JAMA Intern Med:镁氧化物治疗老年夜间腿部痛性痉挛或仅是安慰剂效应

2017-05-24 贾朝娟 环球医学

镁氧化物广泛用于治疗夜间腿部痛性痉挛,但缺少充分的证据证明其有效性。2017年5月,发表在《JAMA Intern Med》的一项随机临床研究显示,口服镁氧化物治疗老年NLC不优于安慰剂。

镁氧化物广泛用于治疗夜间腿部痛性痉挛,但缺少充分的证据证明其有效性。2017年5月,发表在《JAMA Intern Med》的一项随机临床研究显示,口服镁氧化物治疗老年NLC不优于安慰剂。

研究小结:

问题:镁氧化物减少夜间腿部痛性痉挛的频率是否比安慰剂更有效?

结果:在这项纳入94名成人的随机临床试验中,镁氧化物和安慰剂组的夜间腿部痛性痉挛的次数均明显降低,两组间没有显着差异。

意义:这项试验证实镁氧化物缓解夜间腿部痛性痉挛没有显着优于安慰剂。

摘要:

重要性:镁补充剂被广泛用于夜间腿部痛性痉挛(NLC)的预防,尽管没有证据显示出显着的意义。

目的:考察镁氧化物用于NLC预防是否优于安慰剂。

设计、环境和受试者:2013年2月至4月在以色列北部开展的一项随机、双盲、安慰剂-对照临床试验,在2周资格筛选后是4周治疗。2014年3月22日至2016年4月17日开展的一项意向治疗分析。研究者使用21岁或以上经历NLC的社区居民志愿者样本,在2周筛选期内出现4次或以上发作。

干预:口服含镁氧化物或相似的安慰剂的胶囊,每日1次,睡前服用,共4周。

主要结局和测试:主要结局是筛选和治疗期内每周的NLC次数。次要结局包括NLC的严重度和持续时间、生活质量和睡眠质量。

结果:在166名志愿者中,72名(43%)被排除,其中15名拒绝参与,57名不符合纳入标准。在随机分配至镁氧化物(48)或安慰剂(46)的94名受试者(39%为男性;平均[SD]年龄,64.9[11.1]岁)中,6名未完成研究方案(每组3人)。镁氧化物和安慰剂组的NLC平均(SD)变化是每周-3.41(4.05)(从7.84[5.68]至4.44[5.66])和?3.03(4.53)(从8.51 [5.20]~5.48 [4.93]),组间差值是每周0.38(0.48)NLC(意向治疗分析的P=0.67)。NLC严重度和持续时间、生活质量或睡眠质量没有组间差异。

结论和相关性:口服镁氧化物治疗老年NLC不优于安慰剂。两组从筛选到治疗期,每周NLC平均次数的降低可能是安慰剂作用,这也许可以解释镁广泛用于治疗NLC的原因。

试验注册:clinicaltrials.gov Identifier:NCT01709968。

原始出处:

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    2017-05-26 apoenzyme
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    2017-05-25 baihao215

    译者的名字有点儿面熟啊

    0

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    2017-05-25 meiliwuxian

    学习了

    0