Abstract
To study the mechanism associated with the development of symptomatic disseminated intravascular coagulation (DIC) after head injury. Plasma parameters were analyzed in patients with symptomatic (group A, n = 10) and asymptomatic DIC (group B, n = 15) induced by head injury, and in patients in whom DIC was caused by sepsis (group C, n = 10). Levels of fibrinogen, alpha2PI-plasmin complex and platelets in group A (58.1 mg/dL, 22.4 microg/mL, 16.0 x 10(4)/ mm3) and group B (98.3, 22.1, 16.6 x 10(4)) were comparable, but differed significantly from those in group C (297.4, 2.4, 6.3 x 10(4)). Significant differences were observed between groups A and B in both neutrophil-elastase (1,528 vs. 293 microg/ml) and D-dimer (42.1 vs. 17.6 microg/mL). Neutrophil elastase may be implicated in the development of symptomatic DIC after head injury, whose characteristics include "enhanced fibrinolysis with minimal platelet loss."
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