射频消融房室结折返性心动过速——比较分析老年人与青年人的电生理特点

Comparison between elderly patients and youngsters: in selective radiofrequency ablation of the slow pathway for atrioventricular nodal reentrant tachycardia

目的 初步比较和分析老年人与青年人在房室结折返性心动过速 (AVNRT)射频消融方面的电生理特点。方法 按年龄将AVNRT分为Ⅰ老年组 (年龄 (6 0岁 )及Ⅱ青年组 (14～ 40岁 ) ,行慢径消融 ,进行消融前后和组间的电生理参数比较 ,分析两组的电生理特点。结果 Ⅰ组 30例 ,Ⅱ组 40例 ,均消融成功 ,随访无复发 ,亦无严重并发症出现。两组比较 ,Ⅰ组多合并器质性心脏病 (17/30v s3/40 ) ,而慢径残存率低 (3/30v s 14/40 ) ;Ⅰ组的心动过速周长 ,消融前后窦性心律周长 ,消融后房室结前传文氏周期均较Ⅱ组延长 (P <0 0 5 )。结论 老年人的房室结前传电生理特性较青年人为差 。

Objective To compare and analyze the electrophysiological characteristics of atrioventricular nodal reentrant tachycardias (AVNRT) in elderly patients and youngsters Methods This study consisted of two groups Group Ⅰ included elderly patients (≥60 years), group Ⅱ included youngsters (14～40 years), all the patients were selectively ablated the slow pathway for AVNRT and compare the electrophysiological characteristics of AVNRT before and after ablation Results There were 30 patients in group Ⅰ and 40 patients in group Ⅱ, all the patients were successfully in ablating AVNRT, no recurrence and no complication were found When comparing between groups, it was found that there were more organic heart diseases while fewer remaining slow pathways after ablation in group Ⅰ the differences in CL SVT , CL SINUS before and after ablation, and Wen AVN after ablation were remarkable,all of which in group Ⅰ are longer than those in group Ⅱ Conclusion The electrophysiological characteristics were weaker in elderly patients than in youngsters, no matter before or after ablation, but the basic electrophysiological characteristics and effects of ablation were influenced not much by ages