Ablation of Idiopathic Ventricular Tachycardia with a Left Bundle-Branch Block Morphology Originating from the Pulmonary Artery

被引：0

作者：

Ogi, Hiroshi ^{[1
]}

Nakano, Yukiko ^{[1
]}

Oda, Noboru ^{[1
]}

Miyoshi, Miwa ^{[1
]}

Chayama, Kazuaki ^{[1
]}

Ishibashi, Ken ^{[2
]}

Hirai, Yuko ^{[2
]}

Okimoto, Tomokazu ^{[2
]}

机构：

[1] Hiroshima Univ, Grad Sch Biomed Sci, Dept Med & Mol Sci, Minami Ku, 1-2-3 Kasumi, Hiroshima 7348551, Japan

[2] Hiroshima Univ, Grad Sch Biomed Sci, Dept Mol Internal Med, Hiroshima, Japan

来源：

JOURNAL OF ARRHYTHMIA | 2006年 / 22卷 / 03期

关键词：

Pulmonary valve; Premature ventricular contractions; Activation mapping; Pace mapping; CARTO;

D O I：

暂无

中图分类号：

R5 [内科学];

学科分类号：

1002 ; 100201 ;

摘要：

We successfully performed radiofrequency catheter ablation (RFCA) in 2 cases involving patients with idiopathic ventricular tachycardias (VTs) and premature ventricular contractions (PVCs) originating from the pulmonary artery (PA). The QRS morphology of the VTs and PVCs in the two cases exhibited a left bundle-branch block (LBBB) morphology with an inferior axis. Activation and pace mappings were performed in the right ventricular outflow tract (RVOT) and above the pulmonary valve to determine the origin of the VTs and PVCs. In both cases, the earliest ventricular activation was recorded in the PA above the pulmonary valve. Applications of radiofrequency current at those sites in the PA resulted in the elimination and noninducibility of the VT and PVC. During the follow-up, the VT or PVC did not recur without any antiarrhythmic drug administration.

引用

页码：180 / 186

页数：7

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