Diagnostic Value Analysis of Dynamic Electrocardiogram QTc Interval Combined with Exercise Plate Test in Myocardial Ischemia of Coronary Heart Disease
Objective:To investigate the diagnostic value of dynamic electrocardiogram QTc interval combined with exercise plate test in myocardial ischemia of coronary heart disease.Method:A total of 108 patients with suspected myocardial ischemia of coronary heart disease admitted to the First People's Hospital of Kunshan City from January 2019 to December 2022 were selected,and exercise plate test and dynamic electrocardiogram were performed in all patients.The diagnostic results of coronary angiography as the gold standard,the efficacy of the above two methods in diagnosing myocardial ischemia of coronary heart disease was compared.Result:108 patients with suspected myocardial ischemia of coronary heart disease were examined by coronary angiography,of which 30 cases were negative,accounting for 27.78%,and 78 cases were positive,accounting for 72.22%.20 cases were negative and 51 cases were positive diagnosed by dynamic electrocardiogram QTc.25 cases were negative and 50 cases were positive diagnosed by exercise plate test.29 cases were negative and 62 cases were positive diagnosed by dynamic electrocardiogram QTc interval combined with exercise plate test.The sensitivity,specificity and accuracy of dynamic electrocardiogram QTc interval combined with exercise plate test in diagnosing of myocardial ischemia of coronary heart disease respectively was 79.49%,96.67%and 84.26%.The sensitivity and accuracy of combined diagnosis were higher than those of dynamic electrocardiogram QTc interval and exercise plate test single diagnosis,the specificity of combined diagnosis was higher than that of dynamic electrocardiogram QTc interval single diagnosis,the differences were statistically significant(P<0.05).Conclusion:Compared with single diagnosis,dynamic electrocardiogram QTc interval combined with exercise plate test has higher value in diagnosing of myocardial ischemia of coronary heart disease,and can provide reliable electrocardiology basis for clinical diagnosis.
万方数据
维普
