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Related Experiment Videos

Intraoperative autologous blood donation preserves red cell mass but does not decrease postoperative bleeding

R E Helm1, J D Klemperer, T K Rosengart

  • 1Department of Cardiothoracic Surgery, New York Hospital-Cornell Medical Center, New York, USA.

The Annals of Thoracic Surgery
|November 1, 1996
PubMed
Summary
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Intraoperative autologous donation (IAD) significantly reduces the need for allogeneic transfusions after open heart surgery by preserving red blood cell mass. However, IAD does not impact postoperative bleeding or the requirement for platelet or coagulation factor transfusions.

Area of Science:

  • Cardiovascular Surgery
  • Transfusion Medicine
  • Anesthesiology

Background:

  • Postoperative bleeding and transfusion are significant concerns after open heart surgery, increasing morbidity and costs.
  • The efficacy of intraoperative autologous donation (IAD) in mitigating these issues is debated.
  • This study aimed to clarify the impact of IAD on allogeneic transfusion and bleeding after cardiac operations.

Purpose of the Study:

  • To evaluate the effect of intraoperative autologous donation (IAD) on allogeneic transfusion rates and postoperative bleeding.
  • To determine if removing and reinfusing a calculated maximum volume of fresh autologous blood impacts transfusion needs and bleeding complications.

Main Methods:

  • Ninety patients undergoing coronary artery bypass grafting or valvular operations were prospectively randomized into an IAD group or a control group.

Related Experiment Videos

  • Calculated maximum volume IAD was performed in the IAD group; the control group did not undergo IAD.
  • Standardized transfusion guidelines were applied to all patients.

    • Main Results:

    • The IAD group had significantly higher postoperative hematocrits at 12 and 24 hours compared to the control group.
    • Allogeneic red blood cell transfusion decreased significantly in the IAD group (17% vs. 52%) with fewer units transfused per patient.
    • No significant differences were observed in chest tube output, excessive bleeding incidence, prothrombin time, or the need for platelet and coagulation factor transfusions between the groups.

    Conclusions:

    • Intraoperative autologous donation effectively preserves red blood cell mass in patients undergoing open heart surgery.
    • Routine IAD is justified for eligible patients to reduce allogeneic red blood cell transfusions.
    • IAD does not influence postoperative bleeding or the need for hemostatic factor transfusions, suggesting its primary benefit is red blood cell preservation.