Vol 66, No 11 (2008)
Other
Published online: 2008-11-27
Submitted: 2012-12-28
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Electrocardiogram of the month
Proarrhythmic effect of propafenone in patients with atrial fibrillation and atrial flutter

Marek Jastrzębski
Kardiol Pol 2008;66(11):1221-1224.
Vol 66, No 11 (2008)
Other
Published online: 2008-11-27
Submitted: 2012-12-28

Abstract

We present two cases of proarrhythmia after propafenone treatment. In the first case slowing of the flutter cycle length from 205 ms to 290 ms resulted in a change from well tolerated two to one atrioventricular conduction to one to one conduction with hypotension and presyncope. In the second case organization of atrial fibrillation to atypical atrial flutter and use-dependent left bundle branch block resulted in fast broad QRS tachycardia that mimicked ventricular tachycardia.

Abstract

We present two cases of proarrhythmia after propafenone treatment. In the first case slowing of the flutter cycle length from 205 ms to 290 ms resulted in a change from well tolerated two to one atrioventricular conduction to one to one conduction with hypotension and presyncope. In the second case organization of atrial fibrillation to atypical atrial flutter and use-dependent left bundle branch block resulted in fast broad QRS tachycardia that mimicked ventricular tachycardia.
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Keywords

propafenone; broad-QRS tachycardia; proarrhythmia; atrial flutter; atrial fibrillation; use-dependence

About this article
Title

Electrocardiogram of the month
Proarrhythmic effect of propafenone in patients with atrial fibrillation and atrial flutter

Journal

Kardiologia Polska (Polish Heart Journal)

Issue

Vol 66, No 11 (2008)

Pages

1221-1224

Published online

2008-11-27

Bibliographic record

Kardiol Pol 2008;66(11):1221-1224.

Keywords

propafenone
broad-QRS tachycardia
proarrhythmia
atrial flutter
atrial fibrillation
use-dependence

Authors

Marek Jastrzębski

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