Dr. Smith's ECG Blog

NOVEMBER 15, 2013

As hours go by, these T inversions always evolve , [unless 1) there is re-occlusion, in which case they go upright and become hyperacute, with or without additional ST elevation, ("pseudonormalize") or 2) no infarction at all (negative troponin, true unstable angina with dynamic T-waves, in which they may normalize). Gottlieb SO, et al.

Chest Pain 52

Chest Pain Thrombosis Myocardial Infarction STEMI 52

All About Cardiovascular System and Disorders

APRIL 13, 2024

This patient had reported with recent onset angina. Value of the electrocardiogram in localizing the occlusion site in the left anterior descending coronary artery in acute anterior myocardial infarction. In that case there was ST depression in I, aVL, II, aVF and V2-V6. ST elevation was 2 mm in aVR and 1 mm in V1. J Am Coll Cardiol.

Stenosis 52

Stenosis Coronary Artery Bypass Graft Coronary Artery Disease Document 52

Dr. Smith's ECG Blog

JANUARY 1, 2013

A middle aged male with no h/o CAD presented with one week of crescendo exertional angina, and had chest pain at the time of the first ECG: Here is the patient's previous ECG: Here is the patient's presenting ED ECG: There is isolated ST depression in precordial leads, deeper in V2 - V4 than in V5 or V6. There is no ST elevation.

STEMI 52

STEMI Ischemia Chest Pain Myocardial Infarction 52

Dr. Smith's ECG Blog

AUGUST 9, 2019

At the bottom of the post, I have re-printed the section on aVR in my article on the ECG in ACS from the Canadian Journal of Cardiology: New Insights Into the Use of the 12-Lead Electrocardiogram for Diagnosing Acute Myocardial Infarction in the Emergency Department Case 1. Updates on the Electrocardiogram in Acute Coronary Syndromes.

Myocardial Infarction 52

Myocardial Infarction Ischemia STEMI Cardiogenic Shock 52

Dr. Smith's ECG Blog

MARCH 11, 2016

A middle-aged woman had intermittent angina for 48 hours, then onset of constant, crushing chest pain for 1.5 More likely, the patient had crescendo angina, with REVERSIBLE ischemia for 48 hours that only became potentially irreversible (STEMI) at that point in time. hours when she called 911. 0 0 1 41 238 MMRF 1 1 278 14.0

Myocardial Infarction 52

Myocardial Infarction Pericarditis STEMI Angina 52

Dr. Smith's ECG Blog

MARCH 6, 2019

This is surprisingly common, and several studies of continuous 12-lead ECG monitoring in the setting of admitted unstable angina report high rates (15%) of silent transient myocardial ischemia (ST elevation), and that these findings were strong independent predictors of MI or death during hospitalization. Patel et al., Krucoff et al.)

STEMI 52

STEMI Chest Pain Ischemia Myocardial Infarction 52

Dr. Smith's ECG Blog

FEBRUARY 6, 2020

The stress electrocardiogram is non-diagnostic. The patient did not report angina with stress. No wall motion abnormality at rest. No wall motion abnormality with stress. Next day, a stress echo was done: The exercise stress echocardiogram is normal.

Chest Pain 40

Chest Pain Ischemia Angina Electrocardiogram 40

Frontiers in Cardiovascular Medicine

JANUARY 8, 2025

BackgroundPainful left bundle branch block (LBBB) syndrome is an uncommon disease that is defined as intermittent episodes of angina associated with simultaneous LBBB changes on an electrocardiogram (ECG) with the absence of flow-limiting coronary artery disease or ischemia on functional testing.

Chest Pain 52

Chest Pain Angina Coronary Artery Disease Blood Pressure 52