Blood test study for heart surgery patients

This study checks blood and other lab “biomarkers” during the time before and after major surgeries to see if they can help guide perioperative care. You might be eligible if you are having certain planned heart, lung, GI, or blood-vessel surgeries and can give informed consent.

This trial studies patterns in immune cells (neutrophils) in very young children who undergo heart surgery using a heart-lung machine. The goal is to better understand and potentially reduce lung injury after surgery.

This study measures how active white blood cells and inflammation are during complex heart surgery using a heart-lung machine. It may help doctors better understand what triggers inflammation during surgery and how to improve care.

This study follows people after major surgery to see what predicts heart and blood vessel problems later. It does not test a new drug; it mainly collects health information to help clinicians reduce risk.

This study looks at certain health markers (called biomarkers) in your blood before surgery. The goal is to see if these markers can help predict how well you recover after non-cardiac surgery, which might improve care for future patients.

This trial checks a blood test called NT-proBNP (a marker related to heart stress) to help predict outcomes after planned surgery. It may help doctors identify which patients are at higher risk so they can tailor monitoring and care.