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Lancet: 婴儿期全身麻醉不影响神经发育

2019-03-29 杨中华 脑血管病及重症文献导读

人们一直关注麻醉诱导神经毒性对脑发育的影响。在动物模型中,幼年全身麻醉将会引起一系列形态学改变。这些动物包括非人类灵长类,可见神经细胞死亡、神经发生障碍、神经胶质死亡以及轴索形成异常。

人们一直关注麻醉诱导神经毒性对脑发育的影响。在动物模型中,幼年全身麻醉将会引起一系列形态学改变。这些动物包括非人类灵长类,可见神经细胞死亡、神经发生障碍、神经胶质死亡以及轴索形成异常。在一些动物模型中,婴儿期全身麻醉暴露与行为改变有关,包括一直到成年早期对威胁的情绪反应增强、学习和记忆形成障碍。目前尚不清楚动物模型中的这些现象在人类(发育更加复杂)会怎么样。

人类队列研究分析过儿童早期暴露于麻醉与各种不良神经发育预后之间的关系,结果得出了五花八门和矛盾的证据。根据临床前和临床的研究结果,美国 FDA对大多数儿童期全身麻醉贴上了强制性警告标签。同时液号召进行更具权威性的研究评价儿童早期暴露于麻醉是否对人类神经发育产生临床相关效应。

从队列研究中得到任何结论都是很困难的,因为存在混淆因素。2019年2月来自美国的Mary Ellen McCann等在 Lancet 上公布了 GAS 试验结果,目的在于探讨婴儿早期全身麻醉的暴露对神经发育的影响。

该研究为国际、评价者盲、等效、随机对照试验。纳入的婴儿<=60周经后龄(aged 60 weeks’ postmenstrual age or less),超过26周妊娠期后出生,并且计划进行腹股沟疝修补术。随机接受清醒-局部麻醉或基于七氟醚的全身麻醉。主要终点为5岁时智商总量表得分[full-scale intelligence quotient (FSIQ) on the Wechsler Preschool and Primary Scale of Intelligence, third edition (WPPSI-III)]。

按方案分析(局麻205例,全麻242例)进行主要终点分析。全面平均持续时间为54min(IQR 41-70)。局麻组和全麻组的平均 FSIQ 得分分别为99.08(SD 18.35)和98.97(SD 19.66),均值差异为0.23(95% CI –2·59 to 3·06)。强烈证据提示二者相当。ITT分析结果类似于按方案分析。

最终作者认为在这个以男性为主的研究中,婴儿早期进行不足1h 的全身麻醉不会对5岁时的神经发育造成任何影响。

原始出处:Mary Ellen McCann, Jurgen C de Graaff, Liam Dorris, DClinPsy, et al. Neurodevelopmental outcome at 5 years of age after general anaesthesia or awake-regional anaesthesia in infancy (GAS): an international, multicentre, randomised, controlled equivalence trial. Lancet. 2019 Feb 16;393(10172):664-677.

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    2019-10-09 howi
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    2019-03-31 neurowu
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    2019-03-31 飛歌

    学习了很有用不错

    0

  6. [GetPortalCommentsPageByObjectIdResponse(id=1830000, encodeId=9ddd183000016, content=<a href='/topic/show?id=1b6210686b2' target=_blank style='color:#2F92EE;'>#Lancet#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=73, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=10686, encryptionId=1b6210686b2, topicName=Lancet)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=3f0227, createdName=howi, createdTime=Wed Oct 09 20:51:00 CST 2019, time=2019-10-09, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1345619, encodeId=c7281345619cd, content=<a href='/topic/show?id=37c9e4238b9' target=_blank style='color:#2F92EE;'>#神经发育#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=79, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=74238, encryptionId=37c9e4238b9, topicName=神经发育)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=a12645, createdName=docwu2019, createdTime=Sun Mar 31 07:51:00 CST 2019, time=2019-03-31, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1347391, encodeId=78ff134e391ef, content=<a href='/topic/show?id=88713e938c1' target=_blank style='color:#2F92EE;'>#发育#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=70, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=37938, encryptionId=88713e938c1, topicName=发育)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=f4c124, createdName=neurowu, createdTime=Sun Mar 31 07:51:00 CST 2019, time=2019-03-31, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1614115, encodeId=f0b4161411569, content=<a href='/topic/show?id=a6824506923' target=_blank style='color:#2F92EE;'>#婴儿期#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=89, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=45069, encryptionId=a6824506923, topicName=婴儿期)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=e85919488444, createdName=108807375_62823133, createdTime=Sun Mar 31 07:51:00 CST 2019, time=2019-03-31, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=363836, encodeId=9ca536383620, content=学习了很有用不错, beContent=null, objectType=article, channel=null, level=null, likeNumber=114, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/oLAjfB7s1ib3IzoRn621JdKCFUI4XvNELcibocrAVU6aUzEVDSaf3rYH08PUYUiagGqxAEhj8g9WqqNvD1CupIpCrmnR2OrqHZh/0, createdBy=7f181365728, createdName=飛歌, createdTime=Sun Mar 31 01:10:24 CST 2019, time=2019-03-31, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=363780, encodeId=e0d7363e80fc, content=谢谢分享, beContent=null, objectType=article, channel=null, level=null, likeNumber=115, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://thirdwx.qlogo.cn/mmopen/vi_32/DYAIOgq83eqYPFHuMA3bhYQrHvycmum7IJoCsLK0FP6X56Eoj9PZAECDke8zLCKxZZvk9q7B6rZmPuFgN5YCfw/132, createdBy=f52d2514454, createdName=SCI我的梦, createdTime=Sat Mar 30 00:32:18 CST 2019, time=2019-03-30, status=1, ipAttribution=)]
    2019-03-30 SCI我的梦

    谢谢分享

    0

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