Preoperative endothelial function and long-term cardiovascular events in patients undergoing cardiovascular surgery

We recently reported that preoperative endothelial dysfunction [i.e., reactive hyperemia index (RHI) ≤ 1.64] predicted short-term postoperative adverse events in patients undergoing cardiovascular surgery. However, the relationship between preoperative RHI and long-term cardiovascular risk in these patients is unclear. A total of 195 patients with at least 1-year follow-up who underwent cardiovascular surgery were included. Preoperative...