TAVI; 2B) evaluate patient and procedural predictors for the increase in white matter hyperintensities volume, including baseline aortic valve calcification volume, measured with computed tomography; 2C) if aortic valve calcification volume predicts new white matter hyperintensities, define a cut-off value for high-risk patients; 2D) assess whether the increase in white matter hyperintensity volume is associated with deterioration of cognitive scores. Study design: Prospective observational study, measuring cardiac output (echocardiography), cerebral blood flow (arterial spin labelling magnetic resonance imaging) and cognitive functioning (neuropsychological test battery) prior to TAVI (<24 hours to <one week) and at 3 months follow-up. At one year follow-up, cardiac output and cognitive function will be assessed. Study population: Patients with severe aortic valve stenosis eligible for transfemoral TAVI (n=142). Main study parameters/endpoints: Cardiac output (L/min), cerebral blood flow (mL/100g/min, change in %, relative to baseline) and cognitive functioning (extensive neuropsychological testing 60-90 minutes).
Neuromuscular dysfunction is common in older adults and even more pronounced in neurodegenerative diseases. In Parkinson's disease (PD), a complex set of factors often prevents effective performance of activities of daily living that require intact and simultaneous performance of motor and cognitive tasks. In the current study we aim at employing the Mobile Brain/Body Imaging approach (MoBI) to gain further insides of neuromuscular biomarkers revealing the decrements of older adults with an early PD. The cross-sectional study will be evaluated through the multifactorial mixed-measure design.
The study targets postoperative delirium in patients undergoing major abdominal surgery, with the aim to evaluate the functional baseline and proteomics implicated in pathogenesis, prevention strategies (such as anesthesia depth monitoring) and incidence in certain population groups.
This randomized controlled trial (RCT) is used to address the knowledge translation of primary care practitioners (PCPs) for the early identification of cognitive impairment. Cognitive impairment is experienced by people with many different underlying health problems, e.g., diabetes, cardiovascular problems, COVID-19, neurodegenerative diseases, and mental health problems. Older adults are more likely to have cognitive decline which may develop into Alzheimer's disease or dementia but 40% of dementia can be prevented by managing the risks. Cognitive impairment can demand vast societal resources, the burden is reported to be more among Hispanics and blacks. By 2029, all baby boomers will be over 65, comprising at least 20% of the U.S. population. So, it is critical for PCPs to effectively identify, prevent, and manage the hidden signs of cognitive impairment. People with early signs of cognitive impairment will have opportunities to benefit from suitable cognitive remediation to reverse it or prevent rapid progression. It is critically important for people who are socioeconomically disadvantaged, those who are black, indigenous, and people of color (BIPoC). These people are often served by safety-net hospitals, such as clinics of the Los Angeles County (LAC) Department of Health Services and the federally qualified health centers at the Community Clinics Association of LAC. Many PCPs in these clinics are often BIPoC. The intervention used in this RCT is called "Cognition ECHO" based on the proven model of ECHO (Extension of Healthcare Outcomes) for knowledge dissemination and translation. Cognition ECHO is a virtual activity incorporating a short didactic presentation and de-identified case discussion to solve real-world patient care challenges and ease direct knowledge translation. PCPs in the LAC will be randomized into Groups 1 and 2. Group 1 will attend the five Cognition ECHO for four months, Group 2 will be the control. Group 2 will attend Cognition ECHO starting on July 25, 2023, five times till November 7, 2023, when Group 1 is the follow-up. Most sessions are scheduled on the fourth Tuesday of the month with the addition of June 6 and November 7, 2023. Focusing on cognitive impairment and targeting PCPs at the LAC, the goal of this study is to evaluate if Cognition ECHO can improve PCPs' capacity to detect early cognitive impairment and manage it. It will result in opportunities to mitigate the risk factors of early cognitive impairment, especially for minority patients in LAC, and conduct efficacy studies in the future to address cognitive impairment focusing on BIPoC.
