完全性左束支阻滞Q-Tc延长与室性心动过速的关系  

Q-Tc prolongation and relationship with ventricular tachycardia in CLBBB

作　　者：赵平 黄桂花 

机构地区：[1]浙江省鄞县人民医院,315040

出　　处：《宁波医学》2000年第5期211-212,共2页

摘　　要：目的　探讨完全性左束支阻滞 (CLBBB)患者 2 4h动态心电图Q Tc延长及最快心率Q Tc较最慢心率Q Tc的延长部分 (Q Tcp)与室性心动过速 (VT)的关系。方法　分析 11例有VT的CLBBB患者和 14例无VT的CLBBB患者的动态心电图最快心率Q Tc ,最慢心率Q Tc及Q Tcp ,并与正常对照组作相互比较。结果　CLBBB患者的最快心率Q Tc、最慢心率Q Tc及Q Tcp均较正常对照组延长 (P <0 .0 0 1) ,而VT组最快心率Q Tc ,Q TCP比无VT组延长 ,两者差异有显著性 (P <0 .0 5 )。结论　CLBBB患者动态心电图最快心率Q Tc及Q Tcp可作为预测高危室性心律失常的指标。Objective To explore Q-Tc prolongation (Q-TcP) by 24h dynamic electrocardiogram(DEC) in patients with complete left bundle branch block(CLBBB), and the relationship between Q-TcP of the fastest heart rate Q-Tc compared with the slowest one and ventricular tachycardia (VT). Methods Analysed the fastest heart rate Q-Tc ,the slowest one and the Q-TcP in 11 CLBBB with VT and 14 CLBBB without VT by DEC, compared with control group. Results The fastest heart rate Q-Tc, the slowest heart rate Q-Tc and Q-TcP in CLBBB were all remarkably longer than control , and the fasteset heart rate Q-Tc, Q-TcP in CLBBB with VT were longer than without VT, there was significant difference. Conclusion The fastest heart rate Q-Tc and Q-TcP in CLBBB by DEC are prognostic indices for highly dangerous ventricular arrhythmia.

关 键 词：Q-TC延长 室性心动过速 左束支阻滞 动态心电图 

分 类 号：R541.76[医药卫生—心血管疾病] R541.71[医药卫生—内科学]