Bivalirudin in Extracorporeal Membrane Oxygenation

Extracorporeal membrane oxygenation (ECMO) is a mechanical support treatment modality used in patients with refractory cardiac and/or pulmonary failure. Bleeding and thrombotic complications associated with ECMO are inherent concerns that require careful management. Anticoagulation optimization may help mitigate these risks by providing more adequate therapeutic anticoagulation and lessen the bleed risk. Heparin, the most used anticoagulant, carries concerns for heparin-induced thrombocytopenia and possible resistance given its dependence on cofactors and circulating proteins to exert its pharmacologic effect. In contrast, bivalirudin, a direct thrombin inhibitor, exerts its effect independent of cofactors or plasma proteins, and possesses thrombin-binding and metabolism features that may confer advantages in ECMO management. This review of the evidence for bivalirudin utilization in ECMO suggests favorable outcomes in circuit-related thrombosis, bleeding, and dosing reliability. In addition, blood product utilization, circuit interventions, and success in ECMO decannulation and survival were positive findings associated with bivalirudin that merit consideration. Common questions and concerns relative to bivalirudin utilization, including laboratory monitoring, utilization in low-flow states, dosing considerations in renal replacement therapy, reversibility, and cost are also discussed in this review. Moreover, this review suggests that bivalirudin utilization presents the opportunity for ECMO management simplification.

Abstract sourced from PubMed (NCBI) for the cited record. See the original publication for the authoritative version.

This review evaluates bivalirudin, a cofactor-independent direct thrombin inhibitor, as an ECMO anticoagulant, reporting benefits for thrombosis, hemorrhage, and dosing consistency, plus positive results for blood product use, circuit interventions, and decannulation, while discussing monitoring, low-flow dosing, renal replacement therapy, reversal, and cost.

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