Am J Med:摄入过量维生素A导致颅内压增高——案例报道

2016-01-17 Seven L 译 MedSci原创

33岁男性因怀疑卒中就诊。一周前患者逐渐出现双眼垂直性复视,右下颚和双手麻木,持续3小时失去平衡。一个月前出现过视力模糊、头痛、呕吐,持续1-2小时。所有这些症状都是患者在健身房里发生的。患者既往史无特殊,母亲和母亲的亲戚有缺血性卒中史。查体没有发现感觉或锥体体征,没有眼肌麻痹,视盘检查正常。抽血检查均在正常范围内,心电图显示无异常。令人遗憾的是,没有得到血清维生素A的情况。起初怀疑患者后循环引发

33岁男性因怀疑卒中就诊。一周前患者逐渐出现双眼垂直性复视,右下颚和双手麻木,持续3小时失去平衡。一个月前出现过视力模糊、头痛、呕吐,持续1-2小时。所有这些症状都是患者在健身房里发生的。患者既往史无特殊,母亲和母亲的亲戚有缺血性卒中史。查体没有发现感觉或锥体体征,没有眼肌麻痹,视盘检查正常。抽血检查均在正常范围内,心电图显示无异常。令人遗憾的是,没有得到血清维生素A的情况。

起初怀疑患者后循环引发的卒中,但是头颅影像学检查包括MR扩散加权和头颅MR血管造影均提示正常。后再对患者进行病史询问发现,患者近期开始摄入与健康相关的复合维生素补充剂。连续3个月每天摄入维生素A9900IU。腰穿检查示脑脊液压力310mmH2O,脑脊液成分正常。颅内血管CT造影以排除静脉窦血栓形成。建议患者听着该复合维生素补充剂的摄入,出院后1个月的随访中,患者没有再出现过类似症状。

本例说明了摄入多种维生素与神经系统症状和颅内压增高有关。医生怀疑患者的症状是维生素A中毒所致。对于补充剂中其他成分导致这种症状,研究者暂时还找不到足够的支持证据。维生素A过量和颅内高压间的关系已经探讨了很多年,此外使用维生素A类似物进行治疗时,观察到的一些副作用与颅内压升高的典型表现类似。不过不幸的是,检测血液中维生素A浓度对诊断并没有什么帮助,以后还需要更多的因果关系证据。

近一半的成年人补充剂摄入过量,且与不良结局有关。这些无牌产品很容易大批量的进行购买,但产品商并不会宣传产品潜在的毒性。因此临床医师询问病史时应足够全面,甚至包括维生素补充剂的摄入。

原始出处:

Keith Oldroyd C, Walters M.et al.Raised Intracranial Pressure Secondary to Vitamin Overdose.Am J Med. 2015 Dec 16. pii: S0002-9343(15)30022-X.

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    2016-01-19 wwzzly
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    2016-01-19 liuxiaona
  6. [GetPortalCommentsPageByObjectIdResponse(id=1942021, encodeId=896f1942021d5, content=<a href='/topic/show?id=4e7910039477' target=_blank style='color:#2F92EE;'>#颅内压增高#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=43, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=100394, encryptionId=4e7910039477, topicName=颅内压增高)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=e05e201, createdName=appleandpeer, createdTime=Thu Feb 04 22:48:00 CST 2016, time=2016-02-04, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1810908, encodeId=5d971810908bb, content=<a href='/topic/show?id=a24086532b8' target=_blank style='color:#2F92EE;'>#致颅内#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=37, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=86532, encryptionId=a24086532b8, topicName=致颅内)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=5e30378, createdName=caobinglei8079, createdTime=Tue Aug 23 07:48:00 CST 2016, time=2016-08-23, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1420002, encodeId=280614200026a, content=<a href='/topic/show?id=ae62e905291' target=_blank style='color:#2F92EE;'>#维生素A#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=32, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=79052, encryptionId=ae62e905291, topicName=维生素A)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=c60e3553736, createdName=wwzzly, createdTime=Tue Jan 19 12:48:00 CST 2016, time=2016-01-19, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1503552, encodeId=3a6315035524d, content=<a href='/topic/show?id=ac441003921e' target=_blank style='color:#2F92EE;'>#颅内压#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=50, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=100392, encryptionId=ac441003921e, topicName=颅内压)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=d96d9662987, createdName=jiadan198785, createdTime=Tue Jan 19 12:48:00 CST 2016, time=2016-01-19, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1561576, encodeId=b60715615e60b, content=<a href='/topic/show?id=118142341b1' target=_blank style='color:#2F92EE;'>#增高#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=39, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=42341, encryptionId=118142341b1, topicName=增高)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=af9415191444, createdName=liuxiaona, createdTime=Tue Jan 19 12:48:00 CST 2016, time=2016-01-19, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1567585, encodeId=d4c3156e585d1, content=<a href='/topic/show?id=118142341b1' target=_blank style='color:#2F92EE;'>#增高#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=20, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=42341, encryptionId=118142341b1, topicName=增高)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=af9415191444, createdName=liuxiaona, createdTime=Tue Jan 19 12:48:00 CST 2016, time=2016-01-19, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1606823, encodeId=7e9c1606823f1, content=<a href='/topic/show?id=eb6b1145939' target=_blank style='color:#2F92EE;'>#Med#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=29, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=11459, encryptionId=eb6b1145939, topicName=Med)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=552a19396740, createdName=ms3994565386320060, createdTime=Tue Jan 19 12:48:00 CST 2016, time=2016-01-19, status=1, ipAttribution=)]
    2016-01-19 liuxiaona
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