Abstract：Objective To explore the clinical value of Nishach precision electrocardiogram(SaahECG) and electrocardiogram(ECG) in diagnosing the patients with non-ST-segment elevation coronary heart disease(CHD). Methods SaahECGs and ECGs were synchronously collected from 871 patients with chest pain, chest tightness or other suspected symptoms of CHD. A total of 75 inpatients(accounting for 8.61%) out of them were screened out who had undergone coronary angiography(CAG) and matched with the inclusion criteria. According to CAG results, they were divided into two groups: one group with stenosis of at least one of the main branches of coronary artery≥70% and the other group with coronary stenosis <70%. The two parameters of SaahECG(the number of wavelet in ST-T segment and its proportion in duration) and ECG were analyzed. ResultsThe sensitivity of SaahECG and ECG in diagnosing CHD was 87.72% and 26.32%, respectively while the specificity was separately 22.22% and 72.22%. Conclusion As a new technique to record the electrical activity of the heart, SaahECG is superior to ECG in sensitivity of CHD diagnosis, and is safer and easily operated.
2018, Vol. 27 
