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在有室上性心动过速(SVT)病史的414侧电生理检查中,发现潜在性预激综合征78例,占18.84％。其中A型42例,B型36型,诱发窗口及旁道不应期分别为300±45.2ms,358.8±39.5ms(P<0.01);284.5±46.3ms,321.7±38.5ms(P<0.05)。78例中有28例诱发出SVT,其旁道不应期为272.4±45.6ms。本结果表明潜在性预激综合征是SVT的一种常见病因。A型、B型预激的不应期有差别是否受调搏电极位置及旁道解剖部位相对关系的影响,值得探讨。
In a 414-sided electrophysiological study with a history of supraventricular tachycardia (SVT), 78 cases of potential WPW syndrome were found, accounting for 18.84%. Among them, 42 cases were type A and 36 cases were type B, the induced window and paracancer refractory period were 300 ± 45.2ms, 358.8 ± 39.5ms (P <0.01), 284.5 ± 46.3ms, 321.7 ± 38.5ms (P <0.05) . SVT was induced in 28 of 78 cases, with a 272.4 ± 45.6 ms refractory period. This result suggests that potential WPW syndrome is a common cause of SVT. A type, B-type pre-excitation refractory period is affected by the location of the pacing electrode and the relative relationship between the bypass anatomy, it is worth discussing.