Category Archives: Electrophysiology (EP)

Atrial Tachycardia in Electrophysiology

Atrial Tachycardia Ablation

Firstly there is disagreement about how the term atrial tachycardia should be used. A strict definition would be all fast rhythms which originate in the atria and that not require other tissue to sustain. This would of course include typical atrial flutter and atrial fibrillation (AF). We can exclude AF however as atrial tachycardias must…

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bundle branch

Bundle Branch Re-entry Ventricular Tachycardia (VT)

Bundle branch re-entry is a relatively rare form of ventricular tachycardia (VT), usually in patients with significant left ventricular impairment and distal conduction system disease, the latter providing the slow conduction necessary to sustain re-entry. The surface ECG in sinus rhythm (SR) characteristically shows intra-ventricular conduction defects and the tachycardia usually has a left bundle…

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