Catheter ablation of premature ventricular complexes associated with false tendons: A case report

• 作者: Jun Liu Min Tang Pi-Hua Fang Shu Zhang Ting-Ting Guo Xiao-Feng Li Ya-Bing Yang Yu-He Jia
• 来源期刊: 世界临床病例杂志
• 学科: 医学
• 关键词: INTRACARDIAC ECHOCARDIOGRAPHY CartoSound^TM Radiofrequency CATHETER ablation PREMATURE VENTRICULAR complexes False TENDONS Case report
• 年，卷（期）: 2020,（2）
• 页码范围: 325-330
• 页数: 6页
• 分类号: R54

摘要

BACKGROUND False tendon is a common intraventricular anatomical variation. It refers to a fibroid or fibromuscular structure that exists in the ventricle besides the normal connection of papillary muscle and mitral or tricuspid valve. A large number of clinical studies have suggested that there is a significant correlation between false tendons and premature ventricular complexes. However, few studies have verified this correlation during radiofrequency catheter ablation of premature ventricular complexes.CASE SUMMARY A 45-year-old male was admitted to receive radiofrequency ablation for symptomatic premature ventricular complexes. A three-dimensional model of the left ventricle was established by intracardiac echocardiography using the CartoSound^TM mapping system. In addition to the left anterior papillary muscle,the posterior papillary muscle was mapped. False tendons were found at the base of the interventricular septum, and the other end was connected to the left ventricular free wall near the apex. An irrigated touch force catheter was advanced into the left ventricle via the retrograde approach. The earliest activation site was marked at the interventricular septum attachment of the false tendons and was successfully ablated.CONCLUSION This case verified that false tendons can cause premature ventricular complexes and may be cured by radiofrequency ablation guided by intracardiac echocardiography with the Carto Sound TM system.