Dr. Smith's ECG Blog

JUNE 5, 2024

The ECG does not show any definite signs of ischemia. Uncontrolled coronary spasm may be associated with serious arrhythmias , including cardiac arrest ( Looi et al — Postgrad Med, 2012 ; Tan et al — Eur Heart J Case Rep, 2018 ; Chevalier et al — JACC, 1998 ; Rodriguez-Manero — EP Europace, 2018 ).

Chest Pain 101

Chest Pain Cardiac Arrest Blog Cardiomyopathy 101

Dr. Smith's ECG Blog

OCTOBER 8, 2023

Remember, in diffuse subendocardial ischemia with widespread ST-depression there may b e ST-E in lead s aVR and V1. There are well formed R-waves with good voltage/amplitude which is uncommon for ischemia. Smith: This bizarre ECG looks like a post cardiac arrest ECG with probable acidosis or hyperkalemia in addition to OMI.

Ischemia 103

Ischemia Chest Pain Cardiogenic Shock Cardiac Arrest 103

Dr. Smith's ECG Blog

JANUARY 21, 2023

Occurrence of “J Waves” in 12-Lead ECG as a Marker of Acute Ischemia and Their Cellular Basis. Europace 2012 Shinde R, Shinde S, Makhale C, Grant P, Sathe S, Durairaj M, Lokhandwala Y, Di Diego J, Antzelevitch C. Occurrence of "J waves" in 12-lead ECG as a marker of acute ischemia and their cellular basis.

STEMI 52

STEMI Bradycardia Arrhythmia Cardiac Arrest 52

Dr. Smith's ECG Blog

MAY 6, 2019

Followup ECG: No Change Absence of evolution is the best evidence against ischemia as the etiology. I was taught that the tell-tale sign of ischemia vs an electrical abnormality was in the hx, i.e. chest pain for the ischemia and potential syncope for brugada. Ischemia/infarction. Electrocardiol 45:433-442, 2012 ).

Chest Pain 52

Chest Pain STEMI Ischemia Myocardial Infarction 52

Dr. Smith's ECG Blog

JULY 22, 2023

These include ( among others ) — acute febrile illness — variations in autonomic tone ( as may occur with syncope ) — hypothermia — ischemia or infarction — cardiac arrest — and electrolyte disorders ( especially hyperkalemia — but also hypokalemia/hyponatremia ). Circulation, 117, 1890–1893. [3]: Fever and Brugada syndrome.

Chest Pain 64

Chest Pain Heart Rhythm Sudden Cardiac Death Dysrhythmia 64

Dr. Smith's ECG Blog

JANUARY 30, 2019

In addition to a spontaneous or induced Brugada-1 ECG pattern, criteria for B rugada S yndrome require one or more of the following: History of cardiac arrest, of polymorphoic VT, or of non-vagal syncope — positive family history of sudden death at an early age — a similar ECG in close relatives. Circulation, 117, 1890–1893. [3]:

Heart Rhythm 52

Heart Rhythm Sudden Cardiac Death Arrhythmia STEMI 52