Diagnosis values by dynamic electrocardiogram in variant angina pectoris

Objective To investigate the diagnostic value by routine etectrocardiagram and dynamic electrocardiogram in patients with variant angina.Methods Conventional ECG and 24 h Holter test were performed and the results were compared in 80 patients with variant angina.Results Injurytype ST-segment elevation with the corresponding ST-segment depression,T-wave inversion or flattening in high-am-plitude T-wave corresponding lead,ventricular premature contraction,accelerated idioventricular rhythm,atrioventricular conduction block,giant R-wave and U-wave inversion,the detection rates of these abnormal ECG patierns were obversiouly higher than ECG.There was a significant difference (P ＜0.05).The peak time for the ECG abnormalities onset of variant angina was 00:00-08:00.Conclusions Dynamic ECG can show the whole process of variant angina,therefore it has a great value for guiding the diagnostic rate of variant angina. Key words: Variant angina;  Electrocardiagram;  Dynamic electrocardiogram