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

Study Area - Intracardiac

Intracardiac Electrogram Questions

The following questions deal with intracardiac electrograms.
Select the question from the table at the left and review the question and the recorded electrogram(s) associated with the question.
When you feel you have answered the question correctly, click on answer to see my own interpretation of the information provided.

Question 6
This patient presented to the EP lab with a 12 lead electrocardiogram with negative delta waves in V1 and positive delta waves in leads I and II. On baseline measurements, the AH interval was -11. Tachycardia was initiated by ventricular stimulation. Several minutes into the arrhythmia, this electrogram was recorded. What explanation could be offered to describe what is seen here?
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