Catheter Ablation of Idiopathic Left Ventricular Outflow Tract Tachycardia Originating from the Left Sinus of Valsalva Experience of 11 Cases

Susumu Takase, Yasushi Mukai, Masao Takemoto, Shujiro Inoue, Akiko Chishaki, Kenji Sunagawa

研究成果: Contribution to journalArticle査読

抄録

It has been reported that ventricular outflow tract tachycardia (OT-VT) can be successfully ablated from the left sinus of valsalva (LSV) in some portion of cases, up to about 10 % of all idiopathic outflow tract tachycardia. We performed radiofrequency catheter ablation for OT-VT which was thought to be originating from LSV to 11 patients. 10 out of 11 cases were successfully ablated from the LSV Among 10 cases, 8 had isolated presystolic potentials preceding the QRS complex of PVC (P1 potential) at the anterior part of LSV and 9 cases had potentials following the QRS complex (P2 potential) during sinus rhythm. 8 in 9 cases P2 potentials disappeared or delayed after successful RFCA. Successful 10 cases had no recurrence for a follow-up period of 18± 15 months. Pace mapping could be performed at the RF deliver site only in 7 cases in which the captured QRS morphology completely matched the target PVC only in 4 cases. These observation suggested that RFCA at site with P1 and P2 potentials were associated with procedual and long-term clinical success in OT-VT targeted from the LSV.

本文言語英語
ジャーナルjournal of arrhythmia
27
DOI
出版ステータス出版済み - 2011

All Science Journal Classification (ASJC) codes

  • 循環器および心血管医学

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