What we are studying
Recent studies have shown that a simple procedure performed called “remote ischemic preconditioning” just before surgery may help reduce the possible damage to the heart, kidneys and other organs that may happen during surgery. Remote ischemic preconditioning is done by inflating a balloon (very similar to a standard blood pressure cuff) on the leg until it blocks blood flow for a few minutes. The cuff is then deflated and the blood flow resumes. The process is then repeated up to three times. This procedure causes the body to increase its natural defense systems that help protect it from damage during heart surgery. Although remote ischemic preconditioning appears promising, there remain several unanswered questions about how to best use it. This research trial will help determine the best way to perform remote ischemic preconditioning.