ACS Document STEMI 
Dr. Smith's ECG Blog
SEPTEMBER 12, 2024
Because the most severe LAD OMIs can cause ischemic failure of the RBB and LAF, any patient with ACS symptoms and new RBBB and LAFB with any concordant STE has LAD OMI until proven otherwise. There is no recognition of STEMI equivalency in this setting in the USA guidelines currently. Long term outcome is unavailable.
Dr. Smith's ECG Blog
SEPTEMBER 18, 2024
Here is his ED ECG at triage: Obvious high lateral OMI that does not quite meet STEMI criteria. We documented that the majority of stenotic lesions had compensatory enlargement and thus exhibited remodeling. He does have a recently diagnosed PE, and has not been taking his anticoagulation due to cost. He was started on nitro gtt.
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Dr. Smith's ECG Blog
MARCH 27, 2025
Theres ST elevation in V3-4 which meets STEMI criteria, which could be present in either early repolarization, pericarditis or injury. But there are also hyperacute T waves (HATW) in V4-5, which exclude early repolarization and pericarditis, leaving only LAD occlusion for this patient presenting with classic symptoms of ACS.
REBEL EM
MARCH 2, 2023
Based on recent studies, current guidelines recommend that O2 should not be given to non-hypoxemic patients with STEMI or NSTEMI [2,3]. REBEL Cast Ep114 – High Flow O2, Suspected ACS, and Mortality? 4159 patients (10% of total population) had STEMI 30d Mortality: High O2 protocol: 8.8% Low O2 protocol: 3.1%
Dr. Smith's ECG Blog
DECEMBER 11, 2023
Triage documented a complaint of left shoulder pain. Recall from this post referencing this study that "reciprocal STD in aVL is highly sensitive for inferior OMI (far better than STEMI criteria) and excludes pericarditis, but is not specific for OMI." Immediate versus delayed invasive intervention for non-stemi patients.
Dr. Smith's ECG Blog
OCTOBER 12, 2024
Written by Bobby Nicholson What do you think of this “STEMI”? Second, although there is a lot of ST Elevation which meets STEMI criteria, especially in V3-4, the ST segment is extremely upwardly concave with very large J-waves (J-point notching). With EMS, patient had a GCS of 3 and was saturating 60% on room air. Both highly negative.
Dr. Smith's ECG Blog
JUNE 17, 2024
for those of you who do not do Emergency Medicine, ECGs are handed to us without any clinical context) The ECG was read simply as "No STEMI." showed that , when T-waves are inverted in precordial leads, if they are also inverted in lead III and V1, then pulmonary embolism is far more likely than ACS. Kosuge et al. Witting et al.
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