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目的 探讨心房超常传导 (SNC)的发生率及临床意义。方法 对 90例无器质性心脏病患者进行系统电生理检查 ,观察有无SNC发生及心房超常传导带 (SNCZ)与传导时间最大减少值 (MDCT) ;并根据心内电生理检查时能否诱发出房性心律失常而分为两组 (诱发出房性心律失常者为Ⅰ组、未诱发出者为Ⅱ组 ) ,比较两组SNC的检出率 ,探讨SNC与房性心律失常的相关性。结果 90例患者中 43例 ( 4 7.78% )有SNC现象 ,其中Ⅰ、Ⅱ两组SNC的发生率分别为 70 .0 0 %与 3 6.67% ;而 43例有SNC现象者中 2 1例 ( 4 8.84% )有诱发的房性心律失常 ,47例无SNC者中仅 9例 ( 19.17% )有诱发的房性心律失常 ,两者比较相差非常显著 (P <0 .0 1)。结论 SNC的发生与房性心律失常的诱发呈正相关。
Objective To investigate the incidence and clinical significance of abnormal atrial conduction (SNC). Methods Ninety patients without organic heart disease were examined by electrophysiological method to observe the presence of SNC and SNCZ and MDCT. According to the ability of intracardiac electrophysiological examination Induced atrial arrhythmia and divided into two groups (evoked atrial arrhythmias were Ⅰ group, not evoked as Ⅱ group), SNP detection rate of the two groups were compared to explore the relationship between SNC and atrial arrhythmia Sex. Results Of the 90 patients, 43 cases (4 7.78%) had SNC. The incidences of SNC in group Ⅰ and Ⅱ were 70.0% and 3 6.67% respectively. In 43 cases, SNC was found in 21 cases 4 8.84%) had induced atrial arrhythmia, and only 47 of them (19.17%) had induced atrial arrhythmia. There was a significant difference between the two (P <0.01). Conclusions The occurrence of SNC is positively correlated with the induction of atrial arrhythmia.