近年来随着新的化疗药物不断问世、联合化疗方案设计不断改善和支持治疗手段的增多 ,使急性白血病的缓解率有了进一步提高。目前 6 0岁以下成人初治急性非淋巴细胞白血病经联合化疗可使 70 %～ 80 %患者达到完全缓解 (ＣＲ) ,成人急性淋巴细胞白血病ＣＲ率可达 6 4%～ 87% ,但? In recent years, with the constant emergence of new chemotherapeutic drugs, the continuous improvement in the design of combined chemotherapy regimens, and the increase in supportive treatment measures, the remission rate of acute leukemia has been further improved. At present, the initial treatment of acute non-lymphocytic leukemia in patients younger than 60 years can achieve complete remission (CR) in 70% to 80% of patients with acute nonlymphocytic leukemia. The CR rate of adult acute lymphoblastic leukemia can reach 64% to 87%.