This study is looking at how the type of blood flow during cardiopulmonary bypass (a machine that takes over for your heart and lungs during surgery) affects your body after cardiac surgery. When you have heart surgery, a machine called a cardiopulmonary bypass machine helps circulate your blood. This machine can create blood flow that is either steady (non-pulsatile) or more like your natural heartbeat (pulsatile). Researchers want to see if one type of blood flow is better for your organs, specifically looking at endothelial function (how well the lining of your blood vessels works) and acute kidney injury (sudden kidney damage). You may be able to join if you are between 50 and 70 years old and are scheduled for elective cardiac surgery with cardiopulmonary bypass. The study will measure endothelial function from when you are admitted to the intensive care unit after surgery until you leave the hospital, up to 30 days.

Study design

This is an observational study with a planned enrollment of 66 participants. It will compare patients who receive pulsatile or non-pulsatile cardiopulmonary bypass during cardiac surgery.

What's involved

Not specified in the trial record.

Compensation

Not stated in the trial record.

Follow-up

Participants will be followed from intensive care unit admission after surgery to hospital discharge, up to 30 days.

AI-generated from the public study record. Only the study team can confirm whether you're eligible — confirm details with them before making decisions.