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Crit Care:脓毒性休克患者静脉注射维生素C治疗的效果分析

2022-01-29 MedSci原创 MedSci原创

该初步研究表明静脉注射维生素C并没有显著降低血管升压剂的剂量或持续时间。考虑到干预时间、剂量和持续时间以及试验地点的潜在影响,需要进一步的研究来提供更明确的证据。

脓毒性休克患者静脉注射维生素C可能对血管升压药的需求有一定的影响。

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,研究人员旨在明确静脉注射维生素C对感染性休克患者血管升压药需求和其他结局的影响。

这是一项在40名感染性休克患者中进行的双盲、随机安慰剂对照试验,受试者随机(1:1)接受静脉注射维生素C(剂量为25mg/kg体重/h)或安慰剂(静脉注射5%葡萄糖)治疗,最长治疗时间96小时,或直至死亡或出院。该研究的主要结局是静脉输注血管升压药的需求(剂量和持续时间),该研究的次要结局包括顺序器官衰竭评估(SOFA)评分、重症监护病房(ICU)和住院时间以及死亡率。此外,研究人员收集了血样以确定维生素C和炎症标志物浓度。

基线时受试者血浆维生素C较低(9.2[4.4-12]µmol/L),干预72小时后增加到408(227-560)µmol/L。维生素C组静脉血管升压药输注的平均持续时间为48(95%CI为35-62)小时,安慰剂组为54(95%CI为41-62)小时(p=0.52)。随着时间的推移,两组的血管升压药剂量相当,SOFA评分也相当(p>0.05)。干预组的中位ICU停留时间为3.8(2.2-9.8)天,而安慰剂组为7.1(3.1-20)天(p=0.12)。维生素C组的中位住院时间为18(11-35)天,而安慰剂组为22(10-52)天(p=0.65)。两组的死亡率相当(p>0.05)。在炎症标志物中,相对于安慰剂组,维生素C组的中性粒细胞计数在72小时内升高(p=0.01)。C-反应蛋白和髓过氧化物酶浓度在基线时升高,但两组随时间推移仍然相当(p>0.05)。

由此可见,该初步研究表明静脉注射维生素C并没有显著降低血管升压剂的剂量或持续时间。考虑到干预时间、剂量和持续时间以及试验地点的潜在影响,需要进一步的研究来提供更明确的证据。

原始出处:

Patrice Rosengrave,et al.Intravenous vitamin C administration to patients with septic shock: a pilot randomised controlled trial.Critical Care.2022.https://ccforum.biomedcentral.com/articles/10.1186/s13054-022-03900-w

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    2023-12-05 123fd0c8m12暂无昵称 来自浙江省
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    2022-11-26 fusion
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