论文部分内容阅读
1986年第3期《心电学杂志》任在镐同志《房室传导系统内的多径路现象》一文引用Dencs(Br HeartJ,31:1069,1975)提出的前向性房室结内双径路显现条件之一,要求心房的功能不应期短于慢径路的有效不应期,实际上该条件可能并不如此严格。只要心房的不应期短于快径路的有效不应期就有可能显现前向性双径路(附图):A_2为心房期前刺激,其联律间期大于快径路的有效不应期,故可以从快、慢径路同时下传,并在慢径路中发生干扰,这样就显示快径
1986 the third period of the “Electrocardiology magazine,” Comrade Ren Zenggao, “atrioventricular conduction system within the phenomenon of multi-path” article quoted Dencs (Br HeartJ, 31: 1069,1975) One condition, which requires that the atrial refractory period be shorter than the effective refractory period of the slow pathway, may not actually be as stringent. As long as the refractory period of the atrium is shorter than the effective refractory period of the fast track, it is possible to show an antegrade dual track (with photos): A_2 is an atrial pre-stimulus with a joint refractory period greater than that of the fast track, It can be from the fast, slow path at the same time, and slow path in the interference occurs, so that the shortcut