Case reports from Michael Rosengarten

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This case report is kindly provided by Michael Rosengarten from McGill and is part of the McGill Cases. These cases come from the McGill EKG World Encyclopedia.

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Conduction Abnormalities

Intraventricular conduction defect

Right Bundle Branch Block

Left Bundle Branch Block

Left Anterior Fasicular Block

Left Posterior Fasicular Block

Bifasicular block

Right bundle branch block with left anterior hemi-block

Right bundle branch block with left posterior hemi-block

Alternating Bundle Branch Block

Trifasicular block

A/V Blocks

First degree block:

Second degree block

Mobitz I

Mobitz II

Complete heart block

Sinus Node Block:


Supraventricular Arrhythmias

Sinus pauses

Premature atrial complexes

Atrial fibrillation

Supraventricular Tachycardia

Without block
With block

Atrial Flutter

Nodal Rhythm:

Accelerated nodal rhythm

Wolf Parkinson White

Other atrial rhythms

Ventricular Arrhythmias

Premature Complexes


Ventricular Tachycardia

Ventricular Fibrillation

Implanted Devices

Cardiac Pacemakers

Examples of different pacing modes

DDD pacemakers
Atrial pacing
Ventricular Pacing

Pacing conduction patterns

Pacemaker interactions

Pacemaker Pacing Artifacts

Pacemaker Follow-up

Unusual rhythms
Threshold Testing
Atrial threshold testing
Strength duration curves
Time dependent capture
Pacemaker system failure
Trans-telephonic EKG recordings
Trans-telephonic Audio recordings

Defibrillation and Cardioversion

External Cardioversion/defibrillation
Implantable Defibrillators
Threshold Testing

ECG Recordings

The Normal ECG

Super Puzzler