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JACC:房颤预防脑卒中新装置:在颈动脉放线圈捕获血栓

2019-08-28 卢芳 中国循环杂志

房颤预防脑卒中是一个非常重要的临床问题,但是即使服用华法林及非华法林口服抗凝药物,也还残余35%左右的脑卒中风险,此外,还有患者不能接受口服抗凝治疗,有没有更好的能预防脑卒中的方法?

房颤预防卒中是一个非常重要的临床问题,但是即使服用华法林及非华法林口服抗凝药物,也还残余35%左右的脑卒中风险,此外,还有患者不能接受口服抗凝治疗,有没有更好的能预防脑卒中的方法?

近日,发表在JACC上的CAPTURE试验成功试水了一种能可以捕获> 1.4 mm栓子的新型颈动脉线圈过滤器,目前看来安全可行。



研究显示,双侧颈动脉置入这种新型过滤器的手术成功率为92%,有1例患者仅单侧置入。手术前后无设备或手术操作相关的主要不良事件,5例患者发生穿刺部位轻微血肿或水肿。

平均随访6个月期间,4例患者(1例双侧、4例单侧)检测到无症状血栓,其中3例判定为成功捕获血栓、2例为未分类血栓,无原位血栓形成。所有血栓应用皮下肝素溶解。1例患者发生两次与设备或手术操作无关的小卒中。

目前,脑卒中高危的房颤患者,服用口服抗凝药物可有效预防脑卒中,但仍存有残余卒中风险,而80%的房颤患者脑卒中发生于血管分支的直径>1.5 mm的大脑前循环的栓塞

据悉,这种线圈过滤器是由超弹性镍钛诺金属丝制成(圆形横截面,直径为240 μm),有11种尺寸(每增加0.5 mm为一码),以适应5~10 mm的颈动脉直径。而且,这种装置可以重复置入。

之所以捕获>1.4 mm栓子,是因为八成房颤脑卒中为颈动脉主要分支闭塞所致的前循环脑卒中,而这些颈动脉分支的直径通常>1.5 mm。


颈动脉线圈过滤器及其示意图

手术在超声引导下进行,使用24号针头直接经皮颈动脉穿刺后,使用电动装置将过滤器在颈动脉处释放。患者术后需先服用阿司匹林(每日81~100 mg)+氯吡格雷(每日75 mg)3个月,之后单用阿司匹林。

这项非随机首个人体临床试验共纳入了3个中心25例CHA2DS2-VASc≥2的房颤患者。受试者平均年龄(71±9)岁,平均CHA2DS2-VASc评分为(4.4 ± 1.0)分且不耐受口服抗凝药物治疗,无>30%的颈动脉狭窄,48%之前有过栓塞病史。在术后、出院前、术后1周、1、3、6、12个月分别行颈动脉超声随访。

原始出处:Reddy VY, Neuzil P, de Potter T, et al. Permanent Percutaneous Carotid Artery Filter to Prevent Stroke in Atrial Fibrillation Patients: The CAPTURE Trial. J Am Coll Cardiol, 2019, 74(7): 829-839.

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    2020-04-27 hbwxf
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    2019-09-18 衣带渐宽

    学习

    0

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    2019-08-28 146e15e5m33暂无昵称

    评论

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  6. [GetPortalCommentsPageByObjectIdResponse(id=1854484, encodeId=86b5185448422, content=<a href='/topic/show?id=48351020537' target=_blank style='color:#2F92EE;'>#JACC#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=85, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=10205, encryptionId=48351020537, topicName=JACC)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=55ce62, createdName=hbwxf, createdTime=Mon Apr 27 00:34:00 CST 2020, time=2020-04-27, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1843554, encodeId=07bb184355422, content=<a href='/topic/show?id=dab8100523bb' target=_blank style='color:#2F92EE;'>#颈动脉#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=87, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=100523, encryptionId=dab8100523bb, topicName=颈动脉)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=416347, createdName=mhzhuang@stu.e, createdTime=Mon Dec 02 22:34:00 CST 2019, time=2019-12-02, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=372883, encodeId=18223e2883b2, content=学习, beContent=null, objectType=article, channel=null, level=null, likeNumber=104, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmhead/Q3auHgzwzM6P57Bs8gOPaY1cQP9lIia0lmZOEXraGaoicqNToIslXDKw/0, createdBy=7a041951742, createdName=衣带渐宽, createdTime=Wed Sep 18 16:01:05 CST 2019, time=2019-09-18, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1326309, encodeId=5be81326309d7, content=<a href='/topic/show?id=96c71804b7' target=_blank style='color:#2F92EE;'>#ACC#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=88, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=1804, encryptionId=96c71804b7, topicName=ACC)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=1e452500029, createdName=12498568m50暂无昵称, createdTime=Thu Aug 29 15:34:00 CST 2019, time=2019-08-29, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=371910, encodeId=1f083e1910fe, content=评论, beContent=null, objectType=article, channel=null, level=null, likeNumber=124, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://cdnapi.center.medsci.cn/medsci/head/2019/08/28/642c6c6f0937190250c7c3e03c428b20.jpg, createdBy=8bc05173897, createdName=146e15e5m33暂无昵称, createdTime=Wed Aug 28 10:53:13 CST 2019, time=2019-08-28, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1026442, encodeId=a350102644206, content=卒中虽然是临床上常见病,溶栓,取栓等血管内治疗也很成熟,但是仍然有很多未知问题有待认知!, beContent=null, objectType=article, channel=null, level=null, likeNumber=77, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f0620, createdName=健健, createdTime=Wed Aug 28 03:34:00 CST 2019, time=2019-08-28, status=1, ipAttribution=)]
    2019-08-28 健健

    卒中虽然是临床上常见病,溶栓,取栓等血管内治疗也很成熟,但是仍然有很多未知问题有待认知!

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