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Blood transfusion is related to worse outcomes and the triggers for red blood cells transfusion are not well defined in cardiac surgery. Retrospective studies in cardiac surgery do not show benefits of red blood cell transfusion in reduction of morbidity and mortality in cardiac surgery. There are no prospective studies comparing outcomes between restrictive or liberal strategy in cardiac surgery.This study is a double-blind randomized study comparing clinical outcomes between two strategies of transfusion in cardiac surgery - liberal or restrictive.
Blood transfusion is commonly performed in patients submitted to cardiac surgery. However, there are many studies reporting adverse effects of this intervention and final data on benefits are not available. There are no prospective studies in cardiac surgery regarding red blood cell transfusions requirements. There are retrospective studies in cardiac surgery suggesting worse outcomes including higher rates of mortality in patients submitted to red blood transfusion. Hematocrit levels around 30% are usually recommended not evidence based. Our purpose is to prospectively evaluate two strategies of transfusion in 500 patients submitted to elective cardiac surgery: a liberal strategy - patients receive blood transfusion when hematocrit is lower than 30% since the intraoperative period until the ICU discharge; a restrictive strategy - patients receive blood transfusion only when hematocrit is lower than 24%.
Clinical outcomes, costs and quality of life will be compared.
Allocation: Randomized, Control: Active Control, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Outcomes Assessor), Primary Purpose: Treatment
Red blood cell transfusion, Red blood cell transfusion
InCor - Faculdade de Medicina da Universidade de Sao Paulo
Instituto do Coracao
Published on BioPortfolio: 2014-08-27T03:17:42-0400
A high proportion of patients having cardiac surgery receive red cell transfusions. Yet, the investigators do not know whether transfusions are beneficial and they may be associated with h...
In neonates and infants
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The area of hematology that is concerned with the transfusion of blood and blood components, and in prevention and treatment of adverse effects from BLOOD TRANSFUSION errors.
Reduction of blood viscosity usually by the addition of cell free solutions. Used clinically (1) in states of impaired microcirculation, (2) for replacement of intraoperative blood loss without homologous blood transfusion, and (3) in cardiopulmonary bypass and hypothermia.
Complications of BLOOD TRANSFUSION.
Repetitive withdrawal of small amounts of blood and replacement with donor blood until a large proportion of the blood volume has been exchanged. Used in treatment of fetal erythroblastosis, hepatic coma, sickle cell anemia, disseminated intravascular coagulation, septicemia, burns, thrombotic thrombopenic purpura, and fulminant malaria.
In utero transfusion of BLOOD into the FETUS for the treatment of FETAL DISEASES, such as fetal erythroblastosis (ERYTHROBLASTOSIS, FETAL).
Blood is a specialized bodily fluid that delivers necessary substances to the body's cells (in animals) – such as nutrients and oxygen – and transports waste products away from those same cells. In vertebrates, it is composed of blo...