Research
Print page Print page
Switch language
The Capital Region of Denmark - a part of Copenhagen University Hospital
Published

Hyperoxia and antioxidants during major non-cardiac surgery and risk of cardiovascular events: Protocol for a 2 × 2 factorial randomised clinical trial

Research output: Contribution to journalJournal articleResearchpeer-review

DOI

  1. Hypophosphataemia is common in patients with aneurysmal subarachnoid haemorrhage

    Research output: Contribution to journalJournal articleResearchpeer-review

  2. Bioimpedance as a measure of fluid status in critically ill patients: A systematic review

    Research output: Contribution to journalReviewResearchpeer-review

  3. Effect of immunoglobulin G on cytokine response in necrotising soft-tissue infection: a post-hoc analysis

    Research output: Contribution to journalJournal articleResearchpeer-review

  4. Ischaemic vascular disease and long-term mortality in emergency abdominal surgical patients: A population-based cohort study

    Research output: Contribution to journalJournal articleResearchpeer-review

  5. Phrenic Nerve Block on Severe Post-Hepatectomy Shoulder Pain: A Randomized, Double-blind, Placebo-controlled, Pilot Study

    Research output: Contribution to journalJournal articleResearchpeer-review

  1. Agreement Between Transcutaneous Monitoring and Arterial Blood Gases During COPD Exacerbation

    Research output: Contribution to journalJournal articleResearchpeer-review

  2. Ischaemic vascular disease and long-term mortality in emergency abdominal surgical patients: A population-based cohort study

    Research output: Contribution to journalJournal articleResearchpeer-review

  3. Phrenic Nerve Block on Severe Post-Hepatectomy Shoulder Pain: A Randomized, Double-blind, Placebo-controlled, Pilot Study

    Research output: Contribution to journalJournal articleResearchpeer-review

  4. Association between tissue oxygenation and myocardial injury in patients undergoing major spine surgery: a prospective cohort study

    Research output: Contribution to journalJournal articleResearchpeer-review

  5. Ketamine versus propofol for rapid sequence induction in trauma patients: a retrospective study

    Research output: Contribution to journalJournal articleResearchpeer-review

View graph of relations

BACKGROUND: Myocardial injury after non-cardiac surgery occurs in a high number of patients, resulting in increased mortality in the post-operative period. The use of high inspiratory oxygen concentrations may cause hyperoxia, which is associated with impairment of coronary blood flow. Furthermore, the surgical stress response increases reactive oxygen species, which is involved in several perioperative complications including myocardial injury and death. Avoidance of hyperoxia and substitution of reactive oxygen species scavengers may be beneficial. Our primary objective is to examine the effect of oxygen and added antioxidants for prevention of myocardial injury assessed by area under the curve for troponin measurements during the first three post-operative days.

METHODS: The VIXIE trial (VitamIn and oXygen Interventions and cardiovascular Events) is an investigator-initiated, blinded, 2 × 2 factorial multicentre clinical trial. We include 600 patients with cardiovascular risk factors undergoing major non-cardiac surgery. Participants are randomised to an inspiratory oxygen fraction of 0.80 or 0.30 during and for 2 hours after surgery and either an intravenous bolus of vitamin C and an infusion of N-acetylcysteine or matching placebo of both. The primary outcome is the area under the curve for high-sensitive cardiac troponin release during the first three post-operative days as a marker of the extent of myocardial injury. Secondary outcomes are mortality, non-fatal myocardial infarction and non-fatal serious adverse events within 30 days.

PERSPECTIVE: The current trial will provide further evidence for clinicians on optimal administration of perioperative oxygen in surgical patients with cardiovascular risks and the clinical effects of two common antioxidants.

Original languageEnglish
JournalActa Anaesthesiologica Scandinavica
Volume64
Issue number3
Pages (from-to)400-409
Number of pages10
ISSN0001-5172
DOIs
Publication statusPublished - 1 Mar 2020

ID: 58863008