Abstract
Introduction: Information about the activation patterns inside the superior vena cava (SVC) and entry and exit sites at the SVC-right atrial (RA) junction during SVC tachyarrhythmia is limited. Methods and Results: A detailed characterization of electrophysiologic mechanisms and ablation strategies was performed using a noncontact three-dimensional mapping system in two cases of SVC tachycardia. The first case demonstrated SVC tachycardia originating from an ectopic focus inside the SVC, with sustained depolarization and conduction to the atrium. Entry and exit sites across the SVC-RA junction were located very close to each other. The second case demonstrated two different reentrant circuits, one inside the SVC and the other into and out of the SVC-RA junction. The entry and exit sites were located far away from each other. Conclusion: Noncontact mapping may help to reveal the mechanism of SVC tachyarrhythmias and to locate entry and exit sites at the SVC-RA junction as a guide for catheter ablation.
| Original language | English |
|---|---|
| Pages (from-to) | 533-539 |
| Number of pages | 7 |
| Journal | Journal of Cardiovascular Electrophysiology |
| Volume | 14 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - May 1 2003 |
| Externally published | Yes |
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Keywords
- Mapping
- Superior vena cava
- Tachycardia
ASJC Scopus subject areas
- Cardiology and Cardiovascular Medicine
- Physiology
Cite this
Novel concept of atrial tachyarrhythmias originating from the superior vena cava : Insight from noncontact mapping. / Liu, Tu Ying; Tai, Ching Tai; Lee, Pi Chang; Hsieh, Ming Hsiung; Higa, Satoshi; Ding, Yu An; Chen, Shih Ann.
In: Journal of Cardiovascular Electrophysiology, Vol. 14, No. 5, 01.05.2003, p. 533-539.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Novel concept of atrial tachyarrhythmias originating from the superior vena cava
T2 - Insight from noncontact mapping
AU - Liu, Tu Ying
AU - Tai, Ching Tai
AU - Lee, Pi Chang
AU - Hsieh, Ming Hsiung
AU - Higa, Satoshi
AU - Ding, Yu An
AU - Chen, Shih Ann
PY - 2003/5/1
Y1 - 2003/5/1
N2 - Introduction: Information about the activation patterns inside the superior vena cava (SVC) and entry and exit sites at the SVC-right atrial (RA) junction during SVC tachyarrhythmia is limited. Methods and Results: A detailed characterization of electrophysiologic mechanisms and ablation strategies was performed using a noncontact three-dimensional mapping system in two cases of SVC tachycardia. The first case demonstrated SVC tachycardia originating from an ectopic focus inside the SVC, with sustained depolarization and conduction to the atrium. Entry and exit sites across the SVC-RA junction were located very close to each other. The second case demonstrated two different reentrant circuits, one inside the SVC and the other into and out of the SVC-RA junction. The entry and exit sites were located far away from each other. Conclusion: Noncontact mapping may help to reveal the mechanism of SVC tachyarrhythmias and to locate entry and exit sites at the SVC-RA junction as a guide for catheter ablation.
AB - Introduction: Information about the activation patterns inside the superior vena cava (SVC) and entry and exit sites at the SVC-right atrial (RA) junction during SVC tachyarrhythmia is limited. Methods and Results: A detailed characterization of electrophysiologic mechanisms and ablation strategies was performed using a noncontact three-dimensional mapping system in two cases of SVC tachycardia. The first case demonstrated SVC tachycardia originating from an ectopic focus inside the SVC, with sustained depolarization and conduction to the atrium. Entry and exit sites across the SVC-RA junction were located very close to each other. The second case demonstrated two different reentrant circuits, one inside the SVC and the other into and out of the SVC-RA junction. The entry and exit sites were located far away from each other. Conclusion: Noncontact mapping may help to reveal the mechanism of SVC tachyarrhythmias and to locate entry and exit sites at the SVC-RA junction as a guide for catheter ablation.
KW - Mapping
KW - Superior vena cava
KW - Tachycardia
UR - http://www.scopus.com/inward/record.url?scp=0038242217&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0038242217&partnerID=8YFLogxK
U2 - 10.1046/j.1540-8167.2003.02473.x
DO - 10.1046/j.1540-8167.2003.02473.x
M3 - Article
C2 - 12776873
AN - SCOPUS:0038242217
VL - 14
SP - 533
EP - 539
JO - Journal of Cardiovascular Electrophysiology
JF - Journal of Cardiovascular Electrophysiology
SN - 1045-3873
IS - 5
ER -