TY - JOUR
T1 - Radiofrequency catheter ablation of left ventricular outflow tract tachycardia from the coronary cusp
T2 - A new approach to the tachycardia focus
AU - Shimoike, Eimei
AU - Ohnishi, Yasushi
AU - Ueda, Norihiro
AU - Maruyama, Toru
AU - Kaji, Yoshikazu
PY - 1999
Y1 - 1999
N2 - Introduction: Idiopathic ventricular tachycardia (VT) originating from the left ventricular outflow tract (LVOT) is rare. Previously reported were two cases of LVOT tachycardia which were treated with radiofrequency (RF) catheter ablation through endocardial aortomitral continuity. We report here a case of a repetitive LVOT tachycardia in which the QRS morphology during VT exhibited an atypical left bundle branch block and inferior axis. Pace mapping revealed that the origin of this VT was very close to the left sinus of Valsalva. Transcoronary cusp RF catheter ablation abolished the VT in this patient and is a new approach for the treatment of this kind of VT. The application of this approach to the other types of VT has yet to be determined.
AB - Introduction: Idiopathic ventricular tachycardia (VT) originating from the left ventricular outflow tract (LVOT) is rare. Previously reported were two cases of LVOT tachycardia which were treated with radiofrequency (RF) catheter ablation through endocardial aortomitral continuity. We report here a case of a repetitive LVOT tachycardia in which the QRS morphology during VT exhibited an atypical left bundle branch block and inferior axis. Pace mapping revealed that the origin of this VT was very close to the left sinus of Valsalva. Transcoronary cusp RF catheter ablation abolished the VT in this patient and is a new approach for the treatment of this kind of VT. The application of this approach to the other types of VT has yet to be determined.
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U2 - 10.1111/j.1540-8167.1999.tb01271.x
DO - 10.1111/j.1540-8167.1999.tb01271.x
M3 - Article
C2 - 10413380
AN - SCOPUS:0033060657
SN - 1045-3873
VL - 10
SP - 1005
EP - 1009
JO - Journal of Cardiovascular Electrophysiology
JF - Journal of Cardiovascular Electrophysiology
IS - 7
ER -