射频消融治疗不适当的窦性心动过速一例  

Radiofrequency catheter ablation on a patient with inappropriate sinus tachycardia

作　　者：王方正[1] 张奎俊[1] 方丕华[1] 马坚[1] 楚建民[1] 华伟[1] 田瑞国[1] 陈柯萍[1] 鲁志民[1] 朱克平[1] 孙瑞龙[1] 陈新[1] 

机构地区：[1]中国医学科学院中国协和医科大学心血管病研究所阜外心血管病医院,100037

出　　处：《中华心律失常学杂志》1997年第2期117-121,共5页Chinese Journal of Cardiac Arrhythmias

摘　　要：目的:探讨不适当的窦性心动过速的病因及射频消融治疗的有效性和安全性。方法:比较射频消融前、后动态心电图、心率变异性、固有心率等变化。结果:射频消融后日平均心率、固有心率明显下降,LF/HF 比率减低,PNN50及 RMSSD 增高。结论:不适当的窦性心动过速可能是由于交感神经张力增高或迷走神经张力减退而导致窦房结自律性增高。射频消融治疗不适当的窦性心动过速安全而有效。Objective:To investigate the mechanism of inappropriate sinus tachycardia and the effec- tiveness and safety of modification of sinoatrial node with radiofrequency catheter ablation.Methods: Comparison of the changes in Holter,heart rate variability,and intrinsic heart rate between prior to and af- ter radiofrequency catheter ablation.Results:Average heart rate during 24 h,intrinsic heart rate,LF/ HF ratio decreased obviously,but PNN50 and RMSSD increased.Conclusion:The inappropriate sinus tachycardia could be due to abnormal sinoatrial nodal automaticity resulting from excessive sympathetic nerve influences or deficient vagal nerve influences and modification of sinus node with radiofrequency catheter ablation is a safe and effective method for treatment of inappropriate sinus tachyeardia.

关 键 词：窦性心动过速 射频消融治疗 心率变异性 增高 窦房结 迷走神经张力 交感神经 动态心电图 病因 LF 

分 类 号：R541[医药卫生—心血管疾病] R542[医药卫生—内科学]