Blood:降低术中输血的临界值的安全性评估

2019-03-23 不详 MedSci原创

目前指南推荐手术期间应限制红细胞输注量,但这种策略的可行性和安全性尚不明确,因为大多数证据基本是来源于术后病情稳定的患者。Anders M?ller等研究人员对旨在控制血管外科住院期间红细胞输注量的方案的效果进行评估。58位计划进行下肢动脉搭桥或开放性腹主动脉瘤修复术的患者随机分组,一组输血(红细胞)临界值低(血红蛋白<8.0g/dL),一组输血临界值高(8.0g/dL≤血红蛋白<9.

目前指南推荐手术期间应限制红细胞输注量,但这种策略的可行性和安全性尚不明确,因为大多数证据基本是来源于术后病情稳定的患者。

Anders M?ller等研究人员对旨在控制血管外科住院期间红细胞输注量的方案的效果进行评估。58位计划进行下肢动脉搭桥或开放性腹主动脉瘤修复术的患者随机分组,一组输血(红细胞)临界值低(血红蛋白<8.0g/dL),一组输血临界值高(8.0g/dL≤血红蛋白<9.7g/dL)。手术过程中采用近红外光谱法检测脑组织和肌肉组织的氧饱和度。探索性结果包括来自全国登记的死亡和主要血管并发症的数据。

低临界值组和高临界值组红细胞输注量中位值(四分位范围[IQR])分别为1(0-2) vs 3(2-6)单位(p=0.0015)。低临界值组手术15天内的平均血红蛋白水平(主要指标)明显低于高临界值组,9.46g/dL vs 10.33g/dL(平均差0.87g/dL; p=0.022)。低临界值组的脑氧饱和度从基线开始下降的时间和幅度都有所增加(中位值[IQR],421min*%[42-888] vs 127[11-331];p=0.0036),而肌肉组织的氧饱和度未受影响。低临界值组的死亡率和主要血管并发症均高于高临界值组:19/29 vs 8/29(HR 3.20;p=0.006),90天内院外存活的天数也更少(中位值[IQR] 76[67-82] vs 92[76-84]天;p=0.049)。

综上所述,限制红细胞输注的围手术期方案可成功分离血红蛋白水平和红细胞输注量。本研究的探索性结果提示降低输血的临界值存在潜在风险,推广这种方案之前需要在进一步进行试验。



原始出处:

Anders Moller, et al.Low vs. high hemoglobin trigger for Transfusion in Vascular surgery (TV): a randomized clinical feasibility trial.Blood 2019 :blood-2018-10-877530; doi: https://doi.org/10.1182/blood-2018-10-877530

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    2019-03-27 329523732

    不错

    0

  2. [GetPortalCommentsPageByObjectIdResponse(id=363605, encodeId=ba5736360502, content=不错, beContent=null, objectType=article, channel=null, level=null, likeNumber=63, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://thirdwx.qlogo.cn/mmopen/vi_32/2EVCwc9WmQS6ec99H2TX8ejmR40xYjwrIcrqjAnibV36aicL1sLxc21rhpZnqTOxk33HP44iayEwo6qYXqgZvdRtA/132, createdBy=d0d01573846, createdName=329523732, createdTime=Wed Mar 27 00:28:43 CST 2019, time=2019-03-27, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=363602, encodeId=c42d3636025b, content=很好的学习资料,收藏了, beContent=null, objectType=article, channel=null, level=null, likeNumber=77, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://cdnapi.center.medsci.cn/medsci/head/2018/07/20/4eb30e002d283d7d1b61197c0e17c719.jpg, createdBy=b84b2405802, createdName=小灯, createdTime=Tue Mar 26 23:56:13 CST 2019, time=2019-03-26, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1259707, encodeId=fcfb1259e0758, content=<a href='/topic/show?id=569c9382389' target=_blank style='color:#2F92EE;'>#输血#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=36, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=93823, encryptionId=569c9382389, topicName=输血)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=ec9955, createdName=windight, createdTime=Mon Mar 25 09:48:00 CST 2019, time=2019-03-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=363434, encodeId=d3da363434ce, content=不错, beContent=null, objectType=article, channel=null, level=null, likeNumber=70, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://thirdwx.qlogo.cn/mmopen/vi_32/2EVCwc9WmQS6ec99H2TX8ejmR40xYjwrIcrqjAnibV36aicL1sLxc21rhpZnqTOxk33HP44iayEwo6qYXqgZvdRtA/132, createdBy=d0d01573846, createdName=329523732, createdTime=Sat Mar 23 19:05:13 CST 2019, time=2019-03-23, status=1, ipAttribution=)]
    2019-03-26 小灯

    很好的学习资料,收藏了

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    2019-03-25 windight
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    2019-03-23 329523732

    不错

    0

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