The Impact of an Algorithm-Guided Management of Preoperative Anemia in Perioperative Hemoglobin Level and Transfusion of Major Orthopedic Surgery Patients
Figure 4
Pre- and postoperative Hb levels in anemic patients. Hb 1: first preoperative Hb-measurement in the preoperative outpatient clinic up to 3 months before surgery (Hb-median: Group I (): 12.15 g/dL, Group II (): 12.45 g/dL). Hb 2: Hb level 0–3 days before surgery (Hb-median: Group I: 11.95 g/dL, Group II: 13.0 g/dL ()). Hb 3: first postoperative Hb level (Hb-median: Group I: 9.45 g/dL, GroupII: 10.60 g/dL. Hb 4: second postoperative Hb level (Hb-median: Group I: 9.0 g/dL, Group II: 9.75 g/dL ()) 0–7 days after surgery. ESA: erythropoiesis stimulating agent, CI: confidence interval, IQR: interquartile range.
