Comparing two ways to monitor blood pressure in surgical patients

This study tests how well different blood pressure monitors work during surgery. It might help if you are having surgery under general anesthesia and already need an arterial line.

This study tests how well a non-invasive blood pressure cuff matches the readings from an arterial line during laparoscopic surgery where you are tilted head-down. It looks for people who are already having this type of surgery with an arterial line.

This study tests a new device that measures blood pressure continuously without needing a needle in your artery. If you are having surgery and already need an arterial line, this device might offer a less invasive way to track your blood pressure during the procedure.

This study compares two places to put a small tube (arterial line) that measures your blood pressure during surgery. The goal is to see which location gives the most accurate readings to help guide your anesthesia care.

This study compares measuring blood pressure through an arm artery (radial) versus a leg artery (femoral) during heart surgery that uses a heart-lung machine. The goal is to see which method works better and is safer for patients.

This trial tests how well a standard arm blood pressure cuff works compared to a more precise arterial line during lung surgery when patients are on a special breathing tube. The goal is to see if the cuff is accurate enough to use instead of the arterial line.