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逆行心房活动顺序对心脏旁道的定位诊断非常重要。正道前传型(Orthodromic)室上性心动过速(SVT)发作时心房标测表明,左侧旁道者左房最先激动,右侧旁道者右房最先激动,间隔旁道者逆行心房活动顺序与正常房室结逆传顺序一致。临床心电生理检查主要根据此原理定位心脏旁道。本研究目的在于提出旁道定位诊断的定量标准,以探讨无创性标测心脏旁道的可能性。
The sequence of retrograde atrial activity is very important for the diagnosis of the location of the heart bypass. Orthodromic supraventricular tachycardia (SVT) attack atrial mapping showed that the left side of the left atrium was the first to be excited, the right side of the right atrium was the first to be excited, the interval between the retrograde atrial bypass Activity sequence and normal atrioventricular node reverse order. Clinical ECG is mainly based on the principle of positioning the heart bypass. The purpose of this study was to propose a quantitative standard for the diagnosis of accessory pathway to explore the possibility of noninvasive mapping of the heart bypass.