View clinical trials related to Cognitive Dysfunction.
Filter by:The main purpose of this study is to investigate the adverse cognitive side-effects of electroconvulsive therapy (ECT). The second aim is to investigate the mechanisms of effect of ECT.
Although blood transfusion is a representative treatment for acute anemia due to blood loss during surgery, it is also a powerful risk factor for postoperative cognitive dysfunction. 'Restrictive transfusion', which transfusions minimal red blood cells, is not only useful for conserving limited blood resources, but also does not worsen prognosis or mortality after surgery. Research has also been reported that severe restrictive transfusion has improved prognosis and mortality. However, anemia is also one of the risk factors for postoperative complications, including neurocognitive impairment, it is still controversial how much anemia should be allowed in elderly people who are sensitive to ischemia or heart disease. The purpose of this study is to determine whether the restrictive transfusion policy reduces the frequency of postoperative cognitive dysfunction than the liberal transfusion policy in patients aged 65 years or older who undergo lumbar interbody fusion. Restrictive transfusion strategy (which initiates transfusion when hemoglobin level is less than 8 g / dL during perioperative period) // liberal transfusion strategy (which initiates transfusion when hemoglobin level is less than 10 g / dL during perioperative period)
Our study is designed to evaluate the effect of intranasal insulin on postoperative cognitive dysfunction. Primary outcome: 1. The occurrence of cognitive dysfunction at approximately 7 days after surgery. Secondary outcome: 1. Incidence of any side effect.
AUDICS-ICU is a prospective observational aiming to evaluate the prevalence of auditive dysfunction following cardiac surgery. Participants will undergo audiometric testings before and 3 months after cardiac surgery with cardiopulmonary bypass. Furthermore, the study evaluates hearing loss-associated ICU-acquired delirium after cardiac surgery with cardiopulmonary bypass.
Heart disease and conditions related to the blood vessels are responsible for a large proportion (over a quarter) of the deaths in people with chronic obstructive pulmonary disease (COPD). The changes can also affect the smaller smaller blood vessels within the body, in particular the brain and the kidneys. This might be related to how the heart pumps and if it is under any pressure. Investigations performed at the University in healthy older volunteers demonstrated how the blood flows in the brain and heart during exercise. Exercise gently puts the whole body under some pressure and therefore exposes any weaker areas. In this study the investigators are hoping to find out what happens to the blood flow in the brain and in the heart in patients who have COPD when they exercise and in the resting state. This will be compared to people of a similar age with a similar smoking history but without COPD. This will be examined using state of the art magnetic resonance imaging (MRI) and will allow us to assess whether changes in structure and function are related to this altered blood flow. Our hypothesis is that COPD will cause a larger change in blood flow during exercise compared to the healthy volunteers and that reduced cardiorespiratory fitness will be associated with increased age related structural within the brain.
This study is designed to assess the therapeutic effect that music creativity engagement has on cognition and social/emotional well-being, with a special interest in quantifying the associated connectivity changes in the brain. Investigators will measure the effect that a creative music intervention has on health-related outcomes for mild cognitive impairment (MCI) patients using novel neural markers, laboratory-based cognitive tasks, assessments of loneliness, perceptions of stress, and social support.
The aim of the study is to investigate whether the effect of disorientation on physical motion and gait among dementia patients, can be reliably measured in a laboratory environment, by means of a virtual reality (VR) experimental setup.
Deterioration of posoperative cognitive function (DCPO) is an intermediate state between normal cognitive aging and dementia, defined as a cognitive alteration greater than expected for the patient's age and educational level, but which doesn't interfere with the activities of daily life, in its evolution it can lead to dementia or it can present reversal of the deterioration with return to a normal cognitive state, or a stabilization with permanence in a state of moderate alteration. In general, higher cognitive function can be affected by organic or functional problems, anesthetic-surgical, diseases associated with the elderly and / or chronic-degenerative comorbidities. Older patients who undergo regional anesthesia have special interest, the adverse cardiovascular effects, or prolonged sedation due to a pharmacokinetics that is altered by age, call special attention to reduce complications in the postoperative period. In 2010 at the Siglo XXI Hospital in Mexico City, the 68-year-old population attended was 30% of those with postoperative cognitive dysfunction 26% a week, and 10% persistence at 3 months. The DSM V recommends a neuropsychiatric, psychological and cognitive evaluation of the patient in the postoperative period, through tests such as the Mini Mental State Examination. sub-anesthetic doses of ketamine have been recently proposed to reduce the postoperative markers of inflammation, pain and opioids, in addition to having an antidepressant effect. There is a pharmacological rationale for using ketamine as a preventative measure against postoperative delirium based on its N-methyl-D-aspartate (NMDA) antagonism, It has the potential to protect against such neurological injury.
This clinical RCT study intends to combined different forms of multi-channel tDCS with the routine cognitive training process to treat patients with post-stroke cognitive dysfunction. The therapeutic effects among single-channel tDCS group, multi-channel tDCS and pseudo-multichannel tDCS group will be compared. Brain magnetic resonance mechanism research will also be included to reveal the possible mechanism of multi-channel tDCS technology for PSCI brain network. Thus, the efficacy and mechanism of multi-channel tDCS in post-stroke cognitive function rehabilitation will be researched both in the clinical and basic levels.
This is a long-term, prospective, interventional study to investigate the role and prevalence of subclinical epileptiform activity in the hippocampus in patients with mild cognitive impairment (MCI) due to Alzheimer's disease (AD). The investigators would like to investigate whether subclinical epileptiform activity in the hippocampus is more prevalent in patients with MCI, compared to healthy controls and to evaluate its effects on cognitive decline. Evolution of cognitive decline will be assessed over a time period of two years.