Buss J, Stegaru B, Kraatz J, Keller H, Neuss H, Heene D L
Z Kardiol. 1985 Mar;74(3):180-4.
Noninvasive recordings in a 69-year-old woman showed phasic shifts between two distinct PR intervals of about 0.21 and 0.58 s suggestive of dual AV nodal conduction in the presence of two intranodal pathways. Episodes of tachycardia exhibited a one to two relationship between P waves and QRS complexes, with the same short and long PR intervals interpreted as simultaneous anterograde fast and slow conduction via the two AV nodal pathways, leading to a double ventricular response to single P waves. Various mechanisms of transition from short to long or long to short conduction times and concealed conduction phenomena could be demonstrated supporting the concept of two functionally separated intranodal pathways.
对一名69岁女性进行的无创记录显示，在存在两条结内路径的情况下，两个不同PR间期（约0.21秒和0.58秒）之间存在相位变化，提示双房室结传导。心动过速发作时，P波与QRS波群呈1:2关系，相同的短PR间期和长PR间期被解释为通过两条房室结路径同时进行的前向快传导和慢传导，导致单个P波产生双心室反应。可以证明从短传导时间到长传导时间或从长传导时间到短传导时间的各种转变机制以及隐匿性传导现象，支持了两条功能上分离的结内路径的概念。
