An Unusual Case Of Right Ventricular Outflow Tract Tachycardia |
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Authors: | Bülent Özin İlyas Atar İnci Aslı Atar Mehmet Emin Korkmaz Haldun Müderrisoğlu |
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Affiliation: | 1. School of Medicine, Department of Cardiology, Ba?kent University, Ankara, Turkey
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Abstract: | In this report, we describe an unusual case of right ventricular outflow tract (RVOT) tachycardia with episodes of repetitive monomorphic ventricular tachycardia (VT), paroxysmal sustained VT and incessant monomorphic VT of the same morphology. Diltiazem, adenosine, or metoprolol failed to interrupt these arrhythmias. However, administration of intravenous propafenone completely eliminated all ventricular ectopic activity. Electrophysiologic study performed off propafenone showed that the ventricular ectopic activity originated from a single locus at the anterior wall of the RVOT. Two radiofrequency applications at this site resulted in complete elimination of ventricular ectopic activity. |
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Keywords: | right ventricular outflow tract tachycardia idiopathic ventricular tachycardia radiofrequency ablation propafenone |
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