Bordeaux University and Bordeaux University Hospital, Pediatric Oncology and Hematology Unit, 33076 Bordeaux, France.
Pediatr Blood Cancer. 2010 Jul 1;54(7):927-33. doi: 10.1002/pbc.22515.
To determine the epidemiology of myeloid leukaemia (ML) in children with Down syndrome (DS) and the efficacy of two approaches, low-dose cytarabine-based regimen (LDC) and standard-dose intensive chemotherapy (SD).
All children with Down syndrome aged from 2 months to 15 years with ML/myelodysplasia registered in the French registry between January 1990 and December 2003 were included.
Forty-four patients were included. The median age was 1.75 years. The French-America-British subtypes were as follows: M7: 24, M0: 6, M2: 5, M6: 2. Forty-three patients were treated with curative prospect, 20 patients with LDC regimen and 22 according to SD protocols, 1 was given the LDC regimen plus autologous stem-cell transplantation. The event-free survival (EFS) and overall survival (OS) at 5 years were 64.4% and 76.8%. At 5 years, OS in LDC and SD groups were 65% and 85.9% (P = 0.08). EFS were 45% and 80.3% respectively (P < 0.01).
Children with DS can adequately tolerate SD chemotherapy with a significant superiority of EFS relative to LDC. We suggest that higher levels of cure can be obtained in DS-ML with SD chemotherapy including cytarabine and anthracyclines.
确定唐氏综合征(DS)患儿中髓性白血病(ML)的流行病学,以及两种方法(低剂量阿糖胞苷为基础的方案[LDC]和标准剂量强化化疗[SD])的疗效。
所有年龄在 2 个月至 15 岁之间,在法国注册处登记的患有 ML/骨髓发育不良的唐氏综合征患儿均纳入本研究。
共纳入 44 例患儿。中位年龄为 1.75 岁。法国-美国-英国(FAB)分型如下:M7:24 例,M0:6 例,M2:5 例,M6:2 例。43 例患儿接受了治愈性治疗,20 例患儿采用 LDC 方案,22 例患儿采用 SD 方案,1 例患儿采用 LDC 方案联合自体干细胞移植。5 年时无事件生存(EFS)和总生存(OS)率分别为 64.4%和 76.8%。5 年时,LDC 和 SD 组的 OS 分别为 65%和 85.9%(P = 0.08)。EFS 分别为 45%和 80.3%(P < 0.01)。
DS 患儿能够很好地耐受 SD 化疗,EFS 显著优于 LDC。我们建议,在包括阿糖胞苷和蒽环类药物的 SD 化疗中,DS-ML 可获得更高的治愈率。