Index
Ep Defined | Getting Started | Working in the EP Lab
Right Atrium | Right Ventricle | Left Atrium | Left Ventricule | Cardiac Conduction | Cardiac Cell Properties | Action Potential | Sympathetic or Not | Med Page
Electrograms Defined | Recording Modes | Electrode Spacing | Filters | EGM Interpretation | Arrhythmia Analysis
The Physical Lab | Tools of the Trade
Setting Up | Catheter Placement | Baseline Measurement | SNRT | Conduction Study | Arrhythmia Induction | Pacing Protocols | Ablation | Tilt Table | Secrets to Success
Bradycardia | Atrial Tach | Atrial Flutter | Atrial Fibrillation | AVNRT | AVRT | Ventricular Tachycardia
Surface ECG's | Intracardiac Questions | Med Challenge | Advanced

Cardiac Arrhythmias

...An Irregularity

Webster's New Twentieth Century Dicationary defines arrhythmia as "an irregularity in the rhythm of the heartbeat". I have spent a little time thinking about this seemingly simple statement. While it is true that all arrhythmias are irregularities in the cardiac rhythm, it just doesn't seem appropriate to describe all cardiac arrhythmias with such a simple phrase. Given the wide variety of the abnormal rhythms that we see in the EP Lab, it would seem that we could find better words or phrases to describe arrhythmias. Just take a moment and consider some of the ways we can describe irregular heart rhythms; annoying, irritating, uncomfortable, scary, interesting, complex, varied, mysterious, erratic and even life changing. Arrhythmias are all these things and so much more.

The study of these irregular rhythms and how to treat them has grown into one of the more complex fields of medicine.

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