结果窦性心律时窦房结发出冲动，激动右心房上部并向右心房下部和左心房传导，而房颤时双心房均可见方向不一、片段的激动波或大的折返环，可见多个传导阻滞区。
During acute AF, there are multiple and discrete excitation wave fronts or reentry activities were found in both LA and RA, and bidirectional block regions could be shown.
目的探讨表现为非交替性文氏周期的房室交接区双层阻滞的心电图特点和临床意义。
Objective To explore electrocardiogram feature of non-alternating Wenchebach atrioventricular double layer block and it's clinical significance.
当以机械压迫阻滞感传，皮层体觉诱发电位地形图上只在下肢代表区出现一个反应，面部代表区的反应消失。
However, the response in the face representation disappeared and it was confined to foot representation of SI when the PSM was blocked by mechanical pressure.
目的观察心区交感神经阻滞对严重心力衰竭患者左心室舒张功能的影响。
Objective to investigate the effects of cardiac sympathetic blockade on left ventricular diastolic function in patients with dilated cardiomyopathy and severe heart failure (HF).
目的探索心区交感神经阻滞，能否改善扩张型心肌病的舒张功能。
Objective to investigate if diastolic function could be improved by cardiac sympathetic nerve blockade in patients with dilated cardiomyopathy (DCM).
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.
在林带上部，有林带间的阻滞减速区和林带后的涡旋减速区，在林带顶后部有集流加速区。
In the upper layer, there are the blocking speed-down zone inter-belt, the whirling speed-down zone behind the belt, the conflux accelerating zone just behind the top of shelterbelt.
他表示，信贷评级机构对欧元区采取了相比南美地区更严格的标准；欧盟与评级机构之间相处甚多阻滞。
He said that the ratings agencies were stricter on the Eurozone compared to South America and that the EU was having a difficult situation with the rating agencies.
他表示，信贷评级机构对欧元区采取了相比南美地区更严格的标准；欧盟与评级机构之间相处甚多阻滞。
He said that the ratings agencies were stricter on the Eurozone compared to South America and that the EU was having a difficult situation with the rating agencies.
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