Clinical features and outcomes of radiofrequency catheter ablation of atrial flutter in children
10.3760/cma.j.issn.0578-1310.2017.04.007
- VernacularTitle: 心房扑动患儿射频消融治疗及临床资料分析
- Author:
He JIANG
1
;
Xiaomei LI
;
Yi ZHANG
;
Haiju LIU
;
Meiting LI
;
Haiyan GE
Author Information
1. Department of Pediatric Cardiology, Heart Center, the First Hospital of Tsinghua University(Beijing Huaxin Hospital), Beijing 100016, China
- Publication Type:Journal Article
- Keywords:
Catheter ablation;
Child;
Atrial flutter;
Sick sinus syndrome
- From:
Chinese Journal of Pediatrics
2017;55(4):267-271
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To explore the clinical features of atrial flutter (AFL) and evaluate the efficacy of radiofrequency catheter ablation (RFCA) for AFL in children.
Method:Data were collected and analyzed on 50 consecutive pediatric AFL patients (male 37/female 13) who underwent electrophysiology study and RFCA from February 2009 to November 2016 in a case observational study. The average age was (6.2±3.5) years and body weight was (23.7±13.5) kg. Heart structure was normal in 26 patients. Twenty-four patients had congenital heart disease (CHD) and among them 22 patients underwent repaired surgery before. Patients were followed-up for 1 month to 7 years after RFCA. Clinical features and the outcomes of RFCA in AFL patients were analyzed.
Result:The average onset age was (4.2±3.3) years. Of these patients, 84% had persistent AFL and 16% paroxysmal AFL. AFL with sick sinus syndrome (SSS) occurred in 36% patients without statistically significant difference between the groups with and without CHD (38.9%(7/18) vs. 61.1%(11/18), respectively, P=0.239 5); 49 patients underwent RFCA except one case with atrial standstill during the procedure. The total acute success rate was 96%. The follow-up recurrence rate was 8%.No complication of the procedures was observed. The cavotricuspid isthmus-dependent AFL occurred in all patients without CHD. However, in the children with CHD after the repair surgery 10 (45%) cases were with cavotricuspid isthmus-dependent AFL, 4 (8%) with atrial scars-dependent AFL, and 8(16%) with both cavotricuspid isthmus and atrial scars-dependent AFL.
Conclusion:RFCA was effective and safe for pediatric AFL. There is no difference on the acute success rate, the follow-up AFL recurrence rate, as well as occurrence of SSS between the groups with and without CHD. AFL patients with CHD included the cavotricuspid isthmus-dependent AFL, atrial scars-dependent AFL or both.
