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Introduction: Anemia is a major problem in Intensive care units (ICU). Many patients are exposed to anemia during their stay in ICU. Many factors contribute to anemia such as repeated phelipotmies, associated chronic health problems, the devastating disease that admits the patient to ICU, sepsis. The aim of this study is to evaluate the effect of blood transfusion on SVO2 in anemic patients in intensive care units and the possibility of using it as a guide for blood transfusion in ICU.

Methods: This study was carried out in Tanta University Hospitals in surgical intensive care unit for one year on critically ill intensive care unit (ICU) patients with anemia (Hb< 7g/dl). Forty patients were included in the study. Patients were divided retrospective into two groups according to central venous oxygen saturation (ScvO2) before blood transfusion; Group A: ScvO2 equal or more than 70%. and Group B: ScvO2 less than 70%. Then 15 min after completion of the transfusion, similar sample was taken, and the blood gas analysis was repeated.

Results: As regard hemoglobin and hematocrit value, blood transfusion provided a significant and approximately similar increase for all patients in both groups. There was no significant difference as regard heart rate, central venous pressure, MAP, SaO2 and lactate in the two groups before and after blood transfusion.

Conclusions: Central venous oxygen saturation can be used as adjuvant clinical tool for blood transfusion.