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JACC:氟氢可的松是否可以预防血管迷走性昏厥?

2016-06-29 fsy 译 MedSci原创

目前氟氢可的松是否可以预防血管迷走性昏厥的证据是有限的。作者试图确定使用氟氢可的松治疗是否可以减少复发性昏厥患者40%的比例,这是一个预先指定的最小临床重要相对风险降低。多中心POST2研究是一项随机,安慰剂对照,双盲试验,该试验评估了氟氢可的松治疗血管迷走性昏厥超过1年的治疗期间的影响。所有患者均有>2次的昏厥,卡尔加里晕厥症状评分>-3。患者每天接受氟氢可的松或匹配的安慰剂,最高耐

目前氟氢可的松是否可以预防血管迷走性昏厥的证据是有限的。

作者试图确定使用氟氢可的松治疗是否可以减少复发性昏厥患者40%的比例,这是一个预先指定的最小临床重要相对风险降低。

多中心POST2研究是一项随机、安慰剂对照、双盲试验,该试验评估了氟氢可的松治疗血管迷走性昏厥超过1年的治疗期间的影响。所有患者均有>2次的昏厥,卡尔加里晕厥症状评分>-3。患者每天接受氟氢可的松或匹配的安慰剂,最高耐受剂量从0.05毫克到0.2毫克。主要观察指标是昏厥的第一次复发。

作者随机分配210例患者(71%为女性,平均年龄30岁)接受氟氢可的松或安慰剂,这些患者在平均9年中有超过15次昏厥。其中,96例患者有≥1次昏厥复发,只有14例患者在昏厥复发前失去随访。氟氢可的松组的患者发生昏厥的次数有轻微但并不显著的减少(危险比[HR]:0.69:95%置信区间(CI):0.46〜1.03; P=0.069)。在一个多变量模型中,氟氢可的松显著减少昏厥的可能性(HR:0.63; 95%CI:0.42〜0.94; P=0.024)。当剂量稳定2周后仅限于结果时,服用氟氢可的松的益处非常明显(HR:0.51; 95%CI:0.28〜0.89; P=0.019)。

该研究没有达到证明氟氢可的松减少了昏厥风险40%的主要目标。这项研究表明剂量稳定后效果显著,并有在事后多变量和处理分析发现显著的结果。

原始出处:

Robert Sheldon,Satish R. Raj,M. Sarah Rose,et al.Fludrocortisone for the Prevention of Vasovagal Syncope,JACC,2016.6.29

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    2016-07-14 hbwxf
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    2016-10-11 ylzr123

    拜读了,受益匪浅,点个赞!

    0

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    2016-07-01 微分

    学习了,方法学不错,思路不错

    0

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