Radiofrequency catheter ablation of left ventricular outflow tract tachycardia: Report of two cases

Eimei Shimoike, Yurika Ohba, Nobuhito Yanagi, Shin Ichi Hiramatsu, Norihiro Ueda, Toru Maruyama, Yoshikazu Kaji, Shozo Kanaya, Takehiko Fujino, Yoshiyuki Niho

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Idiopathic ventricular tachycardia (VT) originating from the left ventricular outflow tract (LVOT) is rare. We report two patients whose QRS configuration during VT commonly showed an inferior axis and monophasic R waves in all the precordial leads. The mechanism of these VTs appeared to be triggered activity. From mapping and ablation, the origin of these VTs was determined to be in the most posterior LVOT, corresponding to the aortomitral continuity (left fibrous trigone).

Original languageEnglish
Pages (from-to)196-202
Number of pages7
JournalJournal of Cardiovascular Electrophysiology
Issue number2
Publication statusPublished - Jan 1 1998


All Science Journal Classification (ASJC) codes

  • Cardiology and Cardiovascular Medicine
  • Physiology (medical)

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