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目的 探讨小儿心动过速后综合征的发病相关因素及发作终止后心电图的动态变化。方法 依阵发性心动过速终止后有无Ｓ－ Ｔ 段、Ｔ波的改变，把符合研究对象的１８ 例分为两组，并就性别、年龄、发作时心率和发作持续时间等因素进行对比分析，同时对心动过速后综合征组发作后的心电图动态变化进行追踪观察。结果 心动过速后综合征组发作时心率为１５０ ～２５０／ｍｉｎ，发作持续时间为２４ ～７２ 小时，而在无心动过速后综合征组（ 对照组），分别为１５０～２３０／ｍｉｎ 和０－５ ～２３ 小时。结论 此症的发生主要与心动过速发作的持续时间长短有关，而发作时心率的快慢不是决定性因素。认识本症对正确诊断和处理阵发性室上性心动过速有重要意义。
Objective To investigate the incidence of post-tachycardia syndrome related factors and the onset of electrocardiogram after the termination of dynamic changes. Methods According to the presence or absence of S-T segment and T-wave after termination of tachycardia, 18 patients were divided into two groups according to the gender, age, heart rate and the duration of the attack Comparative analysis, at the same time, after tachycardia syndrome episode of electrocardiogram dynamic changes were observed. Results The heart rate of the post-tachycardia syndrome group was 150 ~ 250 / min and the duration of the attack was 24 ~ 72 hours. However, in the post-tachycardia syndrome group (control group), the heart rate was 150 ~ 230 / min and 0-5 ~ 23 hours. Conclusions The incidence of this disorder is mainly related to the duration of tachycardia episodes, but the heart rate during the attack is not the decisive factor. Understanding of the disease for the correct diagnosis and treatment of paroxysmal supraventricular tachycardia has important significance.