open access

Vol 67, No 3 (2009)
Other
Published online: 2009-03-24
Submitted: 2012-12-28
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Electrocardiogram of the month
QRS alternans during ventricular tachycardia

Marek Jastrzębski, Piotr Gomuła
Kardiol Pol 2009;67(3):317-320.

open access

Vol 67, No 3 (2009)
Other
Published online: 2009-03-24
Submitted: 2012-12-28

Abstract

We present electrocardiograms of a 70-year-old man with a history of inferior wall myocardial infarction. Since the infarction he had frequent episodes of ventricular tachycardia that was on many occasions misdiagnosed as either supraventricular tachycardia or atrial flutter. We contribute the mistakes to the presence of relatively narrow QRS complexes and QRS alternans that imitated fusion beats. The QRS morphology similar to that seen in idiopathic ventricular tachycardia suggested participation of the Purkinje fibers of the posterior fascicle in the reentrant circuit. The arrhythmia was ablated with single radiofrequency current application in the mid-paraseptal area of the left ventricle.

Abstract

We present electrocardiograms of a 70-year-old man with a history of inferior wall myocardial infarction. Since the infarction he had frequent episodes of ventricular tachycardia that was on many occasions misdiagnosed as either supraventricular tachycardia or atrial flutter. We contribute the mistakes to the presence of relatively narrow QRS complexes and QRS alternans that imitated fusion beats. The QRS morphology similar to that seen in idiopathic ventricular tachycardia suggested participation of the Purkinje fibers of the posterior fascicle in the reentrant circuit. The arrhythmia was ablated with single radiofrequency current application in the mid-paraseptal area of the left ventricle.
Get Citation

Keywords

ventricular tachycardia; QRS alternans; ablation; Purkinje fibers

About this article
Title

Electrocardiogram of the month
QRS alternans during ventricular tachycardia

Journal

Kardiologia Polska (Polish Heart Journal)

Issue

Vol 67, No 3 (2009)

Pages

317-320

Published online

2009-03-24

Bibliographic record

Kardiol Pol 2009;67(3):317-320.

Keywords

ventricular tachycardia
QRS alternans
ablation
Purkinje fibers

Authors

Marek Jastrzębski
Piotr Gomuła

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