非阵发性房性心动过速动态心电图特征及其临床意义

Features and evaluation of non-paroxysmal atria tachycardia in dynamic electrocardiogram

为探讨非阵发性房性心动过速的临床意义,对69例非阵发性房性心动过速患者的动态心电图和临床资料进行详细分析,其中47例有器质性心脏病(Ⅰ组),22例无明显器质性心脏病(Ⅱ组)。分析显示I组平均年龄高于Ⅱ组(P<0.01);两组非阵发性房性心动过速的表现形式不同,Ⅰ组以期前收缩多见,Ⅱ组以逸搏型多见(P<0.01);Ⅰ组非阵发性房性心动过速频率较快、阵数多,发作前窦性频率较快且多伴有房性、室性心律失常,窦房结功能、房室传导功能障碍及ST段压低、U波改变;而Ⅱ组除非阵发性房性心动过速外无其他心电图异常表现。提示动态心电图对非阵发性房性心动过速患者的临床诊断有一定的实用价值。

To investigate clinical significance of non-parosxysmal atrial tachycardia(NPAT), we analysed dynamic electrocardiogram and clinical data of 69 patients with non-paroxysmal atria tachycardia . Results showed that 47 patients had structural heart disease (Group Ⅰ ), and 22 patients had none (Group Ⅱ ) . Patients in group Ⅰ were older than those in group Ⅱ (P < 0.01); and premature beat was main feature in Group Ⅰ , however, escape was main one in group Ⅱ , high atrial rate , fregquent and rapid sinus frequency before onset with a-trial or ventricular arrhythmia, sino-atrial or atrioventricular node function of changes in ST - U were often concurrent in 24 - h dynamic electrocardiogram of group Ⅰ , but not in group Ⅱ . It suggested that dynamic electrocardiogram was a valuable diagnostic method for NPAT.