【摘要】 目的探讨期前收缩后心肌复极异常的临床意义。方法分析250例期前收缩后心肌复极的变化情况。结果期前收缩伴心肌复极异常组和无复极异常组,心血管疾病分别为70/80例与58/170例,其中冠心病分别39/80例与18/170例,差异有显著性意义(P<0.01)。冠心病期前收缩后T波倒置加深、ST段改变、T波改变伴ST段和/或U波异常较其它各疾病组明显增高,差异均有显著性意义(P<0.05)。结论期前收缩后伴心肌复极异常主要见于心血管疾病,可提示为器质性期前收缩,有助于与功能性期前收缩相鉴别,对冠心病的诊断有一定意义。更多还原

【Abstract】 Objective To explore clinical significance and its causes of myocardium repolarization. Methods 250 cases of unusual changes of myocardium repolarization after ventricular premature beats were analyzed. Results Among 80 patients with irregular myocardium repolarization, there were 70 cardiovascular disease (39 suffered from coronary artery disease), while of 170 patients without irregular myocardium repolarization, 58 were cardiovascular disease (18 suffered from coronary artery disease) (P<0.01).Deepening of inverted T wave and ST segment and/or irregular U wave were more frequent after premature beat in the coronary disease patients than other type of diseases (P<0.05). Conclusion Irregular myocardium repolarization after premature beat are mainly seen among patients with cardiovascular diseases, indicating it can be serve as a precursor of organic premature beat, differentiating from a functional one, therefore it is beneficial to diagnosis of coronary disease.更多还原