View clinical trials related to Delirium.
Filter by:Postanesthesia care unit (PACU) delirium is subtype of postoperative delirium that occurs early after anesthesia and surgery during the recovery period. The consequences of PACU delirium have not been investigated thoroughly. So far it is unknown, whether patients with PACU delirium experience impaired postoperative quality of recovery. The aim of this observational study is to assess the impact of PACU delirium on quality of recovery 24 hours after general anesthesia for elective non-cardiac surgery.
Delirium is defined as an acute change in mental status characterized by fluctuating disturbances of consciousness, attention, cognition, and perception, usually secondary to acute injuries such as trauma or infections. Delirium is more frequent in older adults, and is associated with important poor clinical outcomes including increased mortality, functional deterioration, and higher expenditures for healthcare systems. Although it is not the only one responsible, the inflammatory response plays a key role in the development of delirium. From the first descriptions of the condition 2500 years ago, it is known that patients who present with inflammatory injuries such as trauma (pe. hip fracture) or infections (sepsis), frequently develop delirium. Microglia, are an inflammatory cell with phagocytic capacity, that inhabit the nervous system and have a critical role in the regulation of the inflammatory response in the brain. It is known that microglia have receptors that respond to systemic inflammatory mediators by generating new inflammatory mediators that exert their effect on other glial cells and neurons in the central nervous system, affecting their function. Mouse models have shown that depleting the brain of microglia prevents cognitive decline after a traumatic bone injury, suggesting a role of these cells in the development of delirium. Poly(ADP-ribose) polymerase-1 (PARP-1) is a nuclear enzyme that participates in DNA repair, and in the regulation of the expression of inflammatory mediators by immune cell. In vitro experiments have shown that PARP-1 enhances the microglial response to inflammation, and data from mice exposed to the bacterial component "lipo-poly-saccharide (LPS)", a classical model of delirium, showed that pharmacological inhibition of PARP-1 prevents cognitive decline secondary to that injury. Interestingly, nicotinamide, a vitamin widely available in the market, with a well-known safety profile in humans, is a well-recognized inhibitor of PARP-1. The role of PARP-1 nor nicotinamide in delirium has never been explored. Considering that, 1) there is evidence showing that PARP-1 may act as an enhancer of the inflammatory response of microglia and 2) the protective effect against cognitive impairment produced by pharmacological inhibition of PARP-1 in a mice model of delirium, we propose as hypothesis that PARP-1 participates in delirium pathogenesis by enhancing microglial activation in response to systemic inflammation. To address this hypothesis in patients, we propose to determine in a randomized clinical trial whether nicotinamide, a pharmacological inhibitor of PARP-1, is more effective than placebo for the prevention of delirium in older adults with requirement of oxygen (non-invasive) and suspected coronavirus disease (COVID-19) under study. The results of this research will contribute significantly in the field of delirium, improving the knowledge of its physiopathology, as well with the development of of new alternatives for its prevention in clinical practice.
To investigate the impact of cTBS on the incidence of postoperative delirium and changes of cognitive function in elderly patients after surgery. To explore whether short-term cTBS can reduce the risk of postoperative delirium as a preventive strategy.
As patient management is improving, more and more ICU survivors are being confronted with cognitive dysfunction and this well after their hospital stay. In the ICU, delirium rates have been reported to be as high at 81%. Delirium is associated with patient and family stress, increased hospital costs, increased duration of stay, escalation of care and increased mortality and morbidity. The physiopathology of ICU cognitive impairment is complex and involves an inflammatory cascade Recently, the role of 'resolvins' derived from omega-3 fatty acids has been studied in the resolution of inflammation. Therefore, this hypothesis of this study is that ICU patients with higher serum levels of resolvins at ICU admission, ICU day 2 and day 5 will have a lesser degree of cognitive impairment on day 5 of ICU stay.
Intensive care units (ICU) provide life-saving care for nearly five million people annually. Up to 80% of patients receiving care in an ICU experience at least one episode of delirium. Delirium, an acute episodic display of confused thinking and unawareness, predicts impaired cognition and accelerated cognitive decline which negatively impacts quality of life (QOL) long after hospital discharge. The average age of ICU patients is 52 years. These middle-age (MA) ICU survivors need cognitive interventions that are well planned, accessible, and effective to improve cognition and prevent accelerated decline so they can resume their previous QOL and enter older age with optimized cognitive function. Physical exercise and cognitive training independently improve cognition and emerging evidence indicates that combining these two approaches produces even greater effects on cognition. Community-based rehabilitation centers are accessible for MAICU survivors to engage in physical activity; cognitive training could easily be added. Approaches in which a patient engages in physical exercise and cognitive training concurrently is an understudied intervention for all ICU survivors, especially those who are middle-aged. Study aims are to investigate the feasibility and acceptability of a simultaneous recumbent cycling and cognitive training intervention (SRCCT) for MAICU survivors who experienced at least one delirium episode during their ICU stay. Feasibility will be determined by systematically evaluating research team training, participant recruitment, randomization, implementation, and intervention fidelity. Acceptability will be evaluated via a satisfaction, preferences, burden, and participant-suggested improvements survey. The SRCCT effect sizes will be calculated comparing multiple data point cognition scores between an SRCCT group and a usual care control group. Upon completion, investigators expect to understand the feasibility and acceptability of the SRCCT delivered in community-based rehabilitation centers, and the combined effect of SRCCT on cognition and QOL for middle-aged ICU survivors who experienced an episode of ICU delirium. The hypothesis is that study participants who engage in physical exercise and cognitive training concurrently will have a greater improvement in cognition and QOL than physical exercise training alone.
