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目的了解食道心房调搏在房室传导功能检测中的意义。方法对３９例ＰＲ间期延长（研究组）和１４１例ＰＲ间期正常（对照组）患儿房室传导功能进行了经食道心房调搏研究。结果在非房室结双径路和多径路者，研究组的房室传导有效不应期、文氏传导阻滞点及同一刺激频率的ＳＶ间期较对照组为长。但在房室结双径路和多径路者，研究组和对照组文氏传导阻滞点及同一刺激频率的ＳＶ间期以及快径路的有效不应期和功能不应期无显著性差别。结论经食道心房调搏对于房室传导功能的检测有一定的价值
Objective To understand the significance of esophageal atrial pacing in the detection of atrioventricular conduction. Methods Atrioventricular atrial pacing study was performed in 39 patients with PR interval prolongation (study group) and 141 patients with PR interval normal (control group). Results In non-atrioventricular node dual-pathways and multi-pathways, the AV interval, Venn’s block and SV interval in the study group were longer than those in the control group. However, in the atrioventricular node dual-pathways and multi-pathways, there was no significant difference between the Venn block and the SV interval in the study group and the control group and the effective refractory period and functional refractory period in the fast track. Conclusion Transesophageal atrial pacing for the detection of atrioventricular conduction function has a certain value