摘要：目的 观察射频消融术对右侧旁道显性预激患者心功能的影响.方法 选择32例右侧旁道显性预激且反复发作房室折返性心动过速的患者,通过比较射频消融术术前、术后经胸心脏超声及多普勒检查的参数以判定左心功能.结果 射频消融术后左室舒张期A峰较术前显著增高,E/A比值较术前显著降低,而手术前后心率、左室舒张末期容积、左室内径缩短率、左室射血分数、每搏输出量和舒张期E峰差异均无统计学意义.结论 成功的射频消融术可以改善右侧旁道显性预激并室上性心动过速患者左室充盈和舒张功能,但对左室收缩功能未见明显影响. Abstract： Objective To observe the influence of radiofrequency current ablation (RFCA) on left ventricular (LV) systolic and diastolic function in patients with right - lateral Wolff - Parkinson -White syndrome( W- P- W syndrome). Methods The study group consisted of 32 patients with right -side WPW syndrome and recurrent episodes of AVRT without any concomitant diseases. Transthorasic echocardiography (TTE) and doppler were performed before and after RFCA in order to assess LV systolic and diastolic function. Results Doppler analysis revealed an increase in A wave and a decrease in E/A ratio. No significant differences were found in HR, LVEDV, FS, EF, SV and E wave. Conclusions RFCA of accessory pathway in patients with right - lateral WPW syndrome and AVRT are associated with improvement of LV filling and diastolic function. No significant differences in regard to LV systolic function are found post RFCA.

关键词：射频消融术后 旁道 显性预激 患者 左心功能 

单位：郑州大学第一附属医院急诊科 450052 郑州大学第一附属医院心内科 450052