Active clinical trials for "Cognitive Dysfunction"

The investigators aim to test the feasibility of a pragmatic non-pharmacological strategy, that may prevent cognitive decline in patients with mild cognitive impairment. This strategy is based on five different interventions: cognitive training, physical activity, nutrition education, adaption to memory loss, diagnosis and correction of hearing impairment. A quasi-experimental study will be implemented in Porto (Portugal), including patients that fulfill all of the following criteria: a) age 18-85 years; b) Montreal Cognitive Assessment (MoCA) score greater than or equal to two standard deviations below the normative reference value for the corresponding age and education level in the Portuguese population OR diagnosis of Mild Cognitive Impairment, performed by a Neurologist, during the six previous months, considering the results of a neuropsychological battery; c) Cardiovascular Risk Factors, Aging and Dementia (CAIDE) Dementia Risk Score of at least six points. Patients who have any medical disability that contraindicates physical activity or have a lack of autonomy in daily activities will be excluded. The program will be implemented in groups of 10 participants, over a period of 10 consecutive months.

The objective of this qualitative study is to create a better understanding of patients' mental model of health data engagement interfaces and tools (such as Dynamic Consent). The researchers will focus especially on those people who - plausibly - require adjusted communication particularities and interaction modalities due to a cognitive impairment stemming from a neurodegenerative disease. Taking into account the specific characteristics of patients with dementia, the goal of this study is to investigate how to communicate according to patients' personal skills and capabilities and identify both the proper support mechanisms for engagement 2.0 consent as well as feedback mechanisms (return of research results). Through a focus group & interview setup, this study will discern design requirements and propose design recommendations for the (future) development of health data engagement interfaces.

The purpose of this study is to find the characteristics of mild cognitive impairment (MCI) using technology of Multi-Modality MRI , including structural MRI, functional MRI and diffusion tensor imaging(DTI). Then analyze the difference between progressive MCI (MCIp) and stable MCI (MCIs) and further construct the predictable classifier from MCI to Alzheimer's disease (AD) based on Multi-Modality MRI characteristics of MCI patients.

Background: Postoperative cognitive dysfunction (POCD) in elderly patients after noncardiac surgery is a common problem. Therefore,this study was designed to assess POCD after closed-loop coadministration of propofol and remifentanil guided by bispectral index in comparison to intravenous anesthesia in elderly patients undergoing major noncardiac surgery. Methods: After approval of the local ethical committee was obtained, 204 patients (American Society of Anesthesiologists physical status I-III; age, > 55 yr) undergoing surgery (duration, > 1 h) were enrolled into this pospective randomized monocenter study. Patients received anesthesia 3 days after using a neuropsychological test battery.

This study is to find out the imaging marker and the changing laws of the marker during the course of the disease. The final purpose is to provide scientific evidence for new prevention, diagnosis and treatment of Alzheimer's disease.

The objective of this project is to study cognitive yields in people of the town of Salamanca over 65, with particular emphasis on the acquisition of the initial symptoms of cognitive impairment in order to detect mild cognitive impairment and study the relationship between the clinical situation and cardiovascular risk factors. It will depart from a reference population of 420 people older than 65 years living in the municipality of Salamanca which took part in a survey prior to partner health needs of the elderly of 65 years in the municipality of Salamanca. This was a stratified sampling as stratum considering the area of health. The results of this study are expected to evidence the extent of the problem of cognitive decline in the population over 65 years. It is also expected to determine the relationship between the co-morbidity in this problem and specific factors of cardiovascular risk in this group of population.

Many studies have shown that those with coronary artery disease (CAD) have a more rapid decline in memory than expected and that they are at an increased risk of developing dementia. It is not understood how memory decline is linked to CAD; however, it has recently been discovered that certain byproducts of fat breakdown involved in the development of CAD, called ceramides, can harm brain cells. In the present study the investigators will recruit 129 CAD patients from a cardiac rehabilitation facility and measure memory performance and blood ceramide concentrations at baseline, 3 months and 6 months. The investigators will also measure important blood messengers of inflammation and assess whether they are associated with ceramide production. In addition, relationships between ceramides and other aspects of brain function, such as thinking speed and the ability to plan and sort information will be explored.

The use of desflurane in elderly subjects (>65 years old) undergoing general anesthesia with endotracheal intubation will result in decreased POCD compared to sevoflurane if the patient's MAP is within 20% of the patient's baseline and the cerebral suppression state index stays within the moderately anesthetized range during general anesthesia.

The purpose of this study is to determine whether a certain clock-gene (HPER3) with the 5/5 genotype carries a higher risk of post-operative cognitive dysfunction.

Insulin-like growth factor 1 (IGF)-1 is an important neuromyotrophic hormone. Disregulation of this hormone has been reported to influence the genesis of cognitive impairment and dementia in the elderly patients. We analyzed the possible link between IGF-1 and risk of Sarcopenia and Mortality in a cohort of elder patients with cognitive impairment.