High oxygen does not increase reperfusion injury assessed with lipid peroxidation biomarkers after cardiac arrest: A post hoc analysis of the COMACARE trial

Jaana Humaloja, Maximo Vento, Julia Kuligowski, Sture Andersson, José David Piñeiro-Ramos, Ángel Sánchez-Illana, Erik Litonius, Pekka Jakkula, Johanna Hästbacka, Stepani Bendel, Marjaana Tiainen, Matti Reinikainen, Markus B Skrifvars

Tutkimustuotos: ArtikkeliScientificvertaisarvioitu

3 Sitaatiot (Scopus)

Abstrakti

The products of polyunsaturated fatty acid peroxidation are considered reliable biomarkers of oxidative injury in vivo. We investigated ischemia-reperfusion-related oxidative injury by determining the levels of lipid peroxidation biomarkers (isoprostane, isofuran, neuroprostane, and neurofuran) after cardiac arrest and tested the associations between the biomarkers and different arterial oxygen tensions (PaO2). We utilized blood samples collected during the COMACARE trial (NCT02698917). In the trial, 123 patients resuscitated from out-of-hospital cardiac arrest were treated with a 10-15 kPa or 20-25 kPa PaO2 target during the initial 36 h in the intensive care unit. We measured the biomarker levels at admission, and 24, 48, and 72 h thereafter. We compared biomarker levels in the intervention groups and in groups that differed in oxygen exposure prior to randomization. Blood samples for biomarker determination were available for 112 patients. All four biomarker levels peaked at 24 h; the increase appeared greater in younger patients and in patients without bystander-initiated life support. No association between the lipid peroxidation biomarkers and oxygen exposure either before or after randomization was found. Increases in the biomarker levels during the first 24 h in intensive care suggest continuing oxidative stress, but the clinical relevance of this remains unresolved.

AlkuperäiskieliEnglanti
Sivut4226
JulkaisuJournal of Clinical Medicine
Vuosikerta10
Numero18
DOI - pysyväislinkit
TilaJulkaistu - syysk. 2021
Julkaistu ulkoisestiKyllä
OKM-julkaisutyyppiA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

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