动态心电图诊断变异型心绞痛的临床价值研究

Diagnosis values by dynamic electrocardiogram in variant angina pectoris

目的探讨动态心电图和常规心电图对变异型心绞痛患者的诊断价值。方法80例变异型心绞痛患者应用常规心电图（ECG）和24h动态心电图（DCG）检测，并对两种方法进行比较。结果损伤型ST段抬高伴对应导联T段下移，T波高耸对应导联T波倒置或低平，室性期前收缩、加速性室性逸搏、房室传导阻滞、巨型U波、R波倒置检出率比较，DCG明显高于ECG（P〈0．05）。心电图异常发作高峰时间在0：00—8：00。结论动态心电图明显提高了对变异型心绞痛的检出率，对临床诊断和治疗有更重要的指导性意义。

Objective To investigate the diagnostic value by routine electrocardiagram and dynamic electrocardiogram in patients with variant angina. Methods Conventional ECG and 24 h Hoher 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 ohversiouly 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.