摘要
目的 探讨左心室纤维肌束及其特征与早期复极综合征的关系。方法 选择 31例早期复极综合征患者 (ERS组 ) ,简单随机法选择 10 0例健康人 (对照组 ) ,检测其左室纤维肌束 ,并对左室纤维肌束发生率、左室纤维肌束位置及数目的构成比、左室纤维肌束的长度、宽度及左室纤维肌束与室间隔的夹角进行统计学分析。结果 ERS组与对照组相比较 ,左室纤维肌束的发生率差异无显著性意义 (P >0 .0 5 ) ;两组左室纤维肌束的不同数目例数构成比、长度、宽度均差异无显著性意义 ( P >0 .0 5 ) ;两组之间左室纤维肌束位置的构成比差异有显著性意义 (P <0 .0 0 1) ,ERS组起于室间隔中部而止于左室游离壁中段的左室纤维肌束约 47% ,对照组仅 2 % ;ERS组左室纤维肌束与室间隔的夹角显著高于对照组 (P <0 .0 1)。结论 左室纤维肌束的位置及夹角是导致早期复极综合征的独立危险因素 ,推测其原因主要与左室纤维肌束对起止点的牵拉引起部分内膜下心肌较正常激动顺序提前复极 。
Objective To investigate the relationship between early repolarization syndrome (ERS) and left ventricular fibromuscular band (LVFB).Methods Tirty-one cases with ERS (ERS group) and randomized 100 healthy persons without ERS (control group) were studied.LVFB positive rates and the factors of LVFB probably affecting ERS including length,width,number,position and angle which was formed by endocardium of intraventricular septum ( IVS ) in side of left ventricular and LVFB were statistically analysed in two groups.Results There was no significant difference in the positive rates with LVFB,lengths,widths and the proportions of LVFB numbers between ERS group and the control group (P> 0.05). In comparing the proportions of positions,there was a significant difference between two groups (P< 0.001).The positive rates with the position from midal IVS to midal free wall were 47% in ERS group while 2% in control group, the angle in ERS group was larger than that in the control group (P< 0.01).Conclusions The position and the angle of LVFT were independent risk factors of ERS.The supposition may be due to pull of LVFB on the arising and ending points,which causes partly the endometrial cardiac muscle to repolarize earlier and so the repolarization is not in harmony.
出处
《中华超声影像学杂志》
CSCD
2003年第1期9-13,共5页
Chinese Journal of Ultrasonography
基金
河北省科学技术研究与发展计划资助 (0 0 2 761 4 8D)
关键词
早期复极综合征
纤维肌束
心室
心电图
Ultrasonography
Early repolarization syndrome
Fibromuscular band
Heart ventricle
