论文部分内容阅读
目的观察心肌梗死后3~6个月患者心电图QTd、Tp-Te和Tp-Te/QT与对照组之间有无差异。方法选取自2011年1月至9月行心电图检查的心梗后3~6个月患者30例,男14例,女16例,平均年龄(51.2±11.94)岁;收集年龄、性别相匹配的对照组30例,男15例,女15例,平均年龄(50.4±9.45)岁,测量各组心电图QTd、Tp-Te间期并计算Tp-Te/QT值。结果心梗组Tp-Te和Tp-Te/QT比值均大于对照组,差异具有统计学意义(心梗组Tp-Te:101.9±14.5ms;Tp-Te/QT:0.287±0.04;对照组Tp-Te:75.7±12.4ms;Tp-Te/QT:0.193±0.03;p<0.05);QTd在两组之间无差异(心梗组:40.5±3.9ms;对照组:37.9±3.8ms;p>0.05)。结论心梗患者Tp-Te,Tp-Te/QT比值增高,可反映跨室壁复极离散度的变化,与心律失常的发生关系密切。
Objective To observe whether ECG QTd, Tp-Te, Tp-Te / QT and ECG in patients with myocardial infarction 3 to 6 months after myocardial infarction have any difference. Methods Thirty patients (14 males and 16 females, average age 51.2 ± 11.94 years) with myocardial infarction 3 to 6 months after electrocardiography were selected from January to September 2011. The age and gender were matched Control group of 30 cases, 15 males and 15 females, with an average age of (50.4 ± 9.45) years. The electrocardiogram QTd and Tp-Te interval were measured and the Tp-Te / QT values were calculated. Results The Tp-Te and Tp-Te / QT ratios in MI group were significantly higher than those in control group (Tp-Te: 101.9 ± 14.5ms, Tp-Te / QT: 0.287 ± 0.04, Tp (P <0.05); QTd was no difference between the two groups (MI group: 40.5 ± 3.9 ms; control group: 37.9 ± 3.8 ms; p > 0.05). Conclusions The Tp-Te, Tp-Te / QT ratio in patients with myocardial infarction is increased, which can reflect the change of transmural dispersion of repolarization, which is closely related to the occurrence of arrhythmia.