Active clinical trials for "Cognitive Dysfunction"

Objectives to investigate the incidence and associated factors for early postoperative cognitive dysfunction in the patients with peritoneal surface malignancies undergoing cytoreductive surgery and hyperthermic intraperitoneal chemo-therapy(CRS-HIPEC).Methods fifty patients aged 18-65 yr were included in the research and were grouped base on the score of neuropsychological assessments which had done in the ward at 7 day before and after the surgery. The investigators monitored various indicators in the perioperative period, such as age, body weight, sex, education, duration of operation, intraoperative blood loss, cardiovascular events, amount of fluid infused per hour. Meanwhile, the concentration of serum amploid A (SAA),IL-1beta,TNF-alpha,HMGB1,S100b,cortisol and Abeta40 were measured at the various stage of the operation and 24 hours after the operation, and the differences of data between postoperative cognitive dysfunction(POCD) and Non-POCD groups were analyzed.

T2D and cognitive impairment are two of the most common chronic condition found in persons 60 years and older. Diabetes type 2 increases with age and studies suggest that the diabetes is one of the risk factor for cognitive impairment and dementia. Although there is much recent research showing that diabetics at every age have more cognitive impairment and dementia than non-diabetics, relatively little attention has been paid to the implications of this complication in the management of T2D in terms of screening, prevention, education and treatment adherence. There are now guidelines for periodic evaluation of patients with diabetes as early detection of complications of the disease, but so far there are no similar assessment and monitoring of cognitive function. In this study the investigators examine cognitive function in young diabetic patients (from 20 to 55) using the MoCa test, that allows detection of mild cognitive impairment, and may be carried out during a visit, an annual advisory diabetes clinic.

Up to 50% of patients undergoing surgical aortic valve operation suffer from some level of post-operative cognitive dysfunction (POCD). Frontal lobes of the brain, where executive functions are located, are highly susceptible to trauma caused by possible blood malperfusion to these areas of the brain during surgery. Conventional and established neuropsychological test methods are poor in distinguishing these kinds of trauma, as they are isolated, structured tests that do not require multitasking and processing of multiple stimuli at the same time. The phase 1 goal of this study is to employ an experimental Executive reaction time (RT) test to see if this method could improve objective detection of subtle brain dysfunction assumed to underlie persistent cognitive, somatic, and affective complaints reported by patients who have undergone electic aortic valve replacement (AVR) surgery. Phase 2 of the study will concentrate on patients undergoing transcatheter aortic valve implantation (TAVI).

The purpose of this study is to improve our understanding of potential changes in size, shape and activity in some brain areas that can occur in women receiving different types of Breast Cancer therapy, and how these changes are related to the development of mild cognitive impairment as the result of these treatments.

The goal of this study is to create new retinal imaging processing software useful for the development of novel retinal biomarkers of cognitive impairment associated with Alzheimer's disease (AD).

Increasing numbers of elderly patients are undergoing cardiac surgery. Elderly patients may have prolonged recovery following cardiac surgery when compared to other groups of patients, and are at higher risk of postoperative delirium, postoperative neurocognitive decline and reduced quality of life following hospital discharge. The goals of sedation and analgesia for patients following cardiac surgery are multifold and include postoperative pain relief, the facilitation of ventilation, resolution of hypothermia and normalization of electrolyte balances. The choice of sedative agent however can impact postoperative outcomes. Dexmedetomidine has been associated with improved quality of recovery in patients undergoing major spine surgery and with a reduced incidence of delirium, both of which can impact a patient's quality of life following surgery. The investigators hypothesized that the use of dexmedetomidine as a sedative agent immediately following cardiac surgery in elderly patients would result in improved quality of recovery and a reduced incidence of delirium in the postoperative period, when compared to propofol. The investigators were also interested as to whether there was an associated improvement in neurocognitive outcomes in this population. Questions: Does the use of dexmedetomidine as a sedative agent in ICU in elderly patients following cardiac surgery result in improved Quality of Recovery scores when compared with propofol? Does the use of dexmedetomidine as a sedative agent in ICU in elderly patients following CABG+/- AVR result in a reduced incidence of postoperative delirium as compared to propofol? Do these patients subsequently have a reduction in cognitive decline?

This ancillary study will determine if early administration of a single high-dose (540,000 IU) oral vitamin D3 (cholecalciferol) treatment improves 12-month global cognition and executive function as determined by comprehensive neuropsychological testing in 140 critically ill patients with Vitamin D deficiency at enrollment.

The purpose of this study is to assess cognitive function using a rapid, portable, computerized neurocognitive testing device in a wide variety of clinical settings.

This is an observational study with the aim of validating, in a consistent population sample, with appropriate follow-up, whether EEG connectivity analysis combined with the neuropsychological evaluation and ApoE genotype testing in aMCI could be of help in early identification of converted aMCI as a first-line screening method in order to intercept early those subjects with a high risk for rapid progression to AD.

Postoperative cognitive dysfunction is defined as a cognitive decline arising after surgery. In the present study, the authors evaluate the level of D-Amino Acid Oxidase, D-serine and Serine in blood as an indicator of postoperative cognitive dysfunction after cardiac surgery.