Balla Cristina, Foresti Sara, Ali Hussam, Sorgente Antonio, Egidy Assenza Gabriele, De Ambroggi Guido, Epicoco Gianluca, Lupo Pierpaolo, Cappato Riccardo
Cardiovascular Institute University of Ferrara Ferrara Italy.
Arrhythmia and Electrophysiology II Unit Humanitas Gavazzeni Clinics Bergamo Italy.
J Arrhythm. 2019 Mar 7;35(2):290-295. doi: 10.1002/joa3.12172. eCollection 2019 Apr.
Ectopic atrial tachycardia (EAT) is a common arrhythmia in children, adolescents, and young adults. Radiofrequency (RF) ablation is often considered the treatment of choice in this population. We sought to evaluate the long-term follow-up after RF ablation.
We retrospectively analyzed 36 young patients (age range 8-29 years), with clinical signs and symptoms suspected for EAT who underwent an electrophysiological study in our center. We evaluated the safety and acute success rate of ablation and the long-term follow-up. Ectopic foci were more frequently localized in the right atrium along the crista terminalis (28%) and EAT was successfully terminated in 97% of patients. At median follow-up (38 months), the recurrence rate was 20% with mostly recurrences expressed within 6 months.
The study confirmed the safety and high acute success rate of EAT ablation in a population of children, adolescents, and young adults. Therefore, catheter ablation of EAT can be considered early in the course of treatment of these patients. The evidence of most recurrences within 6 months could be useful for advising patients on likely outcomes.
异位房性心动过速（EAT）是儿童、青少年和青年人群中常见的心律失常。射频（RF）消融术常被认为是该人群的首选治疗方法。我们旨在评估射频消融术后的长期随访情况。
我们回顾性分析了36例年龄在8至29岁之间、有疑似EAT临床症状和体征且在我们中心接受电生理研究的年轻患者。我们评估了消融的安全性和急性成功率以及长期随访情况。异位病灶更常位于右心房沿界嵴处（28%），97%的患者EAT成功终止。在中位随访期（38个月），复发率为20%，大多数复发在6个月内出现。
该研究证实了在儿童、青少年和青年人群中EAT消融的安全性和高急性成功率。因此，对于这些患者，可在治疗过程早期考虑导管消融EAT。6个月内大多数复发的证据可能有助于向患者告知可能的预后情况。
