Initiation of a Wide QRS Complex Tachycardia with Alternating Ventriculoatrial Interval: What Is the Mechanism?
Can Ozkan, Ozcan Ozeke, Elif Hande Ozcan Cetin, Meryem Kara, Sona Huseynova, Ahmet Korkmaz, Firat Ozcan, Serkan Cay, Dursun Aras, Serkan Topaloglu
TL;DR
This paper discusses the mechanisms behind a specific type of heart rhythm disorder called wide QRS complex tachycardia.
Contribution
The paper highlights how changes in intracardiac intervals can help diagnose the cause of this arrhythmia.
Findings
Variations in intracardiac intervals can affect tachycardia cycle length.
These changes can be diagnostic for different types of arrhythmias.
Abstract
The differential diagnosis for wide complex tachycardia includes all causes of narrow complex tachycardia with bundle branch block, all causes of narrow complex tachycardia with antegrade pre-excitation, ventricular tachycardia, and antidromic and other pre-excited reciprocating tachycardias. The variation in a specific intracardiac interval that causes a subsequent change in the tachycardia cycle length or another intracardiac interval can be diagnostic in these arrhythmias.
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Taxonomy
TopicsCardiac Arrhythmias and Treatments · Cardiac pacing and defibrillation studies · Cardiac electrophysiology and arrhythmias