论文部分内容阅读
患者女性,39岁。有阵发性心动过速史2年,因突感心慌7小时后来院就诊。心电图检查:见匀齐而快速的室上性QRS 波群,频率125次/分。系阵发性心动过速(PSVT)(附图A)。即行食道心室结多径路传导的发生基础有已了一定认识。房室结内部超微结构显示,传导纤维呈网状交织,到了结—希区传导纤维呈现较整齐的纵行排列。传导纤维之间有胶原纤维形成自上而下的纵行分隔,这种
Patient female, 39 years old. A history of paroxysmal tachycardia 2 years, due to sudden panic seven hours later came to hospital. ECG examination: See homogeneous and rapid supraventricular QRS complex, the frequency of 125 beats / min. Department of paroxysmal tachycardia (PSVT) (Figure A). That line of esophageal ventricular multi-pathways have been the basis of conduction has been a certain understanding. Atrioventricular node ultrastructure showed that the conductive fibers were reticular intertwined, to the junction - Hitch zone fibers showed a neat alignment. Between the conductive fibers collagen fibers form a top-down longitudinal separation, this