[在患有输血依赖性沙拉西米亚的儿童接受全源造血干细胞移植后,移植功能不佳的风险因素]
1Department of Pediatrics, the First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China.
Zhonghua er ke za zhi = Chinese journal of pediatrics
|October 14, 2025
概括
在接受全源干细胞移植的输血依赖性沙拉西米亚儿童中,年龄较大,诊断到移植的时间间隔较长,以及移植后的CMV和BK病毒等感染是造成移植功能不佳的关键风险因素,导致生存率显著降低.
科学领域:
- 儿科血液学 儿科血液学
- 移植免疫学 移植免疫学
- 传染性疾病 传染性疾病
背景情况:
- 输血依赖性血症 (TDT) 是一种严重的遗传性血液疾病,需要终身输血.
- 全基性造血干细胞移植 (allo-HSCT) 提供一种潜在的治疗方法,但与诸如移植功能不佳 (PGF) 等并发症有关.
- 识别PGF的风险因素对于改善儿科TDT患者的治疗结果至关重要.
研究的目的:
- 在患有TDT的儿科患者中,在 allo-HSCT 后,研究与缺陷移植功能 (PGF) 相关的风险因素.
- 分析结果,特别是TDT患者的整体存活率,与具有良好的移植功能 (GGF) 患者相比,TDT患者患有PGF.
主要方法:
- 一项回顾性队列研究包括118名接受allo-HSCT的儿科TDT患者.
- 根据确定的诊断标准,患者被分为PGF和GGF组.
- 使用多变量逻辑回归和卡普兰-梅尔生存分析来确定风险因素和评估生存率.
主要成果:
- 15% (12.7%) 的患者发展了PGF,而87.3%的患者实现了GGF.
- 显著的PGF风险因素包括年龄≥10年,诊断到移植间隔≥6.7年,以及移植后的细胞巨血病毒 (CMV) 和BK病毒感染.
- 与GGF组 (90.2%) 相比,PGF组的4年整体生存率明显较低 (53.3%).
结论:
- 移植时的年龄,移植前的疾病持续时间和移植后的CMV和BK病毒感染是儿科TDT患者PGF的重要独立风险因素.
- 在TDT患者的allo-HSCT后,移植功能低下与整体存活率大幅降低有关.
- 这些发现强调了监测和管理这些风险因素的重要性,以改善移植结果.
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