内科理论与实践2026，Vol.21Issue(3)：217-221,5.DOI:10.16138/j.1673-6087.2026.03.03
主动脉瓣下左右冠窦小叶间三角消融治疗左心室顶部室性期前收缩的策略及预后
Strategy and prognosis of ablation targeting the right-left subvalvular interleaflet triangle for premature ventricular contractions originating from the left ventricular summit
摘要
Abstract
Objective To discuss the efficacy,safety and prognosis of ablation at the right-left subvalvular interleaflet triangle as the primary strategy for refractory premature ventricular contractions originating from the left ventricular summit.Methods 21 patients with frequent symptomatic left-ventricular-summit-originated premature ventricular contractions who underwent ablation at Ruijin Hospital,Shanghai Jiao Tong University School of Medicine between March 2022 and February 2024 were included.In all these cases,no satisfactory target potential was identified by activation mapping of the supra-valvular and sub-valvular positions of the bilateral ventricular outflow tracts.Ablation was then prioritized to be performed at the right-left subvalvular interleaflet triangle,and its acute efficacy,ablation parameters and long-term prognosis were recorded.Results While the surface electrocardiograms of the 21 patients showed heterogeneous characteristics,ablation at interleaflet triangle achieved acute success in 19 patients(90.5%).During a 12-month follow-up,17 patients(81.0%)had no recurrence of premature ventricular contractions.No surgical complications occurred.Conclusions For left-ventricular-summit-originated premature ventricular contractions with no satisfactory target through activation mapping,ablation at the right-left subvalvular interleaflet triangle can be applied as the primary strategy.关键词
室性期前收缩/导管消融术/左心室顶部/左右冠窦小叶间三角Key words
premature ventricular contractions/catheter ablation/left ventricular summit/right-left subvalvular interleaflet triangle分类
医药卫生引用本文复制引用
谢运,罗庆志,卫越,王玲洁,吴立群,张凝..主动脉瓣下左右冠窦小叶间三角消融治疗左心室顶部室性期前收缩的策略及预后[J].内科理论与实践,2026,21(3):217-221,5.基金项目
国家自然科学基金青年科学基金项目(82100329) （82100329）
