Delirium, postoperative

This trial compares three common anesthetics, ciprofol, propofol, and sevoflurane, to see which one best prevents delirium, a sudden state of confusion and memory problems, in older adults after brain tumor surgery. About 381 people aged 65 to 90 will be randomly assigned to rece…

This trial tests whether an ultrasound-guided injection near a nerve cluster in the neck, called a left stellate ganglion block, can reduce inflammation and lower the risk of delirium in older adults undergoing coronary artery bypass graft (CABG) surgery. Half of the 81 participa…

About one in four older adults experiences confusion (delirium) after cardiac surgery, which can lead to longer hospital stays and higher risks. This pilot study tests whether using a brain-monitoring device to personalize blood pressure during surgery can help prevent delirium. …

This study tests whether using a special brain monitor (BIS) to guide sedation can reduce the amount of sedative drugs given to adults in the ICU after heart surgery. About 144 participants will be randomly assigned to either BIS-guided sedation or standard care. The goal is to s…

This study tests whether using brain wave (EEG) monitoring to guide anesthesia during surgery can reduce postoperative delirium—a common side effect in older adults that can lead to lasting memory problems. Researchers will train anesthesia providers to interpret EEG data and adj…

This study tests whether ultrasound of the optic nerve sheath, a marker of brain pressure, can track brain swelling during ascending aortic surgery. Researchers will measure the optic nerve sheath diameter before, during, and after surgery in 134 adults undergoing this procedure.…

This study will follow 500 people with severe aortic stenosis who need a heart valve replacement. Researchers want to see if a dedicated Heart Valve Unit—a team of heart specialists working together—can reduce confusion, delirium, and memory problems that sometimes happen after t…

This study follows 120 malnourished adults undergoing major abdominal or pelvic cancer surgery to see how their gut function, nutrition, and risk of confusion (delirium) change in the first week after surgery. Researchers will also check if giving a natural chemical called seroto…

This study looks at whether waking up more slowly from anesthesia can help people recover better after lower-leg or foot surgery. Researchers will compare two groups of adults to see if a longer wake-up improves clear thinking, reduces pain, and shortens time in the recovery room…

This study tracks 120 adults having heart surgery to see if continuous monitoring of blood pressure and brain oxygen levels can predict problems like confusion, memory loss, or kidney injury afterward. Researchers will measure how long and how severely these levels drop during su…