左右心室起源的阵发性室性心动过速的临床特征和心电图分析  

Right or Left Ventricular Tachycardia:Clinical and Electrocardiogram Characteristics

作　　者：卢喜烈[1] 汪剑锋[2] 李智[2] 朱金秀[2] 马一鸣[1] 帅莉[1] 

机构地区：[1]中国人民解放军总医院心血管内科,北京市100853 [2]汕头大学医学院第一附属医院心内科

出　　处：《中国全科医学》2009年第18期1712-1713,共2页Chinese General Practice

摘　　要：目的探讨左、右心室起源的阵发性室性心动过速(阵发性室速)的临床特点和心电图特征。方法选取经12导同步动态心电图确诊为阵发性室速的患者61例,根据V1导联QRS波型特点分为左室起源室速组和右室起源室速组,比较两组患者的临床特征和QRS电轴、QRS时限、平均心室率和QT离散度(QTcd)等心电图参数。结果两组患者的基本临床特征和室速发作前ST-T改变、室速发作时QTcd、平均心室率和QRS时限间差别无统计学意义(P>0.05)。左室起源室速组QRS电轴为(118±102)度,右室起源室速组QRS电轴为(67±45)度,两组间差别有统计学意义(P<0.05)。结论不同心室起源的阵发性室速与患者的基本临床特征无关,QRS电轴对鉴别阵发性室速是起源于左心室还是右心室有一定临床价值。Objective To analyze the clinical and electrocardiogram characteristics of right or left ventricular tachyeardia. Methods Sixty - one paroxysmal ventrieular tachycardia patients diagnosed by 12 - lead ambulatory ECG were divided into groups right ventrieular taehyeardia （ RVT group） and left （LVT group ） according to QRS wave of V1 lead. The clinical features and parameters such as QRS electrical axis, QRS width, mean ventrieular rate and QTe dispersion （QTed） were compared between 2 groups. Results The QRS - axis of LVT group was higher than that of RVT （ 118.12 ±101. 65 vs 66. 59 ± 45. 45, P= 0.011 ）. There was not significant difference in clinical and electrocardiogram characteristics such as QRS width, mean ventricular rate, ST - T alteration and QTcd between 2 groups. Conclusion QRS - axis may be an useful parameter in differentiating the original site of paroxysmal ventricular tachyeardia.

关 键 词：心动过速 室性 心电描记术 QRS电轴 

分 类 号：R540.41[医药卫生—心血管疾病]