Active clinical trials for "Cognitive Dysfunction"

Many hospitalizations or emergency room visits are due to problems of iatrogenic medication, especially in elderly patients who are very often polymedicated. Moreover, they are more at risk because of fragility. This has an important socio-economic impact. It therefore seems important to act upstream of these adverse events and a review of the drugs available in the homes of elderly patients seems a good starting point.

This study will determine the usability of a website for people with schizophrenia versus other websites designed for the same purpose.

This study is attempting to improve word finding and memory retrieval problems persons with mild cognitive impairment (MCI) may have.

According to 2011 HAS recommendations, early detection of Alzheimer disease is the major objective in order to allow an earlier care and support. These recommendations strengthen general practitioner role, who plays a key role in the identification of cognitively impaired patients. HAS recommendations are the use of MMSE like test (Mini Mental State Examination) at general practitioner office. A self-screening test, without medical presence, would allow a self-administered cognitive assessment by the patient. A review of the literature about self-administered cognitive tests has been realized. The Self-Administered Gerocognitive Examination (SAGE) has been chosen. It is a brief, valid and reliable cognitive assessment tool, rated on 22 points, which allows an early detection of cognitive impairment, with a sensitivity close to the MMSE test. Nevertheless, SAGE has never been tested at home without medical supervision. In this study, the investigators will determine if SAGE scores at home correlates with MMSE scores at general practitioner office. Patients with inclusion criteria will be recruited during the general practitioner consultation and will have a clinical assessment included MMSE and clinical data collection. Then, SAGE will be given to the patient in order to be completed at home without medical supervision and send to the general practitioner.

More than 30% of patients undergoing thoracic surgical procedures develop persistent post-surgical pain (PPSP), which results in impaired functioning, diminished quality of life, and increased risk of chronic opioid use. The proposed project aims to determine whether a prospective, randomized, controlled study of smartphone-based perioperative cognitive flexibility training will reduce the incidence of PPSP in high-risk individuals undergoing thoracic surgery.

The purpose of this study is to see whether programs that include both a patient and their spouse or a patient and family caregiver (known as a dyad) are helpful for families in which one member of the dyad has cancer and mild memory difficulties and/or concerns. Participant and their spouse or participant and their family caregiver will have six, 60-minute video-conference sessions which will be scheduled at their convenience. The investigator will loan participants a tablet computer (iPad) to use for videoconferencing and train the participant in its use. Participant and their spouse or participant and their family caregiver will complete three assessments - one before starting the sessions, one after the sixth session, and one after 1 month. Each assessment will include surveys, which the participant will complete separately from their spouse or family caregiver. For most people, it will take upwards of 2 - 4 months to complete this study.

A decline in cognitive abilities following surgery (POCD: Post-Operative Cognitive Dysfunction) affects up to 47% of patients undergoing a surgical procedure. Risk factors include age, previous depression, alcohol and drug use, smoking, cognitive impairment as well as pre-operative biochemical and haematological abnormalities. Inflammation has been proposed as a potential cause, however, there is little empirical and clinical evidence in this area to determine aetiology or reduce risk of incidence. Zinc is an important metal for brain function, with deficiency associated with poorer cognitive outcomes. In relation to POCD, biomarker studies have revealed that levels of a zinc-alpha-2-glycoprotein (AZGP1) were lower in patients with POCD. AZGP1 is a multifunctional glycoprotein implicated in cell adhesion, immune response, transmembrane transport and cellular proliferation. Microglia, the immune cells of the brain, are highly sensitive to changes in zinc which have been proposed to contribute to neurodegenerative disease as well as POCD. However, whilst animal studies looking at the effects of zinc on cognition have been promising, robust human trials are lacking. This research aims to establish the role of zinc in POCD by determining associations between zinc status, inflammation, cognitive function, and biomarkers of POCD risk and incidence. This will be achieved by gathering clinical and cognitive data from a sample of older adults undergoing surgery. Blood samples will be taken pre and post-operatively to establish zinc status and plasma concentrations of biomarkers of POCD risk and incidence. Pre and post-operative cognitive assessments will also be conducted to measure memory and executive function. Incidence of POCD will be determined via neurological assessment according to diagnostic criteria. Should associations between zinc status, POCD biomarkers, inflammation, cognitive performance and POCD incidence be established, not only would it lead to future work to investigate potential mechanisms of action as well as intervention studies looking to support zinc status, optimising early identification of individuals who may be at higher risk of developing POCD should lead to better patient outcomes.

To compare alternation of retinal microcirculation within the macula and optic disc in patients with dementia, mild cognitive impairment (MCI), and cognitively healthy subjects who had positive amyloid biomarkers (Aβ +) or not, using optical coherence tomography angiography (OCTA).

The primary objective of this study is to evaluate the feasibility of implementing blood-based biomarker testing for amyloid positivity designed to aid the early detection of Alzheimer's Disease and Related Dementia (ADRD) in patients 65+ including the rate that patients and providers follow up abnormal blood-based biomarker testing.

This study will recruit surgical patients more than 65 years old. Patients who participate will wear a sticker on their forehead during surgery which monitors their brain waves (electroencephalogram, EEG) and participate in memory testing before and after surgery. Brain wave patterns will be compared between patients who have problems with memory and thinking after surgery and those who do not. The hypothesis is that there will be characteristic brain wave patients for who will go on to have problems with memory and thinking after surgery.