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目的探讨AMI患者心电图碎裂QRS波发生的常见情况与梗死部位及严重心律失常之间的关系。方法选择2012年1月~2013年2月我院收治的86例AMI患者作为研究对象，对所有患者的在入院后2~3d后的心电图碎裂QRS波的变化情况进行分析，同时将碎裂QRS波变化情况与患者的梗死部位变化产生情况以及出现严重心律失常时的主要情况进行对比分析。结果心电图中显示有碎裂QRS波的患者其房室的颤动、搏动以及心梗分布等方面发生率均比较高，相对于心电图中未显示有碎裂QRS波的患者而言，这些现象的发生率要高出很多。两者对比有明显差异（P＜0.05），具有统计学意义。结论 AMI患者心电图碎裂 QRS波发生情况与梗死部位及严重心律失常之间有非常密切的关系，若患者的心电图有QRS波出现，则要做好早期干预，否则会提高猝死率。“,”Objective to study the QRS wave of ecg rupture common in patients with AMI and the relationship between the area of infarction and severe arrhythmia. Methods randomly selected from January 2012 to February 2013,our hospital 86 cases of AMI patients as the research object,in al the patients in the hospital after 2~3 d after the change of QRS wave of electrocardiogram (ecg)rupture were analyzed,and the changes of QRS wave at the same time wil rupture and infarction area change situation as wel as in patients with severe arrhythmia during the main situation were analyzed. Analysis of the relationship between the three. The results show the ECG QRS wave of cracking in patients who atrioventricular fibril ation, myocardial infarction, and pulse rate distribution in areas such as relatively high, compared to the ECG QRS wave did not show fragmentation of patients, the occurrence of these phenomena rate is much higher. There are significant dif erences between the two contrast (P<0.05), with statistical significance. Conclusion display of QRS wave in electrocardiogram (ecg)in patients with atrioventricular tremor,beat and have higher incidence of myocardial infarction(ami) distribution,etc,as opposed to not show have QRS wave in electrocardiogram(ecg)of patients,the incidence of these phenomena are much higher.