急性放射病时出血综合征颇为明显,甚至导致动物死亡,但究竟为什么产生?其诱因至今虽不很清楚,但可归纳为下列三方面:(1)照射后骨髓巨核细胞及血管床血小板质与量的变化;(2)血液凝固系统障碍,尤其是微循环障碍,加重血凝过程的异常;(3)微血管血管壁内皮及各层损伤,致使微血管张力降低,造成渗血或出血。 Bleeding syndrome acute acute radiotherapy is quite obvious, and even lead to animal death, but what exactly? Although its causes are not yet clear, but can be summarized as the following three aspects: (1) irradiated irradiated bone marrow megakaryocytes and vascular bed platelet and (2) blood coagulation system disorders, especially microcirculation, aggravate the abnormalities of the blood coagulation process; (3) damage to the endothelium and layers of the microvascular wall, resulting in reduced capillary tension, resulting in bleeding or bleeding.