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The Relation Between Optical Coherence Tomography-Detected Layered Pattern and Acute Side Branch Occlusion After Provisional Stenting of Coronary Bifurcation Lesions Fate of post-procedural malapposition of everolimus-eluting polymeric bioresorbable scaffold and everolimus-eluting cobalt chromiummetallic stent in human coronary arteries: sequential assessment with optical coherence tomography in ABSORB Japan trial Volumetric characterization of human coronary calcification by frequency-domain optical coherence tomography Long-term clinical outcome after fractional flow reserve-guided treatment in patients with angiographically equivocal left main coronary artery stenosis Robustness of Fractional Flow Reserve for Lesion Assessment in Non-Infarct-Related Arteries of Patients With Myocardial Infarction Instantaneous Wave-free Ratio versus Fractional Flow Reserve to Guide PCI Two-year outcomes of everolimus vs. paclitaxel-eluting stent for the treatment of unprotected left main lesions: a propensity score matching comparison of patients included in the French Left Main Taxus (FLM Taxus) and the LEft MAin Xience (LEMAX) registries Mortality after coronary artery bypass grafting versus percutaneous coronary intervention with stenting for coronary artery disease: a pooled analysis of individual patient data Use of the Instantaneous Wave-free Ratio or Fractional Flow Reserve in PCI Fractional Flow Reserve–Guided PCI for Stable Coronary Artery Disease

Clinical TrialVolume 39, Issue 29, 1 August 2018, Pages 2730–2739

JOURNAL:Eur Heart J. Article Link

Oxygen therapy in ST-elevation myocardial infarction

R Hofmann, N Witt, B Lagerqvist et al. Keywords: Oxygen;ST-elevation myocardial infarction;Percutaneous coronary intervention; Registry-based randomized clinical trial;Reactive oxygen species;Reperfusion injury

ABSTRACT



AIMS - To determine whether supplemental oxygen in patients with ST-elevation myocardial infarction (STEMI) impacts on procedure-related and clinical outcomes.


METHODS AND RESULTS - The DETermination of the role of Oxygen in suspected Acute Myocardial Infarction (DETO2X-AMI) trial randomized patients with suspected myocardial infarction (MI) to receive oxygen at 6 L/min for 6–12 h or ambient air. In this pre-specified analysis, we included only STEMI patients who underwent percutaneous coronary intervention (PCI). In total, 2807 patients were included, 1361 assigned to receive oxygen, and 1446 assigned to ambient air. The pre-specified primary composite endpoint of all-cause death, rehospitalization with MI, cardiogenic shock, or stent thrombosis at 1 year occurred in 6.3% (86 of 1361) of patients allocated to oxygen compared to 7.5% (108 of 1446) allocated to ambient air [hazard ratio (HR) 0.85, 95% confidence interval (95% CI) 0.64–1.13; P= 0.27]. There was no difference in the rate of death from any cause (HR 0.86, 95% CI 0.61–1.22; P= 0.41), rate of rehospitalization for MI (HR 0.92, 95% CI 0.57–1.48; P= 0.73), rehospitalization for cardiogenic shock (HR 1.05, 95% CI 0.21–5.22; P= 0.95), or stent thrombosis (HR 1.27, 95% CI 0.46–3.51; P= 0.64). The primary composite endpoint was consistent across all subgroups, as well as at different time points, such as during hospital stay, at 30 days and the total duration of follow-up up to 1356 days.


CONCLUSION - Routine use of supplemental oxygen in normoxemic patients with STEMI undergoing primary PCI did not significantly affect 1-year all-cause death, rehospitalization with MI, cardiogenic shock, or stent thrombosis.