Dr. Smith's ECG Blog

JUNE 5, 2024

IMPRESSION: The finding of sinus bradycardia with 1st-degree AV block + marked sinus arrhythmia + the change in PR interval from beat #5-to-beat #6 — suggests a form of vagotonic block ( See My Comment in the October 9, 2020 post in Dr. Smith's ECG Blog ). Initial high sensitivity troponin I returned at 6ng/L (normal 0.20

Chest Pain 101

Chest Pain Cardiac Arrest Blog Cardiomyopathy 101

Ken Grauer, MD

JANUARY 20, 2024

Looking first at the long-lead II rhythm strip — there is significant bradycardia , with a heart R ate just under 40/minute. But the point to emphasize — is that it should only take seconds to recognize that there is bradycardia from significant AV block. = Would you approve her for a nonemergent surgical procedure?

Blog 95

Blog Bradycardia STEMI Download 95

All About Cardiovascular System and Disorders

MAY 2, 2024

Athlete’s bradycardia due to increased parasympathetic tone and decreased sympathetic tone is a well-known observation. Though sinus bradycardia is usual, other abnormalities like sinus arrhythmia, sinus arrest, wandering atrial pacemaker and coronary sinus rhythm have been described. 2012 Jun;98(12):947-55.

Exercise 40

Exercise Cardiomyopathy Blood Pressure Physiology 40

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 ). Baseline bradycardia in endurance athletes limits the use of ß-blockers. 25, 2022 ).

Atrial Fibrillation 52

Atrial Fibrillation AFIB Arrhythmia Exercise 52

Dr. Smith's ECG Blog

JANUARY 21, 2023

This ECG shows a sinus bradycardia with a normal conduction pattern (normal PR, normal QRS, and normal QTc), normal axis, normal R-wave progression, normal voltages. Hypothermia can also produce bradycardia and J waves, with a pseudo-STEMI pattern. ECG met STEMI criteria and was labeled STEMI by computer interpretation.

STEMI 52

STEMI Bradycardia Arrhythmia Cardiac Arrest 52

Dr. Smith's ECG Blog

OCTOBER 8, 2023

The rhythm is uncertain ( ie, We only see 4 beats — because the same 4 beats are repeated in limb and chest leads — but in lead II there appears to be sinus bradycardia and arrhythmia plus a P wave with a PR interval too short to conduct preceding beat #1 — therefore need for a longer period of monitoring ).

Ischemia 103

Ischemia Chest Pain Cardiogenic Shock Cardiac Arrest 103

Dr. Smith's ECG Blog

MAY 6, 2019

Bradycardia. Electrocardiol 45:433-442, 2012 ). Finally — a detailed family history ( for early sudden death ) + a careful personal history ( for syncope/presyncope; malignant arrhythmia ) is in order. Acute febrile illness. Variations in autonomic tone. Hypothermia. Electrolyte imbalance ( hypokalemia; hyperkalemia ).

Chest Pain 52

Chest Pain STEMI Ischemia Myocardial Infarction 52