摘要
目的探讨主动脉窦部室性早搏(简称"室早")和右心室流出道间隔部室早心电图特征的差别。方法选取12例右心室流出道间隔部室早(A组)心电图作为对照,分析12例主动脉窦部室早(B组)的心电图特征。结果与A组相比,B组V1、V2导联的R波时间指数增大[V1导联:(0.23±0.10)vs.(0.49±0.28);V2导联:(0.24±0.12)vs.(0.57±0.23);P均<0.05]。V1、V2导联的R/S波幅指数A组小于B组[V1导联:(0.10±0.02)vs.(0.87±0.55);V2导联:(0.21±0.14)vs.(1.13±1.49),P均<0.05]。A组胸前导联R波移行在V3导联或其后,B组胸前导联R波移行在V1或V2导联。A组V1、V2导联的R波移行指数小于B组[V1导联:(0.25±0.15)vs.(1.30±0.68);V2导联:(0.31±0.20)vs.(1.71±1.14),P均<0.05]。结论主动脉窦部室早与右心室流出道间隔部室早在V1、V2导联R波时间指数、R/S波幅指数、胸前导联R波移行位置及移行指数上有明显的差别。
Objective To investigate the difference in ECG characteristics of premature ventri-cular contraction （ PVC） originating separately from aortic sinus cusp （ ASC） and the septum of right ventricular outflow tract （ RVOT）.Methods The ECG characteristics of 12 ASC-originated PVC patients（ group B） were analyzed and compared with those of another 12 patients with PVC origina-ting from the septum of RVOT（group A）.Results The indexes of R-wave duration in lead V1,V2 were significantly lower in group A than those in group B [V1 lead： （0.23 ±0.10） vs.（0.49 ± 0.28）;V2 lead：（0.24 ±0.12） vs.（0.57 ±0.23）, P〈0.05, respectively].The indexes of R/S-wave amplitude in lead V1,V2 were significantly lower in group A than those in group B [V1 lead：（0.10 ±0.02） vs.（0.87 ±0.55）; V2 lead： （0.21 ±0.14） vs.（1.13 ±1.49）, P 〈0.05, respectively ] .The R-wave precordial transitional position was located in it or after it in group A while in lead V1 or V2 in group B.The transitional indexes of lead V 1 and V2 were significantly lower in group A than those in group B [V1 lead：（0.25 ±0.15） vs.（ 1.30 ±0.68）;V2 lead：（0.31 ± 0.20） vs.（1.71 ±1.14）, P〈0.05, respectively].Conclusion Between ASC-originated PVC and PVC originating from the septum of RVOT , there are significant differences in the indexes of R-wave duration , R/S-wave amplitude , and R-wave precordial transitional position and the transi-tional indexes in lead V 1 , V2 .
出处
《江苏实用心电学杂志》
2014年第6期411-414,共4页
Journal of Practical Electrocardiology JS
基金
国家自然科学基金青年基金资助项目(3000460)
关键词
室性早搏
心电图
主动脉窦
右心室流出道
导管消融
ventricular premature contraction
electrocardiogram
aortic sinus cusp
right ven-tricular outflow tract
catheter ablation
