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NEJM:脐带血干细胞移植中的脐带结肠炎综合征

2011-09-15 MedSci原创 MedSci原创

  亚历克斯·F·赫雷拉等 美国波士顿市布里格姆和妇女医院内科等   背景 腹泻是造血干细胞移植(HSCT)的一种常见并发症。HSCT后腹泻的重要原因包括急性移植物抗宿主病(GVHD)、感染及药物。移植和植入来自脐带血的造血干细胞后,我们观察到一种新的综合征,(表现为)培养阴性、对抗生素治疗有反应,无法归因于任何已知原因的腹泻。   方法 我们对2003年3月至2

  亚历克斯·F·赫雷拉等 美国波士顿市布里格姆和妇女医院内科等

  背景 腹泻是造血干细胞移植(HSCT)的一种常见并发症。HSCT后腹泻的重要原因包括急性移植物抗宿主病(GVHD)、感染及药物。移植和植入来自脐带血的造血干细胞后,我们观察到一种新的综合征,(表现为)培养阴性、对抗生素治疗有反应,无法归因于任何已知原因的腹泻。

  方法 我们对2003年3月至2010年3月间在我们中心进行脐带血HSCT的所有患者进行了一项回顾性队列研究。脐带结肠炎综合征定义为在这类患者中的一种持续性腹泻性疾病,不是由GVHD、病毒或细菌感染,或其他可识别原因导致。我们进一步分析了满足上述病例定义的患者的临床和组织病理学特征。

  结果 在我们中心接受脐带血HSCT的104例患者中,11例(10.6%)发生了脐带结肠炎综合征。满足该综合征的病例定义的一年卡普兰-迈耶累积概率为0.16。移植后发病时间为131天(中位数,范围88~314)。所有患者均对一个单独甲硝唑或甲硝唑联合一种氟喹诺酮类药物的10~14天经验性治疗疗程有反应。11例患者中的5例(45%)在停用抗生素后不久腹泻复发,并且所有有复发的患者均对重新开始的抗生素治疗有反应。组织学检查(显示),所有脐带结肠炎综合征患者均有慢性活动性结肠炎,11例患者中的7例(64%)存在肉芽肿性炎症。

  结论 在接受脐带血HSCT的患者中,脐带结肠炎综合征在临床和组织学上均与急性GVHD及其他腹泻原因不同,并且在这一患者人群中相对常见。在这类有不能归因于其他原因腹泻的患者中应考虑该综合征。

  (N Engl J Med 2011;365:815-24. September 1,2011)

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