[Relationship between the ischemic ST-T changes in ECG and the coronary artery diseases].
OBJECTIVE
To analyze the relationship between the ischemic ST-T changes in electrocardiogram (ECG) and the coronary artery diseases based on the perspective of diagnostics.


METHODS
A total of 341 patients, who underwent coronary angiography in Department of Cardiology of Xiangya Hospital, Central South University from June 2013 to April 2014, were enrolled for this study. The internationally recognized diagnostic criteria for ischemic ST-T changes in ECG and the Judkins diagnostic criteria for coronary angiography were applied, respectively. The sensitivity and specificity of ECG were analyzed.


RESULTS
There were more ischemic ST-T changes in women than that in men (P<0.01). Ischemic changes in coronary angiography were not significantly different between male and female patients (P>0.05). For ischemic diagnostic tests by ECG ST-T, the total sensitivity and specificity was 83.6% and 54.4%, respectively. The sensitivity and specificity was 82.3% and 68.0% or 85.0% and 28.2% in the male or female group, respectively.


CONCLUSIONS
Ischemic ST-T changes in ECG possess important value in the diagnosis of the coronary artery diseases. The sensitivity of ECG in the diagnosis of myocardial ischemia in women was higher than that in men, whereas the specificity of ECG in the diagnosis of myocardial ischemia in men was higher than that in women.
Department of Emergency, Third Xiangya Hospital, Central South University, Changsha 410013, China.
Wei
W
Huang
Department of Emergency, Third Xiangya Hospital, Central South University, Changsha 410013, China.
Mingshi
M
Yang
Department of Emergency, Third Xiangya Hospital, Central South University, Changsha 410013, China.
Xuehui
X
Xiao
Department of Emergency, Third Xiangya Hospital, Central South University, Changsha 410013, China.
Siqing
S
Ding
Department of Emergency, Third Xiangya Hospital, Central South University, Changsha 410013, China.
Tao
T
Xiao
Department of Emergency, Third Xiangya Hospital, Central South University, Changsha 410013, China.
Meiying
M
Guo
Public Health School, Central South University, Changsha 410078, China.
Lulu
L
Qin
Public Health School, Central South University, Changsha 410078, China.
Shuiyuan
S
Xiao
D017023:Coronary Angiography; D003324:Coronary Artery Disease / Q000175:diagnosis*; D004562:Electrocardiography; D005260:Female; D006801:Humans; D008297:Male; D017202:Myocardial Ischemia / Q000175:diagnosis*; D012680:Sensitivity and Specificity