Brain oxygen check could make carotid surgery safer

This study looks at 60 people having awake surgery to clear a blocked neck artery (carotid endarterectomy). During the procedure, the surgeon temporarily clamps the artery, which can reduce blood flow to the brain. Researchers will compare two ways to monitor brain blood supply: a direct pressure measurement from the artery and a non-invasive oxygen sensor on the forehead. The goal is to see if a big difference in oxygen levels between the two sides of the brain is linked to low pressure, which could help surgeons better protect the brain during surgery.