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 122

Chest Pain Blog Cardiac Arrest Cardiomyopathy 122

All About Cardiovascular System and Disorders

NOVEMBER 16, 2023

Mechanism is thought to be due to sustained sympathetic stimulation, probably caused by dysfunction of insular cortex resulting in reversible neurogenic damage to the myocardium which could include contraction bands and subendocardial ischemia [2]. 2012 Dec;7(4):290-4. 2012 Dec;7(4):290-4. Maedica (Bucur). Maedica (Bucur).

Hemorrhage 52

Hemorrhage Myocardial Infarction Aneurysm Electrocardiogram 52

Dr. Smith's ECG Blog

MARCH 15, 2023

IF the Patient is Younger and Athletic: The mechanism of AFib in younger, athletic individuals is often heavily influenced by increased vagal tone ( Rao and Shipon — ACC, 2019 — and — Calvo et al — Br J Sports Med, 2012 ). Note fairly marked irregularity of the R-R interval — indicative of definite sinus arrhythmia. 25, 2022 ).

Atrial Fibrillation 52

Atrial Fibrillation AFIB Arrhythmia Exercise 52

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. The ECG does not show any signs of ischemia. True Positive ECG#2 : Also sinus rhythm. There is ST depression in V1.

Ischemia 122

Ischemia Chest Pain Cardiogenic Shock Cardiac Arrest 122

Dr. Smith's ECG Blog

SEPTEMBER 2, 2024

There are a number of things to look for in an ECG that can hint at arrhythmia as the cause of an apparent seizure. In my experience, the pathologic finding in the above ECG is the easiest one to overlook — especially if you are in a rush and do not do a systematic review. Learning Points: LQTS can have normal QTc. mEq/L for K+ and 1.76

Tachycardia 113

Tachycardia Blog Sudden Cardiac Death Arrhythmia 113

Dr. Smith's ECG Blog

JULY 22, 2023

Prior to Mizusawa's study, it was thought that the incidence of syncope, arrhythmia, or SCD in this cohort was low [7]. In light of the risk of arrhythmia events observed in the Mizusawa trial, a formal EP study might be reasonable to obtain in those with fever induced asymptomatic Brugada ECG changes to help risk stratify these patients.

Chest Pain 92

Chest Pain Heart Rhythm Sudden Cardiac Death Dysrhythmia 92

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