Active clinical trials for "Cognitive Dysfunction"

This study aims at developing and evaluating a support group program for patients with mild cognitive impairment (MCI) and their partners. These patients have defective memory function but are not demented. However, there is an increased chance of developing dementia in the near future; 10-15% per year for MCI patients, in contrast to 1-2% per year for healthy elderly persons. For the patients and their caregivers this means that they are confronted with feelings of uncertainty and fear towards the future. They also have many questions about how to improve their memory problems and how to cope with other changes or consequences. The purpose of the support group program is to improve coping skills and facilitate adaptation to the impairments, in order to reduce anxiety or depression and strengthen feelings of competence in patients and their partners.

Retrospective study to evaluate the effect of a remote cognitive-rehabilitative intervention during the Covid outbreak in subjects with Parkinson's disease.

A monocenter observational study will be started to investigate postoperative cognitive dysfunction 5 years after minimally invasive cardiac surgery. Postoperative cognitive dysfunction will be evaluated in three groups: an endoscopic-CABG group (endo-CABG), a PCI (Percutaneous Coronary Intervention) group and a healthy control group. It is hypothesized that the endo-CABG group will show a stronger postoperative cognitive dysfunction compared to the PCI group and the healthy control group.

A consistent number of studies in the last few years highlighted that the functional and clinical worsening in patients with cardiac and/or respiratory disease/s increase the risk of cognitive decline. The literature reports a greater diffusion of screening procedures for cognitive deficits in patients with cardiac diseases compared to patients with respiratory diseases. However, in both populations, the interest for cognitive impairment is justified by multiple reasons: the numerous exacerbations of the disease and re-hospitalizations, the difficulty in following complex therapeutic regimens and recognizing worsening of symptoms, the reduced functional autonomy and the rehabilitation outcome . Although recently the Italian Society of Geriatrics and Gerontology has raised the threshold for the definition of the 'elderly' patient from 65 to 75 years to better adapt to the current physical and mental performance of men and women living in economically developed countries and to the demographic situation of the Italian population. Therefore the three classes of 'elderly' patients that we will enroll will be defined as follows: "young old" (65-74 years), "old" (75-84 years), and "old-old" (≥85 years). In general, the age of the eligible sample is defined as ≥ 65 years. Furthermore, in chronic diseases, emotional factors, such as anxiety and depression, also play an important role in disease adaptation and in the rehabilitation outcome in both cardiac and respiratory diseases. Alongside the problems relating to emotional aspects and cognitive decline, the frailty syndrome is noteworthy, particularly in the elderly and in the presence of cardiac/respiratory diseases. Frailty is associated with the loss of functionality that leads to greater vulnerability to adverse events such as the increased risk of falls, hospitalization, institutionalization, disability and mortality. Frailty screening or assessment scales provide predictive information on the risk of death and institutionalization and they are a good predictor of acute hospital outcomes too. Instead, concerning what emerges from international literature, in rehabilitation cardiology, despite the increase in the presence of elderly patients, the clinical and prognostic relevance of frailty has not yet been well defined and measured. On the other hand, recent studies points out that frailty is present in 1/4 of outpatient COPD patients, it is an independent predictor of rehabilitation program interruption and it is also easily reversible in the short term after rehabilitation, thus frailty appears to be one of the relevant aspects in rehabilitative treatment. In light of the data in the literature, the purposes of this prospective observational study are to evaluate the following objectives: At baseline, the presence of cognitive impairment, anxiety, depression, the assessment of self-reported adherence to therapeutic prescriptions and frailty in a sample of elderly patients (age ≥65) with chronic cardiorespiratory disease admitted for a cardiorespiratory rehabilitation cycle and the correlation with disease severity and functional aspects. In follow-up, the impact that these factors have on the rehabilitation outcome at the end of hospitalization and on the state of health at six months (telephone interview).

We hypothesize that reductions in gamma activity are a key mechanism underlying cognitive dysfunction in PD and that interventions to increase gamma activity will improve cognition.

A six month, placebo-controlled, parallel group project in which MCI participants will receive 30 g/day of a custom-made MCT-based ketogenic supplement or a matching placebo. Uptake of both the brain's fuels - ketones (as 11C-AcAc) and glucose (as FDG) - both before and after the intervention will be assessed by PET (position emission tomography) ; imaging and ketone pharmacokinetic as primary objective as well as fMRI, diffusion MRI and cognition.

To investigate whether [18F]NAV4694 positron emission tomography (PET) scan findings have the ability to distinguish subjects with mild cognitive impairment (MCI) who progress to Alzheimer's disease (AD) from those who do not.

The purpose of this study is to determine whether an omega-3 fatty acid supplementation is effective in the prevention of progressive cognitive decline in elderly people aged 75 years or older.

African Americans are twice as likely to develop Alzheimer's disease as white Americans, but few African Americans are enrolled in large Alzheimer's biomarker studies. The current proposal aims to determine the influence of Alzheimer's disease and vascular disease on memory and aging in African Americans through modern biomarkers (spinal fluid, MRI, and amyloid imaging), and how these may differ between African Americans and white Americans in preparation for a large multi-center study of aging in African American.

Despite an ongoing controversy in the scientific literature, the link between anesthesia and dementia and/or cerebral atrophy remains unclear. Recent retrospective data suggests an association of surgery with a reduction in brain volume. With the present prospective cohort study, we would like to reproduce and verify these results, and investigate a possible association with the postoperative cognitive performance. We will measure cerebral gray matter volumes in elderly patients before, 3 and 12 months after major non-cardiac surgery and determine cognitive functions at the same time. Study hypothesis: Surgery under general anesthesia in elderly patients is associated with a loss of gray matter. The degree of cognitive dysfunction is associated with the loss of grey matter in brain areas relevant for cognitive functions.