Recent achievements and future developments in neonatal cardiopulmonary bypass

Area of Science:

• Cardiovascular Surgery
• Neonatal Medicine
• Anesthesiology

Background:

• Neonatal cardiopulmonary bypass circuits have been progressively reduced in size, enabling minimally invasive procedures.
• Current transfusion guidelines are insufficient for neonates, necessitating advanced monitoring strategies.

Purpose of the Study:

• To review advancements in neonatal cardiopulmonary bypass and associated monitoring techniques.
• To highlight the need for individualized transfusion strategies and improved hemostatic management in neonates.

Main Methods:

• Discussion of normothermic bypass, deep hypothermic circulatory arrest, and selective antegrade cerebral perfusion.
• Review of heparin concentration monitoring and viscoelastic assays for hemostatic management.
• Examination of oxygen availability monitoring and myocardial protection strategies.

Main Results:

• Smaller bypass circuits facilitate bloodless surgery in neonates.
• Normothermic bypass and selective antegrade cerebral perfusion are increasingly utilized.
• Challenges remain in validating oxygen monitoring and demonstrating superiority of cold cardioplegia.

Conclusions:

• Individualized transfusion schemes based on tissue oxygen monitoring are essential.
• Improved hemostatic management using heparin assays and viscoelastic tests is critical.
• Further research is needed to validate monitoring techniques and optimize myocardial protection in neonates.