氧化抑制剂的变化和重症患者的死亡率:一个队列研究
Karoline Myglegård Mortensen1, Theis Skovsgaard Itenov2, Jakob Stensballe3,4
1Department of Anesthesiology and Intensive Care, Copenhagen University Hospital - North Zealand, Hilleroed, Denmark. karoline.myglegaard@gmail.com.
Annals of intensive care
|August 27, 2024
概括
在ICU入院后的前三天,不对称的二甲基氨酸 (ADMA) 水平的增加与较低的死亡率相关. 然而,ADMA和对称二甲基氨酸 (SDMA) 的高初始水平与死亡风险增加有关.
科学领域:
- 关键护理医学 关键护理医学
- 血管生物学 血管生物学
- 生物标志物研究的研究.
背景情况:
- 在重症患者中保持最佳的器官输液需要平衡宏观和微观循环.
- 氧化 (NO) 调节血管度和血液静止,其可用性受到阿金氨酸代谢物ADMA和SDMA的影响.
研究的目的:
- 为了检查在ICU入院的前五天ADMA,SDMA,阿尔金宁和同质阿尔金宁的血度的变化.
- 评估这些NO生物标志物的变化 (1-3天) 与30天全因死亡率之间的关联.
主要方法:
- 一个单一中心的队列研究,涉及成年ICU患者.
- 在第1-5天测量血ADMA,SDMA,阿尔金因和同质阿尔金因.
- 使用线性混合模型分析生物标志物变化及其与30天死亡率的关联.
主要成果:
- 血ADMA和阿尔金因度从第1-5天开始增加;SDMA最初增加,然后减少;在第3天之后,同类阿尔金因呈现轻微增加.
- 从第1到第3天的ADMA每天增加两倍与30天死亡率降低有关 (HR 0.45).
- 入院时ADMA或SDMA度升高与死亡率增加有关 (HR分别为1.78和1.41).
结论:
- 在ICU早期增加ADMA水平显示出与死亡率的反向关联,尽管不如入院度明显.
- 最初的ADMA和SDMA度可作为ICU患者死亡率的显著预测指标.
- 未来的研究应该集中在接受ADMA和SDMA水平作为潜在的死亡率预测指标或治疗目标.
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