Value of Electrocardiogram Combined with Clinical Features in the Diagnosis of Angina Pectoris of Coronary Heart Disease
Objective To study the value of electrocardiogram combined with clinical features in the diagnosis of angina pectoris of coronary heart disease.Methods A total of 68 patients with suspected coronary heart disease and angina pectoris who were diagnosed and treated in our hospital from June 2020 to June 2023 were selected as the research objects.All patients underwent electrocardiogram examination and clinical feature analysis.Coronary angiography was used as the diagnostic standard to observe the diagnostic efficacy of different diagnostic methods(sensitivity,specificity,positive predictive value,negative predictive value)and the detection rate of different types of angina pectoris.The consistency and ROC curve of the diagnostic results with coronary angiography were analyzed.Results The sensitivity,specificity,positive predictive value and negative predictive value of electrocardiogram examination+clinical feature analysis in the diagnosis of angina pectoris of coronary heart disease were higher than those of electrocardiogram examination and clinical feature analysis(P＜0.05),and the sensitivity,specificity,positive predictive value and negative predictive value of electrocardiogram examination were higher than those of clinical feature analysis(P＜0.05).The detection rate of stable and unstable angina pectoris diagnosed by electrocardiogram examination+clinical feature analysis was higher than that of electrocardiogram examination and clinical feature analysis alone,and the detection rate of electrocardiogram was higher than that of clinical feature analysis(P＜0.05).The results of electrocardiogram+clinical feature analysis in the diagnosis of angina pectoris of coronary heart disease were highly consistent with those of coronary angiography(Kappa=0.921),and the consistency was higher than that of electrocardiogram and clinical feature analysis(P＜0.05).ROC curve showed that there was no significant difference in AUC area between ECG examination and clinical feature analysis in the diagnosis of angina pectoris of coronary heart disease(P＞0.05).The AUC area of ECG examination+clinical feature analysis in the diagnosis of angina pectoris of coronary heart disease was larger than that of ECG examination and clinical feature analysis(P＜0.05).Conclusion The value of electrocardiogram combined with clinical feature analysis in the diagnosis of angina pectoris of coronary heart disease is high.It can basically obtain similar results as coronary angiography,and it is non-invasive and safe for patients.It is worthy of clinical attention.
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