Stoll Sandra Emily, Paul Eldho, Pilcher David, Udy Andrew, Burrell Aidan
Department of Intensive Care and Hyperbaric Medicine, The Alfred Hospital, Melbourne, VIC, Australia; Department of Anaesthesiology and Intensive Care Medicine, University of Cologne, Faculty of Medicine and University Hospital Cologne, Germany.
Australian and New Zealand Intensive Care Research Centre (ANZIC-RC), School of Public Health and Preventive Medicine, Monash University, Melbourne, Victoria, Australia.
J Crit Care. 2022 Jun;69:154001. doi: 10.1016/j.jcrc.2022.154001. Epub 2022 Feb 23.
Hyperoxia has been associated with adverse outcomes in post cardiac arrest (CA) patients. Study-objective was to examine the association between hyperoxia and 30-day mortality in a mixed cohort of two different modes of Cardiopulmonary Resuscitation (CPR): Extracorporeal (ECPR) vs. Conventional (CCPR).
In this retrospective cohort study of CA patients admitted to a tertiary level CA centre in Australia (over a 6.5-year time period) mean arterial oxygen levels (PaO) and episodes of extreme hyperoxia (maximum of mean PaO ≥ 300 mmHg) were analysed over the first 8 days post CA.
One hundred and sixty-nine post CA patients were assessed (ECPR n = 79 / CCPR n = 90). Mean PaO-levels were higher in the ECPR vs CCPR group (211 mmHg ± 58.4 vs 119 mmHg ± 18.1; p < 0.0001) as was the proportion with at least one episode of extreme hyperoxia (74.7% vs 16.7%; p < 0.001). After adjusting for confounders and the mode of CPR any episode of extreme hyperoxia was independently associated with a 2.52-fold increased risk of 30-day mortality (OR: 2.52, 95% CI: 1.06-5.98; p = 0.036).
We found extreme hyperoxia was more common in ECPR patients in the first 8 days post CA and independently associated with higher 30-day mortality, irrespective of the CPR-mode.
高氧血症与心脏骤停(CA)后患者的不良预后相关。本研究的目的是在两种不同心肺复苏(CPR)模式(体外膜肺氧合心肺复苏[ECPR]与传统心肺复苏[CCPR])的混合队列中,研究高氧血症与30天死亡率之间的关联。
在这项对澳大利亚一家三级CA中心收治的CA患者进行的回顾性队列研究中(为期6.5年),分析了CA后前8天的平均动脉血氧水平(PaO)和极度高氧血症发作情况(平均PaO最大值≥300 mmHg)。
共评估了169例CA后患者(ECPR组n = 79 / CCPR组n = 90)。ECPR组的平均PaO水平高于CCPR组(211 mmHg±58.4 vs 119 mmHg±18.1;p < 0.0001),至少有一次极度高氧血症发作的比例也是如此(74.7% vs 16.7%;p < 0.001)。在对混杂因素和CPR模式进行调整后,任何一次极度高氧血症发作都与30天死亡率增加2.52倍独立相关(OR:2.52,95% CI:1.06 - 5.98;p = 0.036)。
我们发现,CA后前8天,极度高氧血症在ECPR患者中更为常见,且与30天死亡率较高独立相关,与CPR模式无关。