| Objective: When myocardial injury in heart disease patients,such as the formation of myocardial ischemia or myocardial scar tissue,myocardial cell depolarization slowed caused electrophysiological delay,electrocardiogram showed fragmentation of QRS wave(f QRS)appears.FQRS wave group is a sign of abnormal depolarization of the 12 lead ECG,which is related to the formation of myocardial scar.FQRS wave refers to the conventional 12 lead ECG in(filter range,0.15-100Hz;AC filter,60 Hz,25mm / s,10 mm/ m V)in two related in lead RSR ’type(more than 1 R’ wave,S wave,R wave or notch).FQRS wave is divided into QRS < 0.12 s and QRS time than 0.12 s two,which is a typical f QRS wave.This study through the detection of typical patients with f QRS wave infarction and myocardial infarction,coronary artery disease and myocardial infarction related factors(gender,age,time of onset,hypertension,diabetes),to explore the relationship between clinical diagnosis and f QRS wave myocardial infarction on the value and the emergence of f QRS and myocardial infarction the scope and severity of coronary artery disease.Methods: In this study,a total of 166 hospitalized patients with positive coronary angiography(CAG)during the period of 2016.30-2016.12 months in Department of Cardiology of Affiliated Hospital of Zunyi Medical College were selected,with an average age of 60.3±11.9.According to whether the detection of f QRS wave were divided into f QRS group(n=81)and non f QRS group(n=85),the detection rate of coronary angiography results were compared with f QRS wave in different parts of myocardial infarction and myocardial infarction patients with different difference in coronary artery disease.The effects of gender,age,time of onset,location of myocardial infarction,branch of vascular lesion,PCI stent implantation,hypertension and diabetes on the incidence of f QRS were analyzed.Application of SPSS19.0 software for statistical analysis,count data expressed as a percentage,using X-test.All the results were statistically significant by P<0.05.Results:1.The detection rate of f QRS wave in age<55 and age>55 group was 54.2% and 48.6.%,respectively.The detection rates of f QRS wave in male and female groups were 48.6.%and 54.2%,respectively.The detection rate of f QRS wave in hypertension group and normal blood pressure group was 40.6% and 54.6%,respectively.The detection rates of f QRS wave in diabetic group and non-diabetic group were 56.3% and 46.2%,respectively.There was no significant difference in the detection rate of QRS wave and the related factors of myocardial infarction.2.Anteroseptal anterior wall group,inferior group and posterior wall group were detected by f QRS 54.7.%,33.8% and 80%.P=0.002,P < 0.05,the difference was statistically significant.Occurrence of theanterior wall myocardial infarction f QRS detection rate of f QRS higher than inferior myocardial infarction.The highest detection rate of f QRS was found in posterior wall myocardial infarction3.The detection rates of f QRS in the Left Anterior Descending(LAD),Left Circumflex branch(LCX)and Right Coronary Artery(RCA)were 46.6%,36.8% and 36.4%,respectively.P =0.211,P > 0.05,the difference was not statistically significant.It can be seen that the detection rate of f QRS has nothing to do with different coronary artery disease.When comparing the detection rate of f QRS and the number of coronary artery lesions,the detection rates of single,double and three lesions were f QRS 66.7%,34.3%and 43.1%,P<0.05,the difference was statistically significant.The detection rate of f QRS was higher in the patients with single branch lesion than that in three cases with double branch lesion.4.The detection rate of f QRS in PCI stent implantation group and without implantation group was 39.5% and 72.3%,P < 0.05,respectively,and the difference was statistically significant.After PCI stent implantation,the detection rate of f QRS decreased significantly.It can be seen that early coronary PCI therapy can significantly improve myocardial ischemia and prevent further enlargement of infarct size,thereby reducing myocardial scar tissue and reducing f QRS detection rate on ecg.Conclusion:1.the detection rate of f QRS was not significantly correlated with the occurrence of myocardial infarction,such as age,gender,hypertension and diabetes.2.the detection rate of f QRS was different in different parts of myocardial infarction.The posterior wall detection rate was the highest,followed by the anterior wall,and the posterior wall was the lowest.3.The detection rate of f QRS was not related to the branch of coronary artery disease.However,the detection rate of f QRS was higher than that of the double branch.4.The detection rate of f QRS was significantly decreased after PCI stent implantation.It is suggested that the early PCI treatment of coronary artery can improve myocardial ischemia and prevent further enlargement of infarct area. |
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