Abstract
Defĩbrase was used for anticoagulation in dogs during extracorporeal perfusion up to 6 hours with a Travenol membrane oxygenator or a Pall filter. The anticoagulation effect was adequate. The already low fibrinogen concentration became unmeasurable, the platelet count decreased, and the fibrin(ogen) degradation products increased during the perfusion. Histological examination showed platelets and white blood cells on the membranes. Perfusion pressure and blood flow were stable during the experiments, and no bleeding, thromboembolism or other adverse side-effects were noted. Defibrase might be an alternative to heparin for anticoagulation during extra-corporeal circulation.
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