Hung KC, et al. - Researchers examined an obese Asian population after laparoscopic bariatric surgery to assess how preoperative anemia influence kidney function in this population. Among 341 patients with obesity undergoing bariatric surgery, patients with preoperative estimated glomerular filtration rates ≥ 90 mL/min/1.73 m², were followed for 1 year and were assigned to one of two groups: anemia or non-anemia group. Outcomes revealed no negative influence of preoperative anemia on kidney function following laparoscopic bariatric surgery during the 12-month follow-up. Preoperative correction of anemia may be recommended in view of the potential adverse impact of anemia on postoperative weight loss.