Int J Arrhythm.  2017 Jun;18(2):116-120. 10.18501/arrhythmia.2017.019.

Interrelated Atrioventricular Reentrant Tachycardia and Idiopathic Left Ventricular Tachycardia in a Patient with Manifested Bystander Accessory Pathway

Affiliations
  • 1Division of Cardiology, Department of Internal Medicine, Heart Vascular and Stroke Institute, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea. kyoungmin.park@samsung.com

Abstract

Double tachycardia is defined as the coexistence of supraventricular tachycardia (SVT) and ventricular tachycardia (VT). In clinical practice, incidentally encountered double tachycardia is difficult to diagnose during electrophysiology study without prior documentation of both tachycardias. SVT can be confused with VT because SVT sometimes show an aberrant conduction depending on heart rate. In the present case, a patient with Wolff-Parkinson-White syndrome exhibited atrioventricular reentrant tachycardia (AVRT) via a concealed bypass tract and idiopathic left ventricular tachycardia (ILVT), which were difficult to discriminate because of their similar cycle length and interrelationship.

Keyword

Atrioventricular Reentrant Tachycardia; Idiopathic Left Ventricular Tachycardia; Double Tachycardia

MeSH Terms

Electrophysiology
Heart Rate
Humans
Tachycardia*
Tachycardia, Supraventricular
Tachycardia, Ventricular*
Wolff-Parkinson-White Syndrome
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