Anticoagulation and hemostasis on extracorporeal membrane oxygenation

Area of Science:

• Critical care medicine
• Pediatric cardiology
• Hematology

Background:

• Extracorporeal membrane oxygenation (ECMO) is associated with significant hemostatic challenges, including both bleeding and thrombotic complications.
• Effective management requires a delicate balance between anticoagulation to prevent clotting and hemostatic transfusions to mitigate bleeding.
• Current evidence guiding these interventions is limited, necessitating further research.

Approach:

• This review synthesizes current understanding of hemostatic alterations during ECMO.
• It examines the risks and benefits of anticoagulation and transfusion strategies.
• It highlights the need for evidence-based guidelines.

Key Points:

• Anticoagulation is standard in pediatric ECMO, but optimal strategies remain undefined.
• Observational data suggest anti-Xa-guided anticoagulation may decrease bleeding without increasing clotting.
• Platelet transfusions, often used to prevent bleeding, are paradoxically linked to increased bleeding and clotting risks.

Conclusions:

• Balancing bleeding and thrombotic risks in ECMO patients is critical.
• Prospective randomized trials are essential to establish optimal anticoagulation and transfusion protocols.
• Further research is needed to refine ECMO hemostasis management.