Position during surgery and monitoring of anesthesia

This study tests whether adding a visual display of brain wave patterns (called a density spectral array) to a standard depth-of-sleep monitor helps the anesthesia team keep you at the right sleep level during surgery. You will be randomly assigned to receive either the standard monitor alone or the standard monitor plus the extra display.

This study tests whether carefully monitoring how deep your anesthesia is during spinal surgery can help older adults recover better and think more clearly afterward.

This study examines how well a brain-monitoring device (called a bispectral index monitor) tracks your level of consciousness during surgery when you receive anesthesia through an IV. The findings may help doctors better manage anesthesia and keep you safer during procedures.

This study tests a new way to monitor anesthesia depth by continuously analyzing exhaled breath, which may reduce the need for invasive monitoring. It could help patients avoid too much or too little anesthesia during surgery.

This trial studies how pain levels change during planned brain surgery while you are fully asleep, using special brain-monitoring recordings. The goal is to better understand acute pain signals during general anesthesia, which may help anesthesiologists manage pain more effectively.

This trial tests whether extra brain monitoring during and after major abdominal surgery helps older patients recover better. The monitoring tracks brain function to guide anesthesia and care, which might reduce confusion or other problems after surgery.