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为探讨WPW综合症在反复性心动过速(RT)期间周期长度(CL)突然变化的发生率和产生机制,作者在WPW综合症患者的电生理研究中连续观察了82例RT期间CL的变化情况。资料与方法:82例中男性57例,女性25例。45例为显性WPW,37例为隐匿性。用心房起搏或心房期前刺激诱发RT,观察RT期间CL的变化,以CL突然>30毫秒的改变为阳性(RT持续时间至少10分钟,并除外出现在RT开始时或即将结束前出现的CL变化)。
To investigate the incidence and mechanism of sudden changes in the cycle length (CL) of WPW syndrome during recurrent tachycardia (RT), we continuously observed changes in CL during the 82 RT episodes in the electrophysiological study of patients with WPW syndrome Happening. Materials and Methods: There were 57 males and 25 females in 82 cases. 45 cases were dominant WPW, 37 cases were occult. RT was induced with either atrial pacing or atrial pre-stimulus to observe changes in CL during RT, positive for CL sudden> 30 msec changes (RT duration at least 10 minutes except at onset of or near the end of RT CL change).