右室流出道起源的特发性室性心律失常的心电图分析

• 作 者: 展庆垒
• 机 构: 解放军总医院心血管内科,北京,100853
• 出 处: 心血管病学进展
• 发表日期: 2017年5期
• 关键词: Idiopathic ventricular arrhythmias Right ventricular outflow tract Left ventricu

右室流出道是特发性室性心律失常易起源位置,右室流出道起源的室性期前收缩占所有室性期前收缩的80%以上.起源于该处的特发性室性心律失常经射频导管消融治疗的成功率在75%~100%,而且并发症风险低.右室流出道解剖上毗邻左室流出道,尤其是主动脉窦,又是致心律失常性右室心肌病心脏发育不良三角的一部分,其自身又分为前间隔、后间隔和游离壁,术前对此区体表心电图的鉴别诊断尤为重要.“,”Idiopathic arrhythmias arising from the right outflow tract are the most common subtype of idiopathic ventricular arrhythmi-as,and more than 80% of premature ventricular contractions originate from the right ventricular outflow tract. The acute success rate for abla-tion of right ventricular outflow tract-ventricular arrhythmias ranges from 75 to 100% with a low risk of complications. Anatomically,right ven-tricular outflow tract is adjacent to left ventricular outflow tract,especially aortic sinus,and as a part of the triangle of arrhythmogenic right ventricular cardiomyopathy,it is divided into anterior septum,posterior septum and free wall. It is particularly important to analyse the electro-cardiogram before radiofrequency catheter ablation.