This site uses cookies to improve your experience. To help us insure we adhere to various privacy regulations, please select your country/region of residence. If you do not select a country, we will assume you are from the United States. Select your Cookie Settings or view our Privacy Policy and Terms of Use.
Cookie Settings
Cookies and similar technologies are used on this website for proper function of the website, for tracking performance analytics and for marketing purposes. We and some of our third-party providers may use cookie data for various purposes. Please review the cookie settings below and choose your preference.
Used for the proper function of the website
Used for monitoring website traffic and interactions
Cookie Settings
Cookies and similar technologies are used on this website for proper function of the website, for tracking performance analytics and for marketing purposes. We and some of our third-party providers may use cookie data for various purposes. Please review the cookie settings below and choose your preference.
Strictly Necessary: Used for the proper function of the website
Performance/Analytics: Used for monitoring website traffic and interactions
However, whether immediate blood glucose and FIB levels affect coronary blood flow during primary percutaneous coronary intervention (PCI) remains unclear.ObjectiveTo explore the correlation between admission blood glucose (ABG), fibrinogen (FIB) and slow blood flow during primary PCI for acute ST segment elevation myocardialinfarction (STEMI).MethodsA
A 60 yo with 2 previous inferior (RCA) STEMIs, stented, called 911 for one hour of chest pain. Here is his most recent previous ECG: This was recorded after intervention for inferior STEMI (with massive ST Elevation, see below), and shows inferior Q-waves with T-wave inversion typical of completed inferior OMI. ng/mL (quite large).
The ECG did not meet STEMI criteria, and the final cardiology interpretation was “ST and T wave abnormality, consider anterior ischemia”. There’s only minimal ST elevation in III, which does not meet STEMI criteria of 1mm in two contiguous leads. But STEMI criteria is only 43% sensitive for OMI.[1]
Cath lab declined as it is not a STEMI." And now this finding is even formally endorsed as a "STEMI equivalent" in the 2022 ACC guidelines!!! Another myocardial wall is sacrificed at the altar of the STEMI/NonSTEMI mindset. Opiates are associated with worse outcomes in MyocardialInfarction.
Introduction Elevated peak cardiac troponin levels have been linked with increased morbidity and mortality in patients with acute myocardialinfarction (AMI). Methods Clinical data from patients admitted to the cardiology division between 2018 and 2022, who were diagnosed with AMI and underwent an IPF testing.
The interventional cardiologist then canceled the activation and returned the patient to the ED without doing an angiogram ("Not a STEMI"). I advised that perhaps posterior leads would help to persuade the interventionalist, since the 2022 ACC recommendations include posterior STEMI as a formal STEMI equivalent, but only officially by 0.5
I sent this to the Queen of Hearts So the ECG is both STEMI negative and has no subtle diagnostic signs of occlusion. Non-STEMI guidelines call for “urgent/immediate invasive strategy is indicated in patients with NSTE-ACS who have refractory angina or hemodynamic or electrical instability,” regardless of ECG findings.[1]
Cardiogenic shock (CS)is the most feared event following STEMI. We tend to perceive CS as an exclusive complication of STEMI. The incidence is half of that of STEMI, i.e., 2.5-5%. might show little elevation with considerable overlap of left main STEMI vs NSTEMI ) 2.Onset 2022 Jun 20;11(12):3558. Reference 1.Martínez
Subtle as a STEMI." (i.e., Here is the bottom line of the article: It is widely believed that hyperacute T-waves are a transitional state preceding ST Elevation 1–4 Thus, it is tempting to postulate that early cases of OMI will eventually evolve to STEMI; yet, our data contradicts that notion. This one is easy for the Queen.
Patient still not having chest pain however this is more concerning for OMI/STEMI. Wellens' syndrome is a syndrome of Transient OMI (old terminology would be transient STEMI). A comparison of electrocardiographic changes during reperfusion of acute myocardialinfarction by thrombolysis or percutaneous transluminal coronary angioplasty.
This is a value typical for a large subacute MI, n ormal value 48 hours after myocardialinfarction is associated with Post-Infarction Regional Pericarditis ( PIRP ). Mechanical complications secondary to myocardialinfarction are infrequent due to most patients receiving revascularization quite rapidly.
This is diagnostic of infero-posterior OMI, but it is falsely negative by STEMI criteria and with falsely negative posterior leads (though they do show mild ST elevation in V4R). They were less likely to have STEMI on ECG, and more likely to be initially diagnosed as non-ACS. Circulation 2007 2. Khan et al.
The Minneapolis Heart Institute Foundation (MHIF) is presenting leading research focused on trends in ST-elevation myocardialinfarction (STEMI), the most severe form of a heart attack, at the American College of Cardiology’s Annual Scientific Session (ACC.24), 24), being held April 6-8 in Atltanta, GA.
associated typical MyocardialInfarction therapies such as statins and ACE inhibitors with significantly decreased 1 year mortality in MINOCA patients, which suggests that they do indeed have a similar pathophysiology to MI patients with obstructive coronary disease. MINOCA I do not have the bandwidth here to write a review of MINOCA.
