Dr. Smith's ECG Blog

APRIL 2, 2024

Then I always look to see if the initial deflection of the QRS has a lot of voltage change per change in time (seen in tachycardias that are initiated from above the ventricle because the propagate through fast conducting purkinje fiber. Tachycardia exaggerates ST Elevation in LBBB and Paced rhythm 5. Pacemaker mediated tachycardia!

Tachycardia 133

Tachycardia Pacemaker Cardiac Arrest Cardiomyopathy 133

Dr. Smith's ECG Blog

JANUARY 2, 2025

See this post: How a pause can cause cardiac arrest 2. Place temporary pacemaker 3. Even with tachycardia and a paced QRS duration of ~0.16 The plan: 1. Discontinue all negative chronotropic agents, since the risk of torsade is much higher with bradycardia or pauses. Discontinue amiodarone, since it prolongs the QT 4.

Tachycardia 116

Tachycardia Cardiomyopathy Blog Bradycardia 116

Dr. Smith's ECG Blog

APRIL 29, 2020

A 60-something woman presented after a witnessed cardiac arrest. This is commonly found after epinephrine for cardiac arrest, but could have been pre-existing and a possible contributing factor to cardiac arrest. Final Diagnosis: Cardiac Arrest due to Torsades from long QT of unknown etiology.

Cardiac Arrest 52

Cardiac Arrest Defibrillator Ischemia Tachycardia 52

Dr. Smith's ECG Blog

OCTOBER 23, 2023

Edited by Bracey, Meyers, Grauer, and Smith A 50-something-year-old female with a history of an unknown personality disorder and alcohol use disorder arrived via EMS following cardiac arrest with return of spontaneous circulation. T wave alternans is a harbinger of cardiac instability and TdP. (3) No ischemic ST changes.

Tachycardia 131

Tachycardia Cardiac Arrest ICU Blog 131

Ken Grauer, MD

JULY 9, 2023

Blood was drawn , and the patient was promptly placed in a room to be seen — but on entering, the ED physician found her unresponsive in cardiac arrest. Do you see any indication on this ECG of WHY this patient was about to arrest? Is there any indication on this ECG of WHY this patient shortly after had a cardiac arrest?

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Blog Cardiac Arrest Pulmonary AFIB 78

Dr. Smith's ECG Blog

JULY 21, 2024

This progressed to electrical storm , with incessant PolyMorphic Ventricular Tachycardia ( PMVT ) and recurrent episodes of Ventricular Fibrillation ( VFib ). If there had been — a temporary atrial pacemaker could have been considered as a way of increasing the heart rate to suppress a bradycardia-dependent arrhythmia ("overdrive pacing").

Arrhythmia 131

Arrhythmia Cardiogenic Shock Bradycardia Defibrillator 131

Wellnest

DECEMBER 21, 2022

A fast heartbeat is called tachycardia, while a slow heartbeat is called bradycardia in medical terms. Cardiac arrest Cardiac arrest is a medical emergency in which the heart stops pumping blood to the body. Electrocardiogram, echocardiogram, and some other tests are done for patients with cardiac arrest.

Cardiac Arrest 52

Cardiac Arrest Heart Attack Heart attacks Atrial Fibrillation 52