Reduction of homologous blood transfusion in reoperative valve surgery

Area of Science:

• Cardiovascular Surgery
• Transfusion Medicine
• Anesthesiology

Background:

• Reoperative cardiac valve surgery often requires significant blood transfusions.
• Homologous blood transfusions carry inherent risks and increase healthcare costs.
• Optimizing transfusion strategies is crucial for patient safety and resource management.

Purpose of the Study:

• To evaluate the impact of a clinical strategy aimed at reducing homologous blood transfusions in reoperative cardiac valve surgery.
• To compare transfusion requirements between patients who underwent surgery before and after the implementation of the new strategy.

Main Methods:

• Retrospective analysis of 126 adult patients undergoing reoperative cardiac valve surgery from April 1979 to October 1993.
• Patients were divided into two groups based on surgery date: before January 1990 (Group 1) and after January 1990 (Group 2).
• Group 2 implemented a strategy including autologous blood predonation, reduced heparin, higher transfusion thresholds, and autotransfusion.

Main Results:

• Homologous blood transfusion rates decreased from 93.0% in Group 1 to 35.6% in Group 2.
• Average homologous blood volume transfused per patient reduced from 3785 ml in Group 1 to 2985 ml in Group 2.
• The need for fresh blood transfusions was notably lower in Group 2 (seven patients).

Conclusions:

• The implemented clinical strategy was highly effective in reducing homologous blood transfusions for reoperative cardiac valve surgery.
• This strategy led to a significant decrease in both the number of patients receiving allogeneic blood and the volume transfused.
• These findings support the adoption of similar transfusion-reduction strategies in cardiac surgery settings.