Patients are part of a family network. When any person in a family becomes critically unwell and requires the assistance of an Intensive Care Unit (ICU), this has an impact on all members of that family. COVID-19 changed visiting for all patients in hospitals across Scotland. It is not known what effect these restrictions will have on patients' recovery, nor do we understand the impact it may have on their relatives or staff caring for them. This study will look at the implications of the visiting restrictions as a consequence of the COVID-19 pandemic upon patients without COVID-19 who are in the cardiothoracic ICU. It will also explore the impact of these restrictions on them, their relatives and staff. This study will be carried out within a single specialised intensive care unit in Scotland using mixed methods. The first arm of this study will use retrospective data that is routinely collected in normal clinical practice. The investigators will compare patient outcomes prior to COVID-19 with outcomes following the implementation of COVID-19 visiting restrictions. The aim is to establish if the restrictions on visiting has an impact on the duration of delirium. Delirium is an acute mental confusion and is associated with longer hospital stays and worse outcomes in this patient group. The second arm of this study involves semi-structured interviews with patients, relatives and staff that will allow deeper exploration of the issues around current visiting policy. The interviews will last approximately 1 hour and will address these issues. They will then be transcribed word for word and analysed using grounded theory, meaning the theories will develop from the data as it is analysed.
Postoperative Delirium (POD) is a common complication in patients after cardiac surgery, which is associated with short-term prognosis and long-term quality of life. Due to the lack of specific treatment, prevention is the most effective strategy to reduce delirium. Risk assessment greatly contributes to guide prevention by stratifying the risk of the POD. However, the high-quality risk assessment tools are still sparse, and the combination of risk assessment and stratified prevention has not been applied to the management of delirium after cardiac surgery. In the previous work, we found the predictive value of preoperative cardiac function on POD, and found a critical value. On the basis of previous research, this project will learn from previous studies on risk factors of POD, and deeply explore potential predictors. Furthermore, we will develop and validate POD risk prediction model, and then develop it into a visual evaluation system. In addition, based on the theory of risk management and risk assessment tools, using the concepts and methods of evidence-based medicine, the risk assessment system and stratified management program of POD will be formed and evaluated by expert discussion meetings. It is expected that the risk assessment system and stratified management program constructed by this project could simply and quickly screen high-risk patients and carry out timely intervention, so as to reduce the incidence of POD, improve patients' prognosis and the quality of life after cardiac surgery.
The investigators intend to recruit 600 participants to see if alpha power during anesthesia is influenced by analgesic medication and associated with a reduction of delirium following surgery.
Postoperative cognitive dysfunction (POCD) is a common postoperative complication in patients aged 65 and over, which refers to cognitive function changes such as memory decline and attention deficit after anesthesia and surgery. In severe cases, personality changes and social behavior decline may also occur, resulting in irreversible cognitive impairment.Previous studies have suggested that cognitive dysfunction after general anesthesia is linked to a genetic disorder of the body clock.Exosomes are cellular forms of cellular microvesicles containing complex RNA and proteins.Exosomes can mediate the expression of genes in the late transcriptional period of the clock system, and directly or indirectly participate in the negative regulation of rhythm expression of minute control genes, playing an important role in the intercellular circadian rhythm information output pathway.Rhythm disorders in the core biological clock system of urinary exosomes and the clock control genes related to kidney can early indicate circadian rhythm changes in the core biological clock system.The sorting and detection of urinary exosome clock information materials in patients has the advantages of easy access, continuous monitoring, early diagnosis and less damage, making urinary exosome a biomarker for the diagnosis and monitoring of circadian rhythm of a good kidney biological clock system.
Respiratory end-tidal gas control is a fundamental of anesthetic management. The range of end-tidal (ET) O2 and CO2 during the conduct of anesthesia is far outside that found in the awake state. Recent work has indicated that alterations in end-tidal gases may influence the incidence of postoperative delirium (POD). This study will examine the feasibility of tight end-tidal gas control during anesthesia to decrease the incidence of POD.