Mapping and ablation of ventricular arrhythmias arising from the left ventricular summit

被引：0
|
作者：
Zhou, Zhi-Xiang [1 ]
Zheng, Cheng [1 ]
Hu, You-Dong [1 ]
Lin, Jia Feng [1 ]
机构：
[1] Wenzhou Med Univ, Affiliated Hosp 2, Dept Cardiol, 109 Xueyuan Rd, Wenzhou 325000, Zhejiang, Peoples R China
来源：
PACE-PACING AND CLINICAL ELECTROPHYSIOLOGY | 2024年 / 47卷 / 02期
基金：
中国国家自然科学基金;
关键词：
ablation; left ventricular; mapping; summit area; ventricular arrhythmia; RADIOFREQUENCY CATHETER ABLATION; OUTFLOW TRACT TACHYCARDIA; AORTIC SINUS; INJECTION; VALSALVA; ADJACENT; CUSP; VEIN;
D O I：
10.1111/pace.14932
中图分类号：
R5 [内科学];
学科分类号：
1002 ; 100201 ;
摘要：
The left ventricular summit (LVS) refers to the highest portion of the left ventricular outflow tract (LVOT). It is an epicardially delimited triangular area by the left coronary arteries and the coronary venous circulation. Its deep myocardium correlates closely with the left coronary cusp, aortic-mitral continuity, and right ventricular outflow tract (RVOT), complicating the anatomical relationship. Ventricular arrhythmias (VAs) originating from this area are common, accounting for 14.5% of all VAs origin from left ventricle. Specific electrocardiogram (ECG) characteristics may assist in locating LVS-VAs pre-procedure and facilitate procedure planning. However, catheter ablation of LVS-VAs remains challenging because of anatomical constraints. This paper reviews the recent understanding of LVS anatomy, concludes ECG characteristics, and summarizes current mapping and ablation methods for LVS-VAs.
引用
收藏
页码：242 / 252
页数：11
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