| 摘要: |
| ［摘要］ 目的 探讨特发性室速射频消融术后3d内电张调整性T波（EMTV）产生的相关性、变化规律及其临床意义。方法 对87例特发性室速患者（左室特发性室速47例，右室特发性室速40例）行射频消融术（RFCA）治疗，观察心室除极顺序及术后3d内心电图EMTV产生的相关性。结果 (1) EMTV的产生与心室异常除极顺序有关，右室流出道室速RFCA后不出现EMTV；(2) 左室特发性室速比右室特发性室速更易产生EMTV（P<0.01）； （3） EMTV的产生与术中消融的即时有效时间呈负相关，与其他的诱发条件无显著相关性；（4）不同部位的心室最早异常除极产生EMTV的导联分布特征及其深度、宽度不同。结论 特发性室速射频消融术后可出现EMTV，EMTV是一种心肌电生理特性，根据其特性可与缺血性心脏病、心肌病等器质性心脏病引起的T波改变相鉴别。 |
| 关键词: 特发性室速 射频消融术 电张调整性T波 心脏电生理 |
| DOI：10.3969/j.issn.1674-3806.2009.04.013 |
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| Clinical observation of electrotonic modulation of the T wave after radiofrequency current catheter ablation in idiopathicventricular tachycardia |
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LI Jing, ZHU Li-guang
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Department of Cardiology, Guangxi Nanxishan Hospital，Guilin Guangxi 541002, China
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| Abstract: |
| ［Abstract］ Objective To investigate the regularity and clinical significance of electrotonic modulation of the T wave （EMTV）within 3 days after radiofrequency current catheter ablation（RFCA）in idiopathicventricular tachycardia.Methods The sequence of ventricle depolarization and the emerge of EMTV within 3 days after RFCA were observed in 87 patients with idiopathicventricular tachycardia (47 left idiopathic ventricular tachycardia, 40 right idiopathic ventricular tachycardia). Results (1)There was no EMTV in the right outflow tract after RFCA;(2)The incidence rate of EMTV in left ventricular tachycardia was more higher than that in right ventricular tachycardia after RFCA(P<0.01); (3)The EMTV and the immediate effective time in RFCA was negatively correlated;(4)The characters of distribution of the lead and the depth 、width of EMTV after RFCA was different.Conclusion EMTV can occur after RFCA in paroxysmal tachycardia patients, which is a normal electrophysiological manifestation of heart muscle after an abnormal depolarization. |
| Key words: Idiopathicventricular tachycardia Radiofrequency current catheter ablation Electrotonic modulation of the T wave Cardiac electrophysiology |
