动态心电图对伴长不应期快径的房室结双径路的诊断价值

Diagnosis value of dynamic electrocardiogram monitoring in patients with dual atrioventricular nodal pathways and long fast pathway effective refractory period

目的:明确24 h动态心电图对伴长不应期快径的房室结双径路(DAVNP)的诊断价值。方法:对84例DAVNP 合并房室结折返性心动过速(AVNRT)的患者进行24 h动态心电图(DCG)监测。结果:3例患者在DCG示间歇 性PR间期延长,伴心悸等不适。食管电生理显示快径有效不应期(ERP)延长,大于500 ms。结论:DAVNP患者 有时快径呈间歇性延长,DCG有助于其确定。

Objective： To understand the diagnosis value of 24h dynamic electrocardiogram （DCG） monitoring in patients with dual atrioventricular nodal pathways （DAVNP） and long effective refractory period （ERP） of fast pathway. Methods ：DCG monitoring was performed in 84 cases with DAVNP and atrioventricular nodal reentrant tachycardia （AVNRT）. Results ： Three cases during DCG monitoring were with intermittent long PR intervals and their ERP in fast pathway were more than 500ms by transesophageal atrial pacing. Conclusion： The DAVNP patients may complicate with intermittent long effective refractory period of fast pathway, DCG monitoring may contribute to finding this phenomen.