异基因造血干细胞移植治疗再生障碍性贫血16例临床观察

目的评价异基因造血干细胞移植（allo-HSCT）治疗再生障碍性贫血（AA）的疗效。方法1991至2006年共有12例重型AA（SAA）、4例慢性AA（CAA）患者接受allo-HSCT治疗，回顾性分析植入情况、并发症发生及移植疗效等。结果造血重建14例（87．50％），中性粒细胞绝对值（ANC）≥0．5×10^9／L和BPC≥120×10^9／L中位时间分别为移植后14（11～16）天、14（10～33）天；其中6例患者发生Ⅰ～Ⅱ度急性移植物抗宿主病（aGVHD），2例患者发生慢性局限型GVHD。16例AA患者中未植入死亡1例；移植排斥（GR）3例（18．75％），其中死亡1例、自身造血恢复1例；至随访截止，存活13例（81．25％），中位生存10（0．5～84）个月。结论allo-HSCT是治疗AA的有效方法之一，加强移植前后免疫抑制处理的强度，减少GR、GVHD的发生。

Allogeneic hematopoietic stem cell transplantation for 16 patients with aplastic anemia

OBJECTIVE: To evaluate the efficacy of allogeneic hematopoietic stem cell transplantation (allo-HSCT) for aplastic anemia (AA). METHODS: Twelve patients with severe AA (SAA) and 4 with chronic AA (CAA) received allo- HSCT. The effectiveness and complication were analyzed retrospectively. RESULTS: Hematopoiesis reconstitution was achieved 14 patients (87.50%). The median time of neutrophils reached to 0.5 x 10(9)/L and platelets reached to 20 x 10(9)/L were 14 (11 - 16) and 14 (10 - 33) days, respectively. Six cases developed grade I - II acute graft-versus-host diseaes (aGVHD), chronic local GVHD occurred in 2 patients. Graft rejection occurred in 3 cases. Thirteen cases survived with a median of 10 (0.5 - 84) months at the end of follow-up. Three cases died of unengraftment, graft rejection (GR) and interstitial pneumonia (IP) each. CONCLUSION: Allo-HSCT is an effective therapy for patients with AA. Enhancing immunosuppressive treatment for conditioning and GVHD prophylaxis may reduce the incidence of GR and GVHD.