脑梗死后出血性转化(HT)是指脑梗死后梗死区血管重新恢复血流灌注而导致的梗死区内继发性出血,是大面积脑梗死急性期常见的并发症。近年来急性脑梗死抗凝、溶栓治疗的普遍应用,使HT的风险增加,部分发生HT的患者出现神经功能恶化甚至死亡,给临床治疗带来风险。故而分析研究HT的危险因素对大面积脑梗死患者的治疗及预后有着积 Hemorrhagic transformation (HT) after cerebral infarction refers to the secondary hemorrhage in the infarct area caused by the resumption of blood flow perfusion in the infarct area after cerebral infarction. It is a common complication of acute cerebral infarction. In recent years, the common application of anticoagulant and thrombolytic therapy in acute cerebral infarction increases the risk of HT, and neurological deterioration and even death in some HT patients pose a risk to clinical treatment. Therefore, analysis of the risk factors for HT in patients with large-area cerebral infarction treatment and prognosis