JAMA:急性卒中需要常规吸氧吗?

2017-10-07 杨中华 脑血管病及重症文献导读

急性卒中后低氧血症很常见,通常是间断性低氧血症,往往被忽略或未被发现。常规预防性低流量吸氧改善急性卒中患者的预后吗?


急性卒中后低氧血症很常见,通常是间断性低氧血症,往往被忽略或未被发现。常规预防性低流量吸氧改善急性卒中患者的预后吗?

为了回答这个问题Christine Roffe等在JAMA上发表了他们的随机临床试验结果,目的在于评价急性卒中患者常规预防性低流量吸氧比控制性氧供更能够降低90天死亡和残疾,是否夜间吸氧(低氧血症更常见于这个时间)更有效。

该研究为单盲随机临床试验,共纳入英国136家中心8003例急性卒中患者。这些患者按照1:1:1的比例随机给予持续吸氧72h,或夜间吸氧(21:00到7:00h)3晚,或对照(临床需要时吸氧)。如果基线血氧饱和度<=93%按照3L/min鼻导管吸氧,如果>93%按照2L/min鼻导管吸氧。

纳入的8003例患者中,平均年龄72岁,平均NIHSS为5分,基线血氧饱和度为96.6%。吸氧 vs 对照良好预后(顺序回归)未调整OR为0.97(95% CI,0.89 - 1.05;P = 0.47),持续吸氧vs夜间吸氧OR为1.03 (95% CI, 0.93 to 1.13; P=0.61)。亚组分析也未发现吸氧的益处。持续吸氧、夜间吸氧和对照严重不良事件(至少发生一次)发生率分别为13%、11%和12.1%。

最终作者认为对于非低氧血症的急性卒中患者,预防性使用低流量吸氧不能降低3个月死亡或残疾。

原始出处:

Christine Roffe, MD1,2; Tracy Nevatte, PhD,et al.Effect of Routine Low-Dose Oxygen Supplementation on Death and Disability in Adults With Acute Stroke:The Stroke Oxygen Study Randomized Clinical Trial.JAMA. 2017;318(12):1125-1135. doi:10.1001/jama.2017.11463

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    2017-10-07 137****9095

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    2017-10-07 yfjms

    学习了

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