SURGERY COMPLICATIONS

This study is for women under 75 who need heart bypass surgery for three blocked arteries. It compares two types of grafts for the second most important artery: a leg vein harvested with a special 'no-touch' technique versus a wrist artery. The goal is to see which graft stays op…

This study tests whether giving intravenous iron to teens with iron deficiency before spinal fusion surgery can lower their need for blood transfusions. About 120 participants aged 10-19 will receive either IV iron or a placebo. The goal is to see if correcting iron levels improv…

This study compares light versus deep general anesthesia in older adults (65+ or Indigenous 55+) having major surgery. The goal is to see if lighter anesthesia reduces delirium—sudden confusion—and long-term memory problems. About 2,766 participants will be randomly assigned to o…

This study explores whether measuring heart rate variability—the natural ups and downs in heartbeat timing—can help detect complications like leaks or abscesses after planned colorectal surgery. Researchers will monitor patients for a week after surgery and compare heart rate pat…

This study tests whether taking CoQ10 and glutathione before and after heart surgery can prevent acute kidney injury, a common complication. 242 adults scheduled for elective heart surgery will receive either the supplements or a placebo. The goal is to see if these mitochondrial…

This study tests a home-based program of exercise, nutrition advice, and breathing exercises before surgery to see if it reduces disability three months after the operation. Half of the 902 participants will follow the program using an online platform, while the other half will r…

This study tests whether fluvoxamine, a drug used for depression, can help prevent delirium (sudden confusion) in older adults after non-cardiac surgery. About 46 people having elective surgery that requires at least a 2-day hospital stay will take part. The main goal is to see i…

This study aims to see if wearable devices like Fitbit or Apple Watch can help predict complications and recovery in patients undergoing surgery or treatment for chronic diseases or cancer. Researchers will use machine learning to analyze data from 2,400 adults. The goal is to ca…

This study will follow 50,000 adults having planned non-cardiac surgery at two hospitals in Sweden. Researchers want to see if how much physical activity people report doing before surgery can help predict complications like infections, heart problems, or death. The goal is to fi…

This study follows 15,000 adults aged 45+ (or 65+ without risk factors) who are having same-day noncardiac surgery. The goal is to learn how often heart problems and other complications happen after these surgeries, and to create tools that help doctors predict and reduce risks. …

This study follows 150 adults for one year after ankle arthroscopy to record any complications that arise. Participants will be checked by their surgeon and physical therapist at 15 days, 3 months, 6 months, and 1 year after surgery. They will also fill out questionnaires and do …