Acute normovolemic hemodilution. 2005

Terri G Monk
Department of Anesthesiology, Duke University Medical Center, North Carolina 27705, USA. monk0007@notes.duke.edu

BACKGROUND The inherent risks of blood transfusion have led to concerted efforts to find alternatives to allogeneic blood transfusion. Among these alternatives are supplementation with iron and treatment with erythropoietin, autologous pre-donation before major elective surgery, intraoperative blood salvage (particularly for emergency cases or when major blood loss is unanticipated), acute normovolemic hemodilution, and artificial blood substitutes. METHODS Review of pertinent English-language literature. RESULTS Autologous pre-donation of the patient's own blood, even if supplemented with iron and erythropoietin, is increasingly out of favor for several reasons. Autologous pre-donation is an added out-of-pocket expense for the patient. The major cause of incompatible blood transfusion, namely clerical error, is not eliminated. Moreover, autologous pre-donated blood is not released to the general blood supply; therefore, autologous blood that is not returned to the patient by infusion is wasted. Acute normovolemic hemodilution is a safe alternative that eliminates the risk of mistransfusion, minimizes the shed red cell mass when bleeding occurs, and reduces the risk of perioperative transfusion as shown in patients undergoing radical prostatectomy. CONCLUSIONS Acute normovolemic hemodilution achieves equivalent outcomes at lower cost compared with autologous pre-donation. Patient safety is increased, and if pharmacologic strategies are combined with acute normovolemic hemodilution, allogeneic blood transfusion may be eliminated entirely.

UI MeSH Term Description Entries
D010952 Plasma Substitutes Any liquid used to replace blood plasma, usually a saline solution, often with serum albumins, dextrans or other preparations. These substances do not enhance the oxygen- carrying capacity of blood, but merely replace the volume. They are also used to treat dehydration. Blood Expanders,Plasma Volume Expanders,Expanders, Blood,Expanders, Plasma Volume,Substitutes, Plasma,Volume Expanders, Plasma
D001802 Blood Substitutes Substances that are used in place of blood, for example, as an alternative to BLOOD TRANSFUSIONS after blood loss to restore BLOOD VOLUME and oxygen-carrying capacity to the blood circulation, or to perfuse isolated organs. Artificial Blood,Artificial Erythrocytes,Artificial Hemoglobin,Blood, Artificial,Erythrocyte Substitutes,Hemoglobin Substitutes,Red Cell Substitutes,Artificial Bloods,Artificial Erythrocyte,Artificial Hemoglobins,Blood Substitute,Bloods, Artificial,Cell Substitute, Red,Cell Substitutes, Red,Erythrocyte Substitute,Erythrocyte, Artificial,Erythrocytes, Artificial,Hemoglobin Substitute,Hemoglobin, Artificial,Hemoglobins, Artificial,Red Cell Substitute,Substitute, Blood,Substitute, Erythrocyte,Substitute, Hemoglobin,Substitute, Red Cell,Substitutes, Blood,Substitutes, Erythrocyte,Substitutes, Hemoglobin,Substitutes, Red Cell
D001810 Blood Volume Volume of circulating BLOOD. It is the sum of the PLASMA VOLUME and ERYTHROCYTE VOLUME. Blood Volumes,Volume, Blood,Volumes, Blood
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D065227 Transfusion Reaction Complications of BLOOD TRANSFUSION. Included adverse reactions are common allergic and febrile reactions; hemolytic (delayed and acute) reactions; and other non-hemolytic adverse reactions such as infections and adverse immune reactions related to immunocompatibility. Delayed Hemolytic Transfusion Reaction,Acute Hemolytic Transfusion Reaction,Blood Transfusion-Associated Adverse Reactions,Delayed Serologic Transfusion Reaction,Febrile Non-Hemolytic Transfusion Reaction,Hemolytic Transfusion Reaction,Hypotensive Transfusion Reaction,Post-Transfusion Purpura,Posttransfusion Purpura,TAGHD,Transfusion-Associated Allergic Reaction,Transfusion-Associated Circulatory Overload,Transfusion-Associated Dyspnea,Transfusion-Associated Graft Vs. Host Disease,Transfusion-Transmitted Infection,Allergic Reaction, Transfusion-Associated,Blood Transfusion Associated Adverse Reactions,Circulatory Overload, Transfusion-Associated,Circulatory Overloads, Transfusion-Associated,Dyspnea, Transfusion-Associated,Febrile Non Hemolytic Transfusion Reaction,Hemolytic Transfusion Reactions,Infection, Transfusion-Transmitted,Post Transfusion Purpura,Posttransfusion Purpuras,Purpura, Post-Transfusion,Purpura, Posttransfusion,Reaction, Hemolytic Transfusion,Reaction, Hypotensive Transfusion,Reactions, Hemolytic Transfusion,Transfusion Associated Allergic Reaction,Transfusion Associated Circulatory Overload,Transfusion Associated Dyspnea,Transfusion Associated Graft Vs. Host Disease,Transfusion Reaction, Hemolytic,Transfusion Reaction, Hypotensive,Transfusion Reactions,Transfusion Reactions, Hemolytic,Transfusion Reactions, Hypotensive,Transfusion Transmitted Infection,Transfusion-Associated Circulatory Overloads,Transfusion-Transmitted Infections

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