Curative effect of radiofrequency catheter ablation on pediatric tachyarrhythmia

ZHOU Jian-hua; WU Hui-hui

doi:10.3969/j.1674-4055.2015.02.28

Abstract：Objective To analyze electrophysiological examination of pediatric tachyarrhythmia, and discuss the curative effect of radiofrequency catheter ablation (RFCA) on pediatric tachyarrhythmia.Methods The child patients (n=102) diagnosed with electrophysiological examination were chosen and curative effects of RFCA on different types of arrhythmia were analyzed and compared in different groups.Results ①Among 102 cases, there were 58 (56.86%) with AVRT, 21 (20.59%) with AVNRT, 16 (15.69%) with VT/PVC, 5 (4.90%) with FAT, and 2 (1.96%) with AF/IRAT. ②There were 98 (96.08%) cases accepted RFCA, which was successful in 94 (95.92%) and failed in 4 (4.08%). There were 56 AVRT cases were treated with RFCA, and success rate was 98.21%, failure rate was 1.79% and recurrence rate was 7.25%. There were 20 AVNRT cases were treated with RFCA, and success rate was 100.00% and recurrence rate was 5.00%. There were 15 VT/PVC cases were treated with RFCA, and success rate was 86.67%, failure rate was 13.33% and recurrence rate was 7.69%. There were 5 FAT cases were treated with RFCA, and success rate was 80% and recurrence rate was 25%. There were 2 AF/IRAT cases were treated with RFCA, and success rate was 100.00%. ③Among 15 cases aged<3, there were 14 treated with RFCA, which was successful in 13 (92.86%), failed in 1 (7.14%) and recurrent in 1 (7.69%). Among 28 cases aged 3-7, there were 27 treated with RFCA, which was successful in 26 (96.30%), failed in 1 (3.70%) and recurrent in 2 (7.69%). Among 59 cases aged>7, there were 57 treated with RFCA, which was successful in 55 (96.49%), failed in 2 (4.08%) and recurrent in 4 (7.45%). The comparison in success rate and recurrence rate had no statistical significance among 3 groups, and failure rate was higher in cases aged<3 than that in other groups.Conclusion RFCA has higher success rate and lower recurrence rate, which can be taken as the first choice for curing pediatric tachyarrhythmia.