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大剂量甲氨蝶呤治疗儿童白血病血药浓度与疗效及安全性的相关性 被引量:14

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摘要 目的了解大剂量甲氨蝶呤(MTX)治疗儿童急性淋巴细胞白血病的疗效与不良反应,以及疗效、不良反应与血浆浓度的关系。方法回顾性分析78例次白血病患儿,根据MTX剂量分为3.0 g·(m2)-1组和5.0 g·(m2)-1组,根据血浆浓度分为排泄正常组和排泄延迟组(48 h MTX血浆浓度>1.0μmoL·L-1或72 h MTX血浆浓度>0.1μmoL·L-1称为排泄延迟),总结不良反应与疗效和血浆浓度关系。结果患儿血浆MTX浓度个体差异大,24,48h血浆浓度5.0 g·(m2)-1组高于3.0 g·(m2)-1组,72 h浓度两组没有明显差异。除胃肠道反应外,两组不良反应发生率差异无统计学意义。14.1%(11/78)例次发生排泄延迟,排泄延迟组不良反应发生率明显高于排泄正常组。结论大剂量MTX治疗儿童白血病安全有效。MTX排泄延迟与个体差异有关,与MTX剂量无关,排泄延迟与不良反应呈正相关。充分水化、碱化,监测血浆MTX浓度,根据排泄延迟与否调整个体化解救方案,是保证临床疗效和用药安全的关键。
作者 李辉 刘爱国
出处 《医药导报》 CAS 北大核心 2013年第5期605-608,共4页 Herald of Medicine
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