D-二聚体 (D- Dimer)是交联纤维蛋白在纤溶酶作用下所产生的一种特异性纤维蛋白降解产物。作为反映交联纤维蛋白降解的特异性分子标志物 ,血浆 D-Dimer含量增高表明体内纤维蛋白血栓形成和纤维蛋白溶解发生。我们对 2 4例初发急性白血病患者血浆中的 D- Dimer阳性结果及动态检 D-dimer (D-dimer) is a specific fibrin degradation product of crosslinked fibrin produced by plasmin. As a specific molecular marker reflecting the degradation of cross-linked fibrin, an increase in plasma D-Dimer indicates that in vivo fibrin thrombosis and fibrinolysis occur. We have 24 cases of newly diagnosed acute leukemia in patients with plasma D-Dimer positive results and dynamic test