The analysis of the relationship between resting electrocardiogram ST-T wave change and the results of coronary angiography / 中国现代医生

ABSTRACT

Objective To investigate the relationship of resting electrocardiogram (ECG) ST-T wave change and posi-tive outcome of coronary angiography (CAG). Methods A comparison was made between CAG results and routine 12-channel resting ECG of 1173 patients diagnosed as coronary heart disease (CHD) clinically in cardiovascular depart-ment of internal medicine in the first affiliated hospital of Chongqing medical university ,and their correlation was ana-lyzed. Results ECG ST-T change was not significantly correlated to the CAG positive outcome (Kappa=0.161,P<0.01);There was significant difference of the positive rates between those two examinations(P<0.01);The ECG positive result rates in different coronary artery lesion groups were significantly different (P<0.01); With the increase of coro-nary artery stenosis number, the positive rate of ECG significantly increased. (P<0.01). Conclusion ECG ST-T wave change might partially predict the coronary artery stenosis, but its clinical utility is limited for CHD diagosis compared with CAG. Therefore,it should be careful to diagnose CHD only according to ECG ST-T change in clinic,and clinical diagnosis shuld be made based on clinical symptom and other examinations.