More than 60% of intensive care unit (ICU) patients are adults ages 60 and older, who are at high risk for ICU-acquired cognitive impairment. After ICU discharge, ICU survivors often experience sleep disturbances and inactivity, and almost 80% of ICU patients experience disturbances in circadian rhythm, which may affect cognitive function. Understanding the optimal, chronotherapeutic timing of cognitive interventions is crucial to promote circadian realignment and cognitive function, and may improve intervention feasibility, acceptability, and efficacy. Specific Aim 1 will determine feasibility, acceptability, and preliminary effect sizes for: 1) a morning session of a computerized cognitive training intervention [COG]; and 2) a late afternoon/early evening session of the COG intervention; compared to 3) standard inpatient care/usual care [UC]. Specific Aim 2 will examine circadian rhythm parameters to determine the optimal timing of the daily COG intervention. Exploratory Aim 3 will explore if the effects of the COG intervention on cognitive function are mediated by daytime activity, and explore if selected biological and clinical factors moderate intervention effects on cognitive function.
Loss of cognitive function after major surgery is a significant risk in older people. It can occur acutely in the days after surgery as delirium or in months to years later as a persistent reduction in brain function termed neurocognitive decline. Together these conditions are called post operative cognitive dysfunction (POCD). They can be acutely distressing for patients and are associated with other problems after surgery. The causes of post operative cognitive dysfunction are poorly understood. Studies have been limited by a lack of biomarkers to predict which patients are at high risk of developing POCD. Research suggests silent strokes occurring during surgery and different sensitivities to anaesthetic medicines are associated with POCD. The project consists of a feasibility study to investigate markers that might predict people over 65 years old getting POCD. The first biomarker is a non-invasive monitor of anaesthetics effects on brain function called electroencephalography (EEG): The investigators will identify which EEG patterns predict delirium within five days surgery. The second set of biomarkers are two blood tests of proteins that increase after strokes: these are neurofilament light chains and tau proteins. The investigators will establish if these can be used to predict having POCD up to one year after surgery and long term cognitive impairment up to 5 years after surgery.
Researchers at the University of North Carolina at Greensboro conduct a single-arm intervention trial to investigate the efficacy of a music-based group exercise program for community-dwelling older adults. Up to forty participants will be recruited to participate in a music-based light-to-moderate intensity group exercise program for 20 weeks (30 - 40 min/day, up to 6 days/week), which is designed for older adults with or without functional limitations to exercise with chairs for the improvement of aerobic capacity, upper and lower body strength, and balance control at a gradually increasing pace. During the exercise sessions, participants will be trained to move in time with music playlists in synchronous tempos. Primary outcomes are cognitive performance, mobility, and health-related quality of life measured before and after the intervention. Secondary outcomes are adherence to the exercise program as a potential mediator of the treatment.
The investigators will examine mental/cognitive as well as cognitive functions (executive functions, attention functions, processing speed, learning and memory) in 200 patients with chronic pain and 36 healthy controls. Mental fatigue will be measured with questionnaires and cognitive fatigue and cognitive functions with neuropsychological tests. As studies on patients with mild traumatic brain injury has shown that fatigue is associated with altered communication (connectivity) in the brain's attention-related networks, brain connectivity will be measure in 24 patients (women only) and 22 healthy female controls using functional magnetic resonance imaging (fMRI) technology. During the fMRI examination, participants will also perform a 20-minute vigilance task in a scanner. Studies have also shown that inflammatory biomarkers may be related to chronic pain, but inflammatory biomarkers has not been studied in relation to objective measures regarding cognition, fatigue and connectivity changes. Therefore, the patients and controls performing fMRI will also be examined with immunological biomarkers. In addition to this, a further 14 patients and 14 controls carrying out the neuropsychological testing alone will also be examined for immunological biomarkers. The main objectives are: 1. Do patients with chronic pain show more pronounced self-rated mental fatigue and cognitive fatigue compared to healthy controls and are fatigue measures related to cognitive functions such as process speed and attention functions? 2. What is the relationship between cognitive impairments, mental fatigue, or fatigability and 1. the duration of pain 2. generalization of pain and are they affected by covariates, such as sleep disorders and degree of depression/anxiety? 3. Is there an association between immunological biomarkers and cognitive functions/mental fatigue/cognitive fatigability? 4. Does the connectivity in the brain of patients with chronic pain differ from healthy controls at rest as well as during activity while performing a vigilance task? 5. Is there an association between connectivity in the brain and 1. immunological biomarkers 2. fatigability and 3. results on neuropsychological tests?