左后分支折返型室速患者窦律时的体表心电图特点

发布时间：2018-06-10 08:52

  本文选题：左后分支 + 室性心动过速　； 参考：《广西医科大学》2017年硕士论文

【摘要】：目的探索左后分支折返型室速患者在射频消融术前的窦律体表心电图特点。方法选取2007年1月-2017年1月在广西医科大学第一附属医院经心脏电生理检查确诊左后分支折返型室速并行射频消融术治疗的患者共计45人。分别测量术前窦律时体表心电图QRS波群的形态及额面心电轴,进行统计分析。结果45例病人,术前窦律时QRS额面电轴中位数为+79°(-90°?+193°),电轴在正常范围者23例(51.11%),电轴为+48°±35°,电轴左偏者2例(4.44%),电轴分别为-90°和-63°,电轴右偏者19例(42.22%),电轴为+107°±20°,电轴极度右偏者1例,电轴为+193°。术前呈现左后分支传导阻滞者7人(15.56%),电轴在+93°?+133°之间;术前未呈现左后分支传导阻滞者38人(84.44%),电轴在-90°?+86°之间。Ⅰ导联QRS波呈现RS图形者(即R波、S波振幅的绝对值相等)共9人(20%),电轴均为+90°。结论部分左后分支折返型室速患者窦律时的体表心电图表现出左后分支传导阻滞的特点。
[Abstract]:Objective to investigate the characteristics of sinus surface electrocardiogram in patients with left posterior branch reentrant ventricular tachycardia before radiofrequency ablation. Methods A total of 45 patients with left posterior reentrant ventricular tachycardia and radiofrequency ablation were selected from January 2007 to January 2017 in the first affiliated Hospital of Guangxi Medical University. The shape of QRS wave group and the frontal ECG axis were measured before sinus rhythm before operation, and the statistical analysis was carried out. Results 45 patients, Before sinus rhythm, the median of QRS frontal axis was 79 掳-90 掳-193 掳, 23 cases were in normal range, the axis was 48 掳卤35 掳, the left axis was -90 掳and -63 掳, the right axis was -90 掳and -63 掳, the electric axis was 107 掳卤20 掳, the electric axis was extremely right deviation in 1 case, and the electric axis was 193 掳. There were 7 patients with left posterior branch block before operation, and the electric axis was between 93 掳and 133 掳. The left posterior branch block was not seen in 38 patients before operation, and the electric axis was between -90 掳and 86 掳. The QRS wave in lead I showed RS pattern (i.e., the absolute value of amplitude of R wave S wave was equal). Conclusion the electrocardiogram of left posterior branch reentrant ventricular tachycardia showed the characteristics of left posterior branch block in sinus rhythm.
【学位授予单位】：广西医科大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：R541.7

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