Anticoagulation Management in V-V ECMO Patients: A Multidisciplinary Pragmatic Protocol

Area of Science:

• Cardiovascular Research
• Hematology
• Critical Care Medicine

Background:

• Extracorporeal membrane oxygenation (ECMO) presents complex challenges in managing thrombosis and bleeding risks.
• Current anticoagulation management in ECMO lacks high-quality data, leading to significant practice variability.
• This review addresses coagulation monitoring and proposes a management strategy from a high-volume ECMO center.

Purpose of the Study:

• To review current anticoagulation options and monitoring methods for ECMO.
• To propose a pragmatic, multi-faceted approach to coagulation management in ECMO patients.
• To highlight the need for personalized anticoagulation strategies.

Main Methods:

• Conducted a PubMed literature search using keywords: "anticoagulation," "coagulation assays," "ECMO," "ELSO," and "ISTH."
• Reviewed available anticoagulation agents and monitoring techniques relevant to ECMO.
• Described the routine practice of anticoagulation and monitoring at a high-volume ECMO Referral Centre.

Main Results:

• No single coagulation test can reliably predict bleeding or thrombotic risk in ECMO patients.
• Current literature and practice reveal a wide variation in anticoagulation management protocols.
• A comprehensive laboratory assessment is necessary for effective monitoring.

Conclusions:

• A tailored, individualized anticoagulation regimen is mandatory for ECMO patients.
• Proposed monitoring includes a combination of tests: anti-Xa, activated partial thromboplastin time (aPTT), activated clotting time (ACT), viscoelastic tests, antithrombin (AT) levels, platelet count, fibrinogen, and Factor XIII (FXIII) levels.
• Personalized anticoagulation management requires integrating results from multiple laboratory assays.