摘要
Abstract
Objective To explore the application value of electrocardiographic fragmented QRS in the diagnosis of acute myocardial infarction, and to provide the basis for the ECG in the diagnosis of the disease. Method A retrospective analysis of 239 cases of coronary heart disease patients admitted to our hospital (including 102 cases of acute myocardial infarction in patients with clinical data), to the results of coronary angiography as the gold standard, of fragmented QRS complex, pathological Q wave and fragmentation of QRS and pathological Q wave sensitivity, specificity in diagnosis of acute myocardial infarction. Sensitivity and speciifcity compared the above electrocardiographic criteria in different parts of diagnosis of acute myocardial infarction. Result The sensitivity of fragmented QRS wave in diagnosis of acute myocardial infarction was 21.57%, compared to the pathologic Q wave, the difference was not statistically signiifcant (P>0.05), but the speciifcity and positive predictive value of fragmented QRS wave was 95.62%and 78.57%, were signiifcantly higher than those of pathological Q wave (P<0.05). Sensitivity to fragmentation of QRS wave and Q wave in pathological diagnosis of acute myocardial infarction was 40.20%, signiifcantly higher than that of fragmented QRS complex (P<0.05). Compared two indicators of speciifcity and positive predictive value, the difference was not statistically signiifcant (P>0.05). The sensitivity of fragmented QRS and pathological Q wave in the diagnosis of anterior wall and lateral wall myocardial infarction were signiifcantly higher than that of fragmented QRS and pathological Q wave (P<0.05). Conclusion QRS can be used as an important index fragmentation in the diagnosis of acute myocardial infarction, and combined pathological Q wave diagnosis can further improve the ECG in the diagnosis of acute myocardial infarction.关键词
碎裂QRS波/病理性Q波/急性心肌梗死Key words
Fragmented QRS/Pathological Q wave/Acute myocardial infarction
