Analysis of ECG ST-T changes and risk factor of coronary heart disease in women by coronary angiography

Abstract

Objective To investigate the risk factors of coronary heart disease (CHD) and electrocardiogram (ECG) ST-T changes in women with coronary heart disease. Methods A total of 249 CHD patients diagnosed by electrocardiogram were divided into two groups by gender, and were reviewed by coronary angiography; diagnose results of CHD according to ECG were calculated by coronary angiography; clinical situations of women and men with CHD were compared; otherwise, 80 cases of non-coronary heart disease women checked over the same period were chosen as the control group, to investigate the risk factors of CHD in women. Results The rate of false-positive ECG diagnosis of CHD in female patients (33.33%) was higher than that in male patients (28.68%), and the overall positive rate was 69.08%; the number of coronary artery lesion, type of angina pectoris and ST-T changes in female patients were different from those in male patients with CHD, and the difference were statistically significant (P<0.01); women with CHD were different from the healthy people in the aspects of age, hypertension, cholesterol, diabetes, smoking and high uric acid, and the differences were statistically significant (P<0.01); age, hypertension, high cholesterol, diabetes, smoking and high uric acid were risk factors of coronary heart disease in women. Conclusions There is a certain of deviation in the diagnosis of CHD by ECG, and the accuracy of positive rate of CHD in female patients is lower than that in male patients. CHD in female patients are mostly single, unstable angina and T wave changes; age, hypertension, high cholesterol, diabetes, high uric acid and smoking are risk factors of CHD in women, which are worthy of reference. Key words: Coronary angiography; Electrocardiogram; ST-T changes; Risk factors