Perioperative Covert Stroke in Patients Undergoing Non-Cardiac Surgery (NeuroVISION): A Prospective Cohort Study

The NeuroVISION study, a multicenter prospective cohort study, investigated the incidence and impact of covert strokes—acute brain infarcts detected by MRI without clinical symptoms—in patients aged 65 and older undergoing non-cardiac surgery. Among 1,114 participants, 7% experienced a covert stroke postoperatively. These events were associated with a twofold increase in