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 132

Tachycardia Pacemaker Cardiac Arrest Cardiomyopathy 132

DAIC

DECEMBER 14, 2023

The researchers were able to show that those who had been ill with COVID-19 could also suffer from heart rhythm disturbances, both in the form of so-called tachycardias , when the heart ha rate is high, and bradyarrhythmias , when the heart is slow so that a pacemaker is sometimes needed.

COVID-19 111

COVID-19 Heart Rhythm Atrial Fibrillation Blood Clot 111

Dr. Smith's ECG Blog

OCTOBER 19, 2022

(Ken Grauer points out that this 5th beat appears to be due to an early atrial beat and that these early beats continue for a few beats, suggesting a short run of atrial tachycardia.) Our electrophysiologists give an example of this here: "Asynchronous" mode means that the pacemaker will pace regardless of what the native beats are doing.

Pacemaker 52

Pacemaker Physiology ICU Blog 52

Dr. Smith's ECG Blog

JANUARY 23, 2024

Shortly after isoprenalin infusion was initiated, there were short runs of ventricular tachycardia. Isoprenalin was discontinued, and a temporary transveous pacemaker was implanted. The patient stabilized following pacemaker placement. The following ECG was recorded during one of these episodes of VT.

Tachycardia 88

Tachycardia Arrhythmia Heart Disease Sudden Cardiac Death 88

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 117

Arrhythmia Cardiogenic Shock Bradycardia Defibrillator 117

Dr. Smith's ECG Blog

JULY 19, 2024

2021;Available from: [link] Other references: Lindow T, Mokhtari A, Nyström A, Koul S, Smith SW, Ekelund U. KEY Point: It is at times challenging trying to answer the seemingly simple question of whether the ECG in front of us is ( or is not ) from a patient with a pacemaker! Ann Emerg Med [Internet].

Chest Pain 106

Chest Pain Myocardial Infarction Pacemaker STEMI 106

Journal of Cardiovascular Electrophysiology

DECEMBER 1, 2023

Patients with SP or AVB, 21 years of age or younger, who underwent CNA between 2015 and 2021 were included. with one documented SP after termination of atrial tachycardia at the 3-month follow-up. Objective Describe the methodology and role of CNA for treatment of pediatric patients with functional AVB or SP. The median age was 18.9

Pediatrics 40

Pediatrics Document Bradycardia Pacemaker 40