The Impact of an Algorithm-Guided Management of Preoperative Anemia in Perioperative Hemoglobin Level and Transfusion of Major Orthopedic Surgery Patients

<table>Retrospective before-after study: Group I underwent conventional preoperative procedures without iron-/ESA-substitution before algorithm-implementation. Group II underwent preoperative diagnostic algorithm (Thomas-plot) with preoperative iron-/ESA-substitution. ESA: erythropoiesis stimulating agent. </table>

Anemia

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Figure 2: The Impact of an Algorithm-Guided Management of Preoperative Anemia in Perioperative Hemoglobin Level and Transfusion of Major Orthopedic Surgery Patients 

Figure 2 | The Impact of an Algorithm-Guided Management of Preoperative Anemia in Perioperative Hemoglobin Level and Transfusion of Major Orthopedic Surgery Patients 