The impact of perioperative hypotension is a hot issue in anesthesia. In adults, intraoperative hypotension is associated with poor outcome, including an increased risk of acute kidney injury. In contrast, in children, there are very few studies exploring any associations between intraoperative hypotension and outcome. In this issue, Schacham et al. report the results from a retrospective cohort study aiming to determine the relationship between intraoperative hypotension and postoperative acute kidney injury in children having noncardiac surgery. They also sought to define any thresholds of hypotension associated with the kidney injury.

Hypotension was defined both in terms of absolute hypotension, the lowest intraoperative blood pressure, recorded for a cumulative period of 5 min; and relative hypotension, assessed as the percentage fall from preoperative baseline, also over a cumulative period of 5 min. Acute kidney injury was defined using standard criteria based on changes in serum creatinine concentrations. The...

You do not currently have access to this content.