Chen Chun-Kai, Yu Chih-Chieh
Division of Cardiology, Department of Internal Medicine, National Taiwan University Hospital Hsin-Chu Branch, Hsinchu, Taiwan.
Division of Cardiology, Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan.
Front Cardiovasc Med. 2023 Sep 15;10:1253912. doi: 10.3389/fcvm.2023.1253912. eCollection 2023.
Superior vena cava (SVC) isolation has been proposed as part of the ablation strategy for atrial fibrillation. However, circumferential isolation of the SVC can lead to late-onset complications, such as SVC stenosis.
We describe a detailed observation of the SVC conduction pattern and present a newly developed approach for SVC isolation that involves creating a C-shaped non-circumferential ablation line while sparing the lateral segment.
Twelve consecutive patients were included in the study, all of whom achieved bidirectional block during the ablation procedure.
This approach to SVC isolation is effective and has the potential to reduce ablation related complications; however, larger studies and long-term follow-up is warranted to confirm these findings.
上腔静脉（SVC）隔离已被提议作为心房颤动消融策略的一部分。然而，SVC的环形隔离可导致迟发性并发症，如SVC狭窄。
我们详细观察了SVC传导模式，并提出了一种新开发的SVC隔离方法，该方法涉及创建一个C形非环形消融线，同时保留外侧段。
该研究纳入了连续12例患者，所有患者在消融过程中均实现了双向阻滞。
这种SVC隔离方法是有效的，并且有可能减少消融相关并发症；然而，需要更大规模的研究和长期随访来证实这些发现。
