Dr. Smith's ECG Blog

JANUARY 1, 2013

Precordial ST depression may be subendocardial ischemia or posterior STEMI. If you thought it might be a posterior STEMI, then you might have ordered a posterior ECG [change leads V4-V6 around to the back (V7-V9)]. So there was 3-vessel disease, but with an acute posterior STEMI. There is no ST elevation. See the list below.

STEMI 52

STEMI Ischemia Chest Pain Myocardial Infarction 52

Dr. Smith's ECG Blog

JUNE 18, 2013

His ECG was repeated at this point: This shows a well developed anterior STEMI. To not see these findings is very common, and this patient would be given the diagnosis of NonSTEMI, with subsequent development of STEMI. It is not a missed STEMI, but it is a missed coronary occlusion. The peak troponin I was over 100.

STEMI 52

STEMI Chest Pain Myocardial Infarction Webinar 52

Dr. Smith's ECG Blog

MARCH 9, 2013

Here is the prehospital ECG, with pain:  Hyperacute anterolateral STEMI  The medics had activated the cath lab and the patient went for angiogram and had a 95% stenotic LAD with TIMI-3 flow. Electrocardiographic diagnosis of reperfusion during thrombolytic therapy in acute myocardial infarction. A stent was placed. de Zwaan C.,

Chest Pain 52

Chest Pain Myocardial Infarction Ischemia Angina 52

Dr. Smith's ECG Blog

MARCH 9, 2023

Barely any STE, and thus not meeting STEMI criteria. Read our recent editorial: Hyperacute T-waves Can Be a Useful Sign of Occlusion Myocardial Infarction if Appropriately Defined. Read our recent editorial: Hyperacute T-waves Can Be a Useful Sign of Occlusion Myocardial Infarction if Appropriately Defined.

Chest Pain 52

Chest Pain STEMI Myocardial Infarction Blog 52

Dr. Smith's ECG Blog

JUNE 28, 2018

Characteristic electrocardiographic pattern indicating a critical stenosis high in left anterior descending coronary artery in patients admitted because of impending myocardial infarction. See these posts for Wellens' mimics: Pseudo-Wellens' Syndrome due to Left Ventricular Hypertrophy (LVH) Anterior STEMI? Am Heart J.

Chest Pain 52

Chest Pain Myocardial Infarction STEMI Article 52

Dr. Smith's ECG Blog

MAY 10, 2023

ng/mL This single initial troponin at this level, in the context of chest pain, is high enough to be diagnostic of acute myocardial infarction. INTERVENTION * Successful angioplasty and stenting (drug eluting) of the mid LAD * Successful angioplasty of the ostial 1st diagonal Learning points: 1. The patient was admitted.

Coronary Angiogram 52

Coronary Angiogram Chest Pain Stenosis STEMI 52

Dr. Smith's ECG Blog

APRIL 8, 2022

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."

Chest Pain 52

Chest Pain SCAD STEMI Blog 52

Dr. Smith's ECG Blog

APRIL 17, 2023

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."

Chest Pain 52

Chest Pain STEMI Document Ischemia 52

Dr. Smith's ECG Blog

OCTOBER 24, 2019

Spontaneous coronary artery dissection Dissection of a coronary artery may occur in the context of atherosclerosis, or be iatrogennic during angiography or angioplasty. A recent study found that SCAD causes almost 20% of STEMI in young women. examined SCAD presenting as STEMI (unlike Hassan et al. A study by Hassan et al.

Chest Pain 52

Chest Pain SCAD STEMI Cardiogenic Shock 52

Dr. Smith's ECG Blog

JUNE 8, 2023

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.

Chest Pain 86

Chest Pain STEMI Bradycardia Myocardial Infarction 86

Dr. Smith's ECG Blog

AUGUST 9, 2019

When total LM occlusion does present with STE in aVR, there is ALWAYS ST Elevation elsewhere which makes STEMI obvious; in other words, STE is never limited to only aVR but instead it is part of a massive and usually obvious STEMI. All are, however, clearly massive STEMI. This is her ECG: An obvious STEMI, but which artery?

Myocardial Infarction 52

Myocardial Infarction Ischemia STEMI Cardiogenic Shock 52

Dr. Smith's ECG Blog

OCTOBER 22, 2024

Unfortunately, the cardiologist waited until the next day to refer the patient for angiography and intervention because patient did not meet criteria for "STEMI"." Successful primary angioplasty of the mid-circumflex artery towards the main marginal branch with the implantation of a drug-eluting stent. Good angiographic result.

Chest Pain 65

Chest Pain STEMI Myocardial Infarction Angioplasty 65

Dr. Smith's ECG Blog

NOVEMBER 19, 2014

Here are three more dramatic cases that illustrate RBBB + LAFB Case 1 of cardiac arrest with unrecognized STEMI, died. Furthermore, among 35 patients with acute left main coronary artery occlusion, 9 presented with RBBB (mostly with LAH) on the admission ECG.

Chest Pain 52

Chest Pain Cardiac Arrest Myocardial Infarction Angioplasty 52

Dr. Smith's ECG Blog

SEPTEMBER 29, 2018

The lesion was intervened on with balloon angioplasty and had subsequent TIMI 3 flow. Acute myocardial infarction in patients with dialysis Patients on dialysis have a well studied history of underdiagnosis and undertreatment for acute myocardial infarction. There was initially TIMI 0 flow. What can we learn?

Chest Pain 52

Chest Pain Myocardial Infarction Cardiac Arrest Ischemia 52

Dr. Smith's ECG Blog

NOVEMBER 11, 2022

Code STEMI was activated. A man in his 80s with chest pain What, besides large anterior STEMI, is so ominous about this ECG? Primary angioplasty in acute myocardial infarction with right bundle branch block: should new onset right bundle branch block be added to future guidelines as an indication for reperfusion therapy?

Chest Pain 52

Chest Pain Cardiogenic Shock Tachycardia Ischemia 52

Dr. Smith's ECG Blog

APRIL 2, 2025

A comparison of electrocardiographic changes during reperfusion of acute myocardial infarction by thrombolysis or percutaneous transluminal coronary angioplasty. Electrocardiographic diagnosis of reperfusion during thrombolytic therapy in acute myocardial infarction. Am Heart J 2000;139(3):4306. A stent was placed.

Chest Pain 75

Chest Pain STEMI Myocardial Infarction Stents 75