动态心电图诊断阵发性室性心动过速的临床分析

Clinical Analysis of Dynamic Electrocardiogram in the Diagnosis of Paroxysmal Ventricular Tachycardia

目的探讨动态心电图诊断阵发性室性心动过速(PPVT)的临床效果。方法选择90例PPVT患者,均进行动态心电图检测,根据波形特征分为A组(右室起源,n=48)与B组(左室起源,n=42)比较各参数。结果两组平均心室率、QTcd、QRS时限、ST-T段改变发生率比较,差异无统计学意义(P>0.05);A组QRS电轴小于B组,差异有统计学意义(P<0.05);A组出现ST-T段改变为81.25%,B组为76.19%,经Logistic回归分析结果显示,QRS电轴是PPVT发生的危险因素(OR>1,P<0.05)。结论动态心电图诊断PPVT具有较高的价值,QRS电轴是PPVT发生的危险因素,通过测量QRS电轴可鉴别起源心室,利于疾病早期诊疗。

Objective To investigate the clinical effect of dynamic electrocardiogram in the diagnosis of paroxysmal ventricular tachycardia(PPVT).Methods 90 patients with PPVT were selected for dynamic ECG detection.According to the waveform characteristics,they were divided into group A(right ventricular origin,n=48)and group B(left ventricular origin,n=42).Results There was no significant difference in mean ventricular rate,QTcd,QRS time limit and the incidence of ST-T segment changes between the two groups(P>0.05);The QRS axis of group A was smaller than that of group B,and the difference was statistically significant(P<0.05);ST-T segment changes were 81.25%in group A and 76.19%in group B.logistic regression analysis showed that QRS axis was a risk factor for PPVT(or>1,P<0.05).Conclusion Dynamic electrocardiogram has high value in the diagnosis of PPVT.QRS axis is a risk factor for PPVT.Measuring QRS axis can identify the origin of ventricle,which is conducive to the early diagnosis and treatment of the disease.