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Crit Care:接受ECMO支持的难治性心源性休克患者早期高压氧与死亡率的关系

2022-08-27 MedSci原创 MedSci原创

高压氧与接受VA-ECMO支持的难治性心源性休克患者28天死亡率相关。该研究的结果提示十分有必要进行大规模随机对照试验。

接受静脉动脉(VA)体外膜氧合(ECMO)治疗的难治性心源性休克患者死亡率仍然很高,高压氧可能会恶化患者的结局。近日,危重病医学领域权威杂志Critical Care上发表了一篇研究文章,该研究的目的是评估这种情况下高压氧治疗和患者28天死亡率之间的关系。

研究人员在法国的两个教学医院进行了一项回顾性的中心研究。研究人群纳入了因难治性心源性休克而入院的成年患者,并记录了入院后48h的动脉血氧分压(PaO2)变量:绝对峰值PaO2(48h内的单一最高值)、平均日峰值PaO2(每天峰值的平均值)、总平均PaO2(48h内所有值的平均值)和高压氧严重程度(轻度:PaO2<200mmHg,中度:PaO2=200-299mmHg,严重:PaO2≥300mmHg)。

该研究的主要结果是28天全因死亡率。研究人员利用倾向评分衍生的反概率加权(IPW)来减少基线特征的不平衡因素。

在2013年1月至2020年1月期间,研究人员纳入了430例患者。受试者28天死亡率为43%。非存活组受试者的平均日峰值、绝对峰值和总平均PaO2值明显高于存活组受试者。在多因素logistic回归分析中,日均峰值PaO2、绝对峰值PaO2和总平均PaO2是患者28天死亡率的独立预测因子(调整后的比值比[95%置信区间每10mmHg增量分别为:2.65[1.79-6.07]、2.36[1.67-4.82]和2.85[1.12-7.37])。IPW后,高压氧仍与患者28天死亡率显著相关(OR=1.41,[1.01-2.08];P=0.041)。

由此可见,高压氧与接受VA-ECMO支持的难治性心源性休克患者28天死亡率相关。该研究的结果提示十分有必要进行大规模随机对照试验。

 

原始出处:

Mouhamed Djahoum Moussa.et al.Early hyperoxia and 28-day mortality in patients on venoarterial ECMO support for refractory cardiogenic shock: a bicenter retrospective propensity score-weighted analysis.Critical Care.2022.https://ccforum.biomedcentral.com/articles/10.1186/s13054-022-04133-7

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    2023-03-05 zhangbaojun
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    2022-08-29 freve
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    2022-08-29 mhm295

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