Here is his ED ECG at triage: Obvious high lateral OMI that does not quite meet STEMI criteria. Thus, it has recently become generally accepted that most plaque ruptures resulting in myocardialinfarction occur in plaques that narrow the lumen diameter by 40% of the arterial cross section may be involved by plaque.
Notice on the right side of the image how the algorithm correctly measures STE sufficient in V1 and V2 to meet STEMI criteria in a man older than age 40. As most would agree, this ECG shows highly specific findings of anterolateral OMI, even with STEMI criteria in this case. Thus, this is obvious STEMI(+) OMI until proven otherwise.
There is an obvious inferior posterior STEMI(+) OMI. Literature cited In inferior myocardialinfarction, neither ST elevation in lead V1 nor ST depression in lead I are reliable findings for the diagnosis of right ventricular infarction Johanna E. What is the atrial activity? Is it sinus arrest with junctional escape?
Step 1 to missing posterior MI is relying on the STEMI criteria. A prospective validation of STEMI criteria based on the first ED ECG found it was only 21% sensitive for Occlusion MI, and disproportionately missed inferoposterior OMI.[1] But it is still STEMI negative. A 15 lead ECG was done (below). In a study last year, 14.4%
They recorded a third ECG before intervention: No significant difference Angiogram : Impression and Recommendations: Culprit for the patient's non-ST elevation myocardialinfarction is a thrombotic occlusion of the mid circumflex Formal Echo Normal left ventricular cavity size, normal wall thickness and normal LV systolic function.
So we activated the Cath Lab Angiogram: Impression and Recommendations: Culprit for the patient's anterior ST segment myocardialinfarction and out of hospital V-fib cardiac arrest is a thrombotic occlusion of the mid LAD The first troponin returned barely elevated at 36 ng/L (URL = 35) In our study of initial troponin in STEMI, 26.8%
But because there was no new ST elevation, the ECG was signed off as “STEMI negative” and the patient waited to be seen. This confirms these Q waves are caused by an acute infarct. But the ECG still doesn’t meet STEMI criteria. Smith : Normal ST Elevation in V2-V4 never has an associated Q-wave! the computer interpretation 2.
This has been termed a “STEMI equivalent” and included in STEMI guidelines, suggesting this patient should receive dual anti-platelets, heparin and immediate cath lab activation–or thrombolysis in centres where cath lab is not available. aVR ST segment elevation: acute STEMI or not? aVR ST Segment Elevation: Acute STEMI or Not?
While this ECG is negative for “posterior STEMI”, the resolution of anterior ST depression (accompanied by the troponin elevation) confirms posterior OMI with spontaneous reperfusion. The second opportunity to make the diagnosis and expedite angiography was missed because the ECG never met STEMI criteria and continued to be labeled ‘normal.’
J Electrocardiol [Internet] 2022;Available from: [link] Cardiology opinion: Takotsubo Cardiomyopathy (EF 30-35%) V Fib Cardiac arrest Prolonged QTC NSTEMI (Smith comment: is it NSTEMI or is it Takotsubo? -- these are entirely different) Moderate single-vessel CAD. Reference on Troponins: Xenogiannis I, Vemmou E, Nikolakopoulos I, et al.
But it doesn’t meet STEMI criteria, and was not identified by the computer or the over-reading cardiologist. Still no WPW pattern, and more obvious inferoposterior OMI, but still STEMI negative. The emergency physician wasn’t sure what to make of the changes from one ECG to the next but was concerned about ACS. What do you think?
The ECG was read as "No STEMI" and the patient was treated like an average chest pain patient (despite the fact that a chest pain patient with active pain and active subendocardial ischemia is very high risk). A New ST-segment elevation myocardialinfarction equivalent pattern? Published 2022 Feb 20. Eur J Emerg Med.
The ECG is diagnostic of occlusion myocardialinfarction (OMI). It definitely does not fulfill STEMI criteria, and I would argue that it would not lead to cath lab activation in most centers. The overall read is OMI with HIGH confidence. == Below is the ECG of Patient #2 — as interpreted by the QOH.
The ECG in ER is shown below: ECG is still diagnostic but we are watching the natural course of myocardialinfarction here. Considerations on the naming of myocardialinfarctions. 2022 Mar-Apr;71:44-46. Epub 2022 Jan 31. He arrived to our hospital one hour later. J Electrocardiol. 2022.01.006. 2021.21026.
I knew that, if the patient had presented with chest discomfort, that this ECG is diagnostic of inferior posterior OMI, even though it is not a STEMI. Unusual and puzzling, as there was a large focal acute MI) Final Diagnosis: Acute MI, Non ST Elevation MyocardialInfarction.
