av node modification
房室结改良
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房室结改良术 atrioventricular node modulation ; AVNM
·2,447,543篇论文数据，部分数据来源于NoteExpress
进行慢径路改良，观察手术前后房室结的前传有效不应期和文氏阻滞点的改变。
The anterograde effective refractory period and Wenckebach block point were measured before and after ablation.
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