The Related Investigation Of Complication And Recrudesce After Radiofrequency Catheter Ablation On Paroxysmal Supraventricular Tachycardia

Objective:By reviewing patients undergoing Radiofrequency Catheter Ablation(RFCA) of recurrence and occurrence ofⅢdegree atrioventricular block (AVB), to evaluate radiofrequency ablation for paroxysmal supraventricular tachycardia in long-term efficacy and prognostic factors. Analysis of the Concurrent RFCA AVB of the relevant factors, and factors related to recurrence of tachycardia.Methods:1083 patients with paroxysmal supraventricular tachycardia by catheter radiofrequency ablation as the observation object, in which 531 men, women 552 cases, aged 7 to 84 years, mean age (44.1±16.3) years old, were divided into groups without complications and with complications group; postoperative recurrence and no recurrence group. Then statistics on their gender, age, RFCA procedure discharge time, energy, position, AVB occurred time, jump sign, whether pacing therapy, hypertension, diabetes and other changing circumstances.Results:After the RFCA,34patients got atrioventricular block (16 male and 18 female).The age from 12 to 76 years, mean (51.4±15.5) years, the rate was 3.1%, including a transient (＜30min) 23cases,4 cases resumption of conduction in a day, one case resumption of conduction after three days, one case resumption of conduction after a week,5 cases can not restore conduction function and had to implanted the permanent pacemaker. We can seeⅢ°AVB group average age are 51.4±15.5 years. Non-Ⅲ°AVB group's average age are 43.9±16.4years, and there are significantly differences(P＜0.05). WithⅢ°AVB cases the age (r= 0.082, P＜0.05), discharge energy (r=-0.099, P＜0.05),discharge time (r= 0.115, P＜0.001), discharge location (r=-0.130, P＜0.001), diagnosis (r=-0.154, P＜0.001) has related. Logistic regression put diagnosis (OR=0.022, P＜0.001), discharge times (OR= 0.996, P＜0.001), dischargelocation (OR= 2.204, P＜0.05) into the equation, draw y= 1.654-3.830x1-0.004x2+0.790 x3 (x1= diagnosis, x2= discharge time, x3= discharge area), OR values were＞0. The average age of recurrence are 39.0±14.8 years, the average age of non-recurrent group are44.4±16.4 years, and there are significantly differences(P＜0.05). Cox regression only the discharge time (OR= 1.000, P＜0.05) and surgery date (OR= 1.000, P＜0.05) opt equation, but the OR values are 1.Conclusion:Ⅲ°AVB are related with age, theⅢ°AVB are increases with age. The discharge energy and discharge time is negatively related withⅢ°AVB; the discharge area is low correlation, and negative correlation with age of patients diagnosis. Ablation of the Koch triangle need to be more careful, be clear before discharge diagnosis, if thereⅢ°AVB omen you had to stop operation immediately. Diabetes and hypertension havn't effect withⅢ°AVB and recurrence.