Hematic Antegrade Repriming: A Reproducible Method to Decrease the Cardiopulmonary Bypass Insult.

Area of Science:

• Cardiovascular Surgery
• Anesthesiology
• Biomedical Engineering

Background:

• Cardiopulmonary bypass (CPB) priming with crystalloid solutions causes hemodilution, increasing transfusion needs and cognitive impairment risk.
• Existing retrograde autologous priming (RAP) techniques for CPB have variable practices, limiting their evidence and benefits.
• Microbubbles persist despite crystalloid priming, posing a risk during CPB procedures.

Purpose of the Study:

• To introduce hematic antegrade repriming as a standardized and effective CPB priming method.
• To reduce transfusion requirements, microemboli, and inflammatory responses associated with CPB.
• To improve patient recovery outcomes following CPB procedures.

Main Methods:

• Description of a novel hematic antegrade repriming technique for CPB circuits.
• Application of the method across various commercially available CPB circuits.
• Evaluation of the technique's impact on hemodilution, transfusion needs, and inflammatory markers.

Main Results:

• Hematic antegrade repriming is presented as an easy and reliable method for CPB.
• The technique effectively decreases transfusion requirements and reduces emboli and inflammatory responses.
• Potential for cost reduction and improved postoperative recovery in CPB patients.

Conclusions:

• Hematic antegrade repriming offers a promising alternative to standard CPB priming.
• This method addresses limitations of crystalloid priming and current RAP techniques.
• Widespread adoption could enhance CPB patient safety and outcomes.