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重复:N Engl J Med:左旋甲状腺素对亚临床甲减老年患者或是无用的治疗

2017-07-19 选题审校:应颖秋 编辑:贾朝娟 环球医学

亚临床甲状腺功能减退患者是否应接受左旋甲状腺激素治疗仍存在争议。2017年6月,发表在《N Engl J Med》上的一项研究显示,左旋甲状腺素未给亚临床甲状腺功能减退老年患者提供明显益处。

临床甲状腺功能减退患者是否应接受左旋甲状腺激素治疗仍存在争议。2017年6月,发表在《N Engl J Med》上的一项研究显示,左旋甲状腺素未给亚临床甲状腺功能减退老年患者提供明显益处。

背景:使用左旋甲状腺激素治疗亚临床甲状腺功能减退仍存在争议。研究者旨在调查左旋甲状腺激素是否能够给患有这种疾病的老年患者带来临床益处。

方法:研究者开展了一项双盲、随机、安慰剂-对照、平行组试验,纳入737名年龄至少为65岁并患有持续亚临床甲状腺功能减退(促甲状腺激素水平为4.60~19.99 mIU/L;游离甲状腺素水平在正常范围内)的成年患者。368名患者被分配至接受左旋甲状腺素(开始剂量为50 μg/日,如果体重<50 kg或患有冠心病改为25 μg),根据促甲状腺素水平校正剂量;369名患者被分配至接受安慰剂,并进行模拟剂量校正。两个主要结局是1年后甲状腺相关生活质量问卷中甲状腺机能减退症状评分和疲劳评分的变化(每个评分范围是0~100,分数越高分别表示症状越多或疲劳越严重;最小临床重要差异为9分)。

结果:患者平均年龄为74.4岁,396名患者(53.7%)是女性。基线时平均(±SD)促甲状腺素水平是6.40±2.01 mIU/L;1年时,安慰剂组水平降至5.48 mIU/L,左旋甲状腺素组则为3.63 mIU/L(P<0.001),中位剂量是50 μg。研究者发现1年时甲状腺功能减退的症状评分(安慰剂组为0.2±15.3 vs左旋甲状腺素组为0.2±14.4;组间差异为0;95%置信区间[CI]为-2~2.1)和疲劳评分(3.2±17.7 vs 3.8±18.4;组间差异为0.4;95%CI为-2.1~2.9)的平均变化没有差异。左旋甲状腺激素组的次要结局未见有益的作用。没有明显过多的严重不良事件。

结论:左旋甲状腺素未给亚临床甲状腺功能减退老年患者提供明显益处。(由欧洲联盟FP7及其他提供支助;TRUST ClinicalTrials.gov注册号,NCT01660126)

原始出处:
Stott, D. J., et al. (2017). "Thyroid Hormone Therapy for Older Adults with Subclinical Hypothyroidism." N Engl J Med 376(26): 2534-2544.

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    2017-11-05 haouestc
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    2017-11-23 spoonycyy
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    2017-07-23 方舒

    学习

    0

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AACE 2016:左旋甲状腺素治疗甲状腺功能减退症或可改为每周一次用药

左旋甲状腺素从从每日一次切换到每周一次(剂量为每日剂量的7倍量)可有效治疗女性的甲状腺功能减退症,实现甲状腺功能。古尔加翁公园医院的Satish C. Wasoori博士和同事对40名25-55岁长期甲状腺功能减退(至少5年)的女性进行了研究,这些患者目前服用每日剂量的左旋甲状腺素,评估切换到每周一次(剂量为每日剂量的7倍量)对甲状腺功能减退症的疗效。参与者被分为两组:1组(n = 20),TSH

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