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Card Electrophysiol Clin. 2010 Jun;2(2):203-207. doi: 10.1016/j.ccep.2010.01.003.

Narrow Complex Tachycardia: What is the Mechanism?

Author information

1
Division of Cardiology, Section of Cardiac Electrophysiology, University of Washington School of Medicine, 1959 NE Pacific Street, Box 356422, Seattle, WA 98195-6422, USA.
2
Division of Cardiology, Section of Cardiac Electrophysiology, University of California, 500 Parnassus Avenue, Box 1354, San Francisco, CA 94143-1354, USA.

Abstract

This article reports an interesting case of a narrow complex tachycardia presenting the diagnostic dilemma of differentiating atrioventricular nodal reentrant tachycardia (AVNRT) from junctional tachycardia. It proposes delivering late-coupled premature atrial complexes during the tachycardia with short ventriculo-atrial interval as a diagnostic maneuver to differentiate AVNRT from junctional tachycardia in the electrophysiology laboratory. Treatments of these arrhythmias vary, and making the appropriate diagnosis of supraventricular tachycardia is essential to providing effective arrhythmia management.

PMID:
28770751
DOI:
10.1016/j.ccep.2010.01.003

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