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学科主题: 临床医学
题名:
Electrophysiologic and electrocardiographic characteristics of focal atrial tachycardia arising from superior tricuspid annulus
作者: Yin, J. X.1; Zhou, Y. F.2; Li, X. B.1; Zhang, P.1; Zhang, H. C.1; Zhang, T.1; Guo, J. H.1
刊名: INTERNATIONAL JOURNAL OF CLINICAL PRACTICE
发表日期: 2008-07-01
DOI: 10.1111/j.1742-1241.2007.01600.x
卷: 62, 期:7, 页:1008-1012
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology
类目[WOS]: Medicine, General & Internal ; Pharmacology & Pharmacy
研究领域[WOS]: General & Internal Medicine ; Pharmacology & Pharmacy
关键词[WOS]: RADIOFREQUENCY ABLATION ; CATHETER ABLATION ; FIBRILLATION ; ARRHYTHMIAS ; MECHANISMS ; ADENOSINE ; FLUTTER
英文摘要:

Objectives: This study describes the electrophysiologic and electrocardiographic characteristics of focal atrial tachycardia (AT) arising from superior tricuspid annulus in six (1.9%) patients of a consecutive series of 320 patients. Methods: Six patients (mean age 42 +/- 22 years) with a mean cycle length of 326 ms of a consecutive series of 320 patients undergoing radiofrequency ablation for focal AT were mapped. Results: During electrophysiologic study, tachycardia could be induced in five patients with programmed atrial extrastimuli while a spontaneous onset and offset with ′warm-up and cool-down′ phenomenon was seen in the other patient. During tachycardia, P-wave morphology in Lead I, II, III and aVF was upright in all the six patients. The precordial leads were dominantly negative or isoelectric in V(1)-V(2) and positive in V(5)-V(6) with a transition at V(3) or V(4). Moreover, the tachycardia was sensitive to intravenous administration of adenosine triphosphate in five of six patients. Conclusions: Radiofrequency ablation was performed successfully in all patients (mean 4.5 +/- 1.2 applications). No recurrence of AT was observed after a mean follow-up of 8 +/- 6 months. Thus, AT arising from superior tricuspid annulus is rare. Radiofrequency ablation of this kind of AT is safe and effective.

语种: 英语
WOS记录号: WOS:000256492900010
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.bjmu.edu.cn/handle/400002259/51716
Appears in Collections:北京大学第二临床医学院_期刊论文

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作者单位: 1.Peking Univ, Dept Cardiac Electrophysiol, Peoples Hosp, Beijing 100871, Peoples R China
2.China Japan Friendship Hosp, Dept Cardiol, Beijing, Peoples R China

Recommended Citation:
Yin, J. X.,Zhou, Y. F.,Li, X. B.,et al. Electrophysiologic and electrocardiographic characteristics of focal atrial tachycardia arising from superior tricuspid annulus[J]. INTERNATIONAL JOURNAL OF CLINICAL PRACTICE,2008,62(7):1008-1012.
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