The HEART and EDACS scores are helpful to risk stratify patients with chest pain, but they hinge on accurate ECG interpretation: a low score doesn’t apply if the ECG shows STEMI(+)OMI, and shouldn’t be used for STEMI(-)OMI or OMI reperfusion either 2. American Journal of Emergency Medicine 2022 4. Am J Med 2021 5. Lancet 2015 6.
Although not striking, this is clearly a diagnostic ECG for infero"posterior" myocardialinfarction due to coronary occlusion (OMI), most likely due to left circumflex (LCx) artery occlusion. mm STE even in the fourth universal definition of myocardialinfarction. Considerations on the naming of myocardialinfarctions.
V5-V6) of any amplitude, is specific for Occlusion MyocardialInfarction (vs. OMI that are not STEMI can be very subtle and difficult to diagnose even though the findings are very specific. OMI that are not STEMI can be very subtle and difficult to diagnose even though the findings are very specific.
The Queen of Hearts correctly says: Smith : Why is this ECG which manifests so much ST Elevation NOT a STEMI (even if it were a 60 year old with chest pain)? Physician interpretation: "No STEMI." Physician: "No STEMI." Cardiologist interpretation: "Technically does not meet STEMI criteria but concerning for ischemia."
There is clearly sufficient STE for STEMI criteria in leads V2 and aVL, but lead I has less than 1.0 mm of STE - thus, technically this ECG does not meet STEMI criteria, although it is a quite obvious OMI. This ECG was immediatel y discussed with the on-call cardiologist who said the ECG was "concerning but not a STEMI."
2022 Jan;51:384-387. Available from: [link] Excerpt: "To illustrate the limitations imposed by sample size, recent data from our institution reveal that we identify approximately 225 type I myocardialinfarctions (MI) in a typical year. Of the Non-STEMI in our cohort, about 25% will actually have acute coronary occlusion.
Here is the repeat ECG at 52 minutes after arrival to triage: Obvious posterolateral STEMI Angiographic findings: 1. 2022 ACC expert consensus decision pathway on the evaluation and disposition of acute chest pain in the emergency department: A report of the American college of cardiology solution set oversight committee. •
The important point for our purposes is that they do no represent myocardialinfarction. Anterior STEMI? Please see My Comment at the bottom of the page in the April 17, 2022 post of Dr. Smith's Blog — for concise review on how to quickly recognize too-high placement of the lead V1 and V2 electrodes.
ng/mL This single initial troponin at this level, in the context of chest pain, is high enough to be diagnostic of acute myocardialinfarction. Thus, Wellens' syndrome should be thought of as a transient OMI or transient STEMI. Transient STEMI is at high risk of re-occlusion. Her initial cTnI returned at 0.25
See our publication: ST depression in lead aVL differentiates inferior ST-elevation myocardialinfarction from pericarditis There is STE in inferior leads, high lateral leads, and V4-V6. Smith and Meyers to diagnose both obvious (STEMI) and subtle OMI. And there is ST depression in V2 and V3, all but diagnostic of posterior OMI.
Occlusion myocardialinfarction is a clinical diagnosis Written by Willy Frick (@Willyhfrick). 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." The case continues. Worrall, C.,
Immediate and early percutaneous coronary intervention in very high-risk and high-risk Non-STEMI patients. Clin Cardiol 2022; [link] Labs included: hsTnI 156 ng/L, Hb 12 g/dL, WBC 12x10^9/L, Cr. Association between opioid analgesia and delays to cardiac catheterization of patients with occlusion MyocardialInfarctions.
Ischemic ST-Segment Depression Maximal in V1-V4 (Versus V5-V6) of Any Amplitude Is Specific for Occlusion MyocardialInfarction (Versus Nonocclusive Ischemia). Recall that air is a poor conductor of electricity and will, therefore, generate smaller amplitudes on posterior leads (hence why STEMI criteria requires only >0.5
The limb leads have been removed because there was no ST elevation in those leads, the QRS complexes have been obscured because this is irrelevant to STEMI criteria, and red lines have been added to measure ST segment elevation. But STEMI criteria ignore all this and look at ST segments in isolation.
STEMI negative : the EMS automated interpretation read, “STEMI negative. Inferior infarct, age undetermined. According to the STEMI paradigm, the patient doesn’t have an acute coronary occlusion and doesn't need emergent reperfusion, so the paramedics can bring them to the ED for assessment, without involving cardiologists.
We organize all of the trending information in your field so you don't have to. Join thousands of users and stay up to date on the latest articles your peers are reading.
You know about us, now we want to get to know you!
Let's personalize your content
Let's get even more personalized
We recognize your account from another site in our network, please click 'Send Email' below to continue with verifying your account and setting a password.
52 
Let's personalize your content