摘要
Background - The superior vena cava (SVC) has cardiac musculature extending from the right atrium. However, no previous study in humans has given details regarding the ectopic foci that initiate paroxysmal atrial fibrillation (PAF), which may originate from the SVC. Methods and Results - A total of 130 patients with frequent attacks of PAF initiated by ectopic beats were included. Eight patients (6%) had spontaneous AF initiated by a burst of rapid ectopic beats from the SVC (located 19±7 mm above the junction of the SVC and right atrium), which was confirmed by multiplane angiographic and intracardiac echocardiographic visualization and was marked by a sharp SVC potential preceding atrial activity. During initial repetitive discharges, the group with SVC ectopy had a higher incidence of intravenous conduction block than the group with pulmonary vein ectopy (75% versus 37%; P=0.03). The activation time of the earliest intracardiac ectopic activities relative to ectopic P wave onset was significantly shorter in the SVC ectopy than the pulmonary vein ectopy group (37±15 versus 84±32 ms; P
| 原文 | 英語 |
|---|---|
| 頁（從 - 到） | 67-74 |
| 頁數 | 8 |
| 期刊 | Circulation |
| 卷 | 102 |
| 發行號 | 1 |
| 出版狀態 | 已發佈 - 七月 4 2000 |
| 對外發佈 | Yes |
指紋
ASJC Scopus subject areas
- Physiology
- Cardiology and Cardiovascular Medicine
引用此文
Initiation of atrial fibrillation by ectopic beats originating from the superior vena cava : Electrophysiological characteristics and results of radiofrequency ablation. / Tsai, Chin Feng; Tai, Ching Tai; Hsieh, Ming Hsiung; Lin, Wei Shiang; Yu, Wen Chung; Ueng, Kwo Chang; Ding, Yu An; Chang, Mau Song; Chen, Shih Ann.
於: Circulation, 卷 102, 編號 1, 04.07.2000, p. 67-74.研究成果: 雜誌貢獻 › 文章
}
TY - JOUR
T1 - Initiation of atrial fibrillation by ectopic beats originating from the superior vena cava
T2 - Electrophysiological characteristics and results of radiofrequency ablation
AU - Tsai, Chin Feng
AU - Tai, Ching Tai
AU - Hsieh, Ming Hsiung
AU - Lin, Wei Shiang
AU - Yu, Wen Chung
AU - Ueng, Kwo Chang
AU - Ding, Yu An
AU - Chang, Mau Song
AU - Chen, Shih Ann
PY - 2000/7/4
Y1 - 2000/7/4
N2 - Background - The superior vena cava (SVC) has cardiac musculature extending from the right atrium. However, no previous study in humans has given details regarding the ectopic foci that initiate paroxysmal atrial fibrillation (PAF), which may originate from the SVC. Methods and Results - A total of 130 patients with frequent attacks of PAF initiated by ectopic beats were included. Eight patients (6%) had spontaneous AF initiated by a burst of rapid ectopic beats from the SVC (located 19±7 mm above the junction of the SVC and right atrium), which was confirmed by multiplane angiographic and intracardiac echocardiographic visualization and was marked by a sharp SVC potential preceding atrial activity. During initial repetitive discharges, the group with SVC ectopy had a higher incidence of intravenous conduction block than the group with pulmonary vein ectopy (75% versus 37%; P=0.03). The activation time of the earliest intracardiac ectopic activities relative to ectopic P wave onset was significantly shorter in the SVC ectopy than the pulmonary vein ectopy group (37±15 versus 84±32 ms; P
AB - Background - The superior vena cava (SVC) has cardiac musculature extending from the right atrium. However, no previous study in humans has given details regarding the ectopic foci that initiate paroxysmal atrial fibrillation (PAF), which may originate from the SVC. Methods and Results - A total of 130 patients with frequent attacks of PAF initiated by ectopic beats were included. Eight patients (6%) had spontaneous AF initiated by a burst of rapid ectopic beats from the SVC (located 19±7 mm above the junction of the SVC and right atrium), which was confirmed by multiplane angiographic and intracardiac echocardiographic visualization and was marked by a sharp SVC potential preceding atrial activity. During initial repetitive discharges, the group with SVC ectopy had a higher incidence of intravenous conduction block than the group with pulmonary vein ectopy (75% versus 37%; P=0.03). The activation time of the earliest intracardiac ectopic activities relative to ectopic P wave onset was significantly shorter in the SVC ectopy than the pulmonary vein ectopy group (37±15 versus 84±32 ms; P
KW - Catheter ablation
KW - Fibrillation
KW - Superior
KW - Vena cava
UR - http://www.scopus.com/inward/record.url?scp=0034604230&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0034604230&partnerID=8YFLogxK
M3 - Article
C2 - 10880417
AN - SCOPUS:0034604230
VL - 102
SP - 67
EP - 74
JO - Circulation
JF - Circulation
SN - 0009-7322
IS - 1
ER -