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Related Concept Videos

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Blood Transfusion

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Blood transfusion is a critical medical procedure that saves lives and treats various medical conditions. It involves transferring blood from a donor to a recipient. This process requires a thorough understanding of the ABO blood group system and its associated antigens and antibodies.
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A blood transfusion is a medical procedure used to replace blood lost due to injury, surgery, or to treat conditions such as anemia or cancer. During a transfusion, donor blood is...
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Blood transfusion is a therapeutic measure to restore the blood volume after extensive blood loss due to an accident or a medical procedure. Blood transfusion involves drawing a certain amount of blood from a suitable donor and infusing it into the recipient.
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Bioavailability studies are essential for evaluating a drug's therapeutic efficacy and understanding its absorption patterns under various physiological conditions. Conducting such studies on target patient populations provides more relevant data by simulating real-world disease states. However, practical challenges often necessitate the use of young, healthy adult volunteers as study subjects.Patients may exhibit altered drug absorption patterns due to the effects of the disease itself,...
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The Red Blood Cell-Improving Transfusions for Chronically Transfused Recipients (RBC-IMPACT) study: protocol

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This study investigated factors influencing red blood cell (RBC) transfusion effectiveness in chronically transfused patients. Understanding donor, component, and recipient variability is key to optimizing transfusion outcomes and safety.

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Area of Science:

  • Hematology
  • Transfusion Medicine
  • Genetics

Background:

  • Donor, component, and recipient variability impacts transfusion outcomes.
  • Combined effects of these factors on transfusion effectiveness remain unclear.
  • Chronic transfusion therapy is crucial for managing conditions like thalassemia and sickle cell disease (SCD).

Purpose of the Study:

  • To investigate red blood cell (RBC) survival after transfusion in chronically transfused patients.
  • To assess acute changes in serum iron levels post-transfusion.
  • To identify predictive variables for optimizing RBC effectiveness and safety.

Main Methods:

  • Multi-center longitudinal study (RBC-IMPACT) in the US and Brazil.
  • Collected blood samples pre- and post-transfusion to measure hemoglobin, iron, and hemolysis markers.
  • Utilized single nucleotide polymorphism (SNP) array typing to analyze genetic variants in donors and recipients.

Main Results:

  • RBC survival was evaluated using changes in hemoglobin A (HbA) per day for SCD patients and hemoglobin (Hb) per day for thalassemia patients.
  • Bilirubin levels were assessed for both patient groups to indicate hemolysis.
  • The primary outcome for iron assessment was the change in serum iron from pre-transfusion to two hours post-transfusion.

Conclusions:

  • This study provides a detailed evaluation of factors influencing RBC transfusion effectiveness.
  • Findings will help optimize RBC effectiveness and safety in chronically transfused populations.
  • Understanding donor-recipient genetic interactions is crucial for personalized transfusion strategies.