目的：探讨射频消融改良房室交界区的形态学基础。
Objective: To investigate the morphological basis of atrioventricular junctional modification using radiofrequency ablation.
结论：不同种属动物房室交界区形态结构存在种属差异。
Conclusion: species difference exist in atrioventricular junction among different species of animals.
目的进一步认识和评价房室交界区双层阻滞的心电图改变和临床意义。
Objective To understand and evaluate electrocardiography feature and clinical manifestation of atrioventricular junctional double layer block.
不同种属动物房室交界区与心房肌连接部位及相连心房肌细胞形态有差异。
Species difference existed in the areas where the cells of atrioventricular junction connected with atrium among those species.
目的：在大鼠心肌缺血模型上研究房室交界区(房室结及房室束)的形态学变化。
Objective: To study the morphological changes of atrioventricular junction area (atrioventricular node and atrioventricular bundle) on the myocardial ischemia model of rat.
不同种属动物房室交界区细胞束的形态特征及其在房室交界区立体结构中的位置有差异；
There were species difference in the cell shape of those distinct cellular bundles and their position in the architecture of atrioventricular junction.
本研究表明，直流电击消融房室交界区损伤广泛而不易控制，急慢性心律失常影响消融的效果和预后。
It was concluded that DC ablation of AVJ may have early and late proarrhythmic effects which influences the effect and prognosis of catheter ablation.
本研究表明，直流电击消融房室交界区损伤广泛而不易控制，急慢性心律失常影响消融的效果和预后。
It was concluded that DC ablation of AVJ may have early and late proarrhythmic effects which influences the effect and prognosis of catheter ablation.
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