NEJM:肾脏疾病和2型糖尿病患者中的红细胞生成反应与转归

2010-09-20 MedSci原创 MedSci原创

  斯科特·D·所罗门等 美国波士顿市布里格姆和妇女医院心血管科等   背景 在有慢性肾疾病的患者中,比较较低与较高血红蛋白目标值的红细胞生成刺激剂(ESA)非安慰剂对照试验表明,以达到较低的血红蛋白范围为目标,有可能避免ESA相关性危险。然而,基于目标的策略受到每例患者个体化造血反应的混杂影响。   方法 我们在1872例有慢性肾疾病和2型糖尿病的患者中,评估了在2次基于体重的给药后,患

  斯科特·D·所罗门等 美国波士顿市布里格姆和妇女医院心血管科等

  背景 在有慢性肾疾病的患者中,比较较低与较高血红蛋白目标值的红细胞生成刺激剂(ESA)非安慰剂对照试验表明,以达到较低的血红蛋白范围为目标,有可能避免ESA相关性危险。然而,基于目标的策略受到每例患者个体化造血反应的混杂影响。

  方法 我们在1872例有慢性肾疾病和2型糖尿病的患者中,评估了在2次基于体重的给药后,患者对阿法达贝泊汀(darbepoetin alfa)的初始血红蛋白反应,4周后达到的血红蛋白水平,后续阿法达贝泊汀剂量,以及转归之间的关系。我们将对阿法达贝泊汀的初始疗效反应差(发生于 471例病人)规定为,在给予最初2剂标化剂量的药物后,血红蛋白水平的变化百分率为最低四分位数(<2%)。

  结果 在12周时和随访期间,对阿法达贝泊汀初始疗效反应差的患者,其平均血红蛋白水平低于有较好血红蛋白反应的患者(血红蛋白水平的变化范围从2%至 ≥15%)(两个时间点的比较均为P<0.001),尽管前者接受了较大剂量的阿法达贝泊汀(中位剂量为232 μg对167 μg,P<0.001)。疗效反应差的病人与疗效反应较好者相比,前者有较高的复合心血管终点发生率[经校正的风险比为1.31,95%可信区间(CI)为1.09~1.59]或较高的死亡率(经校正的风险比为1.41,95%CI为1.12~1.78)。

  结论 随着(阿法达贝泊汀的)剂量逐步增加以达到目标血红蛋白水平,患者最初对阿法达贝泊汀的造血反应差,与其后续死亡或心血管事件的危险增加相关。尽管这种差异效应的机制还未被了解,但这些结果引起了人们对当前在慢性肾疾病患者中基于目标的贫血治疗策略的担忧。

  (N Engl J Med 2010;363:1146-55. September 16, 2010)

免费全文PDF文件http://www.nejm.org/doi/pdf/10.1056/NEJMoa1005109

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    2010-09-26 jinqun

    想看不同级别的标书范文,初学者,学习一下。谢谢!

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