View clinical trials related to Cognition Disorders.
Filter by:The investigators hypothesize that critical care trained registered nurses and physicians can perform measurements of cognitive impairment in critically ill pediatric patients in a reliable and valid manner. To test this hypothesis, the investigators will incorporate an instrument (psCAM-ICU) to assess both components of consciousness, arousal and content, in critically ill pediatric patients at least 6 months to children 5 years of age, both on and off mechanical ventilation, and compare these assessments to those of the reference standard.
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.
Background: Older diabetic people are at greater risk of cognitive decline than non-diabetic people. Vitamin B12 deficiency in older people is associated with cognitive impairment and Alzheimer's disease. Vitamin B12 deficiency may therefore contribute to cognitive decline in older diabetic people. Objective: To determine whether the correction of mild vitamin B12 deficiency in cognitively normal older diabetic people reduces the incidence of cognitive decline. Design: randomized, double blind, placebo controlled trial Subject: Cognitively normal diabetic outpatients aged 70 years or older with plasma vitamin B12 150-300 pmol/L in medical and family medicine/ general outpatient clinics. Procedure: After excluding those with clinical manifestations of vitamin B12 deficiency and without family member who can reliably inform on cognitive functioning (personal contact at least once a week), eligible patients will be invited to participate in this clinical trial. After obtaining written consent, research assistant (RA) will record demographic and clinical information from the subjects and perform neuropsychological tests - 1. Clinical dementia rating scale (CDR), 2. neurocognitive test battery (see below) 3. Chinese Mini mental state examination (MMSE), 4. Geriatric depression scale (GDS). Fasting blood will be taken for serum methylmalonic acid (MMA). Those with cognitive impairment and significant comorbidities will be excluded. 264 eligible subjects will be randomly assigned to take either two Vitamin B12 500 microgram or two identical looking placebo tablets once daily for 27 months. All subjects or family caregivers are reviewed in the research clinic every 12 weeks in which the research assistant performs a pill count and dispenses the trial tablets. At 9 monthly intervals, the subjects will have neurocognitive test battery repeated at research clinic. CDR will be repeated at month 18 and 27. At month 9 and 27, fasting serum MMA and vitamin B12 will be repeated.
In our institute there is ongoing treatment of brain injury patients with Hyperbaric oxygen therapy. These patients undergo neuro-cognitive function tests in addition to brain imaging studies before and after treatment. The aim of this study was to evaluate the perfusion and microstructure changes seen in MRI in addition to the cognitive tests before and after the treatment.
Magnetic resonance imaging (MRI), as a non-invasive and non-contrast enhanced technique, has the potential to improve patient health care and management. The overall objective of proposed project is to: 1. develop, customize, and optimize anatomic and functional MRI methods, 2. explore the use of MRI methods to study CKD and evaluate post-transplant kidneys, and 3. investigate the potential of MRI in the diagnosis, prognosis, and monitoring of the progression of renal dysfunction. In addition to direct studies of the kidney, brain MRI studies will also be performed to identify the cerebrovascular and cognitive effects of chronic renal function deficiency and medical treatment (e.g. hemodialysis and immunosuppression). The brain and kidneys have similar vascular bed, and both are susceptible to vascular injury, which provides the pathological basis for the widely recognized association of reduced renal function with prevalent cerebrovascular diseases (CVDs) and cognitive impairment (CI). The MRI methods in the brain will be applied to explore the origins for widely observed CVDs and prevalent cognitive impairment (CI) in kidney disease patients.
The purpose of this study is to evaluate the psychometric properties of a Self-administered Memory Screening Test with Automated Reporting (SAMSTAR) adapted from the Rey Auditory Verbal Learning Test (RAVLT) in normal control (NC) participants and participants with Mild Cognitive Impairment (MCI) against a standard version of the RAVLT test, administered by an examiner under the same conditions.
Stroke disease and cognitive impairment are common in patients established on haemodialysis (HD) for end-stage renal disease (ESRD). Further, initiation of HD appears to transiently increase the risk of stroke. The mechanism by which this occurs is not known. Using ultrasound, patient questionnaires and brain MRI our study will observe changes in cognition and cerebral blood flow whilst receiving HD compared to a non-dialysis day. Transient clinical and ultrasound alterations will be correlated to radiographic changes in cerebral perfusion and structure on MRI to determine the underlying mechanism for the increased stroke risk. The investigators will observe this effect in the immediate and longer term (12 months observation). A greater understanding will allow development of effective preventive strategies.
The purpose of this study is to evaluate the early and late effects of Transcranial Led Therapy (TLTC) in memory and executive functions in patients with moderate and severe TBI history (TBI time longer than 3 months).
The overarching goal of the proposed study, named SYNERGY, is to explore relationships among balance performance, cognitive function, affective dysregulation, as they relate to the community re-integration in Veterans with TBI. The SYNERGY study findings can aid in the development of a better outcome models for the clinicians in facilitating effective community re-integration in Veterans with TBI
This clinical trial tests the feasibility, effectiveness and patient satisfaction with cognitive remediation therapy for patients diagnosed with schizophrenia or schizoaffective disorder within a forensic hospital. It is hypothesised that patients receiving cognitive remediation therapy will have an improvement in cognitive performance, real world functioning, symptoms, violence risk and benefit more from additional psychosocial treatment programmes over time relative to patients receiving treatment as usual. Furthermore it is hypothesised that it will be feasible to carry out such a study and that patients will report high rates of satisfaction with cognitive remediation therapy. Finally it is hypothesised that differences on the effectiveness measures will be maintained at 6 month follow up after the end of treatment.