Post Operative Delirium

This study will examine whether noninvasive, transcutaneous vagal nerve stimulation (tcVNS) can help restore consciousness in patients in the operating room and the Post Anesthesia Care Unit (PACU). The study will also investigate if tcVNS can expedite discharge from the PACU and examine whether tcVNS administerd in the PACU helps reduce delirium and depression after surgery. The study will also evaluate whether tcVNS speeds cognitive recovery from emergence of anesthesia and surgery.

The goal of this observational study is to learn how exercise-induced irisin protects the brain. It also explores irisin's effect on postoperative delirium (POD) in older adults. The main questions it aims to answer are: Does daily activity link to POD? Does irisin play a mediating role in this process? Researchers will enroll active and inactive adults aged 65 and older. All will have surgery under spinal anesthesia. The researchers will measure irisin levels in spinal fluid. They will track POD and other complications for five days after surgery.

To observe and study the clinical effect of Huperzine A Injection on reducing postoperative delirium in elderly patients undergoing non-cardiac surgery

Patients with Parkinson's disease seem prone to developing postoperative delirium after surgery, the causes of which remain understudied and multifactorial. Anesthetic management remains challenging due to the changes in neurotransmitter levels in these patients which translate to altered drug effects. Avoiding excessive anesthesia is essential. Processed electroencephalography (EEG) is used worldwide along with our centre to monitor depth of anesthesia. It is non-invasive and easy to use. Some EEG patterns like "burst suppression" are easily identifiable and indicate that the brain has fallen into an excessively low metabolic state, which could mean increased anesthetic sensitivity. Appearance of "burst suppression" can predict delirium in non-neurosurgical procedures, but this has never been studied during surgery for deep brain stimulator insertion in Parkinson's disease patients. Through this study we wish to observe the association of EEG parameters with the development of postoperative delirium in this subset of the population.This has the capacity to change anesthetic practice by being mindful of the fragile brain of such patients and individualizing drug dosing for each patient to improve outcomes and reduce hospital stay.

Double blind, double dummy trial of the use of IV acetaminophen versus oral acetaminophen for the prevention of delirium after cardiac surgery. The underlying hypothesis is that better pain control and less use of narcotics will lead to a lower incidence of delirium from day 1 to 7 following cardiac surgery. Other important secondary outcomes are the total use of narcotics, ICU and hospital stay, improved cognitive function at 6 months and 1 year post surgery, NSAID use at each centre and associated NSAID complications.

Post-operative delirium (POD) is known to be independently associated with pre-operative frailty, pre-operative cognitive status and per-operative ElectroEncephaloGram (EEG). However, no study has focused on the impact of these pre- and peri-operative outcomes on the prediction of Post-operative delirium (POD). Therefore, this study has been designed to assess the performance of a new score that includes pre-operative frailty, and per-operative ElectroEncephaloGram (EEG) in predicting post-operative delirium.

Perioperatively, patients experience an unnecessarily high level of side effects associated with their treatment. These side effects include nausea, severe pain, anxiety, and stress. Moreover, many patients develop postoperative delirium (POD) and neurocognitive dysfunctions, often resulting in long-term cognitive impairment, decreased quality of life, and increased mortality. However, physicians, nurses and their institutions do not receive structured feedback regarding these aspects of each patient's well-being. They may therefore be unable to engage in the essential cause-and-effect learning necessary to evaluate and consecutively reduce such side effects. Effective guidelines conform prevention is the proven key to shielding our patients from adverse Outcomes. The Safe Brain Initiative's high-quality routine data-for-action is a sword and accelerator for moving towards patient-centred, precision care. Thus, establishing a foundation for value-based and patient-centred healthcare development. However, a turnkey real-world solution is challenging to develop and implement and requires substantial resources. As a result, such solutions are usually beyond the scope of a single institution. The SBI platform provides high-quality, real-world data to bridge this gap. It allows monitoring and in-depth analysis of cause and effect in the day-to-day routine of individuals, departments, and institutions. The SBI's approach is continuously improved and updated. An organization called the SBI Global Society oversees the quality and precision of science through experts in the field. At SBI Hospitals and Flagship centres, Masterclasses are conducted and can be attended alongside clinical immersions. SBI Solutions manages, develops, and provides technical and service support for the Safe Brain Initiative. Its service guarantees the professional and GDPR conform management of data handling and storage as well as the user-friendly functionality of the SBI-Dashboard solutions.

Traditionally, general anesthesia is maintained with inhalational anesthesia (GAS), but there is a gap in knowledge regarding whether intravenous anesthesia (IV) can prevent deleterious postoperative outcomes in the geriatric surgical population. The goal of this clinical trial is to determine whether intravenous anesthesia (IV) leads to a decreased incidence of postoperative delirium (POD), postoperative cognitive dysfunction (POCD), and functional decline, and improved patient-reported outcomes (PROs) in older adults undergoing non-cardiac surgery when compared to the standard inhalational anesthesia (GAS). This single-center, 1:1 randomized, double-blind (patient \& outcome assessor) clinical trial will compare inhalational vs. intravenous anesthesia on POD, POCD, functional status, patient-reported outcomes (PROs), and blood-based biomarkers in older patients undergoing elective, inpatient, non-cardiac surgery. Upon enrollment, 260 women and men ≥ 70 years undergoing elective noncardiac surgery under general anesthesia will be randomized to 2 groups: TIVA or GAS.

This is prospective double-blinded placebo-randomized controlled trial that aims to compare the effect of preoperative administration of oral duloxetine 60 mg on decreasing the incidence of postoperative delirium in cancer patients undergoing surgery.