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PLoS Med:静脉血栓风险预测新模型

2015-11-16 MedSci MedSci原创

 据估计,静脉血栓栓塞(VTE)的发病率为每年每1000人中有1-2人发病。而且,在老年人中,随着年龄每增加一岁,发病率上升1%。个人患VTE的生命周期风险大约是11%。多种遗传和环境风险因素,其中包括了石膏固定已经在病因学上被确证。但是,通常来讲仅有一个风险因素的存在并不足以诱发血栓栓塞的发病。只有在多种风险因素累积并且起到协同作用的时候,也就是达到“血栓阈值”时,血栓就会发生。尽管机

据估计,静脉血栓栓塞(VTE)的发病率为每年每1000人中有1-2人发病。而且,在老年人中,随着年龄每增加一岁,发病率上升1%。个人患VTE的生命周期风险大约是11%。多种遗传和环境风险因素,其中包括了石膏固定已经在病因学上被确证。但是,通常来讲仅有一个风险因素的存在并不足以诱发血栓栓塞的发病。只有在多种风险因素累积并且起到协同作用的时候,也就是达到“血栓阈值”时,血栓就会发生。尽管机理已经众所周知,但是仍无法精确地预测谁会患上VTE。因此有必要研究并开发出一种用于临床的预测工具来预测下肢被石膏固定的患者VTE发病风险。

研究人员利用了基于人群的案例对照试验(MEGA)的数据,这包括了4446例VTE患者,以及6118例无VTE对照。病例是从荷兰的六个抗凝血诊所召集来的。对照组则是通过随机确定的。使用多变量回归,建立一套完整的预测模型。除了这完整的预测模型(包含所有变量),研究人员还建立了一套限制性模型和一套临床模型(只有环境因素)。随后,研究人员开展了两个基于人群的案例对照试验对模型进行确证。

结果表明,与缠有石膏绷带的病人相关的环境风险因素、抗凝血因子以及遗传决定因素可以用来高度准确地预测VTE风险。在日常操作中,临床模型因为其所需的相关因素容易确定可以最为方便地被使用。这项研究对于血栓预防具有重要意义。

原始出处:
Nemeth B, Adrichem RAv, Hylckama Vlieg Av, Bucciarelli P, Martinelli I, Baglin T, et al. (2015) Venous Thrombosis Risk after Cast Immobilization of the Lower Extremity: Derivation and Validation of a Clinical Prediction Score, L-TRiP(cast), in Three Population-Based Case–Control Studies. PLoS Med 12(11): e1001899. doi:10.1371/journal.pmed.1001899

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    2017-07-20 hfuym10906

    学习了学习了学习了学习了

    0

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    2016-06-09 xue8602
  3. [GetPortalCommentsPageByObjectIdResponse(id=224232, encodeId=64922242323f, content=学习了学习了学习了学习了, beContent=null, objectType=article, channel=null, level=null, likeNumber=102, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/NUyjXTCJjo6KcicAVC1MwuIjZYTAgkEia1SFuoeAByVaQC8uXegibpJEV2Q7SqhpDINJicNiaU5pYicYmy5WsI8l5hDribViac2A1BQ9/0, createdBy=c36f1724608, createdName=hfuym10906, createdTime=Thu Jul 20 11:16:37 CST 2017, time=2017-07-20, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1955225, encodeId=fd9d1955225fb, content=<a href='/topic/show?id=0aeb991e44c' target=_blank style='color:#2F92EE;'>#静脉血#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=70, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=99174, encryptionId=0aeb991e44c, topicName=静脉血)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=d139492, createdName=xue8602, createdTime=Thu Jun 09 10:19:00 CST 2016, time=2016-06-09, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1697276, encodeId=df9d169e2760b, content=<a href='/topic/show?id=f2399910109' target=_blank style='color:#2F92EE;'>#静脉#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=61, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=99101, encryptionId=f2399910109, topicName=静脉)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=0bc129907796, createdName=fusion, createdTime=Tue Jun 28 01:19:00 CST 2016, time=2016-06-28, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=44709, encodeId=abc944e09b9, content=血栓在临床不少见,还应该以预防为主!, beContent=null, objectType=article, channel=null, level=null, likeNumber=150, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://cacheapi.medsci.cn/resource/upload/20150714/IMG55A4BC357ED6E1444.jpg, createdBy=9f231612624, createdName=liushui8012, createdTime=Fri Dec 04 07:21:00 CST 2015, time=2015-12-04, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1485910, encodeId=d3921485910a6, content=<a href='/topic/show?id=2c62100911a3' target=_blank style='color:#2F92EE;'>#风险预测#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=67, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=100911, encryptionId=2c62100911a3, topicName=风险预测)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=e31a8064712, createdName=12498ebem21暂无昵称, createdTime=Wed Nov 18 11:19:00 CST 2015, time=2015-11-18, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1606714, encodeId=36241606e1454, content=<a href='/topic/show?id=eb6b1145939' target=_blank style='color:#2F92EE;'>#Med#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=46, 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=Wed Nov 18 11:19:00 CST 2015, time=2015-11-18, status=1, ipAttribution=)]
    2016-06-28 fusion
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    2015-12-04 liushui8012

    血栓在临床不少见,还应该以预防为主!

    0

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