| 房室结折返性心动过速患者的室房阻滞现象 |
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| 引用本文： | 李鼎,李学斌,苑翠珍,许原,张海澄,张萍,郭继鸿.房室结折返性心动过速患者的室房阻滞现象[J].中国心脏起搏与心电生理杂志,2008,22(5). |
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| 作者姓名： | 李鼎 李学斌 苑翠珍 许原 张海澄 张萍 郭继鸿 |
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| 作者单位： | 北京大学人民医院心脏电生理室,北京,100044 |
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| 摘 要： | 目的分析经射频消融术证实的房室结折返性心动过速(AVNRT)患者基础状态下的室房(VA)阻滞和心动过速发作时心房侧传导阻滞现象的电生理特点和鉴别诊断方法。方法对行射频消融术治疗的861例AVNRT患者基础状态下和心动过速时伴有VA阻滞的患者的临床和电生理参数进行分析,并与同期不伴逆传阻滞的AVNRT患者进行对比。结果基础状态下心室起搏频率140次/分以下出现VA阻滞者53例,其中120次/分以下阻滞者37例,与无VA阻滞组相比男性比例增多,52例未能诱发心动过速,应用异丙肾上腺素后50例可诱发心动过速。心动过速发作时2例可见到心房侧的传导阻滞现象。结论部分AVNRT患者中在基础状态下可见VA阻滞现象,此时需要异丙肾上腺素等药物改善室房传导以诱发心动过速。心动过速发作时可见到心房侧传导阻滞现象,需仔细鉴别以明确诊断。
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| 关 键 词： | 电生理学 心动过速 室房阻滞 导管消融 射频电流 |
Ventrioatrial block in patients with atrioventricular nodal reentrant tachycardia. |
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| LI Ding,LI Xue-bin,YUAN Cui-zhen,XU Yuan,ZHANG Hai-cheng,ZHANG Ping,GUO Ji-hong.Ventrioatrial block in patients with atrioventricular nodal reentrant tachycardia.[J].Chinese Journal of Cardiac Pacing and Electrophysiology,2008,22(5). |
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| Authors: | LI Ding LI Xue-bin YUAN Cui-zhen XU Yuan ZHANG Hai-cheng ZHANG Ping GUO Ji-hong |
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| Abstract: | Objective To analyze the characteristics of ventrioatrial(VA) conduction in patients with atrioventricular nodal reentrant tachycardia(AVNRT).Methods The patients with AVNRT who underwent radiofrequency ablation were enrolled in this study.The electrophysiologic parameters of the patients in ventrioatrial block(VB) group and non-VB group were compared and differential methods were discussed.Result Fifty-three patients had VA block when the pacing rate less than 140 bpm in all of 861 patients,only 1 patient ... |
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| Keywords: | Electrophysiology Tachycardia Ventrioatrial block Cather ablation radiofrequency current |
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