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Lancet:憋气并抬高双腿:能有效终止室上速(REVERT试验)

2015-09-11 中国循环杂志 中国循环杂志

Valsalva动作,也称瓦氏试验,因其简单无创,首次急诊的室上性心动过速患者常常使用,但是由于做得不到位,成功率较低只有5%~20%。 而近期发表的REVERT研究改进了Valsalva动作:让患者在半卧位憋气之后立即平卧,并由他人抬高其双腿;而且证明这种改进很有成效。 研究表明,这一改进的Valsalva动作,较之传统半卧位可显著提高室上性心

Valsalva动作,也称瓦氏试验,因其简单无创,首次急诊的室上性心动过速患者常常使用,但是由于做得不到位,成功率较低只有5%~20%。

而近期发表的REVERT研究改进了Valsalva动作:让患者在半卧位憋气之后立即平卧,并由他人抬高其双腿;而且证明这种改进很有成效。

研究表明,这一改进的Valsalva动作,较之传统半卧位可显著提高室上性心动过速,前者仅有17%成功恢复窦性心律,而改进动作后,治疗成功率达43.5%。

研究者对此很欣慰认为,通过简单调整姿势,就可使患者回心血量增加,从而增加Valsalva动作的成功治疗率,很有临床意义。从而也避免了一大部分患者不得已注射腺苷而产生的濒死感等不良反应。

这项随机对照研究,共纳入10个急诊室就诊的433例室上性心动过速患者进行了研究,包括房颤和房扑患者。主要了解改变Valsalva动作的姿势是否可以改善治疗成功率,主要研究终点为干预后1分钟恢复窦性心律。

原始出处:

Appelboam A, Reuben A, Mann C, Gagg J, Ewings P, Barton A, Lobban T, Dayer M, Vickery J, Benger J; REVERT trial collaborators.Postural modification to the standard Valsalva manoeuvre for emergency treatment of supraventricular tachycardias (REVERT): a randomised controlled trial. Lancet. 2015 Aug 24. pii: S0140-6736(15)61485-4.

小知识:Valsalva动作

Valsalva试验是令病人行强力闭呼动作,即深吸气后紧闭声门,再用力做呼气动作,呼气时对抗紧闭的会厌,通过增加胸内压来影响血液循环和自主神经功能状态,进而达到诊疗目的的一种临床生理试验。因其由意大利解剖学家Antonio Maria Valsalva于1704年提出而命名。由于它在操作上具有简便、实用及无创性等优点,在临床上沿用已久。

临床意义:

通过增加胸腔内压力,显著减少静脉回心血量;兴奋迷走神经;如(1)阵发性室上性心动过速时,通过valsalva动作兴奋迷走神经终止室上速发作;(2)肥厚梗阻型心肌病时,通过valsalva动作,减少回心血量使杂音增强,用来鉴别杂音;(3)二尖瓣脱垂导致二尖瓣反流,通过valsalva动作使杂音增强。(4)通过valsalva动作,左右心发生的杂音一般均减弱,而特发性肥厚型主动脉瓣下狭窄的杂音增强。临床医生常用此动作帮助鉴别杂音的性质和来源。valsalva动作时间不可过长,不然会导致脑血流和冠脉血流的减少。

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    2016-06-16 howi
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    2016-05-21 HinsMax
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    2015-09-12 medcardio

    能发柳叶刀才是神奇

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