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This ECG together with these symptoms is certainly concerning for OMI, but the ECG is not fully diagnostic, and another consideration could be acute pericarditis. Mistaking OMI for pericarditis is a much more harmful error than the converse. The rate is tachycardic, which is uncommon in OMI and common in pericarditis.
mm has been described in normal subjects) Overall impression: In my opinion and experience, this ECG most likely represents a normal baseline ECG, but with a small chance of pericarditis instead. I texted this to Dr. Smith without any information, and this was his reply: "This could be pericarditis but probably is normal variant."
This is a 45 yo male who had an inferior STEMI 6 months prior, was found to have severe LAD and left main disease, and was supposed to be set up for CABG a few weeks later, but did not follow up. But it could be anterior STEMI. 40% of anterior STEMI has upward concavity in all of leads V2-V6. is likely anterior STEMI).
Thus, this is both an anterior and inferior STEMI. How old is this antero-inferior STEMI? Although acute anterior STEMI frequently has narrow QR-waves within one hour of onset (1. Armstrong et al.)], the presence of such well developed anterior Q-wave suggests completed transmural STEMI. Could it be acute (vs.
Thus, this is BOTH an anterior and inferior STEMI in the setting of RBBB. How old is this antero-inferior STEMI? Although acute anterior STEMI frequently has narrow QR-waves within one hour of onset (1. the presence of such well developed, wide, anterior Q-wave suggests completed transmural STEMI. Could it be acute (vs.
06:44 - T-waves in V2 are smaller now - Overall resolution of prior findings (which qualifies as a dynamic change) The initial note by the cardiologist states that the presentation is more consistent with pericarditis. Remember, pericarditis is the thing you say and write down when youre actively trying to miss an OMI.
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." Her contrast enhanced echocardiogram is shown below in the parasternal short axis view. The case continues. link] Bischof, J.
PR depression, which suggests pericarditis 4. We also showed that, of 47 cases of pericarditis with ST elevation, none had ST depression in aVL. ) The patient underwent an emergent formal echocardiogram to look for wall motion abnormality: The estimated left ventricular ejection fraction is 63 %. No wall motion abnormality.
Smith : there is some minimal ST elevation in V2-V6, but does not meet STEMI criteria. Transient STEMI has been studied and many of these patients will re-occlude in the middle of the night. Is it normal STE? The computer thinks so, and the physician thinks that is quite possible. However , there is terminal QRS distortion in lead V3.
These latter findings are typical of pericarditis, but pericarditis never has reciprocal ST depression. Elevated troponins prompted an echocardiogram — which revealed an apical wall motion abnormality (WMA). Usually with pericarditis and myocarditis — hyperacute T waves (HATW) are not present.
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." Echocardiogram showed severe RV dilation with McConnell’s sign and an elevated RVSP. If this EKG were handed to you to screen from triage without any clinical information, what would you think?
Discharge Diagnosis was STEMI (The STE did not meet "criteria," so "OMI" would be better, but "STEMI" is far better than what this could have been called: NonSTEMI) Quotes from a note written by a really fine and knowledgable physician: "12-lead EKG was obtained initial 1 at time zero. Initial troponin came back negative."
There is ST depression in II, III, and aVF that is concerning for reciprocal depression from high lateral STEMI in aVL, where there is some ST elevation. There is also ST depression in precordial leads, greatest in V3 and V4, concerning for posterior STEMI. The patient died is spite of resuscitative efforts. It is found on 1% to 3.5%
The emergency medicine physician documented, "His initial EKG is riddled with artifact and difficult to interpret but does not look like a STEMI." The ECG remains positive for STEMI by GE. Echocardiogram was finally performed five hours after the first diagnostic ECG. The emergency physician consulted cardiology.
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