Koppe U, et al. - Using a propensity score-matched cohort of patients from the UK Clinical Practice Research Datalink database, the researchers intended to quantify the relationship of bariatric surgery with later risk of acute kidney injury (AKI). They enrolled 2,643 patients with bariatric surgery and 2,595 patients without it. During long-term follow-up, bariatric surgery was seen to be associated with protective effects on AKI incidence. While experts suggested an increase in the risk of AKI within the first 30 days, the net impact noted was beneficial.